Detailed tutorial on Docker optimization for Linux system.

The following is a detailed tutorial on Docker optimization under Linux system:

1. Use a suitable base image:

   • Choose a lightweight base image, such as Alpine Linux, to reduce image size and startup time.
   • Avoid using excessively large or unnecessary base images to reduce resource consumption.

2. Optimize Docker image construction:

   • Use multi-stage builds in the Dockerfile to reduce the size of the final image.
   • Minimize the hierarchy in the build process and merge multiple operations into a single RUN command.
   • Clean unnecessary build artifacts and temporary files to reduce image size.

3. Configuring the Docker daemon:

   • Adjust the resource limits of the Docker daemon, such as memory and CPU limits.
   • Configure the log level of the Docker daemon to avoid excessive log output.

4. Optimize container resource management:

   • Allocate appropriate resources to the container, such as memory and CPU limits.
   • Use resource limits and container affinity to avoid resource competition between containers.
   • Use Docker's resource scheduler (such as Swarm or Kubernetes) to balance resource allocation and scheduling of containers.

5. Configure container network:

   • Avoid too many network hops and use Host network mode or shared network namespace to improve network performance.
   • Properly configure the port mapping of the container to avoid port conflicts and resource waste.

6. Monitoring and Tuning:

   • Use Docker’s built-in monitoring tools, such as
     docker stats and
     docker eventsTo monitor the resource usage and events of the container.
   • Use third-party tools (such as cAdvisor, Prometheus) to monitor and collect performance indicators of Docker containers in real time.

7. Regularly clean up useless containers and images:

   • Delete containers and images that are no longer used to free up disk space.
   • Use scheduled tasks or scripts to regularly clean up useless containers and images.

Docker optimization is a complex process that needs to be adjusted based on the application and server environment. Always back up the configuration files and perform performance testing before making any changes.

Hope this tutorial is helpful to you. If you have any questions, please feel free to ask.

The above is the detailed content of Detailed tutorial on Docker optimization for Linux system.. For more information, please follow other related articles on the PHP Chinese website!