What are the best practices for caching in Docker?
To optimize Docker builds, you should leverage layer caching effectively. This includes ordering your Dockerfile commands from least to most frequently changing.
Can you explain how to structure my Dockerfile for better caching?
Sure! Start with the commands that change the least, like installing dependencies, and end with commands that change frequently, like copying your application code.
Are there any specific commands I should avoid to maintain cache efficiency?
Yes, avoid using commands that change frequently, like COPY
or ADD
, unless necessary. Instead, try to minimize changes to those layers.
What tools can help me analyze my Docker image layers?
You can use tools like dive
or docker-squash
to analyze and optimize your Docker image layers for better caching.
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