Frederik Ring
c3daeacecb
* Query for labeled services as well * Try scaling down services * Scale services back up * Use progress tool from Docker CLI * In test, label both services * Clean up error and log messages * Document scale-up/down approach in docs * Downgrade Docker CLI to match client * Document services stats * Do not rely on PreviousSpec for storing desired replica count * Log warnings from Docker when updating services * Check whether container and service labels collide * Document script behavior on label collision * Add additional check if all containers have been removed * Scale services concurrently * Move docker interaction code into own file * Factor out code for service updating * Time out after five minutes of not reaching desired container count * Inline handling of in-swarm container level restart * Timer is more suitable for timeout race * Timeout when scaling down services should be configurable * Choose better filename * Reflect changes in naming * Rename and deprecate BACKUP_STOP_CONTAINER_LABEL * Improve logging * Further simplify logging
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| title | layout | parent | nav_order |
|---|---|---|---|
| Stop containers during backup | default | How Tos | 1 |
Stop containers during backup
{: .note } In case you are running Docker in Swarm mode, dedicated documentation on service and container restart applies.
In many cases, it will be desirable to stop the services that are consuming the volume you want to backup in order to ensure data integrity.
This image can automatically stop and restart containers and services.
By default, any container that is labeled docker-volume-backup.stop-during-backup=true will be stopped before the backup is being taken and restarted once it has finished.
In case you need more fine grained control about which containers should be stopped (e.g. when backing up multiple volumes on different schedules), you can set the BACKUP_STOP_DURING_BACKUP_LABEL environment variable and then use the same value for labeling:
version: '3'
services:
app:
# definition for app ...
labels:
- docker-volume-backup.stop-during-backup=service1
backup:
image: offen/docker-volume-backup:v2
environment:
BACKUP_STOP_DURING_BACKUP_LABEL: service1
volumes:
- data:/backup/my-app-backup:ro
- /var/run/docker.sock:/var/run/docker.sock:ro
volumes:
data: