You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.7 KiB
YAML
122 lines
3.7 KiB
YAML
---
|
|
# tasks file for chatton.docker_backup
|
|
# https://docs.ansible.com/ansible/latest/collections/community/docker/docker_container_module.html#ansible-collections-community-docker-docker-container-module
|
|
# https://docs.docker.com/storage/volumes/#backup-restore-or-migrate-data-volumes
|
|
|
|
- name: Get container details
|
|
docker_container_info:
|
|
name: "{{ container_restore }}"
|
|
register: result
|
|
|
|
- name: Fail if container is not present
|
|
fail:
|
|
msg: Cannot restore volumes for a container when it does not exist. Ensure the container exists and try again.
|
|
when: result.exists == false
|
|
|
|
- debug: msg="{{ result }}"
|
|
|
|
- name: Extract only the volume mounts (not bind mounts)
|
|
set_fact: volume_mounts="{{ result.container.Mounts | selectattr("Type", "equalto", "volume")}}"
|
|
|
|
- debug: msg="{{ volume_mounts }}"
|
|
|
|
- name: Find relevant volume(s) in S3
|
|
amazon.aws.aws_s3:
|
|
bucket: "{{ aws_s3.bucket }}"
|
|
mode: list
|
|
region: "{{ aws_s3.region }}"
|
|
s3_url: "https://{{ aws_s3.s3_url }}"
|
|
prefix: "{{ item.Name }}/{{ item.Name }}"
|
|
aws_access_key: "{{ aws_s3.aws_access_key }}"
|
|
aws_secret_key: "{{ aws_s3.aws_secret_key }}"
|
|
register: s3_list_output
|
|
with_items: "{{ volume_mounts }}"
|
|
|
|
- debug: msg="{{ s3_list_output }}"
|
|
|
|
- name: Extract s3 keys for container
|
|
set_fact: container_s3_keys="{{ container_s3_keys | default([]) + [item.s3_keys | last] }}"
|
|
with_items: "{{ s3_list_output.results }}"
|
|
|
|
- debug: msg="{{ container_s3_keys }}"
|
|
|
|
- name: Create a directory for temporary backups if they do not exist
|
|
ansible.builtin.file:
|
|
path: "/tmp/{{ item.Name }}"
|
|
state: directory
|
|
mode: '0755'
|
|
with_items: "{{ volume_mounts }}"
|
|
|
|
- name: Download archives from S3
|
|
amazon.aws.aws_s3:
|
|
bucket: "{{ aws_s3.bucket }}"
|
|
object: "{{ item }}"
|
|
aws_access_key: "{{ aws_s3.aws_access_key }}"
|
|
aws_secret_key: "{{ aws_s3.aws_secret_key }}"
|
|
region: "{{ aws_s3.region }}"
|
|
s3_url: "https://{{ aws_s3.s3_url }}"
|
|
mode: get
|
|
dest: "/tmp/{{ item }}"
|
|
with_items: "{{ container_s3_keys }}"
|
|
register: get_out
|
|
|
|
- debug: msg="{{ get_out }}"
|
|
|
|
- set_fact:
|
|
volume_details: "{{ volume_details | default([]) + [ {'mount': item.0, 's3_key': item.1} ] }}"
|
|
with_together:
|
|
- "{{ volume_mounts }}"
|
|
- "{{ container_s3_keys }}"
|
|
|
|
- debug: msg="{{ volume_details }}"
|
|
|
|
- name: Stop a container
|
|
community.docker.docker_container:
|
|
name: "{{ container_restore }}"
|
|
state: stopped
|
|
|
|
- name: Ensure Volume
|
|
docker_volume:
|
|
name: "{{ item.mount.Name }}"
|
|
state: present
|
|
with_items: "{{ volume_details }}"
|
|
|
|
- name: Remove contents of volumes
|
|
community.docker.docker_container:
|
|
name: "restore-container-{{ item.mount.Name }}-{{ 10 | random }}"
|
|
image: ubuntu
|
|
command: "rm -rf ./* "
|
|
auto_remove: true
|
|
detach: false # block until this container exists.
|
|
state: started
|
|
# start inside the directory we want to wipe
|
|
working_dir: "{{ item.mount.Destination }}"
|
|
volumes:
|
|
- /tmp:/tmp
|
|
volumes_from:
|
|
- "{{ container_restore }}"
|
|
with_items: "{{ volume_details }}"
|
|
|
|
|
|
- name: Restore contents of volumes
|
|
community.docker.docker_container:
|
|
name: "restore-container-{{ item.mount.Name }}-{{ 10 | random }}"
|
|
image: ubuntu
|
|
# extract the tar into the volume.
|
|
command: "tar xvf /tmp/{{ item.s3_key }}"
|
|
auto_remove: true
|
|
detach: false # block until this container exists.
|
|
state: started
|
|
# the compressed volume contains the directories, so we start from the root
|
|
working_dir: "/"
|
|
volumes:
|
|
- /tmp:/tmp
|
|
volumes_from:
|
|
- "{{ container_restore }}"
|
|
with_items: "{{ volume_details }}"
|
|
|
|
- name: Start a container
|
|
community.docker.docker_container:
|
|
name: "{{ container_restore }}"
|
|
state: started
|