distribution / distribution

Overview

This documentation provides a step-by-step guide to understanding how Continuous Integration/Continuous Deployment (CI/CD) is automated within the Distribution project. It describes existing scripts that support this automation and outlines how they can be utilized.

Current Implementation Status

As of now, this project does not have a complete CI/CD setup. However, the groundwork has been laid, and several steps can be taken to establish a robust CI/CD pipeline.

Next Steps for CI/CD Setup

  1. Define CI/CD Requirements: Determine the specific requirements for your CI/CD process, including build, test, and deployment strategies.

  2. Implement CI Configuration: Create a CI configuration in your preferred CI/CD platform (e.g., GitHub Actions, GitLab CI, Jenkins).

  3. Docker Configuration: Utilize the existing Dockerfile for building and deploying Docker images.

  4. Testing Scripts: Implement testing scripts by leveraging the Makefile and Go testing framework.

  5. Integrate Notifications: Add notifications to trigger deployments on passing builds and successful image uploads to your Docker registry.

  6. Documentation and Training: Document the CI/CD process and provide training to team members.

Scripts Supporting CI/CD

Dockerfile

The Dockerfile plays a crucial role in setting up the environment where the application will run. Below is the relevant section of the Dockerfile indicating the configured exposed port and build steps:

# syntax=docker/dockerfile:1

ARG GO_VERSION=1.21.8
ARG ALPINE_VERSION=3.19
ARG XX_VERSION=1.2.1

FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
FROM --platform=$BUILDPLATFORM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS base
COPY --from=xx / /
RUN apk add --no-cache bash coreutils file git
ENV GO111MODULE=auto
ENV CGO_ENABLED=0
WORKDIR /src

# Build steps omitted for brevity

EXPOSE 5000
ENTRYPOINT ["registry"]
CMD ["serve", "/etc/docker/registry/config.yml"]

This defines a multi-stage build, installing dependencies, compiling the Go application, and configuring the entry point.

Makefile

The Makefile facilitates building and testing automation. It includes essential commands for CI/CD processes. Below are some notable targets:

.DEFAULT_GOAL: help

all: ## Build project
    @echo "Building project..."

lint: ## Run linters
    @echo "Running linters..."

test: ## Run unit tests
    @go test ./...

integration: ## Run integration tests
    @go test -tags=integration ./...

clean: ## Clean build artifacts
    rm -rf bin/*

.PHONY: all lint test integration clean

Testing and Coverage

To implement testing as part of your CI/CD process, the Makefile can be expanded to execute tests with coverage reporting:

test-coverage: ## Run unit tests and generate test coverage profiles
    @echo "Running unit tests with coverage"
    @go test -coverprofile=coverage.out ./...
    @go tool cover -html=coverage.out

This allows tests to be executed and coverage reports to be generated, which are essential for maintaining code quality in the CI/CD pipeline.

Conclusion

This documentation outlined the current status of CI/CD in the Distribution project and provided actionable steps for setting up CI/CD automation. The integration of the Dockerfile configuration and Makefile commands will facilitate the necessary building and testing processes.

While there is a significant amount of configuration and scripting yet to be conducted, the available resources and tools provide a strong foundation upon which to build an effective and efficient CI/CD system.

Source: CI/CD Automation Scripts Documentation