feat: move codegen out of docker builder

.github/workflows/docker-image.yml

@@ -67,10 +67,6 @@ jobs:
         with:
           context: .
           push: true
-          build-args: |
-            DB_URL=jdbc:postgresql://localhost:5432/homepage
-            DB_USERNAME=postgres
-            DB_PASSWORD=postgres
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha

.gitignore

@@ -38,6 +38,10 @@ replay_pid*
 **/build/
 !**/src/**/build/
 
+# Allow generated code fragments for Docker builds
+!build/generated-src/
+!build/generated-resources/
+
 # Ignore Gradle GUI config
 gradle-app.setting
 

Dockerfile

@@ -1,13 +1,6 @@
 # --- Stage 1: Build the JAR ---
 FROM gradle:9.2.1-jdk21 AS build
 
-ARG DB_URL
-ARG DB_USERNAME
-ARG DB_PASSWORD
-ENV DB_URL=${DB_URL}
-ENV DB_USERNAME=${DB_USERNAME}
-ENV DB_PASSWORD=${DB_PASSWORD}
-
 # Set working dir
 WORKDIR /app
 
@@ -18,8 +11,12 @@ COPY --chown=gradle:gradle gradle ./gradle
 # Copy source code
 COPY --chown=gradle:gradle src ./src
 
-# Build the fat jar
+# Copy pre-generated code fragments
-RUN ./gradlew clean build --no-daemon
+COPY --chown=gradle:gradle build/generated-src ./build/generated-src
+COPY --chown=gradle:gradle build/generated-resources ./build/generated-resources
+
+# Build the fat jar without cleaning (preserves generated code)
+RUN ./gradlew build -x clean -x cleanGenerated -x jooqCodegen -x flywayMigrate -x precompileJte --no-daemon
 
 # --- Stage 2: Run the app ---
 FROM eclipse-temurin:21-jdk-alpine

build.gradle.kts

@@ -295,8 +295,4 @@ tasks.register("cleanGenerated") {
         delete(generatedSourcesDir)
         logger.lifecycle("✓ Cleaned generated code directories")
     }
-}
-
-tasks.named("clean") {
-    dependsOn("cleanGenerated")
 }