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< title > 配置Pod的liveness和readiness探针 · Kubernetes Handbook - jimmysong.io< / title >
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< a href = "https://jimmysong.io" target = "_blank" class = "custom-link" > Jimmy Song< / a >
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< li class = "divider" > < / li >
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< li class = "header" > 前言< / li >
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< li class = "chapter " data-level = "1.1" data-path = "../" >
< a href = "../" >
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< b > 1.1.< / b >
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序言
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< / a >
< / li >
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< li class = "chapter " data-level = "1.2" data-path = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
< a href = "../cloud-native/kubernetes-and-cloud-native-app-overview.html" >
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< b > 1.2.< / b >
Kubernetes与云原生应用概览
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< / a >
< / li >
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< li class = "header" > 概念与原理< / li >
< li class = "chapter " data-level = "2.1" data-path = "../concepts/" >
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< a href = "../concepts/" >
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< b > 2.1.< / b >
Kubernetes架构
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.2" data-path = "../concepts/concepts.html" >
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< a href = "../concepts/concepts.html" >
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< b > 2.2.< / b >
设计理念
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3" data-path = "../concepts/objects.html" >
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< a href = "../concepts/objects.html" >
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< b > 2.3.< / b >
资源对象与基本概念解析
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< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "2.3.1" data-path = "../concepts/pod-overview.html" >
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< a href = "../concepts/pod-overview.html" >
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< b > 2.3.1.< / b >
Pod
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< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "2.3.1.1" data-path = "../concepts/pod.html" >
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< a href = "../concepts/pod.html" >
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< b > 2.3.1.1.< / b >
Pod解析
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.3.1.2" data-path = "../concepts/init-containers.html" >
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< a href = "../concepts/init-containers.html" >
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< b > 2.3.1.2.< / b >
Init容器
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.3.1.3" data-path = "../concepts/pod-security-policy.html" >
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< a href = "../concepts/pod-security-policy.html" >
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< b > 2.3.1.3.< / b >
Pod安全策略
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.3.1.4" data-path = "../concepts/pod-lifecycle.html" >
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< a href = "../concepts/pod-lifecycle.html" >
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< b > 2.3.1.4.< / b >
Pod的生命周期
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< / a >
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< / li >
< li class = "chapter " data-level = "2.3.1.5" data-path = "../concepts/pod-hook.html" >
< a href = "../concepts/pod-hook.html" >
< b > 2.3.1.5.< / b >
Pod hook
< / a >
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< / li >
< li class = "chapter " data-level = "2.3.1.6" data-path = "../concepts/pod-preset.html" >
< a href = "../concepts/pod-preset.html" >
< b > 2.3.1.6.< / b >
Pod Preset
< / a >
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< / ul >
< / li >
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< li class = "chapter " data-level = "2.3.2" data-path = "../concepts/node.html" >
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< a href = "../concepts/node.html" >
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< b > 2.3.2.< / b >
Node
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.3" data-path = "../concepts/namespace.html" >
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< a href = "../concepts/namespace.html" >
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< b > 2.3.3.< / b >
Namespace
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.4" data-path = "../concepts/service.html" >
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< a href = "../concepts/service.html" >
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< b > 2.3.4.< / b >
Service
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.5" data-path = "../concepts/volume.html" >
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< a href = "../concepts/volume.html" >
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< b > 2.3.5.< / b >
Volume和Persistent Volume
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.6" data-path = "../concepts/deployment.html" >
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< a href = "../concepts/deployment.html" >
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< b > 2.3.6.< / b >
Deployment
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.7" data-path = "../concepts/secret.html" >
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< a href = "../concepts/secret.html" >
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< b > 2.3.7.< / b >
Secret
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.8" data-path = "../concepts/statefulset.html" >
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< a href = "../concepts/statefulset.html" >
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< b > 2.3.8.< / b >
StatefulSet
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.9" data-path = "../concepts/daemonset.html" >
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< a href = "../concepts/daemonset.html" >
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< b > 2.3.9.< / b >
DaemonSet
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.10" data-path = "../concepts/serviceaccount.html" >
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< a href = "../concepts/serviceaccount.html" >
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< b > 2.3.10.< / b >
ServiceAccount
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.11" data-path = "../concepts/replicaset.html" >
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< a href = "../concepts/replicaset.html" >
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< b > 2.3.11.< / b >
ReplicationController和ReplicaSet
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.12" data-path = "../concepts/job.html" >
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< a href = "../concepts/job.html" >
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< b > 2.3.12.< / b >
Job
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.13" data-path = "../concepts/cronjob.html" >
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< a href = "../concepts/cronjob.html" >
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< b > 2.3.13.< / b >
CronJob
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.14" data-path = "../concepts/ingress.html" >
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< a href = "../concepts/ingress.html" >
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< b > 2.3.14.< / b >
Ingress
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< / a >
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< ul class = "articles" >
< li class = "chapter " data-level = "2.3.14.1" data-path = "../concepts/traefik-ingress-controller.html" >
