$€LOUD รีทวีตแล้ว
I wish someone had told me this before I started writing Dockerfiles.
A simple high-level approach every DevOps engineer should follow 👇
1️⃣ Understand the App
- Language, build tool, runtime, ports, env vars, volumes
2️⃣ Choose the Right Base Image
- Alpine • Slim • Distroless • Official Runtime
3️⃣ Use Multi-Stage Builds
- Build in one stage → Copy artifact to minimal runtime
4️⃣ Minimize Image Size
- Combine RUN commands • Remove cache • Use minimal base
5️⃣ Run as Non-Root
- Better security for production workloads
6️⃣ Never Store Secrets in Dockerfile
- Use build secrets or runtime environment variables
7️⃣ Test → Push → Deploy
- Test locally → Push to registry → Use in Kubernetes/CI
Small images. Secure containers. Production-ready deployments.
This is how experienced DevOps engineers think before writing a Dockerfile.
#DevOps #Docker
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