From d254f6c6606e6c7ced7b7726af7355e554f39b70 Mon Sep 17 00:00:00 2001
From: troogs <git@beging.de>
Date: Sat, 18 Jul 2026 18:21:58 +0200
Subject: [PATCH] Add Docker image publish workflow

---
 .gitea/workflows/docker-image.yml | 46 +++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 .gitea/workflows/docker-image.yml

diff --git a/.gitea/workflows/docker-image.yml b/.gitea/workflows/docker-image.yml
new file mode 100644
index 0000000..fda8c42
--- /dev/null
+++ b/.gitea/workflows/docker-image.yml
@@ -0,0 +1,46 @@
+name: Build And Push Docker Image
+
+on:
+  push:
+    tags:
+      - "image"
+  workflow_dispatch:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    env:
+      REGISTRY: git.beging.de
+      BASE_IMAGE: git.beging.de/troogs/cal-funnel
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Login to Gitea registry
+        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "${{ env.REGISTRY }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+
+      - name: Determine next timestamp tag
+        shell: bash
+        run: |
+          TODAY="$(date -u +%Y%m%d)"
+          i=1
+          while docker manifest inspect "${BASE_IMAGE}:${TODAY}-${i}" > /dev/null 2>&1; do
+            i=$((i + 1))
+          done
+
+          DATE_TAG="${TODAY}-${i}"
+          echo "DATE_TAG=${DATE_TAG}" >> "$GITHUB_ENV"
+          echo "Using image tag: ${DATE_TAG}"
+
+      - name: Build docker image
+        run: |
+          docker build \
+            -t "${{ env.BASE_IMAGE }}:latest" \
+            -t "${{ env.BASE_IMAGE }}:${{ env.DATE_TAG }}" \
+            .
+
+      - name: Push docker images
+        run: |
+          docker push "${{ env.BASE_IMAGE }}:latest"
+          docker push "${{ env.BASE_IMAGE }}:${{ env.DATE_TAG }}"
\ No newline at end of file