< a href = "../concepts/traefik-ingress-controller.html" >
< b > 2.3.14.1.< / b >
Traefik Ingress Controller
< / a >
< / li >
< / ul >
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< / li >
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< li class = "chapter " data-level = "2.3.15" data-path = "../concepts/configmap.html" >
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< a href = "../concepts/configmap.html" >
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< b > 2.3.15.< / b >
ConfigMap
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< / a >
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< ul class = "articles" >
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< li class = "chapter " data-level = "2.3.15.1" data-path = "../concepts/configmap-hot-update.html" >
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< a href = "../concepts/configmap-hot-update.html" >
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< b > 2.3.15.1.< / b >
ConfigMap的热更新
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< / a >
< / li >
< / ul >
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< / li >
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< li class = "chapter " data-level = "2.3.16" data-path = "../concepts/horizontal-pod-autoscaling.html" >
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< a href = "../concepts/horizontal-pod-autoscaling.html" >
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< b > 2.3.16.< / b >
Horizontal Pod Autoscaling
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< / a >
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< ul class = "articles" >
< li class = "chapter " data-level = "2.3.16.1" data-path = "../concepts/custom-metrics-hpa.html" >
< a href = "../concepts/custom-metrics-hpa.html" >
< b > 2.3.16.1.< / b >
自定义指标HPA
< / a >
< / li >
< / ul >
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< / li >
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< li class = "chapter " data-level = "2.3.17" data-path = "../concepts/label.html" >
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< a href = "../concepts/label.html" >
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< b > 2.3.17.< / b >
Label
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.3.18" data-path = "../concepts/garbage-collection.html" >
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< a href = "../concepts/garbage-collection.html" >
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< b > 2.3.18.< / b >
垃圾收集
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< / a >
< / li >
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< li class = "chapter " data-level = "2.3.19" data-path = "../concepts/network-policy.html" >
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< a href = "../concepts/network-policy.html" >
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< b > 2.3.19.< / b >
NetworkPolicy
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< / a >
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< / li >
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< li class = "chapter " data-level = "2.3.20" data-path = "../concepts/annotation.html" >
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< a href = "../concepts/annotation.html" >
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< b > 2.3.20.< / b >
Annotation
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< / a >
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< / li >
< li class = "chapter " data-level = "2.3.21" data-path = "../concepts/aggregated-api-server.html" >
< a href = "../concepts/aggregated-api-server.html" >
< b > 2.3.21.< / b >
Aggregated API Server
< / a >
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< / li >
< li class = "chapter " data-level = "2.3.22" data-path = "../concepts/custom-resource.html" >
< a href = "../concepts/custom-resource.html" >
< b > 2.3.22.< / b >
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使用自定义资源扩展API
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< / a >
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< / li >
< li class = "chapter " data-level = "2.3.23" data-path = "../concepts/apiservice.html" >
< a href = "../concepts/apiservice.html" >
< b > 2.3.23.< / b >
APIService
< / a >
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< / li >
< / ul >
< / li >
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< li class = "header" > 用户指南< / li >
< li class = "chapter " data-level = "3.1" data-path = "./" >
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< a href = "./" >
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< b > 3.1.< / b >
用户指南
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< / a >
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< / li >
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< li class = "chapter " data-level = "3.2" data-path = "resource-configuration.html" >
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< a href = "resource-configuration.html" >
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< b > 3.2.< / b >
资源对象配置
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< / a >
< ul class = "articles" >
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< li class = "chapter active" data-level = "3.2.1" data-path = "configure-liveness-readiness-probes.html" >
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< a href = "configure-liveness-readiness-probes.html" >
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< b > 3.2.1.< / b >
配置Pod的liveness和readiness探针
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< / a >
< / li >
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< li class = "chapter " data-level = "3.2.2" data-path = "configure-pod-service-account.html" >
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< a href = "configure-pod-service-account.html" >
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< b > 3.2.2.< / b >
配置Pod的Service Account
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< / a >
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< / li >
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< li class = "chapter " data-level = "3.2.3" data-path = "secret-configuration.html" >
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< a href = "secret-configuration.html" >
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< b > 3.2.3.< / b >
Secret配置
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< / a >
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< / li >
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< li class = "chapter " data-level = "3.2.4" data-path = "resource-quota-management.html" >
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< a href = "resource-quota-management.html" >
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< b > 3.2.4.< / b >
管理namespace中的资源配额
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< / a >
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< / li >
< / ul >
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< li class = "chapter " data-level = "3.3" data-path = "command-usage.html" >
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< a href = "command-usage.html" >
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< b > 3.3.< / b >
命令使用
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< / a >
< ul class = "articles" >
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< li class = "chapter " data-level = "3.3.1" data-path = "docker-cli-to-kubectl.html" >
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< a href = "docker-cli-to-kubectl.html" >
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< b > 3.3.1.< / b >
docker用户过度到kubectl命令行指南
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< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.3.2" data-path = "using-kubectl.html" >
2017-08-21 17:44:43 +08:00
< a href = "using-kubectl.html" >
2017-11-15 21:18:59 +08:00
< b > 3.3.2.< / b >
kubectl命令概览
2017-08-21 17:44:43 +08:00
< / a >
2017-09-16 20:56:43 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.3.3" data-path = "kubectl-cheatsheet.html" >
