c12s-kubespray/roles/download/tasks/download_container.yml

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---
- name: container_download | Make download decision if pull is required by tag or sha256
include_tasks: set_docker_image_facts.yml
when:
- download.enabled
- download.container
tags:
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- facts
- block:
- name: download_container | Set a few facts
import_tasks: set_container_facts.yml
run_once: "{{ download_run_once }}"
tags:
- facts
- name: download_container | Determine if image is in cache
stat:
path: "{{ image_path_cached }}"
delegate_to: localhost
delegate_facts: no
register: cache_image
changed_when: false
become: false
when:
- download_force_cache
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Set fact indicating if image is in cache
set_fact:
image_is_cached: "{{ cache_image.stat.exists | default(false) }}"
tags:
- facts
when:
- download_force_cache
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Upload image to node if it is cached
synchronize:
src: "{{ image_path_cached }}"
dest: "{{ image_path_final }}"
use_ssh_args: "{{ has_bastion | default(false) }}"
mode: push
delegate_facts: no
register: upload_image
failed_when: not upload_image
run_once: "{{ download_run_once }}"
until: upload_image is succeeded
retries: 4
delay: "{{ retry_stagger | random + 3 }}"
when:
- download_force_cache
- image_is_cached
- not download_localhost
- ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Load image into docker
shell: "{{ docker_bin_dir }}/docker load < {{ image_path_cached if download_localhost else image_path_final }}"
delegate_to: "{{ download_delegate if download_run_once or inventory_hostname }}"
run_once: "{{ download_run_once }}"
register: container_load_status
failed_when: container_load_status | failed
become: "{{ user_can_become_root | default(false) or not (download_run_once and download_localhost) }}"
when:
- download_force_cache
- image_is_cached
- ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Prepare container download
include_tasks: check_pull_required.yml
run_once: "{{ download_run_once }}"
when:
- not download_always_pull
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- debug:
msg: "XXX Pull required is: {{ pull_required }}"
# NOTE: Pre-loading docker images will not prevent 'docker pull' from re-downloading the layers in that image
# if a pull is forced. This is a known issue with docker. See https://github.com/moby/moby/issues/23684
- name: download_container | Download image if required
command: "{{ image_pull_command }} {{ image_reponame }}"
delegate_to: "{{ download_delegate if download_run_once or inventory_hostname }}"
delegate_facts: yes
run_once: "{{ download_run_once }}"
register: pull_task_result
until: pull_task_result is succeeded
delay: "{{ retry_stagger | random + 3 }}"
retries: 4
become: "{{ user_can_become_root | default(false) or not download_localhost }}"
when:
- pull_required | default(download_always_pull)
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
# NOTE: image_changed is only valid if a pull is was needed or forced.
- name: download_container | Check if image changed
set_fact:
image_changed: "{{ true if pull_task_result.stdout is defined and not 'up to date' in pull_task_result.stdout else false }}"
run_once: true
when:
- download_force_cache
tags:
- facts
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Save and compress image
shell: "{{ docker_bin_dir }}/docker save {{ image_reponame }} | gzip -{{ download_compress }} > {{ image_path_cached if download_localhost else image_path_final }}"
delegate_to: "{{ download_delegate if download_run_once or inventory_hostname }}"
delegate_facts: no
register: container_save_status
failed_when: container_save_status.stderr
run_once: true
become: "{{ user_can_become_root | default(false) or not download_localhost }}"
when:
- download_force_cache
- not image_is_cached or (image_changed | default(true))
- ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Copy image to ansible host cache
synchronize:
src: "{{ image_path_final }}"
dest: "{{ image_path_cached }}"
use_ssh_args: "{{ has_bastion | default(false) }}"
mode: pull
delegate_facts: no
run_once: true
when:
- download_force_cache
- not download_localhost
- not image_is_cached or (image_changed | default(true))
- ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
- name: download_container | Remove container image from cache
file:
state: absent
path: "{{ image_path_final }}"
when:
- not download_keep_remote_cache
- ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]
Added file and container image caching (#4828) * File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant. * When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching. * The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache * A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost. * Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009 * Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused. * Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml * All features of commit d6fd0d2acaec9f53e75d82db30411f96a5bf2cc9 by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching. Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical. Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.
2019-06-10 18:21:07 +00:00
tags:
- download