增加weavescope应用拓扑状态图

2017-07-12 11:28:30 +08:00 · 2017-07-12 11:28:30 +08:00 · 756b8b4d19
parent 1a2b73a4de
commit 756b8b4d19
4 changed files with 245 additions and 0 deletions
--- a/images/weave-scope-service-topology.jpg
+++ b/images/weave-scope-service-topology.jpg
--- a/manifests/weave/kube-system
+++ b/manifests/weave/kube-system
@ -0,0 +1 @@
+
--- a/manifests/weave/scope.yaml
+++ b/manifests/weave/scope.yaml
@ -0,0 +1,199 @@
+apiVersion: v1
+kind: List
+items:
+  - apiVersion: v1
+    kind: ServiceAccount
+    metadata:
+      name: weave-scope
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=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",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope
+  - apiVersion: rbac.authorization.k8s.io/v1beta1
+    kind: ClusterRole
+    metadata:
+      name: weave-scope
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=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",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope
+    rules:
+      - apiGroups:
+          - '*'
+        resources:
+          - '*'
+        verbs:
+          - '*'
+      - nonResourceURLs:
+          - '*'
+        verbs:
+          - '*'
+  - apiVersion: rbac.authorization.k8s.io/v1beta1
+    kind: ClusterRoleBinding
+    metadata:
+      name: weave-scope
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=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",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope
+    roleRef:
+      kind: ClusterRole
+      name: weave-scope
+      apiGroup: rbac.authorization.k8s.io
+    subjects:
+      - kind: ServiceAccount
+        name: weave-scope
+        namespace: kube-system
+  - apiVersion: apps/v1beta1
+    kind: Deployment
+    metadata:
+      name: weave-scope-app
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=Q2xpZW50IFZlcnNpb246IHZlcnNpb24uSW5mb3tNYWpvcjoiMSIsIE1pbm9yOiI2IiwgR2l0VmVyc2lvbjoidjEuNi4wIiwgR2l0Q29tbWl0OiJmZmY1MTU2MDkyYjU2ZTZiZDYwZmZmNzVhYWQ0ZGM5ZGU2YjZlZjM3IiwgR2l0VHJlZVN0YXRlOiJjbGVhbiIsIEJ1aWxkRGF0ZToiMjAxNy0wMy0yOFQxNjozNjozM1oiLCBHb1ZlcnNpb246ImdvMS43LjUiLCBDb21waWxlcjoiZ2MiLCBQbGF0Zm9ybToibGludXgvYW1kNjQifQpTZXJ2ZXIgVmVyc2lvbjogdmVyc2lvbi5JbmZve01ham9yOiIxIiwgTWlub3I6IjYiLCBHaXRWZXJzaW9uOiJ2MS42LjAiLCBHaXRDb21taXQ6ImZmZjUxNTYwOTJiNTZlNmJkNjBmZmY3NWFhZDRkYzlkZTZiNmVmMzciLCBHaXRUcmVlU3RhdGU6ImNsZWFuIiwgQnVpbGREYXRlOiIyMDE3LTAzLTI4VDE2OjI0OjMwWiIsIEdvVmVyc2lvbjoiZ28xLjcuNSIsIENvbXBpbGVyOiJnYyIsIFBsYXRmb3JtOiJsaW51eC9hbWQ2NCJ9Cg==",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope-app
+        app: weave-scope
+        weave-cloud-component: scope
+        weave-scope-component: app
+    spec:
+      replicas: 1
+      template:
+        metadata:
+          labels:
+            name: weave-scope-app
+            app: weave-scope
+            weave-cloud-component: scope
+            weave-scope-component: app
+        spec:
+          containers:
+            - name: app
+              args:
+                - '--no-probe'
+              image: 'weaveworks/scope:1.5.1'
+              imagePullPolicy: IfNotPresent
+              ports:
+                - containerPort: 4040
+                  protocol: TCP
+  - apiVersion: v1
+    kind: Service
+    metadata:
+      name: weave-scope-app
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=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",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope-app
+        app: weave-scope
+        weave-cloud-component: scope
+        weave-scope-component: app
+    spec:
+      ports:
+        - name: app
+          port: 80
+          protocol: TCP
+          targetPort: 4040
+      selector:
+        name: weave-scope-app
+        app: weave-scope
+        weave-cloud-component: scope
+        weave-scope-component: app
+  - apiVersion: extensions/v1beta1
+    kind: DaemonSet
+    metadata:
+      name: weave-scope-agent
+      annotations:
+        cloud.weave.works/launcher-info: |-
+          {
+            "server-version": "master-38521be",
+            "original-request": {
+              "url": "/k8s/v1.6/scope.yaml?k8s-version=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",
+              "date": "Wed Jul 12 2017 02:25:45 GMT+0000 (UTC)"
+            },
+            "email-address": "support@weave.works"
+          }
+      labels:
+        name: weave-scope-agent
+        app: weave-scope
+        weave-cloud-component: scope
+        weave-scope-component: agent
+    spec:
+      template:
+        metadata:
+          labels:
+            name: weave-scope-agent
+            app: weave-scope
+            weave-cloud-component: scope
+            weave-scope-component: agent
+        spec:
+          containers:
+            - name: agent
+              args:
+                - '--no-app'
+                - '--probe.docker.bridge=docker0'
+                - '--probe.docker=true'
+                - '--probe.kubernetes=true'
+                - >-
+                  $(WEAVE_SCOPE_APP_SERVICE_HOST):$(WEAVE_SCOPE_APP_SERVICE_PORT)
+              image: 'weaveworks/scope:1.5.1'
+              imagePullPolicy: IfNotPresent
+              securityContext:
+                privileged: true
+              volumeMounts:
+                - name: docker-socket
+                  mountPath: /var/run/docker.sock
+                - name: scope-plugins
+                  mountPath: /var/run/scope/plugins
+          hostNetwork: true
+          hostPID: true
+          serviceAccountName: weave-scope
+          tolerations:
+            - effect: NoSchedule
+              operator: Exists
+          volumes:
+            - name: docker-socket
+              hostPath:
+                path: /var/run/docker.sock
+            - name: scope-plugins
+              hostPath:
+                path: /var/run/scope/plugins
+      updateStrategy:
+        type: RollingUpdate
--- a/practice/monitor.md
+++ b/practice/monitor.md
@ -188,6 +188,51 @@ Kubernetes中应用的监控架构如图：
 - 直接访问应用的Pod的IP和端口获取应用监控数据
 - metrics发送到[OWL](https://github.com/talkingdata/owl)中存储和展示