2017-09-16 20:56:43 +08:00
2017-11-03 17:48:10 +08:00
< a href = "kubectl-cheatsheet.html" >
2017-09-16 20:56:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 3.3.3.< / b >
kubectl命令技巧大全
2017-09-16 20:56:43 +08:00
< / a >
2017-11-23 13:06:23 +08:00
< / li >
< li class = "chapter " data-level = "3.3.4" data-path = "using-etcdctl-to-access-kubernetes-data.html" >
< a href = "using-etcdctl-to-access-kubernetes-data.html" >
< b > 3.3.4.< / b >
使用etcdctl访问kuberentes数据
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4" data-path = "cluster-security-management.html" >
2017-08-21 17:44:43 +08:00
2017-09-07 12:29:13 +08:00
< a href = "cluster-security-management.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 3.4.< / b >
集群安全性管理
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.1" data-path = "managing-tls-in-a-cluster.html" >
2017-08-21 17:44:43 +08:00
< a href = "managing-tls-in-a-cluster.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.1.< / b >
管理集群中的TLS
2017-08-21 17:44:43 +08:00
< / a >
2017-08-21 18:44:34 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.2" data-path = "kubelet-authentication-authorization.html" >
2017-08-21 18:44:34 +08:00
< a href = "kubelet-authentication-authorization.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.2.< / b >
kubelet的认证授权
2017-08-21 18:44:34 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.3" data-path = "tls-bootstrapping.html" >
2017-08-21 18:44:34 +08:00
< a href = "tls-bootstrapping.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.3.< / b >
TLS bootstrap
2017-08-21 18:44:34 +08:00
< / a >
2017-08-31 14:23:44 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.4" data-path = "kubectl-user-authentication-authorization.html" >
2017-08-31 14:23:44 +08:00
< a href = "kubectl-user-authentication-authorization.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.4.< / b >
创建用户认证授权的kubeconfig文件
2017-08-31 14:23:44 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.5" data-path = "rbac.html" >
2017-08-31 14:23:44 +08:00
< a href = "rbac.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.5.< / b >
RBAC——基于角色的访问控制
2017-08-31 14:23:44 +08:00
< / a >
2017-09-07 14:13:59 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.6" data-path = "ip-masq-agent.html" >
2017-09-07 14:13:59 +08:00
< a href = "ip-masq-agent.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.6.< / b >
IP伪装代理
2017-09-07 14:13:59 +08:00
< / a >
2017-11-10 23:22:45 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.7" data-path = "auth-with-kubeconfig-or-token.html" >
2017-11-10 23:22:45 +08:00
< a href = "auth-with-kubeconfig-or-token.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.7.< / b >
使用kubeconfig或token进行用户身份认证
2017-11-10 23:22:45 +08:00
< / a >
2017-11-14 13:46:53 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.4.8" data-path = "authentication.html" >
2017-11-14 13:46:53 +08:00
< a href = "authentication.html" >
2017-11-15 21:18:59 +08:00
< b > 3.4.8.< / b >
kubernetes中的用户与身份认证授权
2017-11-14 13:46:53 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.5" data-path = "access-kubernetes-cluster.html" >
2017-08-21 17:44:43 +08:00
< a href = "access-kubernetes-cluster.html" >
2017-11-15 21:18:59 +08:00
< b > 3.5.< / b >
2017-11-21 20:10:10 +08:00
访问Kubernetes集群
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.5.1" data-path = "access-cluster.html" >
2017-08-21 17:44:43 +08:00
< a href = "access-cluster.html" >
2017-11-15 21:18:59 +08:00
< b > 3.5.1.< / b >
访问集群
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.5.2" data-path = "authenticate-across-clusters-kubeconfig.html" >
2017-08-21 17:44:43 +08:00
< a href = "authenticate-across-clusters-kubeconfig.html" >
2017-11-15 21:18:59 +08:00
< b > 3.5.2.< / b >
2017-11-21 20:10:10 +08:00
使用kubeconfig文件配置跨集群认证
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.5.3" data-path = "connecting-to-applications-port-forward.html" >
2017-08-21 17:44:43 +08:00
< a href = "connecting-to-applications-port-forward.html" >
2017-11-15 21:18:59 +08:00
< b > 3.5.3.< / b >
通过端口转发访问集群中的应用程序
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.5.4" data-path = "service-access-application-cluster.html" >
2017-08-21 17:44:43 +08:00
< a href = "service-access-application-cluster.html" >
2017-11-15 21:18:59 +08:00
< b > 3.5.4.< / b >
2017-11-21 20:10:10 +08:00
使用service访问群集中的应用程序
< / a >
< / li >
< li class = "chapter " data-level = "3.5.5" data-path = "accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< a href = "accessing-kubernetes-pods-from-outside-of-the-cluster.html" >
< b > 3.5.5.< / b >
从外部访问Kubernetes中的Pod
2017-08-21 17:44:43 +08:00
< / a >
2017-11-22 18:43:03 +08:00
< / li >
< li class = "chapter " data-level = "3.5.6" data-path = "carbin-mobile-dashboard-for-kubernetes.html" >
< a href = "carbin-mobile-dashboard-for-kubernetes.html" >
< b > 3.5.6.< / b >
Carbin - Kuberentes手机客户端
< / a >
2017-11-29 15:07:48 +08:00
< / li >
< li class = "chapter " data-level = "3.5.7" data-path = "kubernetes-desktop-client.html" >
< a href = "kubernetes-desktop-client.html" >
< b > 3.5.7.< / b >
Kubernetic - Kubernetes桌面客户端
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.6" data-path = "application-development-deployment-flow.html" >
2017-08-21 17:44:43 +08:00
< a href = "application-development-deployment-flow.html" >
2017-11-15 21:18:59 +08:00
< b > 3.6.< / b >
在kubernetes中开发部署应用
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.6.1" data-path = "deploy-applications-in-kubernetes.html" >
2017-08-21 17:44:43 +08:00
< a href = "deploy-applications-in-kubernetes.html" >
2017-11-15 21:18:59 +08:00
< b > 3.6.1.< / b >
适用于kubernetes的应用开发部署流程
2017-08-21 17:44:43 +08:00
< / a >
2017-08-21 18:44:34 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.6.2" data-path = "migrating-hadoop-yarn-to-kubernetes.html" >
2017-08-21 18:44:34 +08:00
< a href = "migrating-hadoop-yarn-to-kubernetes.html" >
2017-11-15 21:18:59 +08:00
< b > 3.6.2.< / b >
迁移传统应用到kubernetes中——以Hadoop YARN为例
2017-08-21 18:44:34 +08:00
< / a >
2017-10-23 13:40:58 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "3.6.3" data-path = "using-statefulset.html" >
2017-10-23 13:40:58 +08:00
< a href = "using-statefulset.html" >
2017-11-15 21:18:59 +08:00
< b > 3.6.3.< / b >
使用StatefulSet部署用状态应用
2017-10-23 13:40:58 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "header" > 最佳实践< / li >
< li class = "chapter " data-level = "4.1" data-path = "../practice/" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/" >
2017-11-15 21:18:59 +08:00
< b > 4.1.< / b >
最佳实践概览
2017-08-21 17:44:43 +08:00
< / a >
2017-11-15 21:18:59 +08:00
< / li >
2017-08-21 17:44:43 +08:00
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2" data-path = "../practice/install-kubernetes-on-centos.html" >
2017-08-21 17:44:43 +08:00
2017-12-19 17:59:00 +08:00
< a href = "../practice/install-kubernetes-on-centos.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.2.< / b >
2017-12-15 19:51:45 +08:00
在CentOS上部署kubernetes集群
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.2.1" data-path = "../practice/create-tls-and-secret-key.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/create-tls-and-secret-key.html" >
2017-11-15 21:18:59 +08:00
< b > 4.2.1.< / b >
创建TLS证书和秘钥
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.2.2" data-path = "../practice/create-kubeconfig.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/create-kubeconfig.html" >
2017-11-15 21:18:59 +08:00
< b > 4.2.2.< / b >
创建kubeconfig文件
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.2.3" data-path = "../practice/etcd-cluster-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/etcd-cluster-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.2.3.< / b >
创建高可用etcd集群
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.2.4" data-path = "../practice/kubectl-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/kubectl-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.2.4.< / b >
安装kubectl命令行工具
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.2.5" data-path = "../practice/master-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/master-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.2.5.< / b >
