增加网络插件kube-ovn支持

2019-05-22 11:17:42 +08:00 · 2019-05-22 11:17:42 +08:00 · 828de9d3b5
parent b4e373b01e
commit 828de9d3b5
7 changed files with 543 additions and 1 deletions
--- a/06.network.yml
+++ b/06.network.yml
@ -7,3 +7,4 @@
  - { role: cilium, when: "CLUSTER_NETWORK == 'cilium'" }
  - { role: flannel, when: "CLUSTER_NETWORK == 'flannel'" }
  - { role: kube-router, when: "CLUSTER_NETWORK == 'kube-router'" }
+  - { role: kube-ovn, when: "CLUSTER_NETWORK == 'kube-ovn'" }
--- a/90.setup.yml
+++ b/90.setup.yml
@ -68,6 +68,7 @@
  - { role: cilium, when: "CLUSTER_NETWORK == 'cilium'" }
  - { role: flannel, when: "CLUSTER_NETWORK == 'flannel'" }
  - { role: kube-router, when: "CLUSTER_NETWORK == 'kube-router'" }
+  - { role: kube-ovn, when: "CLUSTER_NETWORK == 'kube-ovn'" }

 # to install cluster-addons
 - hosts:
--- a/99.clean.yml
+++ b/99.clean.yml
@ -133,6 +133,10 @@
    - "/var/lib/cni/"
    - "/var/lib/kube-router/"
    - "/opt/kube/kube-system/"
+    - "/var/run/openvswitch/"
+    - "/etc/origin/openvswitch/"
+    - "/etc/openvswitch/"
+    - "/var/log/openvswitch/"

  - name: cleanup iptables
    shell: "iptables -F && iptables -X \
@ -149,7 +153,9 @@
        ip link del dummy0; \
        ip link del kube-ipvs0; \
        ip link del cilium_net; \
-        ip link del cilium_vxlan"
+        ip link del cilium_vxlan; \
+        ip link del ovn0; \
+        ip link del ovs-system"
    ignore_errors: true

  - name: cleanup networks2
--- a/roles/kube-ovn/defaults/main.yml
+++ b/roles/kube-ovn/defaults/main.yml
@ -0,0 +1,5 @@
+# 选择 OVN DB and OVN Control Plane 节点，默认为第一个master节点
+OVN_DB_NODE: "{{ groups['kube-master'][0] }}"
+
+# 离线镜像tar包
+kube_ovn_offline: "kube_ovn_0.4.0.tar"
--- a/roles/kube-ovn/tasks/main.yml
+++ b/roles/kube-ovn/tasks/main.yml
@ -0,0 +1,78 @@
+- block:
+    - name: 在deploy 节点创建相关目录
+      file: name=/opt/kube/kube-ovn state=directory
+
+    - name: 配置 kube-ovn.yaml 文件
+      template: src=kube-ovn.yaml.j2 dest=/opt/kube/kube-ovn/kube-ovn.yaml
+
+    - name: 配置 ovn.yaml 文件
+      template: src=ovn.yaml.j2 dest=/opt/kube/kube-ovn/ovn.yaml
+
+  delegate_to: "{{ groups.deploy[0] }}"
+  run_once: true
+    
+- name: 创建相关目录
+  file: name={{ item }} state=directory
+  with_items:
+  - /etc/cni/net.d
+  - /opt/kube/images
+
+# 【可选】推送离线镜像，可以忽略执行错误
+- block:
+    - name: 检查是否已下载离线kube_ovn镜像
+      command: "ls {{ base_dir }}/down"
+      register: download_info
+      connection: local
+      run_once: true
+    
+    - name: 尝试推送离线docker 镜像（若执行失败，可忽略）
+      copy: src={{ base_dir }}/down/{{ item }} dest=/opt/kube/images/{{ item }}
+      when: 'item in download_info.stdout'
+      with_items:
+      - "pause_3.1.tar"
+      - "{{ kube_ovn_offline }}"
+      ignore_errors: true
+
+    - name: 获取kube_ovn离线镜像推送情况
+      command: "ls /opt/kube/images"
+      register: image_info
+
+    # 如果目录下有离线镜像，就把它导入到node节点上
+    - name: 导入 kube_ovn的离线镜像（若执行失败，可忽略）
