Docker-Images/ci/java-builder/README.md

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# Java Builder — CI Image
Pre-baked build environment for KollectAI-ETL backend and plugin CI jobs.
## What's included
- Java 21 (Eclipse Temurin)
- Maven 3.9.9
- Pre-cached Maven dependencies (Spring Boot, Flink, MyBatis, etc.)
- Pre-installed `plugin-api` in local Maven repo
- OWASP NVD database snapshot
- Node.js + pnpm (via corepack)
- [buf](https://buf.build) CLI — for `buf lint` parity with pre-push
- ORAS CLI (Harbor artifact uploads)
- git, jq, curl
> **Note**: Backend Java protobuf codegen lives in the Maven build via
> `protobuf-maven-plugin`, not buf — so this image deliberately omits
> protoc plugins. For TypeScript proto codegen and frontend CI jobs use
> the [`frontend-builder`](../frontend-builder/) image.
## Build
```bash
docker build -t 192.168.1.72/kollect-tools/ci/java-builder:latest ci/java-builder/
docker push 192.168.1.72/kollect-tools/ci/java-builder:latest
```
### Build args
| Arg | Default | Description |
|-----|---------|-------------|
| `JAVA_VERSION` | `25` | Eclipse Temurin JDK version |
| `MAVEN_VERSION` | `3.9.14` | Maven version |
| `OWASP_DC_VERSION` | `12.1.1` | OWASP Dependency-Check version |
| `NODE_MAJOR` | `24` | Node.js major version |
| `PNPM_VERSION` | `10.15.0` | pnpm version (corepack-activated) |
| `BUF_VERSION` | `1.55.0` | buf CLI version |
| `ORAS_VERSION` | `1.2.2` | ORAS CLI version |
| `NVD_API_KEY` | (empty) | Optional NVD API key — speeds up the OWASP database update during image build |
## Usage in CI
```yaml
jobs:
test:
runs-on: ubuntu-latest
container:
image: 192.168.1.72/kollect-tools/ci/java-builder:latest
steps:
- uses: actions/checkout@v6
- run: ./mvnw -f backend/etl/pom.xml test -Dgroups=unit -q
```
## Maintenance
Rebuild weekly to keep the OWASP NVD database fresh:
```bash
docker build --no-cache -t 192.168.1.72/kollect-tools/ci/java-builder:latest ci/java-builder/
docker push 192.168.1.72/kollect-tools/ci/java-builder:latest
```
When `pom.xml` files change (new dependencies), rebuild to update the cached deps layer.