add initial commit and build action

.gitea/workflows/action.yaml

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+name: Build JetKVM Cloud docker container
+env:
+  UPSTREAM_DIR: ./upstream
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "upstream.conf"
+
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+          working-directory: ${{ github.workspace }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup docker
+        uses: https://git.claeyscloud.com/david/gitea-actions/setup-docker@main
+      - name: Login to Gitea container registry
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: git.claeyscloud.com
+          username: nologin
+          password: ${{ secrets.PACKAGE_TOKEN }}
+      - name: Load upstream configuration
+        shell: bash
+        run: |
+          source upstream.conf
+      
+          echo "BRANCH=$BRANCH" >> "$GITHUB_ENV"
+          echo "COMMIT=$COMMIT" >> "$GITHUB_ENV"
+          echo "SHORT_COMMIT=${COMMIT:0:7}" >> "$GITHUB_ENV"
+      - name: Retrieve code
+        shell: bash
+        run: |
+           echo "Retrieving JetKVM cloud-api"
+           echo "Branch: $BRANCH"
+           echo "Commit: $COMMIT"
+           echo "Destination: $UPSTREAM_DIR"
+
+           git clone --branch "$BRANCH" https://github.com/jetkvm/cloud-api.git "$UPSTREAM_DIR"
+           cd "$UPSTREAM_DIR"
+           git checkout "$COMMIT"
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+            labels: |
+                org.opencontainers.image.documentation=https://git.claeyscloud.com/david/jetkvm-cloud/README.md
+            images: |
+                git.claeyscloud.com/david/jetkvm-cloud
+            tags: |
+                type=raw,value=${{ env.BRANCH }}
+                type=raw,value=${{ env.SHORT_COMMIT }}
+                type=raw,value=latest
+      - name: Build and push
+        uses: https://github.com/docker/build-push-action@v5
+          context: ${{ env.UPSTREAM_DIR }}
+          file: ${{ env.UPSTREAM_DIR }}/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}            
+          labels: ${{ steps.meta.outputs.labels }}

README.md

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+# JetKVM Cloud
+ 
+This repository provides prebuilt Docker images for the [JetKVM Cloud API](https://github.com/jetkvm/cloud-api).
+ 
+These images make it easy to self-host JetKVM Cloud without having to build the Docker image yourself.

upstream.config

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+BRANCH=main
+COMMIT=ad33c712a4516b2e4e9941a77d6ba79f8747b4c5