docker-compose - issue restarting single service

Question

I am using docker-compose for a development project. I have 6 services defined in my docker compose file. I have been using the below script to rebuild the images whenever I make a change.

#!/bin/bash
# file: rebuild.sh
docker-compose down
docker-compose build
docker-compose up

I am looking for a way to reduce the build time as building and restarting all the services seems unnecessary as I am usually only changing one module. I see in the docker-compose docs you can run commands for individual services by specifying the service name after e.g. docker-compose build myservice.

In another terminal window I tried docker-compose build myservice && docker-compose restart myservice while leaving the other ./rebuild.sh command open in the original terminal. In the ./rebuild.sh terminal window I see all the initialization messages being reprinted to the stdout so I know it is restarting that service but the code changes aren't there. What am I doing wrong? I just want to rebuild and restart a single service.

You rebuild the image to feed container with data? Why don’t you mount volumes instead? — Mike Doe
– Mike Doe, Commented Feb 12, 2019 at 18:47
I know about bind volumes where you can point to your source code directory but I for simple projects I just wanted to know if there was a simple way to rebuild/restart a single service. Trying not to get too complicated. — user1505520
– user1505520, Commented Feb 12, 2019 at 18:53
Did you think about use arguments in your rebuild script? Something like ./rebuild.sh myservice. If you want to do that you can use $1 variable to read the name of your service received as parameter. — Nico
– Nico, Commented Feb 12, 2019 at 18:58
The docker-compose up and down commands don't take a service name as an argument. That's why I was trying to use docker-compose restart. I also tried docker-compose stop/start but it's effectively the same as restart. — user1505520
– user1505520, Commented Feb 12, 2019 at 19:11
Try docker-compose up -d --force-recreate --build myservice . Note that -d is for Detached mode, -d is for force recreation even is your code did not change, -build is for build your images before starting and at least the name of your service. Read more here docs.docker.com/compose/reference/up — Nico
– Nico, Commented Feb 12, 2019 at 19:16

Nico · Accepted Answer · 2019-02-12 20:12:10Z

2

Try:

docker-compose up -d --force-recreate --build myservice

Note that: -d is for Detached mode, -force-recreate will recreate containers even is your code did not change, -build is for build your images before starting containers. At least the name of your service.

Take a look here.

edited Feb 12, 2019 at 20:12

answered Feb 12, 2019 at 19:24

Nico

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