k8s ability to wait on arbitrary property (#105)

* missing implementation of jsonpath library

* not tested

* sanity

* save

* updates

* Update args_common.py

* lint validation

* fix

* Update k8s.py

* attribute should match for all

* select wait

* Revert "select wait"

This reverts commit a20a1f6f01.

* sanity

* Update molecule/default/tasks/waiter.yml

Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>

* Update jsonpath_extractor.py

* Update k8s_wait_options.py

Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>

plugins/modules/k8s.py

@@ -252,6 +252,32 @@ EXAMPLES = r'''
       status: Unknown
       reason: DeploymentPaused
 
+# Wait for this service to have acquired an External IP
+- name: Create ingress and wait for ip to be assigned
+  kubernetes.core.k8s:
+    template: dash-service.yaml
+    wait: yes
+    wait_property:
+      property: status.loadBalancer.ingress[*].ip
+
+# Wait for container inside a pod to be ready
+- name: Create Pod and wait for containers to be ready
+  kubernetes.core.k8s:
+    template: pod.yaml
+    wait: yes
+    wait_property:
+      property: status.containerStatuses[*].ready
+      value: "true"
+
+# Wait for first container inside a pod to be ready
+- name: Create Pod and wait for first containers to be ready
+  kubernetes.core.k8s:
+    template: pod.yaml
+    wait: yes
+    wait_property:
+      property: status.containerStatuses[0].ready
+      value: "true"
+
 # Patch existing namespace : add label
 - name: add label to existing namespace
   kubernetes.core.k8s:

plugins/modules/k8s_info.py

@@ -164,6 +164,7 @@ def execute_module(module, k8s_ansible_mixin):
         wait_sleep=module.params["wait_sleep"],
         wait_timeout=module.params["wait_timeout"],
         condition=module.params["wait_condition"],
+        property=module.params["wait_property"]
     )
     module.exit_json(changed=False, **facts)