Merge pull request 'Develop' (#3) from develop into master

Reviewed-on: #3

.drone.yml

@@ -0,0 +1,34 @@
+kind: pipeline
+type: docker
+name: build-and-push
+
+trigger:
+  event:
+    - push
+    - pull_request
+
+steps:
+  - name: build-test
+    image: plugins/docker
+    settings:
+      dockerfile: Dockerfile
+      context: .
+      when:
+        event:
+          - pull_request
+
+  - name: build-and-push
+    image: plugins/docker
+    settings:
+      dockerfile: Dockerfile
+      context: .
+      registry: gitea.jambotron.com
+      repo: gitea.jambotron.com/liosha84/htop-web
+      tags: ${DRONE_COMMIT_SHA},main-latest
+      username:
+        from_secret: REGISTRY_USERNAME
+      password:
+        from_secret: REGISTRY_PASSWORD
+      when:
+        branch:
+          - main

.gitea/workflows/docker.yml

@@ -1,50 +0,0 @@
-name: Docker Build and Push
-
-on:
-  push:
-    tags:
-      - 'v*'
-
-env:
-  REGISTRY: gitea.jambotron.com
-  IMAGE_NAME: liosha84/htop-web
-
-jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    container:
-      image: catthehacker/ubuntu:act-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Extract version from tag
-        id: version
-        run: |
-          # Remove 'v' prefix from tag (e.g., v0.1.0 → 0.1.0)
-          VERSION=$(echo "${{ gitea.ref }}" | sed 's|refs/tags/v||')
-          echo "version=${VERSION}" >> "${GITEA_OUTPUT}"
-
-          # Extract major.minor for minor tag (e.g., 0.1.0 → 0.1)
-          MINOR=$(echo "${VERSION}" | sed 's/\.[0-9]*$//')
-          echo "minor=${MINOR}" >> "${GITEA_OUTPUT}"
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Login to Gitea Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ secrets.REGISTRY_USERNAME }}
-          password: ${{ secrets.REGISTRY_PASSWORD }}
-
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          push: true
-          tags: |
-            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.version }}
-            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.minor }}
-            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest

.idea/compiler.xml

@@ -1,5 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel>
+      <module name="backend" target="21" />
+      <module name="backend.main" target="21" />
+      <module name="backend.test" target="21" />
+    </bytecodeTargetLevel>
+  </component>
   <component name="JavacSettings">
     <option name="ADDITIONAL_OPTIONS_OVERRIDE">
       <module name="backend" options="-parameters" />

CHANGELOG.md

@@ -6,9 +6,16 @@ This project follows [Semantic Versioning](https://semver.org/). For more detail
 
 ## Unreleased
 
+- **Automatic releases on merge** — Drone now builds and pushes Docker images automatically when a Pull Request is merged into `main`. No manual Git tags are needed. Each merge produces two tags: `main-{commit-sha}` for traceability and `main-latest` for the most recent stable build.
+- **Git-flow workflow** — development happens in the `develop` branch. When code is ready for release, create a Pull Request from `develop` → `main`. Merging the PR triggers the automatic release.
+
+## v0.3.0
+
+- **CI/CD migrated to Drone** — replaced Gitea Actions with Drone CI/CD (`.drone.yml`). The Docker plugin `auto_tag` feature automatically creates Semantic Versioning tags (`0.3.0`, `0.3`) on Git tag pushes. Configure `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` secrets in the Gitea repository settings.
+
 ## v0.2.0
 
-- **CI/CD with Gitea Actions** — automated Docker image build and push on Git tags. Each release produces three tags: full version (`0.2.0`), minor version (`0.2`), and `latest`. Configure `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` secrets in Gitea repository settings.
+- **CI/CD with Drone** — automated Docker image build and push on Git tags using Drone CI/CD. Each release produces three tags: full version (`0.2.0`), minor version (`0.2`), and `latest`. Configure `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` secrets in Gitea repository settings.
 - **Docker build optimization** — added `.dockerignore` to exclude unnecessary files from the build context, reducing build time and image size.
 - **Release documentation** — added detailed release process guide in `docs/DEVELOPMENT.md` with Semantic Versioning workflow.
 

Dockerfile

@@ -23,7 +23,7 @@ FROM eclipse-temurin:21-jre
 WORKDIR /app
 COPY --from=builder /app/build/libs/backend-0.0.1-SNAPSHOT.jar app.jar
 
-RUN adduser --disabled-password --no-create-home appuser && \
+RUN adduser -D -g "" appuser && \
     chown appuser:appuser /app
 USER appuser
 

README.md

@@ -5,7 +5,7 @@
 **A self-hosted, browser-based system monitoring dashboard powered by Angular and Spring Boot.**
 
 htop-web packages its Angular frontend and Spring Boot WebFlux backend into a single Docker container, providing a web interface for viewing system metrics and process information.
-
+ 
 <p align="center">
   <img alt="Java 21" src="https://img.shields.io/badge/Java-21-orange?logo=openjdk&logoColor=white">
   <img alt="Spring Boot" src="https://img.shields.io/badge/Spring%20Boot-WebFlux-6DB33F?logo=springboot&logoColor=white">

backend/build.gradle

@@ -35,7 +35,11 @@ def frontendDir = file('../frontend')
 def frontendDistDir = file('../frontend/dist/frontend/browser')
 def springStaticDir = file('src/main/resources/static')
 
+// Skip frontend build tasks when building inside Docker (frontend already built in Stage 1)
+def skipFrontend = project.hasProperty('skipFrontend') || System.getenv('SKIP_FRONTEND') != null
+
 tasks.register('installFrontendDependencies', Exec) {
+	onlyIf { !skipFrontend }
 	workingDir frontendDir
 
 	inputs.file(file('../frontend/package.json'))
@@ -50,6 +54,7 @@ tasks.register('installFrontendDependencies', Exec) {
 }
 
 tasks.register('buildFrontend', Exec) {
+	onlyIf { !skipFrontend }
 	dependsOn 'installFrontendDependencies'
 	workingDir frontendDir
 
@@ -66,9 +71,6 @@ tasks.register('buildFrontend', Exec) {
 	}
 }
 
-// Skip frontend build tasks when building inside Docker (frontend already built in Stage 1)
-def skipFrontend = project.hasProperty('skipFrontend') || System.getenv('SKIP_FRONTEND') != null
-
 tasks.register('copyFrontend', Copy) {
 	onlyIf { !skipFrontend }
 	dependsOn 'buildFrontend'

docs/DEVELOPMENT.md

@@ -93,11 +93,26 @@ docker run -d \
 
 ## Release process
 
+### Workflow overview
+
+The project uses a **Git-flow** workflow with automatic releases:
+
+1. All development happens in the **`develop`** branch.
+2. When code is ready for release, create a **Pull Request** from `develop` → `main`.
+3. **Merge the PR** into `main` — this triggers an automatic release.
+4. **Drone** builds the Docker image and pushes it to the Gitea Container Registry.
+
+**No manual Git tags are needed** — merging into `main` is the release.
+
+```
+develop → PR → merge into main → Drone builds → Docker image pushed
+```
+
 ### Prerequisites
 
-- Gitea Actions runner must be configured and running.
+- Drone CI/CD runner must be configured and running at `drone.jambotron.com`.
 - Gitea Container Registry must be enabled on the server.
-- Repository secrets `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` must be set in the Gitea repository.
+- Repository secrets `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` must be set in Drone.
 
 ### Enabling Container Registry on Gitea server
 
@@ -134,6 +149,30 @@ sudo systemctl restart gitea
 
 **4. Verify** that the registry is working by visiting `https://gitea.jambotron.com/user/packages` — you should see a "Packages" tab.
 
