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[backport/2.2] Move integration test suite from molecule to ansible-test (#392)
Move integration test suite from molecule to ansible-test
SUMMARY
molecule has been replaced with ansible-test
some test cases have been updated
k8s_apply : remove duplicated tasks increasing the running time of the test
helm: use different namespaces for different test cases in order to wait for the namespace deletion before moving to the next test.
all: remove wait: yes at the end of each test when deleting namespace, the role used to create namespace will ensure that it is deleted before if existing.
ISSUE TYPE
Feature Pull Request
COMPONENT NAME
integration testing
Reviewed-by: Mike Graves mgraves@redhat.com
Reviewed-by: Gonéri Le Bouder goneri@lebouder.net
Reviewed-by: None
(cherry picked from commit fd61f8b)
SUMMARY
ISSUE TYPE
Bugfix Pull Request
Docs Pull Request
Feature Pull Request
New Module Pull Request
COMPONENT NAME
ADDITIONAL INFORMATION
This commit is contained in:
Mike Graves
GitHub
233
tests/integration/targets/k8s_drain/tasks/main.yml
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233
tests/integration/targets/k8s_drain/tasks/main.yml
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@@ -0,0 +1,233 @@
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---
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- block:
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- name: Set common facts
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set_fact:
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drain_daemonset_name: "promotheus-dset"
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drain_pod_name: "pod-drain"
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# It seems that the default ServiceAccount can take a bit to be created
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# right after a cluster is brought up. This can lead to the ServiceAccount
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# admission controller rejecting a Pod creation request because the
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# ServiceAccount does not yet exist.
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- name: Wait for default serviceaccount to be created
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k8s_info:
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kind: ServiceAccount
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name: default
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namespace: "{{ test_namespace }}"
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wait: yes
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- name: list cluster nodes
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k8s_info:
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kind: node
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register: nodes
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- name: Select uncordoned nodes
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set_fact:
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uncordoned_nodes: "{{ nodes.resources | selectattr('spec.unschedulable', 'undefined') | map(attribute='metadata.name') | list}}"
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- name: Assert that at least one node is schedulable
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assert:
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that:
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- uncordoned_nodes | length > 0
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- name: select node to drain
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set_fact:
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node_to_drain: '{{ uncordoned_nodes[0] }}'
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- name: Deploy daemonset on cluster
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k8s:
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namespace: '{{ test_namespace }}'
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definition:
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: '{{ drain_daemonset_name }}'
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spec:
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affinity:
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nodeAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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nodeSelectorTerms:
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- matchFields:
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- key: metadata.name
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operator: In
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values:
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- '{{ node_to_drain }}'
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selector:
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matchLabels:
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name: prometheus-exporter
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template:
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metadata:
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labels:
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name: prometheus-exporter
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spec:
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containers:
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- name: prometheus
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image: prom/node-exporter
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ports:
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- containerPort: 80
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- name: Create Pods not managed by ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet.
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k8s:
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namespace: '{{ test_namespace }}'
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wait: yes
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wait_timeout: "{{ k8s_wait_timeout | default(omit) }}"
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definition:
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apiVersion: v1
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kind: Pod
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metadata:
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name: '{{ drain_pod_name }}'
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spec:
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affinity:
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nodeAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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nodeSelectorTerms:
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- matchFields:
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- key: metadata.name
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operator: In
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values:
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- '{{ node_to_drain }}'
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containers:
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- name: c0
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image: busybox
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command:
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- /bin/sh
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- -c
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- while true;do date;sleep 5; done
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- name: Cordon node
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k8s_drain:
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state: cordon
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name: '{{ node_to_drain }}'
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register: cordon
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- name: assert that cordon is changed
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assert:
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that:
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- cordon is changed
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- name: Test cordon idempotency
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k8s_drain:
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state: cordon
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name: '{{ node_to_drain }}'
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register: cordon
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- name: assert that cordon is not changed
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assert:
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that:
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- cordon is not changed
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- name: Get pods
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k8s_info:
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kind: Pod
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namespace: '{{ test_namespace }}'
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register: Pod
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- name: assert that pods are running on cordoned node
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assert:
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that:
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- "{{ Pod.resources | selectattr('status.phase', 'equalto', 'Running') | selectattr('spec.nodeName', 'equalto', node_to_drain) | list | length > 0 }}"
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- name: Uncordon node
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k8s_drain:
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state: uncordon
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name: '{{ node_to_drain }}'
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register: uncordon
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- name: assert that uncordon is changed
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assert:
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that:
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- uncordon is changed
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- name: Test uncordon idempotency
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k8s_drain:
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state: uncordon
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name: '{{ node_to_drain }}'
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register: uncordon
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- name: assert that uncordon is not changed
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assert:
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that:
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- uncordon is not changed
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- name: Drain node
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k8s_drain:
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state: drain
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name: '{{ node_to_drain }}'
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ignore_errors: true
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register: drain_result
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- name: assert that drain failed due to DaemonSet managed Pods
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assert:
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that:
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- drain_result is failed
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- '"cannot delete DaemonSet-managed Pods" in drain_result.msg'
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- '"cannot delete Pods not managed by ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet" in drain_result.msg'
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- name: Drain node using ignore_daemonsets and force options
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k8s_drain:
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state: drain
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name: '{{ node_to_drain }}'
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delete_options:
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force: true
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ignore_daemonsets: true
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wait_timeout: 0
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register: drain_result
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- name: assert that node has been drained
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assert:
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that:
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- drain_result is changed
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- '"node {{ node_to_drain }} marked unschedulable." in drain_result.result'
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- name: assert that unmanaged pod were deleted
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k8s_info:
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namespace: '{{ test_namespace }}'
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kind: Pod
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name: '{{ drain_pod_name }}'
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register: _result
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failed_when: _result.resources
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- name: Test drain idempotency
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k8s_drain:
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state: drain
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name: '{{ node_to_drain }}'
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delete_options:
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force: true
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ignore_daemonsets: true
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register: drain_result
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- name: Check idempotency
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assert:
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that:
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- drain_result is not changed
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- name: Get DaemonSet
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k8s_info:
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kind: DaemonSet
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namespace: '{{ test_namespace }}'
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name: '{{ drain_daemonset_name }}'
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register: dset_result
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- name: assert that daemonset managed pods were not removed
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assert:
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that:
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- dset_result.resources | list | length > 0
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- name: Uncordon node
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k8s_drain:
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state: uncordon
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name: '{{ node_to_drain }}'
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always:
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- name: Uncordon node
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k8s_drain:
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state: uncordon
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name: '{{ node_to_drain }}'
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when: node_to_drain is defined
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ignore_errors: true
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- name: delete namespace
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k8s:
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state: absent
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kind: namespace
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name: '{{ test_namespace }}'
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