Update E2E AWX test playbook and guide (#678)

- increased the version of awx_operator_image_tag to 2.15.0 to fix error
with Kustomize
- added a step specific for users of Podman
- increased the timeout for the cluster setup (I saw in testing that the
default 120 seconds was not enough for a first install)

tests/e2e/utils/awx/readme.md

@@ -17,6 +17,12 @@ if you are not using the ansible-rulebook dev environment.
 
 # Steps
 
+0. When using Podman
+
+```
+export KIND_EXPERIMENTAL_PROVIDER=podman
+```
+
 1. Create the cluster
 
 ```

tests/e2e/utils/awx/roles/install-awx/defaults/main.yaml

@@ -3,7 +3,7 @@ awx_name: awx
 awx_image: quay.io/ansible/awx
 awx_image_tag: latest
 awx_operator_image: quay.io/ansible/awx-operator
-awx_operator_image_tag: "1.2.0"
+awx_operator_image_tag: "2.15.0"
 awx_namespace: awx
 awx_hostname: "localhost"
 awx_admin_password: password

tests/e2e/utils/awx/roles/install-awx/tasks/main.yaml

@@ -43,4 +43,5 @@
     label_selectors:
       - app.kubernetes.io/component=awx
     wait: yes
-    wait_sleep: 3
+    wait_sleep: 10
+    wait_timeout: 300