+### Configuring Drone CI/CD
+
+The repository uses **Drone** for CI/CD. The configuration file `.drone.yml` is already included in the repository. Drone is hosted at a separate domain: `drone.jambotron.com`.
+
+**1. Log in to Drone.**
+
+Open `https://drone.jambotron.com` and sign in with your Gitea account.
+
+**2. Activate the repository in Drone.**
+
+After logging in, find `Liosha84/htop-web` in the repository list and click **Activate**.
+
+**3. Configure Drone secrets.**
+
+In Drone, open the repository and go to **Settings → Secrets**. Add two secrets:
+
+**First secret:**
+- **Name:** `REGISTRY_USERNAME`
+- **Value:** `Liosha84` (your Gitea username)
+
+**Second secret:**
+- **Name:** `REGISTRY_PASSWORD`
+- **Value:** paste the Access Token with `write:package` and `read:package` scopes.
+
 ### Creating an Access Token for CI/CD
 
 The CI/CD workflow cannot use your account password. You need a Personal Access Token with package permissions:
@@ -150,66 +189,50 @@ The CI/CD workflow cannot use your account password. You need a Personal Access
 7. Click **Generate**.
 8. **Copy the token** — it will be shown only once! Save it securely.
 
-### Configuring repository secrets
-
-1. Open the repository: `https://gitea.jambotron.com/Liosha84/htop-web`.
-2. Go to **Settings** (tab at the top).
-3. In the left menu: **Secrets** (or **Variables and Secrets → Secrets**).
-4. Click **Add secret**.
-
-**First secret:**
-- **Name:** `REGISTRY_USERNAME`
-- **Value:** `Liosha84` (your Gitea username)
-
-**Second secret:**
-- **Name:** `REGISTRY_PASSWORD`
-- **Value:** paste the Access Token you created in the previous step.
-
 ### Creating a release
 
-1. **Update `CHANGELOG.md`** with changes for the new version.
+1. **Update `CHANGELOG.md`** with changes for the new version in the `develop` branch.
 
-2. **Commit and push** your changes:
+2. **Commit and push** your changes to `develop`:
 
    ```bash
+   git checkout develop
    git add -A
-   git commit -m "Prepare release v0.2.0"
+   git commit -m "Feature: new functionality"
-   git push origin master
+   git push origin develop
    ```
 
-3. **Create and push a Git tag** with Semantic Versioning:
+3. **Create a Pull Request** from `develop` → `main`:
 
-   ```bash
+   Open `https://gitea.jambotron.com/jambotron_gang/htop-web/compare/develop...main` and click **Create Pull Request**.
-   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:
+4. **Merge the PR** into `main`.
+
+5. **Drone** 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`
+   - Tag it with the short commit SHA (e.g., `abc1234`) and `main-latest`
-   - Push all three tags to the Gitea Container Registry
+   - Push both tags to the Gitea Container Registry
 
 ### Docker image tags
 
-Each release produces three Docker image tags:
+Each merge into `main` produces two Docker image tags:
 
 | Tag | Example | Description |
 |-----|---------|-------------|
-| Full version | `gitea.jambotron.com/liosha84/htop-web:0.2.0` | Exact version, use in production |
+| Commit SHA | `gitea.jambotron.com/liosha84/htop-web:abc1234` | Exact commit, use for reproducibility |
-| Minor version | `gitea.jambotron.com/liosha84/htop-web:0.2` | Latest patch of 0.2.x |
+| Main latest | `gitea.jambotron.com/liosha84/htop-web:main-latest` | Most recent merge into main |
-| 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:
+In `docker-compose.yml`, pin to a specific commit SHA:
 
 ```yaml
 services:
   htop-web:
-    image: gitea.jambotron.com/liosha84/htop-web:0.2.0
+    image: gitea.jambotron.com/liosha84/htop-web:abc1234
 ```
 
-Avoid using `:latest` in production — it makes rollbacks impossible and breaks reproducibility.
+Use `main-latest` for development/testing environments. For production, always use the commit SHA tag so you can roll back to a specific version.
 
 ## Contribution guidelines