137 lines
5.1 KiB
YAML
137 lines
5.1 KiB
YAML
---
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- name: container_download | Make download decision if pull is required by tag or sha256
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include_tasks: set_docker_image_facts.yml
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when:
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- download.enabled
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- download.container
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tags:
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- facts
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- block:
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- name: download_container | Set a few facts
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import_tasks: set_container_facts.yml
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run_once: "{{ download_run_once }}"
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tags:
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- facts
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- name: download_container | Determine if image is in cache
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stat:
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path: "{{ image_path_cached }}"
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delegate_to: localhost
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delegate_facts: no
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register: cache_image
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changed_when: false
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become: false
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when:
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- download_force_cache
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- name: download_container | Set fact indicating if image is in cache
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set_fact:
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image_is_cached: "{{ cache_image.stat.exists | default(false) }}"
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tags:
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- facts
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when:
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- download_force_cache
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- name: download_container | Upload image to node if it is cached
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synchronize:
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src: "{{ image_path_cached }}"
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dest: "{{ image_path_final }}"
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use_ssh_args: "{{ has_bastion | default(false) }}"
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mode: push
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delegate_facts: no
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register: upload_image
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failed_when: not upload_image
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run_once: "{{ download_run_once }}"
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until: upload_image is succeeded
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retries: 4
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delay: "{{ retry_stagger | random + 3 }}"
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when:
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- download_force_cache
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- image_is_cached
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- not download_localhost
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- ansible_os_family not in ["CoreOS", "Coreos", "Container Linux by CoreOS"]
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- name: download_container | Load image into docker
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shell: "{{ docker_bin_dir }}/docker load < {{ image_path_cached if download_localhost else image_path_final }}"
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delegate_to: "{{ download_delegate if download_run_once else inventory_hostname }}"
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run_once: "{{ download_run_once }}"
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register: container_load_status
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failed_when: container_load_status | failed
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become: "{{ user_can_become_root | default(false) or not (download_run_once and download_localhost) }}"
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when:
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- download_force_cache
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- image_is_cached
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- ansible_os_family not in ["CoreOS", "Coreos", "Container Linux by CoreOS"]
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- name: download_container | Prepare container download
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include_tasks: check_pull_required.yml
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run_once: "{{ download_run_once }}"
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when:
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- not download_always_pull
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- debug:
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msg: "XXX Pull required is: {{ pull_required }}"
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# NOTE: Pre-loading docker images will not prevent 'docker pull' from re-downloading the layers in that image
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# if a pull is forced. This is a known issue with docker. See https://github.com/moby/moby/issues/23684
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- name: download_container | Download image if required
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command: "{{ image_pull_command }} {{ image_reponame }}"
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delegate_to: "{{ download_delegate if download_run_once else inventory_hostname }}"
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delegate_facts: yes
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run_once: "{{ download_run_once }}"
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register: pull_task_result
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until: pull_task_result is succeeded
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delay: "{{ retry_stagger | random + 3 }}"
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retries: 4
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become: "{{ user_can_become_root | default(false) or not download_localhost }}"
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when:
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- pull_required | default(download_always_pull)
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# NOTE: image_changed is only valid if a pull is was needed or forced.
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- name: download_container | Check if image changed
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set_fact:
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image_changed: "{{ true if pull_task_result.stdout is defined and not 'up to date' in pull_task_result.stdout else false }}"
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run_once: true
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when:
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- download_force_cache
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tags:
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- facts
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- name: download_container | Save and compress image
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shell: "{{ docker_bin_dir }}/docker save {{ image_reponame }} | gzip -{{ download_compress }} > {{ image_path_cached if download_localhost else image_path_final }}"
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delegate_to: "{{ download_delegate if download_run_once else inventory_hostname }}"
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delegate_facts: no
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register: container_save_status
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failed_when: container_save_status.stderr
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run_once: true
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become: "{{ user_can_become_root | default(false) or not download_localhost }}"
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when:
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- download_force_cache
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- not image_is_cached or (image_changed | default(true))
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- ansible_os_family not in ["CoreOS", "Coreos", "Container Linux by CoreOS"]
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- name: download_container | Copy image to ansible host cache
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synchronize:
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src: "{{ image_path_final }}"
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dest: "{{ image_path_cached }}"
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use_ssh_args: "{{ has_bastion | default(false) }}"
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mode: pull
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delegate_facts: no
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when:
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- download_force_cache
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- not download_localhost
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- download_delegate == inventory_hostname
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- not image_is_cached or (image_changed | default(true))
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- ansible_os_family not in ["CoreOS", "Coreos", "Container Linux by CoreOS"]
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- name: download_container | Remove container image from cache
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file:
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state: absent
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path: "{{ image_path_final }}"
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when:
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- not download_keep_remote_cache
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- ansible_os_family not in ["CoreOS", "Coreos", "Container Linux by CoreOS"]
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tags:
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- download
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