github.com/docker/libcompose@v0.4.1-0.20210616120443-2a046c0bdbf2/config/testdata/volumes-definition.v2.yml (about)

     1  version: "2"
     2  volumes:
     3    volume1:
     4      driver: foo
     5    volume2:
     6      driver: bar
     7      driver_opts:
     8        foo: "bar"
     9        baz: ""
    10    volume3:
    11      external: true
    12    volume4:
    13      external:
    14        name: name-of-volume