Run a database migration command when deploying a Docker container to AWS
Solution 1
You need create entrypoint. This script runs at the container startup.
entrypoint.sh file:
#create or update db
./waitforit.sh <DB_HOST>:<DP_PORT> -t 30
php app/console doctrine:migrations:execute
# start apache
apache2-foreground
wait for it it is a script waited when database is started up
Solution 2
Just leaving this here for the next one that searches for this... ;-)
When using a recent version of Doctrine, there is a pretty handy parameter for this:
php bin/console doctrine:migrations:migrate --no-interaction --allow-no-migration
The "allow-no-migration" parameter instructs doctrine not to throw an exception, when there is nothing to do...
Solution 3
I do as follows:
docker-compose exec [containerID] ./app/console migrations:migrate --no-interaction
Fredrik
Updated on June 15, 2022Comments
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Fredrik almost 2 years
Please bear with me. Pretty new to Docker.
I'm deploying Docker containers (detached) to an AWS EC2 registry using CodeDeploy. On deploy, the following command is run after setting some environmental variables etc:
exec docker run -d ${PORTS} -v cache-${CACHE_VOLUME} --env-file $(dirname $0)/docker.env --tty "${IMAGE}:${TAG}"
The container runs an image located and tagged in EC2 Container Service. No problems so far.
Since this is a PHP application (specifically a Symfony2 application) I would normally need to issue the following command to execute database migrations on deployment:
php app/console doctrine:migrations:migrate --no-interaction
Now, is there any to run this command during "docker run..." while keeping the container running, or do I need to run another container specifically for this command?
Many thanks!
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Fredrik over 7 yearsBut how can the deployment script know the [containerId]? Or are you running it manually?
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enno.void over 7 yearsI do it manually. But i think u could do a "docker ps" in your deployment-script and grep the containerId you would apply to...
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eawenden over 7 yearsThis mixes two possible solutions.
docker-compose run [service]
would spin up a new docker container. You can also usedocker ps
to find out the container id of the running php container and usedocker exec [containerID] [migrationCommand]
to run the command inside the running container instead of spinning up a new one. -
yuklia about 6 years@mr.void but you can't do using Swarm mode
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Dennis de Best almost 5 yearsThanks, this was exactly what I needed.