部署master节点
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2.6" data-path = "../practice/flannel-installation.html" >
2017-08-21 17:44:43 +08:00
2017-12-19 17:59:00 +08:00
< a href = "../practice/flannel-installation.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.2.6.< / b >
2017-12-19 17:59:00 +08:00
安装flannel网络插件
< / a >
< / li >
< li class = "chapter " data-level = "4.2.7" data-path = "../practice/node-installation.html" >
< a href = "../practice/node-installation.html" >
< b > 4.2.7.< / b >
2017-11-15 21:18:59 +08:00
部署node节点
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2.8" data-path = "../practice/kubedns-addon-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/kubedns-addon-installation.html" >
2017-12-19 17:59:00 +08:00
< b > 4.2.8.< / b >
2017-11-15 21:18:59 +08:00
安装kubedns插件
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2.9" data-path = "../practice/dashboard-addon-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/dashboard-addon-installation.html" >
2017-12-19 17:59:00 +08:00
< b > 4.2.9.< / b >
2017-11-15 21:18:59 +08:00
安装dashboard插件
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2.10" data-path = "../practice/heapster-addon-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/heapster-addon-installation.html" >
2017-12-19 17:59:00 +08:00
< b > 4.2.10.< / b >
2017-11-15 21:18:59 +08:00
安装heapster插件
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-19 17:59:00 +08:00
< li class = "chapter " data-level = "4.2.11" data-path = "../practice/efk-addon-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/efk-addon-installation.html" >
2017-12-19 17:59:00 +08:00
< b > 4.2.11.< / b >
2017-11-15 21:18:59 +08:00
安装EFK插件
2017-08-21 17:44:43 +08:00
< / a >
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3" data-path = "../practice/service-discovery-and-loadbalancing.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/service-discovery-and-loadbalancing.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.< / b >
服务发现与负载均衡
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3.1" data-path = "../practice/traefik-ingress-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/traefik-ingress-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.1.< / b >
安装Traefik ingress
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3.2" data-path = "../practice/distributed-load-test.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/distributed-load-test.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.2.< / b >
分布式负载测试
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3.3" data-path = "../practice/network-and-cluster-perfermance-test.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/network-and-cluster-perfermance-test.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.3.< / b >
网络和集群性能测试
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3.4" data-path = "../practice/edge-node-configuration.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/edge-node-configuration.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.4.< / b >
边缘节点配置
2017-08-21 17:44:43 +08:00
< / a >
2017-10-27 19:09:01 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.3.5" data-path = "../practice/nginx-ingress-installation.html" >
2017-10-27 19:09:01 +08:00
< a href = "../practice/nginx-ingress-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.3.5.< / b >
安装Nginx ingress
2017-10-27 19:09:01 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4" data-path = "../practice/operation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/operation.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.< / b >
运维管理
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.1" data-path = "../practice/service-rolling-update.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/service-rolling-update.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.1.< / b >
服务滚动升级
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.2" data-path = "../practice/app-log-collection.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/app-log-collection.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.2.< / b >
应用日志收集
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.3" data-path = "../practice/configuration-best-practice.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/configuration-best-practice.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.3.< / b >
配置最佳实践
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.4" data-path = "../practice/monitor.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/monitor.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.4.< / b >
集群及应用监控
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.5" data-path = "../practice/data-persistence-problem.html" >
2017-08-21 17:44:43 +08:00
< a href = "../practice/data-persistence-problem.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.5.< / b >
数据持久化问题
2017-08-21 17:44:43 +08:00
< / a >
2017-09-03 15:58:39 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.4.6" data-path = "../practice/manage-compute-resources-container.html" >
2017-09-03 15:58:39 +08:00
< a href = "../practice/manage-compute-resources-container.html" >
2017-11-15 21:18:59 +08:00
< b > 4.4.6.< / b >
管理容器的计算资源
2017-09-03 15:58:39 +08:00
< / a >
2017-09-25 21:41:08 +08:00
< / li >
2017-11-09 10:55:38 +08:00
< / ul >
2017-09-25 21:41:08 +08:00
2017-11-09 10:55:38 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5" data-path = "../practice/storage.html" >
2017-11-09 10:55:38 +08:00
< a href = "../practice/storage.html" >
2017-09-25 21:41:08 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.5.< / b >
存储管理
2017-11-09 10:55:38 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5.1" data-path = "../practice/glusterfs.html" >
2017-11-09 10:55:38 +08:00
< a href = "../practice/glusterfs.html" >
2017-11-15 21:18:59 +08:00
< b > 4.5.1.< / b >
GlusterFS
2017-11-09 10:55:38 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5.1.1" data-path = "../practice/using-glusterfs-for-persistent-storage.html" >
2017-11-09 10:55:38 +08:00
< a href = "../practice/using-glusterfs-for-persistent-storage.html" >
2017-11-15 21:18:59 +08:00
< b > 4.5.1.1.< / b >
使用GlusterFS做持久化存储
2017-09-25 21:41:08 +08:00
< / a >
2017-10-16 17:36:01 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5.1.2" data-path = "../practice/storage-for-containers-using-glusterfs-with-openshift.html" >
2017-10-16 17:36:01 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/storage-for-containers-using-glusterfs-with-openshift.html" >
2017-10-16 17:36:01 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.5.1.2.< / b >
在OpenShift中使用GlusterFS做持久化存储
2017-10-16 17:36:01 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5.2" data-path = "../practice/cephfs.html" >
2017-08-21 17:44:43 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/cephfs.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.5.2.< / b >
CephFS
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.5.2.1" data-path = "../practice/using-ceph-for-persistent-storage.html" >
2017-08-21 17:44:43 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/using-ceph-for-persistent-storage.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.5.2.1.< / b >
使用Ceph做持久化存储
2017-11-09 10:55:38 +08:00
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.6" data-path = "../practice/monitoring.html" >
2017-11-09 10:55:38 +08:00
< a href = "../practice/monitoring.html" >
2017-11-15 21:18:59 +08:00
< b > 4.6.< / b >
集群与应用监控
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.6.1" data-path = "../practice/heapster.html" >
2017-08-21 17:44:43 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/heapster.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.6.1.< / b >
Heapster
2017-08-21 17:44:43 +08:00
< / a >
2017-11-09 10:55:38 +08:00
< ul class = "articles" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.6.1.1" data-path = "../practice/using-heapster-to-get-object-metrics.html" >
2017-08-21 17:44:43 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/using-heapster-to-get-object-metrics.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.6.1.1.< / b >
