CODEWITHSUNDEEP
dockerdocker-compose
Thomas
Thomas

Reputation: 12107

How to update a container within a system started by docker compose

I have a whole system started with docker compose.

It is made of a few containers and also contains info regarding the connectivity.

For example:

librarian:
    image: autobot-librarian
    ports:
       - 4000:80
    depends_on:
       - mongodb
    links:
       - mongodb

In this case, this container can access mongodb.

I would like to be able to update the image of a single container and replace it on the fly, without shutting down the whole system.

I can stop a container, and restart it with a new image, but the connectivity established by docker-compose is not present anymore.

Is there a way around this?

Upvotes: 1

Views: 105

Answers (1)

Motakjuq
Motakjuq

Reputation: 2259

You can use docker-compose to manage one or more service at time. In this case, if you want to update one image you have to do:

docker-compose pull librarian

After that, if you want update the container:

docker-compose up -d librarian

This only restart one service and all the services that depend on it (defined in the docker-compose as depends_on).

Upvotes: 1

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