+      shell: "{{ bin_dir }}/docker load -i /opt/kube/images/{{ item }}"
+      with_items:
+      - "pause_3.1.tar"
+      - "{{ kube_ovn_offline }}"
+      ignore_errors: true
+      when: "item in image_info.stdout and CONTAINER_RUNTIME == 'docker'"
+
+    - name: 导入 kube_ovn的离线镜像（若执行失败，可忽略）
+      shell: "{{ bin_dir }}/ctr -n=k8s.io images import /opt/kube/images/{{ item }}"
+      with_items:
+      - "pause_3.1.tar"
+      - "{{ kube_ovn_offline }}"
+      ignore_errors: true
+      when: "item in image_info.stdout and CONTAINER_RUNTIME == 'containerd'"
+
+# 只需单节点执行一次
+- name: 运行 kube-ovn网络
+  shell: "{{ bin_dir }}/kubectl label node {{ OVN_DB_NODE }} kube-ovn/role=master --overwrite && \
+	{{ bin_dir }}/kubectl apply -f /opt/kube/kube-ovn/ovn.yaml && sleep 5 && \
+	{{ bin_dir }}/kubectl apply -f /opt/kube/kube-ovn/kube-ovn.yaml"
+  delegate_to: "{{ groups.deploy[0] }}"
+  run_once: true
+
+# 删除原有cni配置
+- name: 删除默认cni配置
+  file: path=/etc/cni/net.d/10-default.conf state=absent
+
+# 等待网络插件部署成功，视下载镜像速度而定
+- name: 轮询等待kube-ovn 运行，视下载镜像速度而定
+  shell: "{{ bin_dir }}/kubectl get pod -n kube-ovn -o wide|grep 'kube-ovn-cni'|grep ' {{ inventory_hostname }} '|awk '{print $3}'"
+  register: pod_status
+  until: pod_status.stdout == "Running"
+  delegate_to: "{{ groups.deploy[0] }}"
+  retries: 15
+  delay: 8
+  ignore_errors: true
+
--- a/roles/kube-ovn/templates/kube-ovn.yaml.j2
+++ b/roles/kube-ovn/templates/kube-ovn.yaml.j2
@ -0,0 +1,128 @@
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: kube-ovn-controller
+  namespace: kube-ovn
+  annotations:
+    kubernetes.io/description: |
+      kube-ovn controller
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: kube-ovn-controller
+  strategy:
+    rollingUpdate:
+      maxSurge: 0%
+      maxUnavailable: 100%
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app: kube-ovn-controller
+        component: network
+        type: infra
+    spec:
+      tolerations:
+      - operator: Exists
+        effect: NoSchedule
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchLabels:
+                  app: kube-ovn-controller
+              topologyKey: kubernetes.io/hostname
+      serviceAccountName: ovn
+      hostNetwork: true
+      containers:
+        - name: kube-ovn-controller
+          image: "index.alauda.cn/alaudak8s/kube-ovn-controller:v0.4.0"
+          imagePullPolicy: IfNotPresent
+          command:
+          - /kube-ovn/start-controller.sh
+          args:
+          - --default-cidr=10.16.0.0/16
+          - --node-switch-cidr=100.64.0.0/16
+          env:
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: KUBE_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+      nodeSelector:
+        beta.kubernetes.io/os: "linux"
+
+---
+kind: DaemonSet
+apiVersion: apps/v1
+metadata:
+  name: kube-ovn-cni
+  namespace: kube-ovn
+  annotations:
+    kubernetes.io/description: |
+      This daemon set launches the kube-ovn cni daemon.
