From 54a8583e47eff6dac4f9192dc1a96b4bfb96aa49 Mon Sep 17 00:00:00 2001
From: Philipp Hofer <philipp@hofer.link>
Date: Mon, 19 May 2025 18:30:51 +0200
Subject: [PATCH] Add CI to auto-build images on changes; Fixes #1 (#2)

Reviewed-on: https://git.hofer.link/philipp/ci-images/pulls/2
Co-authored-by: Philipp Hofer <philipp@hofer.link>
Co-committed-by: Philipp Hofer <philipp@hofer.link>
---
 .gitea/workflows/docker-build.yml | 73 +++++++++++++++++++++++++++++++
 rust-latest/Dockerfile            |  2 +-
 2 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 .gitea/workflows/docker-build.yml

diff --git a/.gitea/workflows/docker-build.yml b/.gitea/workflows/docker-build.yml
new file mode 100644
index 0000000..493f8a4
--- /dev/null
+++ b/.gitea/workflows/docker-build.yml
@@ -0,0 +1,73 @@
+name: Build and Push Docker Images
+
+on:
+  push:
+    paths:
+      - '*/Dockerfile'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    container: git.hofer.link/philipp/ci-images:rust-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # Install Docker for Debian
+      - name: Install Docker
+        run: |
+          if ! command -v docker &> /dev/null; then
+            echo "Installing Docker for Debian..."
+            apt-get update
+            apt-get install -y apt-transport-https ca-certificates curl gnupg lsb-release
+
+            # Add Docker's official GPG key
+            install -m 0755 -d /etc/apt/keyrings
+            curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+            chmod a+r /etc/apt/keyrings/docker.gpg
+
+            # Add the repository to sources list
+            echo \
+              "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
+              $(lsb_release -cs) stable" | \
+              tee /etc/apt/sources.list.d/docker.list > /dev/null
+
+            apt-get update
+            apt-get install -y docker-ce docker-ce-cli containerd.io
+          else
+            echo "Docker is already installed"
+          fi
+
+      # Determine which image to build
+      - name: Set image details
+        id: image_details
+        run: |
+          # Extract the directory of the changed Dockerfile
+          CHANGED_FILE="${{ github.event.commits[0].modified[0] }}"
+          if [[ $CHANGED_FILE == */Dockerfile ]]; then
+            IMAGE_PATH=$(dirname "$CHANGED_FILE")
+          else
+            IMAGE_PATH="rust-latest"  # Default
+          fi
+
+          # Set outputs
+          echo "image_path=$IMAGE_PATH" >> $GITHUB_OUTPUT
+          echo "image_name=$(basename $IMAGE_PATH)" >> $GITHUB_OUTPUT
+
+          echo "Building image from directory: $IMAGE_PATH"
+          echo "Image name: $(basename $IMAGE_PATH)"
+
+      - name: Login to Gitea Docker Registry
+        uses: docker/login-action@v2
+        with:
+          registry: git.hofer.link
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and Push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: ./${{ steps.image_details.outputs.image_path }}
+          push: true
+          tags: git.hofer.link/philipp/ci-images:${{ steps.image_details.outputs.image_name }}
+
diff --git a/rust-latest/Dockerfile b/rust-latest/Dockerfile
index 69866f9..8149b4a 100644
--- a/rust-latest/Dockerfile
+++ b/rust-latest/Dockerfile
@@ -5,7 +5,7 @@
 # 2. Tag the image: `docker tag <id> git.hofer.link/philipp/ci-images:rust-latest`
 # 3. Push the image: `docker push git.hofer.link/philipp/ci-images:rust-latest`
 
-FROM rust:1.86
+FROM rust:1.87
 
 RUN apt-get update && apt-get install -y sqlite3