Helpful tips for Docker

This article shows some helpful tips for Docker.

🐝 docker build

--build-arg

The ARG instruction lets Dockerfile authors define values that users can set at build-time using the –build-arg flag:

docker build --build-arg HTTP_PROXY=http://10.20.30.2:1234 .

🍣 Execute a command on Docker container

This is a procedure to execute a command like yarn run xxx:

docker build -t app .
docker run \
    --rm \
    --entrypoint /bin/bash \
    -e ENVIRONMENT=development \
    crawler-v2 \
    -c 'yarn run xxx'

🐡 References

• https://docs.docker.com/engine/reference/commandline/build/

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