+spec:
+  selector:
+    matchLabels:
+      app: kube-ovn-cni
+  updateStrategy:
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app: kube-ovn-cni
+        component: network
+        type: infra
+    spec:
+      tolerations:
+      - operator: Exists
+        effect: NoSchedule
+      serviceAccountName: ovn
+      hostNetwork: true
+      hostPID: true
+      initContainers:
+      - name: install-cni
+        image: "index.alauda.cn/alaudak8s/kube-ovn-cni:v0.4.0"
+        imagePullPolicy: IfNotPresent
+        command: ["/kube-ovn/install-cni.sh"]
+        volumeMounts:
+          - mountPath: /etc/cni/net.d
+            name: cni-conf
+          - mountPath: /opt/cni/bin
+            name: cni-bin
+      containers:
+      - name: cni-server
+        image: "index.alauda.cn/alaudak8s/kube-ovn-cni:v0.4.0"
+        imagePullPolicy: IfNotPresent
+        securityContext:
+          runAsUser: 0
+          privileged: true
+        env:
+          - name: POD_IP
+            valueFrom:
+              fieldRef:
+                fieldPath: status.podIP
+          - name: KUBE_NODE_NAME
+            valueFrom:
+              fieldRef:
+                fieldPath: spec.nodeName
+        volumeMounts:
+          - mountPath: /run/openvswitch
+            name: host-run-ovs
+      nodeSelector:
+        beta.kubernetes.io/os: "linux"
+      volumes:
+        - name: host-run-ovs
+          hostPath:
+            path: /run/openvswitch
+        - name: cni-conf
+          hostPath:
+            path: /etc/cni/net.d
+        - name: cni-bin
+          hostPath:
+            path: {{ bin_dir }}
--- a/roles/kube-ovn/templates/ovn.yaml.j2
+++ b/roles/kube-ovn/templates/ovn.yaml.j2
@ -0,0 +1,323 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: kube-ovn
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ovn-config
+  namespace: kube-ovn
+
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: ovn
+  namespace: kube-ovn
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations:
+    rbac.authorization.k8s.io/system-only: "true"
+  name: system:ovn-reader
+rules:
+  - apiGroups:
+      - ""
+      - extensions
+    resources:
+      - pods
+      - namespaces
+      - networkpolicies
+      - nodes
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - networking.k8s.io
+    resources:
+      - networkpolicies
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - events
+    verbs:
+      - create
+      - patch
+      - update
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: ovn-cluster-reader
+roleRef:
+  name: cluster-reader
+  kind: ClusterRole
+  apiGroup: rbac.authorization.k8s.io
+subjects:
+  - kind: ServiceAccount
+    name: ovn
+    namespace: kube-ovn
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: ovn-reader
+roleRef:
+  name: system:ovn-reader
+  kind: ClusterRole
+  apiGroup: rbac.authorization.k8s.io
+subjects:
+  - kind: ServiceAccount
+    name: ovn
+    namespace: kube-ovn
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: cluster-admin-0
+roleRef:
+  name: cluster-admin
+  kind: ClusterRole
+  apiGroup: rbac.authorization.k8s.io
+subjects:
+  - kind: ServiceAccount
+    name: ovn
+    namespace: kube-ovn
+
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: ovn-nb
+  namespace: kube-ovn
+spec:
+  ports:
+    - name: ovn-nb
+      protocol: TCP
+      port: 6641
+      targetPort: 6641
+  type: ClusterIP
+  selector:
+    app: ovn-central
+  sessionAffinity: None
+
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: ovn-sb
+  namespace: kube-ovn
+spec:
+  ports:
+    - name: ovn-sb
+      protocol: TCP
+      port: 6642
+      targetPort: 6642
+  type: ClusterIP
+  selector:
+    app: ovn-central
+  sessionAffinity: None
+
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: ovn-central
+  namespace: kube-ovn
+  annotations:
+    kubernetes.io/description: |
+      OVN components: northd, nb and sb.
