Create named docker volume with docker-compose?

Question

I'm on docker version 1.11.2. I'm able to create named docker volumes:

docker volume create --name my-jenkins-volume 

Than I'm able to connect my container with the named-volume with the -v option:

docker run -d -u jenkins --name jenkins -p 50000:50000 -p 443:8443 -v my-jenkins-volume:/var/jenkins_home 

Is it possible to create this named volume in docker-compose?

Answer 1

I tried this solution and for me works

version: '3.1'  services:   alp:     image: alpine     volumes:         - my-jenkins-volume:/your/local/path     command: sleep 10000   volumes:     my-jenkins-volume:         external: false 

external true if you provide your volume from an external source, not directly from the docker-compose spec

Reference with the doc https://docs.docker.com/compose/compose-file/#volume-configuration-reference

Answer 2

Yes, it's possible. In fact, I think it's better to create it in the docker compose. Here is an example of one of my docker-compose.yml:

version: '2' services:    db:     image: mysql     restart: always     volumes:       - "wp-db:/var/lib/mysql:rw"  volumes:   wp-db: {} 

Here, the named volume is "wp-db" Then, if you want to use your volume in another docker-compose.yml file, you can using the "external" keyword:

volumes:     my-jenkins-volume:         external: true 

(note: this is in the top-level volume keyword, not in the service section)