major cleanup of ansible tasks in podman role

ansible/roles/podman/tasks/ecr/podman-ecr-login.yml

@@ -0,0 +1,21 @@
+---
+- name: fetch aws ecr auth token
+  become: true
+  become_user: "{{ podman_user }}"
+  shell: |
+    aws ecr get-authorization-token --region us-east-1
+  register: ecr_command
+
+- set_fact:
+    ecr_authorization_data: "{{ (ecr_command.stdout | from_json).authorizationData[0] }}"
+
+- set_fact:
+    ecr_credentials: "{{ (ecr_authorization_data.authorizationToken | b64decode).split(':') }}"
+
+- name: podman login to AWS ECR
+  become: true
+  become_user: "{{ podman_user }}"
+  containers.podman.podman_login:
+    registry: "{{ aws_ecr_endpoint }}"
+    username: "{{ ecr_credentials[0] }}"
+    password: "{{ ecr_credentials[1] }}"