docker / docker-credential-helpers

Prerequisites

Ensure the following tools are installed and available in your environment:

  • Docker
  • Go (version 1.21.10 or later)
  • GNU Make

Building

The first step is to build the Docker images. The provided Dockerfile includes multiple stages to create binaries for Linux, Darwin (macOS), and Windows.

To start the build process, use the following Make command:

make build-linux

This command invokes the build-linux target in the Makefile, triggering the build process for the Linux platform.

For other platforms, you can execute these commands:

make build-darwin
make build-windows

Ensure that the TARGETOS environment variable is set appropriately before executing the build commands.

Testing

Before deployment, run the test suite to ensure everything is functioning as expected. Execute the following command:

make test

This will trigger the test target, which is defined within the Makefile. It compiles and runs the tests against the binaries produced.

Building the Release

Building a release artifact requires the release target of the Makefile. Execute:

make release

This command packages the binaries and prepares them for distribution.

Ensure you have the correct TARGETOS, TARGETARCH, and TARGETVARIANT set in your environment to specify the platform, architecture (e.g., amd64), and any variant if applicable.

Deployment

After completing the build and testing phases and successfully creating the release artifacts, the next step is deploying the binaries into your production environment. This process will vary depending on the infrastructure.

Example for Linux Deployment

  1. Transfer the binaries to your production server:
scp ./path/to/binary user@yourserver:/usr/local/bin/
  1. Set permissions to ensure the binaries are executable:
ssh user@yourserver 'chmod +x /usr/local/bin/docker-credential-pass'
ssh user@yourserver 'chmod +x /usr/local/bin/docker-credential-secretservice'
  1. Verify the installation by checking the binaries:
ssh user@yourserver '/usr/local/bin/docker-credential-pass version'
ssh user@yourserver '/usr/local/bin/docker-credential-secretservice version'

This confirms that the binaries are correctly installed and executable on your production server.

Example for Windows Deployment

  1. Transfer the binaries to your Windows server using any method (e.g., WinSCP, scp).

  2. Add the directory containing the binaries to your PATH environment variable, so they can be executed from any command prompt.

  3. Verify the installation by running:

docker-credential-wincred.exe version

This ensures that the wincred binary is accessible and operational.

Continuous Integration

In a production environment, it is beneficial to integrate the build and deployment process into a CI/CD pipeline. You can set up CI/CD using services like GitHub Actions, GitLab CI, or other CI/CD tools to automate building, testing, and deploying your credentials helper.

For example, a CI/CD configuration might include steps to:

  1. Build the Docker images.
  2. Run tests automatically after each commit.
  3. Deploy to the production server upon successful testing.
# Sample GitHub Actions workflow (ci.yml)
name: CI

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Build
        run: make build-linux

      - name: Test
        run: make test

      - name: Release
        run: make release

This basic CI configuration will enhance the reliability of your deployments and enable a more streamlined workflow.

Conclusion

Following these steps for production deployment will ensure that docker/docker-credential-helpers binaries are built, tested, and deployed efficiently across various platforms.

The information provided is based on the structure and content of the provided Dockerfile and Makefile.