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Enable delegating all downloads (binaries, images, kubeadm images) (#4420)

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* 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
This commit is contained in:
Timoses
2019-05-01 10:10:56 +02:00
committed by Kubernetes Prow Robot
parent e814da1eec
commit d6fd0d2aca
11 changed files with 188 additions and 50 deletions
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7
roles/download/tasks/download_container.yml
View File

@@ -1,9 +1,6 @@
---
- name: container_download | Make download decision if pull is required by tag or sha256
include_tasks: set_docker_image_facts.yml
delegate_to: "{{ download_delegate if download_run_once or omit }}"
delegate_facts: yes
run_once: "{{ download_run_once }}"
when:
- download.enabled
- download.container
@@ -18,11 +15,12 @@
until: pull_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | random + 3 }}"
changed_when: not 'up to date' in pull_task_result.stdout
when:
- download_run_once
- download.enabled
- download.container
- pull_required|default(download_always_pull)
- any_pull_required | default(download_always_pull)
delegate_to: "{{ download_delegate }}"
delegate_facts: yes
run_once: yes
@@ -33,6 +31,7 @@
until: pull_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | random + 3 }}"
changed_when: not 'up to date' in pull_task_result.stdout
when:
- not download_run_once
- download.enabled