𝗗𝗼𝗰𝗸𝗲𝗿 𝗮𝗻𝗱 𝗞𝘂𝗯𝗲𝗿𝗻𝗲𝘁𝗲𝘀 𝗳𝗼𝗿 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀

𝗗𝗼𝗰𝗸𝗲𝗿 𝗮𝗻𝗱 𝗞𝘂𝗯𝗲𝗿𝗻𝗲𝘁𝗲𝘀 𝗳𝗼𝗿 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀

Containers are the standard for modern apps. Backend and fullstack developers need these skills.

Docker gives you a set environment. A Dockerfile lists every dependency. New hires start in minutes. The environment from tests runs in production.

Keep your Dockerfiles simple:

• Use multi-stage builds.
• Remove compilers and dev packages.
• Remove source code from final images. Small images build fast. They deploy fast. They have fewer security risks.

Use Docker Compose for local work. Put your app, database, and cache in one file. Run one command to start your stack. Most teams do not need Kubernetes for local dev.

Use Kubernetes for multiple machines. It handles scaling and updates. It is hard to learn. It works best for production.

Learn these basics first:

• Pods
• Deployments
• Services
• ConfigMaps

Use Helm or Kustomize to manage settings. Raw YAML files are hard to manage as you grow. Templates stop you from duplicating files.

Use kind or Minikube on your laptop. These run a cluster with low memory use. Test your features before you deploy them.

Source: https://dev.to/therizwansaleem/docker-and-kubernetes-for-developers-a-practical-hands-on-guide-230j