+spec:
+  replicas: 1
+  strategy:
+    rollingUpdate:
+      maxSurge: 0%
+      maxUnavailable: 100%
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: ovn-central
+  template:
+    metadata:
+      labels:
+        app: ovn-central
+        component: network
+        type: infra
+    spec:
+      tolerations:
+      - operator: Exists
+        effect: NoSchedule
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchLabels:
+                  app: ovn-central
+              topologyKey: kubernetes.io/hostname
+      serviceAccountName: ovn
+      hostNetwork: true
+      containers:
+        - name: ovn-central
+          image: "index.alauda.cn/alaudak8s/kube-ovn-db:v0.4.0"
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+          resources:
+            requests:
+              cpu: 200m
+              memory: 300Mi
+            limits:
+              cpu: 400m
+              memory: 800Mi
+          volumeMounts:
+            - mountPath: /run/openvswitch
+              name: host-run-ovs
+            - mountPath: /var/run/openvswitch
+              name: host-run-ovs
+            - mountPath: /sys
+              name: host-sys
+              readOnly: true
+            - mountPath: /etc/openvswitch
+              name: host-config-openvswitch
+            - mountPath: /var/log/openvswitch
+              name: host-log
+          readinessProbe:
+            exec:
+              command:
+                - sh
+                - /root/ovn-is-leader.sh
+            periodSeconds: 3
+          livenessProbe:
+            exec:
+              command:
+              - sh
+              - /root/ovn-healthcheck.sh
+            initialDelaySeconds: 30
+            periodSeconds: 7
+            failureThreshold: 5
+      nodeSelector:
+        beta.kubernetes.io/os: "linux"
+        kube-ovn/role: "master"
+      volumes:
+        - name: host-run-ovs
+          hostPath:
+            path: /run/openvswitch
+        - name: host-sys
+          hostPath:
+            path: /sys
+        - name: host-config-openvswitch
+          hostPath:
+            path: /etc/origin/openvswitch
+        - name: host-log
+          hostPath:
+            path: /var/log/openvswitch
+
+---
+kind: DaemonSet
+apiVersion: apps/v1
+metadata:
+  name: ovs-ovn
+  namespace: kube-ovn
+  annotations:
+    kubernetes.io/description: |
+      This daemon set launches the openvswitch daemon.
+spec:
+  selector:
+    matchLabels:
+      app: ovs
+  updateStrategy:
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        app: ovs
+        component: network
+        type: infra
+    spec:
+      tolerations:
+      - operator: Exists
+        effect: NoSchedule
+      serviceAccountName: ovn
+      hostNetwork: true
+      hostPID: true
+      containers:
+        - name: openvswitch
+          image: "index.alauda.cn/alaudak8s/kube-ovn-node:v0.4.0"
+          imagePullPolicy: IfNotPresent
+          securityContext:
+            runAsUser: 0
+            privileged: true
+          env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
+          volumeMounts:
+            - mountPath: /lib/modules
+              name: host-modules
+              readOnly: true
+            - mountPath: /run/openvswitch
+              name: host-run-ovs
+            - mountPath: /var/run/openvswitch
+              name: host-run-ovs
+            - mountPath: /sys
+              name: host-sys
+              readOnly: true
+            - mountPath: /etc/openvswitch
+              name: host-config-openvswitch
+            - mountPath: /var/log/openvswitch
+              name: host-log
+          readinessProbe:
+            exec:
+              command:
+              - sh
+              - /root/ovs-healthcheck.sh
+            periodSeconds: 5
+          livenessProbe:
+            exec:
+              command:
+              - sh
+              - /root/ovs-healthcheck.sh
+            initialDelaySeconds: 10
+            periodSeconds: 5
+            failureThreshold: 5
+          resources:
+            requests:
+              cpu: 100m
+              memory: 300Mi
+            limits:
+              cpu: 200m
+              memory: 400Mi
+      nodeSelector:
+        beta.kubernetes.io/os: "linux"
+      volumes:
+        - name: host-modules
+          hostPath:
+            path: /lib/modules
+        - name: host-run-ovs
+          hostPath:
+            path: /run/openvswitch
+        - name: host-sys
+          hostPath:
+            path: /sys
+        - name: host-config-openvswitch
+          hostPath:
+            path: /etc/origin/openvswitch
+        - name: host-log
+          hostPath:
+            path: /var/log/openvswitch