使用Heapster获取集群和对象的metric数据
2017-08-21 17:44:43 +08:00
< / a >
2017-09-01 21:04:51 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.6.2" data-path = "../practice/prometheus.html" >
2017-09-01 21:04:51 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/prometheus.html" >
2017-09-01 21:04:51 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.6.2.< / b >
Prometheus
2017-09-01 21:04:51 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.6.2.1" data-path = "../practice/using-prometheus-to-monitor-kuberentes-cluster.html" >
2017-09-01 21:04:51 +08:00
2017-11-09 10:55:38 +08:00
< a href = "../practice/using-prometheus-to-monitor-kuberentes-cluster.html" >
2017-09-01 21:04:51 +08:00
2017-11-15 21:18:59 +08:00
< b > 4.6.2.1.< / b >
使用Prometheus监控kubernetes集群
2017-09-01 21:04:51 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
< / ul >
2017-10-19 15:31:08 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.7" data-path = "../practice/services-management-tool.html" >
2017-10-19 15:31:08 +08:00
< a href = "../practice/services-management-tool.html" >
2017-11-15 21:18:59 +08:00
< b > 4.7.< / b >
服务编排管理
2017-10-19 15:31:08 +08:00
< / a >
2017-10-20 16:22:43 +08:00
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.7.1" data-path = "../practice/helm.html" >
2017-10-20 16:22:43 +08:00
< a href = "../practice/helm.html" >
2017-11-15 21:18:59 +08:00
< b > 4.7.1.< / b >
使用Helm管理kubernetes应用
2017-10-20 16:22:43 +08:00
< / a >
2017-10-27 11:59:37 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.7.2" data-path = "../practice/create-private-charts-repo.html" >
2017-10-27 11:59:37 +08:00
< a href = "../practice/create-private-charts-repo.html" >
2017-11-15 21:18:59 +08:00
< b > 4.7.2.< / b >
构建私有Chart仓库
2017-10-27 11:59:37 +08:00
< / a >
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.8" data-path = "../practice/ci-cd.html" >
2017-10-27 11:59:37 +08:00
< a href = "../practice/ci-cd.html" >
2017-11-15 21:18:59 +08:00
< b > 4.8.< / b >
持续集成与发布
2017-10-27 11:59:37 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.8.1" data-path = "../practice/jenkins-ci-cd.html" >
2017-10-27 11:59:37 +08:00
< a href = "../practice/jenkins-ci-cd.html" >
2017-11-15 21:18:59 +08:00
< b > 4.8.1.< / b >
使用Jenkins进行持续集成与发布
2017-10-27 11:59:37 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.8.2" data-path = "../practice/drone-ci-cd.html" >
2017-10-27 11:59:37 +08:00
< a href = "../practice/drone-ci-cd.html" >
2017-11-15 21:18:59 +08:00
< b > 4.8.2.< / b >
使用Drone进行持续集成与发布
2017-10-27 11:59:37 +08:00
< / a >
2017-11-02 16:33:01 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.9" data-path = "../practice/update-and-upgrade.html" >
2017-11-02 16:33:01 +08:00
< a href = "../practice/update-and-upgrade.html" >
2017-11-15 21:18:59 +08:00
< b > 4.9.< / b >
更新与升级
2017-11-02 16:33:01 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.9.1" data-path = "../practice/manually-upgrade.html" >
2017-11-02 16:33:01 +08:00
< a href = "../practice/manually-upgrade.html" >
2017-11-15 21:18:59 +08:00
< b > 4.9.1.< / b >
2017-11-28 11:57:57 +08:00
手动升级kubernetes集群
2017-11-02 16:33:01 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "4.9.2" data-path = "../practice/dashboard-upgrade.html" >
2017-11-02 16:33:01 +08:00
< a href = "../practice/dashboard-upgrade.html" >
2017-11-15 21:18:59 +08:00
< b > 4.9.2.< / b >
升级dashboard
2017-11-02 16:33:01 +08:00
< / a >
2017-10-20 16:22:43 +08:00
< / li >
< / ul >
2017-08-21 17:44:43 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "header" > 领域应用< / li >
< li class = "chapter " data-level = "5.1" data-path = "../usecases/" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/" >
2017-11-15 21:18:59 +08:00
< b > 5.1.< / b >
领域应用概览
2017-08-21 17:44:43 +08:00
< / a >
2017-11-15 21:18:59 +08:00
< / li >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.2" data-path = "../usecases/microservices.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/microservices.html" >
2017-11-15 21:18:59 +08:00
< b > 5.2.< / b >
微服务架构
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.2.1" data-path = "../usecases/service-discovery-in-microservices.html" >
2017-09-20 21:55:19 +08:00
< a href = "../usecases/service-discovery-in-microservices.html" >
2017-11-15 21:18:59 +08:00
< b > 5.2.1.< / b >
微服务中的服务发现
2017-09-20 21:55:19 +08:00
< / a >
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3" data-path = "../usecases/service-mesh.html" >
2017-09-20 21:55:19 +08:00
< a href = "../usecases/service-mesh.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.< / b >
Service Mesh 服务网格
2017-09-20 21:55:19 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.1" data-path = "../usecases/istio.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/istio.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.1.< / b >
Istio
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.1.1" data-path = "../usecases/istio-installation.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/istio-installation.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.1.1.< / b >
安装并试用Istio service mesh
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.1.2" data-path = "../usecases/configuring-request-routing.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/configuring-request-routing.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.1.2.< / b >
配置请求的路由规则
2017-08-21 17:44:43 +08:00
< / a >
2017-11-07 23:57:26 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.1.3" data-path = "../usecases/install-and-expand-istio-mesh.html" >
2017-11-07 23:57:26 +08:00
< a href = "../usecases/install-and-expand-istio-mesh.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.1.3.< / b >
安装和拓展Istio service mesh
2017-11-07 23:57:26 +08:00
< / a >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.1.4" data-path = "../usecases/integrating-vms.html" >
2017-11-07 23:57:26 +08:00
< a href = "../usecases/integrating-vms.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.1.4.< / b >
集成虚拟机
2017-11-07 23:57:26 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.2" data-path = "../usecases/linkerd.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/linkerd.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.2.< / b >
Linkerd
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.3.2.1" data-path = "../usecases/linkerd-user-guide.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/linkerd-user-guide.html" >
2017-11-15 21:18:59 +08:00
< b > 5.3.2.1.< / b >
Linkerd 使用指南
2017-08-21 17:44:43 +08:00
< / a >
< / li >
< / ul >
2017-12-10 21:51:18 +08:00
< / li >
< li class = "chapter " data-level = "5.3.3" data-path = "../usecases/conduit.html" >
< a href = "../usecases/conduit.html" >
< b > 5.3.3.< / b >
Conduit
< / a >
2017-12-11 14:21:24 +08:00
< ul class = "articles" >
< li class = "chapter " data-level = "5.3.3.1" data-path = "../usecases/conduit-overview.html" >
< a href = "../usecases/conduit-overview.html" >
< b > 5.3.3.1.< / b >
Condiut概览
< / a >
2017-12-12 23:30:36 +08:00
< / li >
< li class = "chapter " data-level = "5.3.3.2" data-path = "../usecases/conduit-installation.html" >
< a href = "../usecases/conduit-installation.html" >
< b > 5.3.3.2.< / b >
安装Conduit
< / a >
2017-12-11 14:21:24 +08:00
< / li >
< / ul >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.4" data-path = "../usecases/big-data.html" >
2017-08-21 17:44:43 +08:00
< a href = "../usecases/big-data.html" >
2017-11-15 21:18:59 +08:00
< b > 5.4.< / b >
大数据
2017-08-21 17:44:43 +08:00
< / a >
< ul class = "articles" >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.4.1" data-path = "../usecases/spark-standalone-on-kubernetes.html" >
2017-08-21 17:44:43 +08:00
2017-08-30 14:20:52 +08:00
< a href = "../usecases/spark-standalone-on-kubernetes.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 5.4.1.< / b >
Spark standalone on Kubernetes
2017-08-21 17:44:43 +08:00
< / a >
2017-08-31 14:23:44 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.4.2" data-path = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2017-08-31 14:23:44 +08:00
2017-09-14 15:57:50 +08:00
< a href = "../usecases/running-spark-with-kubernetes-native-scheduler.html" >
2017-08-31 14:23:44 +08:00
2017-11-15 21:18:59 +08:00
< b > 5.4.2.< / b >
运行支持kubernetes原生调度的Spark程序
2017-08-31 14:23:44 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
< / ul >
2017-08-30 16:52:33 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.5" data-path = "../usecases/serverless.html" >
2017-08-30 16:52:33 +08:00
< a href = "../usecases/serverless.html" >
2017-11-15 21:18:59 +08:00
< b > 5.5.< / b >
Serverless架构
2017-08-30 16:52:33 +08:00
< / a >
2017-11-23 11:03:04 +08:00
< ul class = "articles" >
< li class = "chapter " data-level = "5.5.1" data-path = "../usecases/understanding-serverless.html" >
< a href = "../usecases/understanding-serverless.html" >
< b > 5.5.1.< / b >
理解Serverless
< / a >
< / li >
< / ul >
2017-10-27 19:09:01 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "chapter " data-level = "5.6" data-path = "../usecases/edge-computing.html" >
2017-10-27 19:09:01 +08:00
< a href = "../usecases/edge-computing.html" >
2017-11-15 21:18:59 +08:00
< b > 5.6.< / b >
边缘计算
2017-10-27 19:09:01 +08:00
< / a >
2017-08-21 17:44:43 +08:00
< / li >
2017-11-15 21:18:59 +08:00
< li class = "header" > 开发指南< / li >
< li class = "chapter " data-level = "6.1" data-path = "../develop/" >
2017-08-21 17:44:43 +08:00
< a href = "../develop/" >
2017-11-15 21:18:59 +08:00
< b > 6.1.< / b >
开发指南概览
2017-08-21 17:44:43 +08:00
< / a >
2017-11-15 21:18:59 +08:00
< / li >
2017-08-21 17:44:43 +08:00
2017-12-03 13:13:09 +08:00
< li class = "chapter " data-level = "6.2" data-path = "../develop/sigs-and-working-group.html" >
2017-08-21 17:44:43 +08:00
2017-12-03 13:13:09 +08:00
< a href = "../develop/sigs-and-working-group.html" >
2017-08-21 17:44:43 +08:00
2017-11-15 21:18:59 +08:00
< b > 6.2.< / b >
2017-12-03 13:13:09 +08:00
SIG和工作组
< / a >
< / li >
< li class = "chapter " data-level = "6.3" data-path = "../develop/developing-environment.html" >
< a href = "../develop/developing-environment.html" >
< b > 6.3.< / b >
2017-11-15 21:18:59 +08:00
开发环境搭建
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-03 13:13:09 +08:00
< li class = "chapter " data-level = "6.4" data-path = "../develop/testing.html" >
2017-08-21 17:44:43 +08:00
< a href = "../develop/testing.html" >
2017-12-03 13:13:09 +08:00
< b > 6.4.< / b >
2017-11-15 21:18:59 +08:00
单元测试和集成测试
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-03 13:13:09 +08:00
< li class = "chapter " data-level = "6.5" data-path = "../develop/client-go-sample.html" >
2017-08-21 17:44:43 +08:00
< a href = "../develop/client-go-sample.html" >
2017-12-03 13:13:09 +08:00
< b > 6.5.< / b >
2017-11-15 21:18:59 +08:00
client-go示例
2017-08-21 17:44:43 +08:00
< / a >
< / li >
2017-12-03 13:13:09 +08:00
< li class = "chapter " data-level = "6.6" data-path = "../develop/contribute.html" >
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< a href = "../develop/contribute.html" >
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< b > 6.6.< / b >
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社区贡献
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< / a >
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< / li >
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< li class = "chapter " data-level = "6.7" data-path = "../develop/minikube.html" >
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< a href = "../develop/minikube.html" >
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< b > 6.7.< / b >
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Minikube
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< / a >
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< / li >
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< li class = "header" > 附录< / li >
< li class = "chapter " data-level = "7.1" data-path = "../appendix/" >
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< a href = "../appendix/" >
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< b > 7.1.< / b >
附录说明
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< / a >
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< / li >
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< li class = "chapter " data-level = "7.2" data-path = "../appendix/debug-kubernetes-services.html" >
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< a href = "../appendix/debug-kubernetes-services.html" >
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< b > 7.2.< / b >
Kubernetes中的应用故障排查
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< / a >
< / li >
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< li class = "chapter " data-level = "7.3" data-path = "../appendix/material-share.html" >
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< a href = "../appendix/material-share.html" >
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< b > 7.3.< / b >
Kubernetes相关资讯和情报链接
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< / a >
< / li >
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< li class = "chapter " data-level = "7.4" data-path = "../appendix/docker-best-practice.html" >
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< a href = "../appendix/docker-best-practice.html" >
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< b > 7.4.< / b >
Docker最佳实践
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< / a >
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< / li >
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< li class = "chapter " data-level = "7.5" data-path = "../appendix/tricks.html" >
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< a href = "../appendix/tricks.html" >
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< b > 7.5.< / b >
使用技巧
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< / a >
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< / li >
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< li class = "chapter " data-level = "7.6" data-path = "../appendix/issues.html" >
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< a href = "../appendix/issues.html" >
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< b > 7.6.< / b >
问题记录
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< / a >
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< / li >
2017-12-11 18:32:18 +08:00
< li class = "chapter " data-level = "7.7" data-path = "../appendix/kubernetes-changelog.html" >
< a href = "../appendix/kubernetes-changelog.html" >
< b > 7.7.< / b >
kubernetes版本更新日志
< / a >
< ul class = "articles" >
< li class = "chapter " data-level = "7.7.1" data-path = "../appendix/kubernetes-1.7-changelog.html" >
< a href = "../appendix/kubernetes-1.7-changelog.html" >
< b > 7.7.1.< / b >
Kubernetes1.7更新日志
< / a >
2017-12-12 13:52:55 +08:00
< / li >
< li class = "chapter " data-level = "7.7.2" data-path = "../appendix/kubernetes-1.8-changelog.html" >
< a href = "../appendix/kubernetes-1.8-changelog.html" >
< b > 7.7.2.< / b >
Kubernetes1.8更新日志
< / a >
2017-12-16 10:50:25 +08:00
< / li >
< li class = "chapter " data-level = "7.7.3" data-path = "../appendix/kubernetes-1.9-changelog.html" >
< a href = "../appendix/kubernetes-1.9-changelog.html" >
< b > 7.7.3.< / b >
Kubernetes1.9更新日志
< / a >
2017-12-11 18:32:18 +08:00
< / li >
< / ul >
< / li >
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< li class = "divider" > < / li >
< li >
< a href = "https://www.gitbook.com" target = "blank" class = "gitbook-link" >
2017-09-19 22:01:07 +08:00
本书使用 GitBook 发布
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< / a >
< / li >
< / ul >
< / nav >
< / div >
< div class = "book-body" >
< div class = "body-inner" >
< div class = "book-header" role = "navigation" >
<!-- Title -->
< h1 >
< i class = "fa fa-circle-o-notch fa-spin" > < / i >
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< a href = ".." > 配置Pod的liveness和readiness探针< / a >
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< / h1 >
< / div >
< div class = "page-wrapper" tabindex = "-1" role = "main" >
< div class = "page-inner" >
< div class = "search-plus" id = "book-search-results" >
< div class = "search-noresults" >
