c12s-kubespray/roles/download/tasks/set_docker_image_facts.yml
Timoses d6fd0d2aca Enable delegating all downloads (binaries, images, kubeadm images) (#4420)
* Download to delegate and sync files when download_run_once

* Fail on error after saving container image

* Do not set changed status when downloaded container was up to date

* Only sync containers when they are actually required

Previously, non-required images (pull_required=false as
image existed on target host) were synced to the target
hosts. This failed as the image was not downloaded to
the download_delegate and hence was not available for
syncing.

* Sync containers when only missing on some hosts

* Consider images with multiple repo tags

* Enable kubeadm images pull/syncing with download_delegate

* Use kubeadm images list to pull/sync

'kubeadm config images pull' is replaced by collecting the images
list with 'kubeadm config images list' and using the commonly
used method of pull/syncing the images.

* Ensure containers are downloaded and synced for all hosts

* Fix download/syncing when download_delegate is a kubernetes host
2019-05-01 01:10:56 -07:00

42 lines
1.6 KiB
YAML

---
- set_fact:
pull_by_digest: >-
{%- if download.sha256 is defined and download.sha256 -%}true{%- else -%}false{%- endif -%}
- set_fact:
pull_args: >-
{%- if pull_by_digest %}{{download.repo}}@sha256:{{download.sha256}}{%- else -%}{{download.repo}}:{{download.tag}}{%- endif -%}
- name: Register docker images info
shell: >-
{{ docker_bin_dir }}/docker images -q | xargs -r {{ docker_bin_dir }}/docker inspect -f "{{ '{{' }} if .RepoTags {{ '}}' }}{{ '{{' }} (index .RepoTags) {{ '}}' }}{{ '{{' }} end {{ '}}' }}{{ '{{' }} if .RepoDigests {{ '}}' }},{{ '{{' }} (index .RepoDigests) {{ '}}' }}{{ '{{' }} end {{ '}}' }}" | sed -e 's/^ *\[//g' -e 's/\] *$//g' -e 's/ /\n/g' | tr '\n' ','
no_log: true
register: docker_images
failed_when: false
changed_when: false
check_mode: no
when: not download_always_pull
- set_fact:
pull_required: >-
{%- if pull_args in docker_images.stdout.split(',') %}false{%- else -%}true{%- endif -%}
when: not download_always_pull
- name: Does any host require container pull?
vars:
hosts_pull_required: "{{ hostvars.values() | map(attribute='pull_required') | select('defined') | list }}"
set_fact:
any_pull_required: "{{ True in hosts_pull_required }}"
run_once: true
changed_when: false
when: not download_always_pull
- name: Check the local digest sha256 corresponds to the given image tag
assert:
that: "{{download.repo}}:{{download.tag}} in docker_images.stdout.split(',')"
when:
- not download_always_pull
- not pull_required
- pull_by_digest
tags:
- asserts