Files
htop-web/docs/DEVELOPMENT.md
T
Liosha84andJunie f3e095dafc Add Gitea Actions CI/CD for automated Docker builds
- Add .gitea/workflows/docker.yml: builds and pushes Docker image on Git tags
  with semantic versioning (v0.1.0 → tags 0.1.0, 0.1, latest)
- Add .dockerignore to optimize Docker build context
- Document release process in docs/DEVELOPMENT.md
- Update CHANGELOG.md with v0.1.0 release and Unreleased CI/CD entry

Required Gitea secrets: REGISTRY_USERNAME, REGISTRY_PASSWORD

Co-authored-by: Junie <junie@jetbrains.com>
2026-10-28 23:27:29 +01:00

154 lines
3.9 KiB
Markdown

# Development
## Prerequisites
- Java 21
- Node.js and npm compatible with `frontend/package.json`
- Docker Engine and Docker Compose for container testing
## Build and test
### Option 1: Gradle build (requires Java 21 and Node.js)
From the repository root:
```bash
cd backend
./gradlew clean build
```
This invokes the configured Gradle build, including frontend build tasks.
### Option 2: Docker multi-stage build (requires only Docker)
Build the entire application inside Docker — no local Java or Node.js required:
```bash
docker build -t htop-web .
```
This uses a multi-stage Dockerfile with three stages:
1. **Frontend** — builds Angular with Node.js 22 Alpine
2. **Builder** — compiles the backend with Gradle and Java 21 JDK
3. **Runtime** — packages only the JAR and Java 21 JRE (~200 MB final image)
The Docker build is fully reproducible and does not depend on tools installed on the host machine.
## Frontend development
Frontend source code is located in `frontend/`.
Install dependencies using the lockfile:
```bash
cd frontend
npm ci
```
Run the frontend development server using the project's configured npm scripts:
```bash
npm start
```
If the project does not define a `start` script, inspect `frontend/package.json` and use its available script, such as `npm run`.
## Run the container
### With Docker Compose (recommended)
From the repository root:
```bash
docker compose up -d --build
docker compose logs -f htop-web
```
The `--build` flag triggers the multi-stage Docker build automatically.
### With Docker only
If you built the image manually:
```bash
docker run -d \
--name htop-web \
--pid host \
--read-only \
--security-opt no-new-privileges:true \
--tmpfs /tmp:noexec,nosuid,size=64m \
-v /proc:/host/proc:ro \
-v /sys:/host/sys:ro \
-v /etc/hostname:/host/etc/hostname:ro \
-v /etc/os-release:/host/etc/os-release:ro \
-v /var:/host/var:ro \
-v /home:/host/home:ro \
-v /opt:/host/opt:ro \
-v /tmp:/host/tmp:ro \
-v /srv:/host/srv:ro \
-v /usr:/host/usr:ro \
-p 8080:8080 \
htop-web
```
## Release process
### Prerequisites
- Gitea Actions runner must be configured and running.
- Repository secrets `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` must be set in **Settings → Secrets** of the Gitea repository. These credentials are used to authenticate with the Gitea Container Registry.
### Creating a release
1. **Update `CHANGELOG.md`** with changes for the new version.
2. **Commit and push** your changes:
```bash
git add -A
git commit -m "Prepare release v0.2.0"
git push origin master
```
3. **Create and push a Git tag** with Semantic Versioning:
```bash
git tag -a v0.2.0 -m "Release v0.2.0: new features and fixes"
git push origin v0.2.0
```
4. **Gitea Actions** will automatically:
- Build the Docker image using the multi-stage Dockerfile
- Tag it with the version (`0.2.0`), minor version (`0.2`), and `latest`
- Push all three tags to the Gitea Container Registry
### Docker image tags
Each release produces three Docker image tags:
| Tag | Example | Description |
|-----|---------|-------------|
| Full version | `gitea.jambotron.com/liosha84/htop-web:0.2.0` | Exact version, use in production |
| Minor version | `gitea.jambotron.com/liosha84/htop-web:0.2` | Latest patch of 0.2.x |
| Latest | `gitea.jambotron.com/liosha84/htop-web:latest` | Most recent stable release |
### Using a specific version in production
In `docker-compose.yml`, always pin to a specific version:
```yaml
services:
htop-web:
image: gitea.jambotron.com/liosha84/htop-web:0.2.0
```
Avoid using `:latest` in production — it makes rollbacks impossible and breaks reproducibility.
## Contribution guidelines
- Keep changes focused and reviewable.
- Do not commit generated build output or dependency directories.
- Do not commit credentials, private keys, or local environment files.
- Update documentation when build or runtime behavior changes.
- Run the build before submitting changes.