A snapshot is a complete backup of an environment, including all persistent data from running services and files stored in mounted volumes.
Snapshots and Restore¶
Snapshots can be created with the following command:
$ symfony env:snapshot:create
Triggering a snapshot causes a momentary pause in site availability so that all requests can complete, allowing the snapshot to be taken against a known consistent state. The total interruption is usually only 1-2 seconds and any requests during that time are held temporarily, not dropped.
Use snapshot IDs via
symfony env:snapshots to restore them:
$ symfony env:snapshots $ symfony env:snapshot:restore 92c9a4b2aa75422efb3d
It is strongly recommended to make a snapshot of the live environment before merging an environment to the live environment, or when increasing the storage space of a service.
No snapshots are triggered automatically. You can use the
env:snapshot:create command to automate snapshots, including from the
application container itself via a cron task:
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crons: snapshot: # everyday at 5AM spec: 0 5 * * * cmd: | # only snapshot the master environment, aka production if [ "$SYMFONY_BRANCH" = master ]; then croncape symfony snapshot:create --no-wait fi
For the command to work, set up an authentication token.
Do not schedule more than one snapshot a day to minimize data usage.
Snapshots are guaranteed to be kept for at least 7 days.
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.