+## 应用拓扑状态图
+
+对于复杂的应用编排和依赖关系，我们希望能够有清晰的图标一览应用状态和拓扑关系，因此我们用到了Weaveworks开源的[scope](https://github.com/weaveworks/scope)。
+
+**安装scope**
+
+我们在kubernetes集群上使用standalone方式安装，详情参考[Installing Weave Scope](https://www.weave.works/docs/scope/latest/installing/#k8s)。
+
+使用[scope.yaml](../manifests/weave/scope.yaml)文件安装scope，该服务安装在`kube-system` namespace下。
+
+```Bash
+$ kubectl apply -f scope.yaml
+```
+
+创建一个新的Ingress：`kube-system.yaml`，配置如下：
+
+```yaml
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: traefik-ingress
+  namespace: kube-system
+spec:
+  rules:
+    - host: scope.weave.io
+      http:
+        paths:
+        - path: /
+          backend:
+            serviceName: weave-scope-app
+            servicePort: 80
+```
+
+执行`kubectl apply -f kube-system.yaml`后在你的主机上的`/etc/hosts`文件中添加一条记录：
+
+```
+172.20.0.119 scope.weave.io
+```
+
+在浏览器中访问`scope.weave.io`就可以访问到scope了，详见[边缘节点配置](edge-node-configuration.md)。
+
+![应用拓扑图](../images/weave-scope-service-topology.jpg)
+
+如上图所示，scope可以监控kubernetes集群中的一系列资源的状态、资源使用情况、应用拓扑、scale、还可以直接通过浏览器进入容器内部调试等。
+
 ## 参考

 [Monitoring in the Kubernetes Era](https://www.datadoghq.com/blog/monitoring-kubernetes-era/)