< section class = "normal markdown-section" >
< h1 id = "配置pod的liveness和readiness探针" > 配 置 Pod的 liveness和 readiness探 针 < / h1 >
< p > 当 你 使 用 kuberentes的 时 候 ， 有 没 有 遇 到 过 Pod在 启 动 后 一 会 就 挂 掉 然 后 又 重 新 启 动 这 样 的 恶 性 循 环 ？ 你 有 没 有 想 过 kubernetes是 如 何 检 测 pod是 否 还 存 活 ？ 虽 然 容 器 已 经 启 动 ， 但 是 kubernetes如 何 知 道 容 器 的 进 程 是 否 准 备 好 对 外 提 供 服 务 了 呢 ？ 让 我 们 通 过 kuberentes官 网 的 这 篇 文 章 < a href = "https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/" target = "_blank" > Configure Liveness and Readiness Probes< / a > ， 来 一 探 究 竟 。 < / p >
< p > 本 文 将 向 展 示 如 何 配 置 容 器 的 存 活 和 可 读 性 探 针 。 < / p >
< p > Kubelet使 用 liveness probe（ 存 活 探 针 ） 来 确 定 何 时 重 启 容 器 。 例 如 ， 当 应 用 程 序 处 于 运 行 状 态 但 无 法 做 进 一 步 操 作 ， liveness探 针 将 捕 获 到 deadlock， 重 启 处 于 该 状 态 下 的 容 器 ， 使 应 用 程 序 在 存 在 bug的 情 况 下 依 然 能 够 继 续 运 行 下 去 （ 谁 的 程 序 还 没 几 个 bug呢 ） 。 < / p >
< p > Kubelet使 用 readiness probe（ 就 绪 探 针 ） 来 确 定 容 器 是 否 已 经 就 绪 可 以 接 受 流 量 。 只 有 当 Pod中 的 容 器 都 处 于 就 绪 状 态 时 kubelet才 会 认 定 该 Pod处 于 就 绪 状 态 。 该 信 号 的 作 用 是 控 制 哪 些 Pod应 该 作 为 service的 后 端 。 如 果 Pod处 于 非 就 绪 状 态 ， 那 么 它 们 将 会 被 从 service的 load balancer中 移 除 。 < / p >
< h2 id = "定义-liveness命令" > 定 义 liveness命 令 < / h2 >
< p > 许 多 长 时 间 运 行 的 应 用 程 序 最 终 会 转 换 到 broken状 态 ， 除 非 重 新 启 动 ， 否 则 无 法 恢 复 。 Kubernetes提 供 了 liveness probe来 检 测 和 补 救 这 种 情 况 。 < / p >
< p > 在 本 次 练 习 将 基 于 < code > gcr.io/google_containers/busybox< / code > 镜 像 创 建 运 行 一 个 容 器 的 Pod。 以 下 是 Pod的 配 置 文 件 < code > exec-liveness.yaml< / code > ： < / p >
< pre > < code class = "lang-Yaml" > < span class = "hljs-attr" > apiVersion:< / span > v1
< span class = "hljs-attr" > kind:< / span > Pod
< span class = "hljs-attr" > metadata:< / span >
< span class = "hljs-attr" > labels:< / span >
< span class = "hljs-attr" > test:< / span > liveness
< span class = "hljs-attr" > name:< / span > liveness-exec
< span class = "hljs-attr" > spec:< / span >
< span class = "hljs-attr" > containers:< / span >
< span class = "hljs-attr" > - name:< / span > liveness
< span class = "hljs-attr" > args:< / span >
< span class = "hljs-bullet" > -< / span > /bin/sh
< span class = "hljs-bullet" > -< / span > -c
< span class = "hljs-bullet" > -< / span > touch /tmp/healthy; sleep < span class = "hljs-number" > 30< / span > ; rm -rf /tmp/healthy; sleep < span class = "hljs-number" > 600< / span >
< span class = "hljs-attr" > image:< / span > gcr.io/google_containers/busybox
< span class = "hljs-attr" > livenessProbe:< / span >
< span class = "hljs-attr" > exec:< / span >
< span class = "hljs-attr" > command:< / span >
< span class = "hljs-bullet" > -< / span > cat
< span class = "hljs-bullet" > -< / span > /tmp/healthy
< span class = "hljs-attr" > initialDelaySeconds:< / span > < span class = "hljs-number" > 5< / span >
< span class = "hljs-attr" > periodSeconds:< / span > < span class = "hljs-number" > 5< / span >
< / code > < / pre >
< p > 该 配 置 文 件 给 Pod配 置 了 一 个 容 器 。 < code > periodSeconds< / code > 规 定 kubelet要 每 隔 5秒 执 行 一 次 liveness probe。 < code > initialDelaySeconds< / code > 告 诉 kubelet在 第 一 次 执 行 probe之 前 要 的 等 待 5秒 钟 。 探 针 检 测 命 令 是 在 容 器 中 执 行 < code > cat /tmp/healthy< / code > 命 令 。 如 果 命 令 执 行 成 功 ， 将 返 回 0， kubelet就 会 认 为 该 容 器 是 活 着 的 并 且 很 健 康 。 如 果 返 回 非 0值 ， kubelet就 会 杀 掉 这 个 容 器 并 重 启 它 。 < / p >
< p > 容 器 启 动 时 ， 执 行 该 命 令 ： < / p >
< pre > < code class = "lang-shell" > /bin/sh -c " touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600"
< / code > < / pre >
< p > 在 容 器 生 命 的 最 初 30秒 内 有 一 个 < code > /tmp/healthy< / code > 文 件 ， 在 这 30秒 内 < code > cat /tmp/healthy< / code > 命 令 会 返 回 一 个 成 功 的 返 回 码 。 30秒 后 ， < code > cat /tmp/healthy< / code > 将 返 回 失 败 的 返 回 码 。 < / p >
< p > 创 建 Pod： < / p >
< pre > < code class = "lang-shell" > kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/exec-liveness.yaml
< / code > < / pre >
< p > 在 30秒 内 ， 查 看 Pod的 event： < / p >
< pre > < code > kubectl describe pod liveness-exec
< / code > < / pre > < p > 结 果 显 示 没 有 失 败 的 liveness probe： < / p >
< pre > < code class = "lang-shell" > FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
24s 24s 1 {default-scheduler } Normal Scheduled Successfully assigned liveness-exec to worker0
23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Pulling pulling image " gcr.io/google_containers/busybox"
23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Pulled Successfully pulled image " gcr.io/google_containers/busybox"
23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Created Created container with docker id 86849c15382e; Security:[seccomp=unconfined]
23s 23s 1 {kubelet worker0} spec.containers{liveness} Normal Started Started container with docker id 86849c15382e
< / code > < / pre >
< p > 启 动 35秒 后 ， 再 次 查 看 pod的 event： < / p >
< pre > < code class = "lang-shell" > kubectl describe pod liveness-exec
< / code > < / pre >
< p > 在 最 下 面 有 一 条 信 息 显 示 liveness probe失 败 ， 容 器 被 删 掉 并 重 新 创 建 。 < / p >
< pre > < code class = "lang-shell" > FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
37s 37s 1 {default-scheduler } Normal Scheduled Successfully assigned liveness-exec to worker0
36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Pulling pulling image " gcr.io/google_containers/busybox"
36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Pulled Successfully pulled image " gcr.io/google_containers/busybox"
36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Created Created container with docker id 86849c15382e; Security:[seccomp=unconfined]
36s 36s 1 {kubelet worker0} spec.containers{liveness} Normal Started Started container with docker id 86849c15382e
2s 2s 1 {kubelet worker0} spec.containers{liveness} Warning Unhealthy Liveness probe failed: cat: can' t open ' /tmp/healthy' : No such file or directory
< / code > < / pre >
< p > 再 等 30秒 ， 确 认 容 器 已 经 重 启 ： < / p >
< pre > < code class = "lang-shell" > kubectl get pod liveness-exec
< / code > < / pre >
< p > 从 输 出 结 果 来 < code > RESTARTS< / code > 值 加 1了 。 < / p >
< pre > < code class = "lang-shell" > NAME READY STATUS RESTARTS AGE
liveness-exec 1/1 Running 1 1m
< / code > < / pre >
< h2 id = "定义一个liveness-http请求" > 定 义 一 个 liveness HTTP请 求 < / h2 >
< p > 我 们 还 可 以 使 用 HTTP GET请 求 作 为 liveness probe。 下 面 是 一 个 基 于 < code > gcr.io/google_containers/liveness< / code > 镜 像 运 行 了 一 个 容 器 的 Pod的 例 子 < code > http-liveness.yaml< / code > ： < / p >
< pre > < code class = "lang-yaml" > < span class = "hljs-attr" > apiVersion:< / span > v1
< span class = "hljs-attr" > kind:< / span > Pod
< span class = "hljs-attr" > metadata:< / span >
< span class = "hljs-attr" > labels:< / span >
< span class = "hljs-attr" > test:< / span > liveness
< span class = "hljs-attr" > name:< / span > liveness-http
< span class = "hljs-attr" > spec:< / span >
< span class = "hljs-attr" > containers:< / span >
< span class = "hljs-attr" > - name:< / span > liveness
< span class = "hljs-attr" > args:< / span >
< span class = "hljs-bullet" > -< / span > /server
< span class = "hljs-attr" > image:< / span > gcr.io/google_containers/liveness
< span class = "hljs-attr" > livenessProbe:< / span >
< span class = "hljs-attr" > httpGet:< / span >
< span class = "hljs-attr" > path:< / span > /healthz
< span class = "hljs-attr" > port:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > httpHeaders:< / span >
< span class = "hljs-attr" > - name:< / span > X-Custom-Header
< span class = "hljs-attr" > value:< / span > Awesome
< span class = "hljs-attr" > initialDelaySeconds:< / span > < span class = "hljs-number" > 3< / span >
< span class = "hljs-attr" > periodSeconds:< / span > < span class = "hljs-number" > 3< / span >
< / code > < / pre >
< p > 该 配 置 文 件 只 定 义 了 一 个 容 器 ， < code > livenessProbe< / code > 指 定 kubelete需 要 每 隔 3秒 执 行 一 次 liveness probe。 < code > initialDelaySeconds< / code > 指 定 kubelet在 该 执 行 第 一 次 探 测 之 前 需 要 等 待 3秒 钟 。 该 探 针 将 向 容 器 中 的 server的 8080端 口 发 送 一 个 HTTP GET请 求 。 如 果 server的 < code > /healthz< / code > 路 径 的 handler返 回 一 个 成 功 的 返 回 码 ， kubelet就 会 认 定 该 容 器 是 活 着 的 并 且 很 健 康 。 如 果 返 回 失 败 的 返 回 码 ， kubelet将 杀 掉 该 容 器 并 重 启 它 。 < / p >
< p > 任 何 大 于 200小 于 400的 返 回 码 都 会 认 定 是 成 功 的 返 回 码 。 其 他 返 回 码 都 会 被 认 为 是 失 败 的 返 回 码 。 < / p >
