- Understand the concept of multi-stage Docker builds and the importance of lightweight images.
- Docker's multi-stage builds allow you to split your Docker file into two parts, with separate stages for building and executing the application.
- Using multi-stage Docker builds can significantly reduce the image size.
- Multi-stage Docker build reduces image size to 150 MB.
- Distroless images provide higher security and reduce container image size.
- Demonstration of multi-stage Docker build using golang
- The concept of multi-stage Docker builds reduces the image size significantly
- Using multi-stage builds and digitalized images in Docker can significantly reduce the size of container images and improve security.
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Understand the concept of multi-stage Docker builds and the importance of lightweight images.
- Multi-stage Docker builds help in efficiently building Docker images by separating the build process into multiple stages.
- Using lightweight images that only contain the necessary runtime dependencies improves the efficiency and reduces the size of the final Docker image.
Docker's multi-stage builds allow you to split your Docker file into two parts, with separate stages for building and executing the application.
- In the first part, you install all the dependency packages using the Ubuntu base image.
- In the second part, you use a minimal image with the required runtime environment and copy the binary artifact from the first stage.
Using multi-stage Docker builds can significantly reduce the image size.
- In multi-stage Docker builds, only the necessary content is included in the final image, resulting in a smaller size.
- This advantage is especially beneficial for applications with multiple components, as it avoids the need to install all dependencies in a single image.
Multi-stage Docker build reduces image size to 150 MB.
- The main point is that multi-stage Docker build reduces the image size from 1 GB to 150 MB.
- In a multi-stage Docker build, you can have multiple stages depending on your application.
- In each stage, you can focus on building different components such as frontend and backend.
- The final stage will have minimalistic image with only runtime environments.
- A digitalized image is a minimalistic or lightweight Docker image with only the necessary runtime environments.
Distroless images provide higher security and reduce container image size.
- Using distrosless images eliminates vulnerabilities found in other runtime images.
- Digitalized images offer the highest level of security since they only contain necessary runtimes.
- Multi-stage Docker builds with statically typed languages like Golang provide additional security benefits.
Demonstration of multi-stage Docker build using golang
- This repository provides an example of a multi-stage Docker build.
- The main reason for choosing golang is explained.
The concept of multi-stage Docker builds reduces the image size significantly
- By using a multi-stage build, we can split the Dockerfile into different stages
- The first stage is dedicated to the build steps, using an Ubuntu base image
- The final stage uses a minimalistic distro-less image called scratch
- This approach can greatly reduce the size of the Docker image
Using multi-stage builds and digitalized images in Docker can significantly reduce the size of container images and improve security.
- Multi-stage builds help reduce the size of Docker images by executing specific stages in the build process.
- Digitalized images can further reduce the size of the image and enhance security.
- To find digitalized images, search for the GitHub repository for distroless images.
- In the repository, you will find folders for different languages or technologies, and each folder contains the location of the digitalized images.
- To use a digitalized image, replace the base image in your Docker file with the appropriate digitalized image.
- Using multi-stage builds and digitalized images can reduce image sizes by up to 800 times.
- This approach also improves the security of the containers.
- Multi-stage builds and digitalized images are the future of containerization.
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