CI: simplified workflow with pre-built CI image

.gitea/workflows/deploy.yml

@@ -15,6 +15,9 @@ jobs:
           git clone http://172.17.0.1:3000/kurihada/auth-backend.git .
           git checkout ${{ github.sha }}
 
+      - name: Build with Maven
+        run: mvn clean install -Dmaven.test.skip=true
+
       - name: Build Docker image
         run: docker build -t auth-backend:latest .
 

Dockerfile

@@ -1,17 +1,7 @@
-# Stage 1: Build with Maven
-FROM openjdk:21 AS builder
-
-WORKDIR /app
-COPY pom.xml .
-COPY src ./src
-
-RUN apt-get update && apt-get install -y maven && mvn clean install -Dmaven.test.skip=true
-
-# Stage 2: Runtime
 FROM openjdk:21
 
 WORKDIR /app
-COPY --from=builder /app/target/auth-backend-1.0.0.jar /app/
+COPY target/auth-backend-1.0.0.jar /app/
 
 EXPOSE 9001