Docker container package

Prepare Dockerfile

Dockerfile for nextjs as example, follows this nextjs issue to fix in later version.

# Stage 1: Build the application
FROM node:18-alpine as builder

# Set the working directory
WORKDIR /app

# Set environment variables
ENV NODE_ENV production

# Copy source code
COPY ./ ./

# Install and build
RUN yarn && yarn build

# Stage 2: Create the final image
FROM node:18-alpine

# Set the working directory
WORKDIR /app

# Copy only necessary files from the builder stage
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/.next/standalone ./app
COPY --from=builder /app/public ./app/public
COPY --from=builder /app/.next/static ./app/.next/static

# Link package to github repo
ARG repo
LABEL org.opencontainers.image.source https://github.com/${repo}

# Expose port 3000
EXPOSE 3000

# set hostname to localhost
ENV HOSTNAME "0.0.0.0"

# CMD to start the application
CMD ["node", "app/server.js"]
  

.dockerignore

/node_modules

.env.local
.env.development.local
.env.test.local
.env.production.local
  

next.config.js

module.exports = {
  output: 'standalone',
}
  

Deploy from local

Get your ${PAT} from https://github.com/settings/tokens with write:packages permission.

docker login --username ${username} --password ${PAT} ghcr.io
  

Build image

docker build . --build-arg repo=${username}/${reponame} -t ghcr.io/${username}/${reponame}:${version} --no-cache
  

Push image

docker push ghcr.io/${username}/${reponame}
  

Test Image

Logout

docker logout

Remove existed image.

> docker images

REPOSITORY                        TAG           IMAGE ID       CREATED             SIZE
ghcr.io/${username}/${reponame}   latest        14740a153484   9 minutes ago       511MB

> docker image rm 1474

Run container

docker run -d -p 3000:3000 ghcr.io/${username}/${reponame}:${version}
  

Deploy from Github CI

Add Write Package Permission PAT To Repo Secrets

Add your PAT at https://github.com/${username}/${reponame}/settings/secrets/actions and named it WRITE_PACKAGE_TOKEN.

Github CI Yml

Add .github\workflows\container.yml to deploy image when push a tag.

name: Publish package to GitHub Packages
on:
  push:
    tags:
      - '*'
jobs:
  publish-package:
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      - uses: actions/checkout@v3
      - run: |
          docker login --username $ --password $ ghcr.io
          docker build . --build-arg repo=$ -t ghcr.io/$:$ --no-cache
          docker push ghcr.io/$:$
          docker tag ghcr.io/$:$ ghcr.io/$:latest
          docker push ghcr.io/$:latest
  

notes

master