ansible/test/integration/targets/k8s/tasks/waiter.yml

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- name: ensure that there are actually some nodes
k8s_info:
kind: Node
register: nodes
- block:
- set_fact:
wait_namespace: wait
- name: ensure namespace exists
k8s:
definition:
apiVersion: v1
kind: Namespace
metadata:
name: "{{ wait_namespace }}"
- name: add a simple pod
k8s:
definition:
apiVersion: v1
kind: Pod
metadata:
name: "{{ k8s_pod_name }}"
namespace: "{{ wait_namespace }}"
spec: "{{ k8s_pod_spec }}"
wait: yes
vars:
k8s_pod_name: wait-pod
k8s_pod_image: alpine:3.8
k8s_pod_command:
- sleep
- "10000"
register: wait_pod
ignore_errors: yes
- name: assert that pod creation succeeded
assert:
that:
- wait_pod is successful
- name: add a daemonset
k8s:
definition:
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: wait-daemonset
namespace: "{{ wait_namespace }}"
spec:
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
template: "{{ k8s_pod_template }}"
wait: yes
wait_timeout: 180
vars:
k8s_pod_name: wait-ds
k8s_pod_image: gcr.io/kuar-demo/kuard-amd64:1
register: ds
- name: check that daemonset wait worked
assert:
that:
- ds.result.status.currentNumberScheduled == ds.result.status.desiredNumberScheduled
- name: update a daemonset in check_mode
k8s:
definition:
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: wait-daemonset
namespace: "{{ wait_namespace }}"
spec:
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
updateStrategy:
type: RollingUpdate
template: "{{ k8s_pod_template }}"
wait: yes
wait_timeout: 180
vars:
k8s_pod_name: wait-ds
k8s_pod_image: gcr.io/kuar-demo/kuard-amd64:2
register: update_ds_check_mode
- name: check that check_mode returned changed
assert:
that:
- update_ds_check_mode is changed
- name: update a daemonset
k8s:
definition:
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: wait-daemonset
namespace: "{{ wait_namespace }}"
spec:
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
updateStrategy:
type: RollingUpdate
template: "{{ k8s_pod_template }}"
wait: yes
wait_timeout: 180
vars:
k8s_pod_name: wait-ds
k8s_pod_image: gcr.io/kuar-demo/kuard-amd64:3
register: ds
- name: get updated pods
k8s_info:
api_version: v1
kind: Pod
namespace: "{{ wait_namespace }}"
label_selectors:
- app=wait-ds
register: updated_ds_pods
- name: check that daemonset wait worked
assert:
that:
- ds.result.status.currentNumberScheduled == ds.result.status.desiredNumberScheduled
- updated_ds_pods.resources[0].spec.containers[0].image.endswith(":3")
- name: add a crashing pod
k8s:
definition:
apiVersion: v1
kind: Pod
metadata:
name: "{{ k8s_pod_name }}"
namespace: "{{ wait_namespace }}"
spec: "{{ k8s_pod_spec }}"
wait: yes
wait_timeout: 30
vars:
k8s_pod_name: wait-crash-pod
k8s_pod_image: alpine:3.8
k8s_pod_command:
- /bin/false
register: crash_pod
ignore_errors: yes
- name: check that task failed
assert:
that:
- crash_pod is failed
- name: use a non-existent image
k8s:
definition:
apiVersion: v1
kind: Pod
metadata:
name: "{{ k8s_pod_name }}"
namespace: "{{ wait_namespace }}"
spec: "{{ k8s_pod_spec }}"
wait: yes
wait_timeout: 30
vars:
k8s_pod_name: wait-no-image-pod
k8s_pod_image: i_made_this_up:and_this_too
register: no_image_pod
ignore_errors: yes
- name: check that task failed
assert:
that:
- no_image_pod is failed
- name: add a deployment
k8s:
definition:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: wait-deploy
namespace: "{{ wait_namespace }}"
spec:
replicas: 3
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
template: "{{ k8s_pod_template }}"
wait: yes
vars:
k8s_pod_name: wait-deploy
k8s_pod_image: gcr.io/kuar-demo/kuard-amd64:1
k8s_pod_ports:
- containerPort: 8080
name: http
protocol: TCP
register: deploy
- name: check that deployment wait worked
assert:
that:
- deploy.result.status.availableReplicas == deploy.result.status.replicas
- name: update a deployment
k8s:
definition:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: wait-deploy
namespace: "{{ wait_namespace }}"
spec:
replicas: 3
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
template: "{{ k8s_pod_template }}"
wait: yes
vars:
k8s_pod_name: wait-deploy
k8s_pod_image: gcr.io/kuar-demo/kuard-amd64:2
k8s_pod_ports:
- containerPort: 8080
name: http
protocol: TCP
register: update_deploy
- name: get updated pods
k8s_info:
api_version: v1
kind: Pod
namespace: "{{ wait_namespace }}"
label_selectors:
- app=wait-deploy
register: updated_deploy_pods
- name: check that deployment wait worked
assert:
that:
- deploy.result.status.availableReplicas == deploy.result.status.replicas
- updated_deploy_pods.resources[0].spec.containers[0].image.endswith(":2")
- name: pause a deployment
k8s:
definition:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: wait-deploy
namespace: "{{ wait_namespace }}"
spec:
paused: True
wait: yes
wait_condition:
type: Progressing
status: Unknown
reason: DeploymentPaused
register: pause_deploy
- name: check that paused deployment wait worked
assert:
that:
- condition.reason == "DeploymentPaused"
- condition.status == "Unknown"
vars:
condition: '{{ pause_deploy.result.status.conditions | json_query("[?type==`Progressing`]") | first }}'
- name: add a service based on the deployment
k8s:
definition:
apiVersion: v1
kind: Service
metadata:
name: wait-svc
namespace: "{{ wait_namespace }}"
spec:
selector:
app: "{{ k8s_pod_name }}"
ports:
- port: 8080
targetPort: 8080
protocol: TCP
wait: yes
vars:
k8s_pod_name: wait-deploy
register: service
- name: assert that waiting for service works
assert:
that:
- service is successful
- name: add a crashing deployment
k8s:
definition:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: wait-crash-deploy
namespace: "{{ wait_namespace }}"
spec:
replicas: 3
selector:
matchLabels:
app: "{{ k8s_pod_name }}"
template: "{{ k8s_pod_template }}"
wait: yes
vars:
k8s_pod_name: wait-crash-deploy
k8s_pod_image: alpine:3.8
k8s_pod_command:
- /bin/false
register: wait_crash_deploy
ignore_errors: yes
- name: check that task failed
assert:
that:
- wait_crash_deploy is failed
- name: remove Pod with very short timeout
k8s:
api_version: v1
kind: Pod
name: wait-pod
namespace: "{{ wait_namespace }}"
state: absent
wait: yes
wait_timeout: 5
ignore_errors: yes
register: short_wait_remove_pod
- name: check that task failed
assert:
that:
- short_wait_remove_pod is failed
always:
- name: remove namespace
k8s:
kind: Namespace
name: "{{ wait_namespace }}"
state: absent
when: (nodes.resources | length) > 0