k8s support diff mode (#146)

* support diff mode for k8s module * Update and rename 145-k8s-add-support-diff-mode.yml to 146-k8s-add-support-diff-mode.yml * Update 146-k8s-add-support-diff-mode.yml * Update changelogs/fragments/146-k8s-add-support-diff-mode.yml Co-authored-by: Mike Graves <mgraves@redhat.com> * update k8s_scale and k8s_json_patch * diff for k8s_scale and k8s_json_patch Co-authored-by: Mike Graves <mgraves@redhat.com>
2026-05-07 13:32:37 +00:00 · 2021-07-21 14:29:28 +02:00
parent e9be88f212
commit 3c36b6fa0f
9 changed files with 200 additions and 9 deletions
--- a/molecule/default/tasks/diff.yml
+++ b/molecule/default/tasks/diff.yml
@@ -0,0 +1,153 @@
+---
+- set_fact:
+    diff_namespace: "diff"
+    diff_configmap: "diff-configmap"
+
+- block:
+  - name: Ensure namespace
+    k8s:
+      kind: Namespace
+      name: '{{ diff_namespace }}'
+
+  # Using option 'apply' set to 'yes'
+  - name: Create Pod using apply and diff set to yes
+    k8s:
+      namespace: '{{ diff_namespace }}'
+      apply: yes
+      template: "pod_diff.j2"
+    diff: yes
+    vars:
+      pod_name: "pod-apply"
+      pod_image: "busybox:1.32.0"
+    register: result
+
+  - name: check that result has diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is defined
+
+  - name: Update pod definition using apply and diff set to no
+    k8s:
+      namespace: '{{ diff_namespace }}'
+      apply: yes
+      template: "pod_diff.j2"
+    diff: no
+    vars:
+      pod_name: "pod-apply"
+      pod_image: "busybox:1.33.0"
+    register: result
+
+  - name: check that output has no diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is not defined
+
+  # Using option 'state=patched'
+  - name: Create Pod using state=present and diff set to yes
+    k8s:
+      namespace: '{{ diff_namespace }}'
+      state: present
+      template: "pod_diff.j2"
+    vars:
+      pod_name: "pod-patch"
+      pod_image: "busybox:1.32.0"
+    register: result
+
+  - name: Update pod definition using state=patched
+    k8s:
+      namespace: '{{ diff_namespace }}'
+      state: patched
+      template: "pod_diff.j2"
+    diff: no
+    vars:
+      pod_name: "pod-patch"
+      pod_image: "busybox:1.33.0"
+      pod_label: "patching"
+    register: result
+
+  - name: check that output has no diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is not defined
+
+  - name: Update pod definition using state=patched and diff=yes
+    k8s:
+      namespace: '{{ diff_namespace }}'
+      state: patched
+      template: "pod_diff.j2"
+    diff: yes
+    vars:
+      pod_name: "pod-patch"
+      pod_image: "busybox:1.33.0"
+      pod_label: "running"
+    register: result
+
+  - name: check that output has no diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is defined
+
+  # check diff mode using force=yes
+  - name: Create a ConfigMap
+    k8s:
+      kind: ConfigMap
+      name: '{{ diff_configmap }}'
+      namespace: '{{ diff_namespace }}'
+      definition:
+        data:
+          key: "initial value"
+    diff: yes
+    register: result
+
+  - name: check that output has no diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is not defined
+
+  - name: Update ConfigMap using force and diff=no
+    k8s:
+      kind: ConfigMap
+      name: '{{ diff_configmap }}'
+      namespace: '{{ diff_namespace }}'
+      force: yes
+      definition:
+        data:
+          key: "update value with diff=no"
+    diff: no
+    register: result
+
+  - name: check that output has no diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is not defined
+
+  - name: Update ConfigMap using force and diff=yes
+    k8s:
+      kind: ConfigMap
+      name: '{{ diff_configmap }}'
+      namespace: '{{ diff_namespace }}'
+      force: yes
+      definition:
+        data:
+          key: "update value with diff=yes"
+    diff: yes
+    register: result
+
+  - name: check that output has diff attribute
+    assert:
+      that:
+      - result is changed
+      - result.diff is defined
+
+  always:
+  - name: Ensure namespace is deleted
+    k8s:
+      state: absent
+      kind: Namespace
+      name: '{{ diff_namespace }}'