Dynamically include container-puppet tasks

The container-puppet tasks only need to be run if tasks actually exist, which
is already being checked on the ansible control node.

A "when" statement is then applied to the set of tasks necessary to run
the container-puppet tasks, when the tasks are actually defined.

This patch moves that set of tasks to a separate tasks file and uses a
dynamic include.  This results in less tasks being skipped, which can
save several minutes at scale. This results in 3 less tasks that need to
be skipped at steps 1-5, which equates to 15 tasks overall, when no
container-puppet tasks actually exist.

When container-puppet tasks do exist, all the tasks will be executed as
necessary.

Change-Id: Ifad32bf79942cde58295fd9aae7e23e2f62c1ae2

common/host-container-puppet-tasks.yaml

@@ -0,0 +1,48 @@
+- name: Write container-puppet-tasks json file for {{ansible_hostname}} step {{step}}
+  no_log: True
+  copy:
+    content: "{{host_container_puppet_tasks|to_nice_json}}"
+    dest: "/var/lib/container-puppet/container-puppet-tasks{{step}}.json"
+    force: yes
+    mode: '0600'
+  tags:
+    - container_config_tasks
+
+- name: Run container-puppet tasks (bootstrap tasks) for step {{ step }}
+  async: 3600
+  poll: 0
+  shell: "{{ python_cmd }} /var/lib/container-puppet/container-puppet.py"
+  environment:
+    CONFIG: /var/lib/container-puppet/{{ ansible_check_mode | bool | ternary('check-mode/', '') }}container-puppet-tasks{{ step }}.json
+    CONFIG_VOLUME_PREFIX: '/var/lib/config-data{{ ansible_check_mode | bool | ternary("/check-mode", "") }}'
+    NET_HOST: "true"
+    NO_ARCHIVE: "true"
+    STEP: "{{ step }}"
+    CONTAINER_CLI: "{{ container_cli }}"
+    DEBUG: "{{ docker_puppet_debug }}"
+    MOUNT_HOST_PUPPET: '{{docker_puppet_mount_host_puppet}}'
+    SHORT_HOSTNAME: "{{ ansible_hostname }}"
+    PROCESS_COUNT: "{{ docker_puppet_process_count }}"
+  register: bootstrap_tasks_async_result
+  no_log: true
+  tags:
+    - container_config_tasks
+
+- name: Wait for container-puppet tasks (bootstrap tasks) for step {{ step }} to finish
+  async_status:
+    jid: "{{ bootstrap_tasks_async_result.ansible_job_id }}"
+  register: bootstrap_tasks_outputs
+  until: bootstrap_tasks_outputs.finished
+  retries: 1200
+  delay: 3
+  tags:
+    - container_config_tasks
+
+- name: "Debug output for task: Run container-puppet tasks (bootstrap tasks) for step {{ step }}"
+  debug:
+    var: bootstrap_tasks_outputs.stdout_lines | default([]) | union(bootstrap_tasks_outputs.stderr_lines | default([]))
+  when:
+    - bootstrap_tasks_outputs.rc is defined
+  failed_when: bootstrap_tasks_outputs.rc != 0
+  tags:
+    - container_config_tasks