What are some advanced commands I can use in a Dockerfile?
In a Dockerfile, you can use advanced commands like ARG, ONBUILD, and HEALTHCHECK to enhance your builds.
Can you explain how the ARG command works?
Sure! The ARG command defines a variable that users can pass at build-time to the Dockerfile. It allows for more dynamic builds.
What about the HEALTHCHECK command?
The HEALTHCHECK command allows you to specify a command that the Docker daemon will run to check if your container is still working properly.
Are there any best practices for using these commands?
Yes, it's best to keep your Dockerfile clean, use multi-stage builds for smaller images, and document your ARG variables for clarity.
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