Split JSON patch out into a new module (#99)

Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>
This commit is contained in:
Mike Graves
2021-05-24 08:35:48 -04:00
committed by GitHub
parent 1f47931c7c
commit 5b5777d202
7 changed files with 467 additions and 151 deletions

View File

@@ -90,6 +90,13 @@
tags: [ info, k8s ]
tags:
- always
- name: Include json_patch.yml
include_tasks:
file: tasks/json_patch.yml
apply:
tags: [ json_patch, k8s ]
tags:
- always
- name: Include lists.yml
include_tasks:
file: tasks/lists.yml

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@@ -0,0 +1,170 @@
- vars:
namespace: json-patch
pod: json-patch
deployment: json-patch
block:
- name: Ensure namespace exists
kubernetes.core.k8s:
kind: namespace
name: "{{ namespace }}"
- name: Create a simple pod
kubernetes.core.k8s:
definition:
apiVersion: v1
kind: Pod
metadata:
namespace: "{{ namespace }}"
name: "{{ pod }}"
labels:
label1: foo
spec:
containers:
- image: busybox:musl
name: busybox
command:
- sh
- -c
- while true; do echo $(date); sleep 10; done
wait: yes
- name: Add a label and replace the image in checkmode
kubernetes.core.k8s_json_patch:
kind: Pod
namespace: "{{ namespace }}"
name: "{{ pod }}"
patch:
- op: add
path: /metadata/labels/label2
value: bar
- op: replace
path: /spec/containers/0/image
value: busybox:glibc
check_mode: yes
register: result
- name: Assert patch was made
assert:
that:
- result.changed
- result.result.metadata.labels.label2 == "bar"
- result.result.spec.containers[0].image == "busybox:glibc"
- name: Describe pod
kubernetes.core.k8s_info:
kind: Pod
name: "{{ pod }}"
namespace: "{{ namespace }}"
register: result
- name: Assert pod has not changed
assert:
that:
- result.resources[0].metadata.labels.label2 is not defined
- result.resources[0].spec.containers[0].image == "busybox:musl"
- name: Add a label and replace the image
kubernetes.core.k8s_json_patch:
kind: Pod
namespace: "{{ namespace }}"
name: "{{ pod }}"
patch:
- op: add
path: /metadata/labels/label2
value: bar
- op: replace
path: /spec/containers/0/image
value: busybox:glibc
register: result
- name: Assert patch was made
assert:
that:
- result.changed
- name: Describe pod
kubernetes.core.k8s_info:
kind: Pod
name: "{{ pod }}"
namespace: "{{ namespace }}"
register: result
- name: Assert that both patch operations have been applied
assert:
that:
- result.resources[0].metadata.labels.label2 == "bar"
- result.resources[0].spec.containers[0].image == "busybox:glibc"
- name: Apply the same patch to the pod
kubernetes.core.k8s_json_patch:
kind: Pod
namespace: "{{ namespace }}"
name: "{{ pod }}"
patch:
- op: add
path: /metadata/labels/label2
value: bar
- op: replace
path: /spec/containers/0/image
value: busybox:glibc
register: result
- name: Assert that no changes were made
assert:
that:
- not result.changed
- name: Create a simple deployment
kubernetes.core.k8s:
wait: yes
definition:
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: "{{ namespace }}"
name: "{{ deployment }}"
labels:
name: "{{ deployment }}"
spec:
replicas: 2
selector:
matchLabels:
app: busybox
template:
metadata:
labels:
app: busybox
spec:
containers:
- name: busybox
image: busybox
command:
- sh
- -c
- while true; do echo $(date); sleep 10; done
- name: Apply patch and wait for deployment to be ready
kubernetes.core.k8s_json_patch:
kind: Deployment
namespace: "{{ namespace }}"
name: "{{ deployment }}"
patch:
- op: replace
path: /spec/replicas
value: 3
wait: yes
register: result
- name: Assert all replicas are available
assert:
that:
- result.result.status.availableReplicas == 3
always:
- name: Ensure namespace has been deleted
kubernetes.core.k8s:
kind: Namespace
name: "{{ namespace }}"
state: absent
ignore_errors: yes

View File

@@ -134,115 +134,6 @@
- merge_out.resources[0].spec.template.spec.containers | list | length == 1
- merge_out.resources[0].spec.template.spec.containers[0].image == 'python'
# Json
- name: create simple pod
kubernetes.core.k8s:
namespace: "{{ k8s_patch_namespace }}"
definition:
apiVersion: v1
kind: Pod
metadata:
name: "{{ k8s_json }}-pod"
labels:
name: "{{ k8s_json }}-pod"
spec:
containers:
- args:
- /bin/sh
- -c
- while true; do echo $(date); sleep 10; done
image: python:3.7-alpine
imagePullPolicy: Always
name: alpine
- name: Patch pod - update container image
kubernetes.core.k8s:
kind: Pod
namespace: "{{ k8s_patch_namespace }}"
name: "{{ k8s_json }}-pod"
merge_type:
- json
definition:
- op: replace
path: /spec/containers/0/image
value: python:3.8-alpine
register: pod_patch
- name: assert that patch was performed
assert:
that:
- pod_patch.changed
- name: describe Pod after patching
kubernetes.core.k8s_info:
kind: Pod
name: "{{ k8s_json }}-pod"
namespace: "{{ k8s_patch_namespace }}"
register: describe_pod
- name: assert that image name has changed
assert:
that:
- describe_pod.resources[0].spec.containers[0].image == 'python:3.8-alpine'
- name: create a simple nginx deployment
kubernetes.core.k8s:
namespace: "{{ k8s_patch_namespace }}"
definition:
apiVersion: apps/v1
kind: Deployment
metadata:
name: "{{ k8s_json }}-depl"
labels:
name: "{{ k8s_json }}-depl"
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx-container
image: nginx
args:
- /bin/sh
- -c
- while true; do echo $(date); sleep 10; done
- name: Patch Nginx deployment command
kubernetes.core.k8s:
kind: Deployment
namespace: "{{ k8s_patch_namespace }}"
name: "{{ k8s_json }}-depl"
merge_type:
- json
definition:
- op: add
path: '/spec/template/spec/containers/0/args/-'
value: 'touch /var/log'
register: patch_out
- name: assert that patch succeed
assert:
that:
- patch_out.changed
- name: describe deployment after patching
kubernetes.core.k8s_info:
kind: Deployment
name: "{{ k8s_json }}-depl"
namespace: "{{ k8s_patch_namespace }}"
register: describe_depl
- name: assert that args changed on deployment
assert:
that:
- describe_depl.resources[0].spec.template.spec.containers[0].args | length == 4
always:
- name: Ensure namespace has been deleted
kubernetes.core.k8s: