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add support for check_mode for modules k8s_scale and k8s_rollback (#255)
k8s_scale, k8s_rollback - add support for check_mode SUMMARY closes #243 and #244 ISSUE TYPE Bugfix Pull Request COMPONENT NAME k8s_scale k8s_rollback ADDITIONAL INFORMATION Reviewed-by: Alina Buzachis <None> Reviewed-by: None <None> Reviewed-by: Mike Graves <mgraves@redhat.com>
This commit is contained in:
abikouo
GitHub
@@ -8,18 +8,12 @@
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k8s:
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name: "{{ namespace }}"
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kind: Namespace
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api_version: v1
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apply: no
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register: output
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- name: show output
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debug:
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var: output
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- name: Create a deployment
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k8s:
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state: present
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wait: yes
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wait_timeout: 30
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inline: &deploy
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apiVersion: apps/v1
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kind: Deployment
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@@ -43,11 +37,7 @@
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image: nginx:1.17
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ports:
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- containerPort: 80
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register: output
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- name: Show output
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debug:
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var: output
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- name: Crash the existing deployment
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k8s:
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@@ -77,7 +67,47 @@
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ports:
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- containerPort: 80
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ignore_errors: yes
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register: output
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register: crash
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- name: Assert that the Deployment failed
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assert:
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that:
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- crash is failed
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- name: Read the deployment
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k8s_info:
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kind: Deployment
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name: nginx-deploy
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namespace: "{{ namespace }}"
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register: deployment
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- set_fact:
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failed_version: "{{ deployment.resources[0].metadata.annotations['deployment.kubernetes.io/revision'] }}"
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- name: Rolling Back the crashed deployment (check mode)
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k8s_rollback:
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api_version: apps/v1
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kind: Deployment
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name: nginx-deploy
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namespace: "{{ namespace }}"
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register: result
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check_mode: yes
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- assert:
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that:
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- result is changed
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- name: Read the deployment
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k8s_info:
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kind: Deployment
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name: nginx-deploy
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namespace: "{{ namespace }}"
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register: deployment
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- name: Validate that Rollback using check_mode did not changed the Deployment
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assert:
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that:
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- failed_version == deployment.resources[0].metadata.annotations['deployment.kubernetes.io/revision']
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- name: Rolling Back the crashed deployment
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k8s_rollback:
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@@ -85,12 +115,24 @@
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kind: Deployment
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name: nginx-deploy
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namespace: "{{ namespace }}"
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when: output.failed
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register: output
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register: result
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- name: Show output
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debug:
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var: output
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- name: assert rollback is changed
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assert:
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that:
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- result is changed
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- name: Read the deployment once again
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k8s_info:
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kind: Deployment
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name: nginx-deploy
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namespace: "{{ namespace }}"
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register: deployment
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- name: Validate that Rollback changed the Deployment
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assert:
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that:
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- failed_version | int + 1 == deployment.resources[0].metadata.annotations['deployment.kubernetes.io/revision'] | int
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- name: Create a DaemonSet
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k8s:
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@@ -139,16 +181,12 @@
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- name: varlibdockercontainers
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hostPath:
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path: /var/lib/docker/containers
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register: output
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- name: Show output
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debug:
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var: output
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- name: Crash the existing DaemonSet
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k8s:
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state: present
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wait: yes
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wait_timeout: 30
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definition:
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apiVersion: apps/v1
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kind: DaemonSet
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@@ -192,8 +230,44 @@
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- name: varlibdockercontainers
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hostPath:
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path: /var/lib/docker/containers
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ignore_errors: yes
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register: output
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register: crash
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ignore_errors: true
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- name: Assert that the Daemonset failed
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assert:
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that:
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- crash is failed
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- name: Read the crashed DaemonSet
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k8s_info:
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kind: DaemonSet
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name: fluentd-elasticsearch
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namespace: "{{ namespace }}"
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register: result
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- set_fact:
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failed_version: "{{ result.resources[0].metadata.annotations['deprecated.daemonset.template.generation'] }}"
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- name: Rolling Back the crashed DaemonSet (check_mode)
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k8s_rollback:
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api_version: apps/v1
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kind: DaemonSet
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name: fluentd-elasticsearch
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namespace: "{{ namespace }}"
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register: result
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check_mode: yes
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- name: Read the DaemonSet
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k8s_info:
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kind: DaemonSet
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name: fluentd-elasticsearch
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namespace: "{{ namespace }}"
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register: result
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- name: Validate that Rollback using check_mode did not changed the DaemonSet version
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assert:
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that:
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- failed_version == result.resources[0].metadata.annotations['deprecated.daemonset.template.generation']
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- name: Rolling Back the crashed DaemonSet
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k8s_rollback:
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@@ -201,12 +275,24 @@
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kind: DaemonSet
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name: fluentd-elasticsearch
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namespace: "{{ namespace }}"
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when: output.failed
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register: output
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register: result
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- name: Show output
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debug:
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var: output
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- name: assert rollback is changed
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assert:
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that:
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- result is changed
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- name: Read the DaemonSet
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k8s_info:
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kind: DaemonSet
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name: fluentd-elasticsearch
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namespace: "{{ namespace }}"
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register: result
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- name: Validate that Rollback changed the Daemonset version
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assert:
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that:
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- failed_version | int + 1 == result.resources[0].metadata.annotations['deprecated.daemonset.template.generation'] | int
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always:
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- name: Delete {{ namespace }} namespace
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@@ -45,6 +45,68 @@
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field_selectors:
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- status.phase=Running
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- name: Scale the deployment (check_mode)
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k8s_scale:
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api_version: apps/v1
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kind: Deployment
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name: scale-deploy
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namespace: "{{ scale_namespace }}"
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replicas: 0
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wait: yes
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register: scale_down
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check_mode: true
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- name: Get pods in scale-deploy
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k8s_info:
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kind: Pod
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label_selectors:
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- app=scale-deploy
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namespace: "{{ scale_namespace }}"
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field_selectors:
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- status.phase=Running
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register: scale_down_deploy_pods
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ignore_errors: true
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until: scale_down_deploy_pods.resources | length == 0
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retries: 6
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delay: 5
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- name: Ensure the deployment did not changed and pods are still running
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assert:
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that:
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- scale_down is changed
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- scale_down_deploy_pods.resources | length > 0
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- name: Scale the deployment (check_mode) once again - validate idempotency
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k8s_scale:
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api_version: apps/v1
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kind: Deployment
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name: scale-deploy
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namespace: "{{ scale_namespace }}"
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replicas: 0
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wait: yes
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register: scale_down
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check_mode: true
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- name: Get pods in scale-deploy
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k8s_info:
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kind: Pod
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label_selectors:
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- app=scale-deploy
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namespace: "{{ scale_namespace }}"
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field_selectors:
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- status.phase=Running
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register: scale_down_deploy_pods
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ignore_errors: true
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until: scale_down_deploy_pods.resources | length == 0
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retries: 6
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delay: 5
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- name: Ensure the deployment did not changed and pods are still running
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assert:
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that:
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- scale_down is changed
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- scale_down_deploy_pods.resources | length > 0
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- name: Scale the deployment
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k8s_scale:
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api_version: apps/v1
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@@ -76,6 +138,22 @@
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- '"duration" in scale_down'
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- scale_down.diff
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- name: Scale the deployment once again (idempotency)
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k8s_scale:
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api_version: apps/v1
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kind: Deployment
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name: scale-deploy
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namespace: "{{ scale_namespace }}"
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replicas: 0
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wait: yes
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register: scale_down_idempotency
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diff: true
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- name: Ensure that scale down did not took effect
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assert:
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that:
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- scale_down_idempotency is not changed
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- name: Reapply the earlier deployment
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k8s:
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definition:
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