Add Kubernetes job

Change-Id: I2c75c81521ed8a53627119b231f526508154e34d

.zuul.yaml

@@ -15,10 +15,47 @@
       devstack_plugins:
         devstack-plugin-container: https://opendev.org/openstack/devstack-plugin-container
 
+- job:
+    name: devstack-plugin-container-k8s
+    parent: devstack-minimal
+    nodeset: openstack-two-node-bionic
+    pre-run: playbooks/devstack-plugin-container-k8s/pre.yaml
+    run: playbooks/devstack-plugin-container-k8s/run.yaml
+    post-run: playbooks/devstack-plugin-container-k8s/post.yaml
+    timeout: 7200
+    required-projects:
+      - openstack/devstack
+      - openstack/devstack-gate
+      - openstack/devstack-plugin-container
+    vars:
+      devstack_services:
+        # Ignore any default set by devstack. Emit a "disable_all_services".
+        base: false
+        etcd3: true
+        container: true
+        k8s-master: true
+      devstack_localrc:
+        K8S_TOKEN: "9agf12.zsu5uh2m4pzt3qba"
+        USE_PYTHON3: true
+      devstack_plugins:
+        devstack-plugin-container: https://opendev.org/openstack/devstack-plugin-container
+    group-vars:
+      subnode:
+        devstack_services:
+          # Ignore any default set by devstack. Emit a "disable_all_services".
+          base: false
+          container: true
+          k8s-node: true
+        devstack_localrc:
+          K8S_TOKEN: "9agf12.zsu5uh2m4pzt3qba"
+          USE_PYTHON3: true
+
 - project:
     check:
       jobs:
         - devstack-plugin-container-dsvm
+        - devstack-plugin-container-k8s:
+            voting: false
     gate:
       jobs:
         - devstack-plugin-container-dsvm

devstack/settings

@@ -5,6 +5,7 @@ CONTAINER_ENGINE=${CONTAINER_ENGINE:-docker}
 ENABLE_CLEAR_CONTAINER=${ENABLE_CLEAR_CONTAINER:-false}
 ENABLE_LIVE_RESTORE=${ENABLE_LIVE_RESTORE:-false}
 ENABLE_IPV6=${ENABLE_IPV6:-false}
+K8S_NETWORK_ADDON=${K8S_NETWORK_ADDON:-flannel}
 
 # Enable container services
 enable_service container

playbooks/devstack-plugin-container-k8s/post.yaml

@@ -0,0 +1,4 @@
+- hosts: all
+  roles:
+    - fetch_docker_log
+    - fetch_kubelet_log

playbooks/devstack-plugin-container-k8s/pre.yaml

@@ -0,0 +1,3 @@
+- hosts: all
+  roles:
+    - orchestrate-devstack

playbooks/devstack-plugin-container-k8s/run.yaml

@@ -0,0 +1,29 @@
+- hosts: controller
+  name: Verify that k8s is installed correctly by running a pod
+  tasks:
+    - shell:
+        cmd: |
+          set -e
+          set -x
+
+          kubectl get nodes
+          kubectl get pods --namespace kube-system
+
+          tmpfile=$(mktemp)
+          cat <<EOT > $tmpfile
+          apiVersion: v1
+          kind: Pod
+          metadata:
+            name: myapp-pod
+            labels:
+              app: myapp
+          spec:
+            containers:
+            - name: myapp-container
+              image: busybox
+              command: ['sh', '-c', 'echo Hello Kubernetes! && sleep 3600']
+          EOT
+          kubectl create -f $tmpfile
+          kubectl wait --for=condition=Ready pod myapp-pod
+      become: true
+      become_user: stack

roles/fetch_kubelet_log/README.rst

@@ -0,0 +1 @@
+Collect kubelet log from test run

roles/fetch_kubelet_log/tasks/main.yaml

@@ -0,0 +1,22 @@
+- name: Ensure log path exists
+  become: yes
+  file:
+    path: "{{ ansible_user_dir }}/logs"
+    state: directory
+    owner: "{{ ansible_user }}"
+    group: "{{ ansible_user }}"
+    mode: 0775
+
+- name: Store kubelet log in {{ ansible_user_dir }}/logs
+  become: yes
+  shell:
+    cmd: |
+      sudo journalctl -o short-precise --unit kubelet | sudo tee {{ ansible_user_dir }}/logs/kubelet.log > /dev/null
+
+- name: Set kubelet.log file permissions
+  become: yes
+  file:
+    path: '{{ ansible_user_dir }}/logs/kubelet.log'
+    owner: '{{ ansible_user }}'
+    group: '{{ ansible_user }}'
+    mode: 0644