docker / go-metrics

Step 1: Setting up the Environment

To begin, ensure that you have Docker and Go installed on your machine. Verify your installations with the following commands:

docker --version
go version

Step 2: Building the Container Image

You will need to create a Dockerfile that includes the necessary configurations to build your Go metrics application. Below is an example Dockerfile specifically tailored for the Golang module github.com/docker/go-metrics.

FROM golang:1.19 AS builder

WORKDIR /app

COPY go.mod .
COPY go.sum .

# Use go mod to download dependencies
RUN go mod download

COPY . .

# Build the Go application
RUN go build -o go-metrics .

# Start a new stage from scratch
FROM alpine:latest

WORKDIR /root/

# Copy the binary from the builder stage
COPY --from=builder /app/go-metrics .

# Command to run the binary
CMD ["./go-metrics"]

Step 3: CI/CD Configuration

Assuming you are using GitHub Actions for CI/CD, create a .github/workflows/ci.yml file in your repository. This file will define the steps necessary to build and test your project.

name: CI

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Set up Go
      uses: actions/setup-go@v2
      with:
        go-version: '1.19'

    - name: Build Docker Image
      run: |
        docker build -t go-metrics .

    - name: Run Tests
      run: |
        docker run go-metrics go test ./...

Step 4: Deploy (if applicable)

In this example, the project does not currently include a specific deployment script. If deployment is needed, consider utilizing CD tools such as Jenkins, GitLab CI, or other preferred platforms. Next steps could include setting up deployment pipelines that will automatically push the Docker image to your desired platform once tests pass.

Next Steps

If CI/CD has not yet been set up in your project, consider taking the following steps:

  1. Define Your CI/CD Pipeline: Determine how your build and test processes should be defined.
  2. Choose a CI/CD Tool: Select a CI/CD tool that aligns with your team’s infrastructure preferences (e.g., GitHub Actions, Jenkins, GitLab).
  3. Create a Dockerfile: Formulate a Dockerfile that suits your application requirements.
  4. Integration: Integrate the Docker build and test commands into your CI/CD configuration.
  5. Set up Notifications: Add notifications for build successes and failures to keep the team informed.

By following these steps, you can establish a robust CI/CD workflow for the github.com/docker/go-metrics project, enhancing your development practices and maintaining code quality.

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