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prevent-containers-from-running-on-startup.md

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Prevent Containers From Running On Startup

I have a bunch of docker containers managed by Docker Desktop. Some are related to projects I'm actively working on. Whereas many others are inactive projects.

When I restart my machine, regardless of which containers I had running or turned off, several of them are booted into a running state on startup. This is becaue their restart policy is set to always. That's fine for the project I'm actively working on, but the others I would like to be off by default.

I need to update each of their restart policies from always to no.

First, I need to figure out their container IDs:

$ docker ps --all
CONTAINER ID   IMAGE                    COMMAND                  CREATED         STATUS                       PORTS                    NAMES
eb7b40aeba2d   postgres:latest          "docker-entrypoint.s…"   3 months ago    Up 11 minutes                0.0.0.0:9875->5432/tcp   still-postgres-1
eb9ab2213f2b   postgres:latest          "docker-entrypoint.s…"   3 months ago    Exited (0) 11 minutes ago                             next-drizzle-migration-repro-app-postgres-1
ba792e185734   postgres:latest          "docker-entrypoint.s…"   4 months ago    Up 11 minutes                0.0.0.0:9876->5432/tcp   better_reads-postgres-1
3139f9beae76   postgres:latest          "docker-entrypoint.s…"   9 months ago    Exited (128) 7 months ago                             basic-next-prisma-postgres-1

Referencing the CONTAINER ID and NAMES columns, I'm able to then inspect each container and see the current RestartPolicy:

$ docker inspect eb9ab2213f2b | grep -A3 RestartPolicy
"RestartPolicy": {
    "Name": "always",
    "MaximumRetryCount": 0
},

I can then update the RestartPolicy to be no:

$ docker update --restart no eb9ab2213f2b

Inpsecting that container again, I can see the updated policy:

$ docker inspect eb9ab2213f2b | grep -A3 RestartPolicy
"RestartPolicy": {
    "Name": "no",
    "MaximumRetryCount": 0
},

Rinse and repeat for each of the offending containers.

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