Migrating to Container Stack
Container Stack is a fully-managed platform as a service that provides container hosting for web applications.
Before you Start
You will need:
- a container development environment (e.g. Docker Engine, Podman Desktop, Colima, etc.)
- a TechPass account
- a SHIP GitLab account
- a SEED-enabled device for access to CStack resources
Remember to sign up for and onboard to Container Stack (more details here (opens in a new tab)).
Steps
Containerisation
Preparing a container image from a NextJS application template is easy.
# Dockerfile
FROM --platform=linux/amd64 node:20-alpine as builder
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npx next build
FROM --platform=linux/amd64 node:20-alpine as runner
WORKDIR /app
COPY --from=builder --chown=node:node /app/package*.json ./
RUN npm install --omit=dev
COPY --from=builder --chown=node:node /app/.next ./.next
USER node
EXPOSE 3000
CMD ["npm", "run", "start"]Testing Containers Locally
# docker-compose.yaml
version: "3.8"
services:
next:
build: .
environment:
NEXTAUTH_SECRET: 1a
ROOT_USERNAME: root@example.com
ROOT_PASSWORD: hunter2
ports:
- "3000:3000"Adding Container Stack manifests
More information about Container Stack and its workflow can be found here (opens in a new tab).