If you start a container which creates a new volume, as above, and the container has files or directories in the directory to be mounted (such as /app/ above), the directory’s contents are copied into the volume.
This keeps the node_modules that exist already in /app/ when we mount the current directory (.) into /app/.
This allows me to successfully run docker-compose up on a new and fresh machine. I have proof (from my old laptop I have at home) :point_down:
yarn install v1.19.2 [17/134]
warning package.json: No license field
warning No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.2.9: The platform "linux" is incompatible with this module.
info "fsevents@1.2.9" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
[4/4] Building fresh packages...
Done in 10.04s.
Removing intermediate container 481b7b1bfa38
---> 4120dfceb72d
Step 6/7 : EXPOSE 4000
---> Running in 4ddab5a19d86
Removing intermediate container 4ddab5a19d86
---> 0fdaa3b3f7e5
Step 7/7 : CMD ["bundle", "exec", "jekyll", "serve"]
---> Running in e95066dbd646
Removing intermediate container e95066dbd646
---> 77063c15bdee
Successfully built 77063c15bdee
Successfully tagged coopdevsgithubio_web:latest
Recreating 24cffb17d726_coopdevsgithubio_web_1 ... done
Attaching to coopdevsgithubio_web_1
web_1 | Configuration file: /app/_config.yml
web_1 | Source: /app
web_1 | Destination: /app/_site
web_1 | Incremental build: enabled
web_1 | Generating...
web_1 | Building site for default language: "ca" to: /app/_site
web_1 | Loading translation from file /app/_i18n/ca.yml
web_1 | Browserslist: caniuse-lite is outdated. Please run next command `yarn upgrade`
web_1 | Building site for language: "es" to: /app/_site/es
web_1 | Loading translation from file /app/_i18n/es.yml
web_1 | Build complete
web_1 | done in 3.438 seconds.
web_1 | Auto-regeneration: enabled for '/app'
web_1 | Server address: http://0.0.0.0:4000/
web_1 | Server running... press ctrl-c to stop.
web_1 | Regenerating: 1 file(s) changed at 2020-03-05 08:48:15
web_1 | jobs.html
web_1 | Building site for default language: "ca" to: /app/_site
web_1 | Building site for language: "es" to: /app/_site/es
web_1 | Build complete
web_1 | ...done in 0.236611118 seconds.
web_1 |
web_1 | Regenerating: 1 file(s) changed at 2020-03-05 08:48:15
web_1 | jobs.html
web_1 | Building site for default language: "ca" to: /app/_site
web_1 | Building site for language: "es" to: /app/_site/es
web_1 | Build complete
web_1 | ...done in 0.270110684 seconds.
Closes #104
From the docker docs:
This keeps the
node_modulesthat exist already in /app/ when we mount the current directory (.) into /app/.This allows me to successfully run
docker-compose upon a new and fresh machine. I have proof (from my old laptop I have at home) :point_down: