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Docker from your first container to a Compose file you can explain. Start here if you have never run one.

Any category Programming21 Python 4 JavaScript 6 TypeScript 1 SQL 6 HTML and CSS 4 DevOps3 Docker 3
Any topics Deployment and Containers 11 Performance Optimization 3 Security 5 Testing and Debugging 1
Any level Advanced 3
Docker Performance Optimization Advanced Clear filters 3 results
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Cut Rebuild Time With a BuildKit Cache Mount

Add a BuildKit cache mount to pip install so a changed requirements file downloads only the new packages. After this, a dependency change no longer means downloading everything again.

4 min read
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Multi-Stage Node or Go Image Under 50 MB

Build a Go service in a multi-stage Dockerfile and ship it in an image well under 50 MB, with a non-root user and a health check. After this, you know why Go gets that small and Node does not.

4 min read
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Cap CPU and Memory So One Container Can't Starve the Host

Set CPU and memory limits, watch them work, change them on a running container and set them in Compose. After this, one busy container cannot take the whole machine.

4 min read