< p > 查 看 该 server的 源 码 ： < a href = "http://k8s.io/docs/user-guide/liveness/image/server.go" target = "_blank" > server.go< / a > .< / p >
< p > 最 开 始 的 10秒 该 容 器 是 活 着 的 ， < code > /healthz< / code > handler返 回 200的 状 态 码 。 这 之 后 将 返 回 500的 返 回 码 。 < / p >
< pre > < code class = "lang-go" > http.HandleFunc(< span class = "hljs-string" > " /healthz" < / span > , < span class = "hljs-keyword" > func< / span > (w http.ResponseWriter, r *http.Request) {
duration := time.Now().Sub(started)
< span class = "hljs-keyword" > if< / span > duration.Seconds() > < span class = "hljs-number" > 10< / span > {
w.WriteHeader(< span class = "hljs-number" > 500< / span > )
w.Write([]< span class = "hljs-keyword" > byte< / span > (fmt.Sprintf(< span class = "hljs-string" > " error: %v" < / span > , duration.Seconds())))
} < span class = "hljs-keyword" > else< / span > {
w.WriteHeader(< span class = "hljs-number" > 200< / span > )
w.Write([]< span class = "hljs-keyword" > byte< / span > (< span class = "hljs-string" > " ok" < / span > ))
}
})
< / code > < / pre >
< p > 容 器 启 动 3秒 后 ， kubelet开 始 执 行 健 康 检 查 。 第 一 次 健 康 监 测 会 成 功 ， 但 是 10秒 后 ， 健 康 检 查 将 失 败 ， kubelet将 杀 掉 和 重 启 容 器 。 < / p >
< p > 创 建 一 个 Pod来 测 试 一 下 HTTP liveness检 测 ： < / p >
< pre > < code class = "lang-shell" > kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/http-liveness.yaml
< / code > < / pre >
< p > After 10 seconds, view Pod events to verify that liveness probes have failed and
the Container has been restarted:< / p >
< p > 10秒 后 ， 查 看 Pod的 event， 确 认 liveness probe失 败 并 重 启 了 容 器 。 < / p >
< pre > < code class = "lang-shell" > kubectl describe pod liveness-http
< / code > < / pre >
< h2 id = "定义tcp-liveness探针" > 定 义 TCP liveness探 针 < / h2 >
< p > 第 三 种 liveness probe使 用 TCP Socket。 使 用 此 配 置 ， kubelet将 尝 试 在 指 定 端 口 上 打 开 容 器 的 套 接 字 。 如 果 可 以 建 立 连 接 ， 容 器 被 认 为 是 健 康 的 ， 如 果 不 能 就 认 为 是 失 败 的 。 < / p >
< pre > < code class = "lang-yaml" > < span class = "hljs-attr" > apiVersion:< / span > v1
< span class = "hljs-attr" > kind:< / span > Pod
< span class = "hljs-attr" > metadata:< / span >
< span class = "hljs-attr" > name:< / span > goproxy
< span class = "hljs-attr" > labels:< / span >
< span class = "hljs-attr" > app:< / span > goproxy
< span class = "hljs-attr" > spec:< / span >
< span class = "hljs-attr" > containers:< / span >
< span class = "hljs-attr" > - name:< / span > goproxy
< span class = "hljs-attr" > image:< / span > gcr.io/google_containers/goproxy:< span class = "hljs-number" > 0.1< / span >
< span class = "hljs-attr" > ports:< / span >
< span class = "hljs-attr" > - containerPort:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > readinessProbe:< / span >
< span class = "hljs-attr" > tcpSocket:< / span >
< span class = "hljs-attr" > port:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > initialDelaySeconds:< / span > < span class = "hljs-number" > 5< / span >
< span class = "hljs-attr" > periodSeconds:< / span > < span class = "hljs-number" > 10< / span >
< span class = "hljs-attr" > livenessProbe:< / span >
< span class = "hljs-attr" > tcpSocket:< / span >
< span class = "hljs-attr" > port:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > initialDelaySeconds:< / span > < span class = "hljs-number" > 15< / span >
< span class = "hljs-attr" > periodSeconds:< / span > < span class = "hljs-number" > 20< / span >
< / code > < / pre >
< p > 如 您 所 见 ， TCP检 查 的 配 置 与 HTTP检 查 非 常 相 似 。 此 示 例 同 时 使 用 了 readiness和 liveness probe。 容 器 启 动 后 5秒 钟 ， kubelet将 发 送 第 一 个 readiness probe。 这 将 尝 试 连 接 到 端 口 8080上 的 goproxy容 器 。 如 果 探 测 成 功 ， 则 该 pod将 被 标 记 为 就 绪 。 Kubelet将 每 隔 10秒 钟 执 行 一 次 该 检 查 。 < / p >
< p > 除 了 readiness probe之 外 ， 该 配 置 还 包 括 liveness probe。 容 器 启 动 15秒 后 ， kubelet将 运 行 第 一 个 liveness probe。 就 像 readiness probe一 样 ， 这 将 尝 试 连 接 到 goproxy容 器 上 的 8080端 口 。 如 果 liveness probe失 败 ， 容 器 将 重 新 启 动 。 < / p >
< h2 id = "使用命名的端口" > 使 用 命 名 的 端 口 < / h2 >
< p > 可 以 使 用 命 名 的 ContainerPort作 为 HTTP或 TCP liveness检 查 ： < / p >
< pre > < code class = "lang-yaml" > < span class = "hljs-attr" > ports:< / span >
< span class = "hljs-attr" > - name:< / span > liveness-port
< span class = "hljs-attr" > containerPort:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > hostPort:< / span > < span class = "hljs-number" > 8080< / span >
< span class = "hljs-attr" > livenessProbe:< / span >
< span class = "hljs-attr" > httpGet:< / span >
< span class = "hljs-attr" > path:< / span > /healthz
< span class = "hljs-attr" > port:< / span > liveness-port
< / code > < / pre >
< h2 id = "定义readiness探针" > 定 义 readiness探 针 < / h2 >
< p > 有 时 ， 应 用 程 序 暂 时 无 法 对 外 部 流 量 提 供 服 务 。 例 如 ， 应 用 程 序 可 能 需 要 在 启 动 期 间 加 载 大 量 数 据 或 配 置 文 件 。 在 这 种 情 况 下 ， 你 不 想 杀 死 应 用 程 序 ， 但 你 也 不 想 发 送 请 求 。 Kubernetes提 供 了 readiness probe来 检 测 和 减 轻 这 些 情 况 。 Pod中 的 容 器 可 以 报 告 自 己 还 没 有 准 备 ， 不 能 处 理 Kubernetes服 务 发 送 过 来 的 流 量 。 < / p >
< p > Readiness probe的 配 置 跟 liveness probe很 像 。 唯 一 的 不 同 是 使 用 < code > readinessProbe< / code > 而 不 是 < code > livenessProbe< / code > 。 < / p >
< pre > < code class = "lang-yaml" > < span class = "hljs-attr" > readinessProbe:< / span >
< span class = "hljs-attr" > exec:< / span >
< span class = "hljs-attr" > command:< / span >
< span class = "hljs-bullet" > -< / span > cat
< span class = "hljs-bullet" > -< / span > /tmp/healthy
< span class = "hljs-attr" > initialDelaySeconds:< / span > < span class = "hljs-number" > 5< / span >
< span class = "hljs-attr" > periodSeconds:< / span > < span class = "hljs-number" > 5< / span >
< / code > < / pre >
< p > Readiness probe的 HTTP和 TCP的 探 测 器 配 置 跟 liveness probe一 样 。 < / p >
< p > Readiness和 livenss probe可 以 并 行 用 于 同 一 容 器 。 使 用 两 者 可 以 确 保 流 量 无 法 到 达 未 准 备 好 的 容 器 ， 并 且 容 器 在 失 败 时 重 新 启 动 。 < / p >
< h2 id = "配置probe" > 配 置 Probe< / h2 >
< p > < a href = "https://kubernetes.io/docs/api-reference/v1.6/#probe-v1-core" target = "_blank" > Probe< / a > 中 有 很 多 精 确 和 详 细 的 配 置 ， 通 过 它 们 你 能 准 确 的 控 制 liveness和 readiness检 查 ： < / p >
< ul >
< li > < code > initialDelaySeconds< / code > ： 容 器 启 动 后 第 一 次 执 行 探 测 是 需 要 等 待 多 少 秒 。 < / li >
< li > < code > periodSeconds< / code > ： 执 行 探 测 的 频 率 。 默 认 是 10秒 ， 最 小 1秒 。 < / li >
< li > < code > timeoutSeconds< / code > ： 探 测 超 时 时 间 。 默 认 1秒 ， 最 小 1秒 。 < / li >
< li > < code > successThreshold< / code > ： 探 测 失 败 后 ， 最 少 连 续 探 测 成 功 多 少 次 才 被 认 定 为 成 功 。 默 认 是 1。 对 于 liveness必 须 是 1。 最 小 值 是 1。 < / li >
< li > < code > failureThreshold< / code > ： 探 测 成 功 后 ， 最 少 连 续 探 测 失 败 多 少 次 才 被 认 定 为 失 败 。 默 认 是 3。 最 小 值 是 1。 < / li >
< / ul >
< p > < a href = "https://kubernetes.io/docs/api-reference/v1.6/#httpgetaction-v1-core" target = "_blank" > HTTP probe< / a > 中 可 以 给 < code > httpGet< / code > 设 置 其 他 配 置 项 ： < / p >
< ul >
< li > < code > host< / code > ： 连 接 的 主 机 名 ， 默 认 连 接 到 pod的 IP。 你 可 能 想 在 http header中 设 置 " Host" 而 不 是 使 用 IP。 < / li >
< li > < code > scheme< / code > ： 连 接 使 用 的 schema， 默 认 HTTP。 < / li >
< li > < code > path< / code > : 访 问 的 HTTP server的 path。 < / li >
< li > < code > httpHeaders< / code > ： 自 定 义 请 求 的 header。 HTTP运 行 重 复 的 header。 < / li >
< li > < code > port< / code > ： 访 问 的 容 器 的 端 口 名 字 或 者 端 口 号 。 端 口 号 必 须 介 于 1和 65525之 间 。 < / li >
< / ul >
< p > 对 于 HTTP探 测 器 ， kubelet向 指 定 的 路 径 和 端 口 发 送 HTTP请 求 以 执 行 检 查 。 Kubelet将 probe发 送 到 容 器 的 IP地 址 ， 除 非 地 址 被 < code > httpGet< / code > 中 的 可 选 < code > host< / code > 字 段 覆 盖 。 在 大 多 数 情 况 下 ， 你 不 想 设 置 主 机 字 段 。 有 一 种 情 况 下 你 可 以 设 置 它 。 假 设 容 器 在 127.0.0.1上 侦 听 ， 并 且 Pod的 < code > hostNetwork< / code > 字 段 为 true。 然 后 ， 在 < code > httpGet< / code > 下 的 < code > host< / code > 应 该 设 置 为 127.0.0.1。 如 果 你 的 pod依 赖 于 虚 拟 主 机 ， 这 可 能 是 更 常 见 的 情 况 ， 你 不 应 该 是 用 < code > host< / code > ， 而 是 应 该 在 < code > httpHeaders< / code > 中 设 置 < code > Host< / code > 头 。 < / p >
< h2 id = "参考" > 参 考 < / h2 >
< ul >
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< li > 关 于 < a href = "https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes" target = "_blank" > Container Probes< / a > 的 更 多 信 息 < / li >
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< / ul >
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