Initial commit

Drone CI steps, Dockerfile for ENV arguments and README.md

.drone.yml

@@ -0,0 +1,37 @@
+kind: pipeline
+type: docker
+name: build-host-redirect-image
+
+steps:
+  - name: build-and-tag-host-image
+    image: docker:cli
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    commands:
+      - echo "Building redirect image on host Docker daemon..."
+      - docker build -t redirect:latest .
+      - |
+        if [ -n "$DRONE_COMMIT_SHA" ]; then
+          SHORT_SHA=$(echo $DRONE_COMMIT_SHA | cut -c1-7)
+          docker tag redirect:latest redirect:$SHORT_SHA
+          echo "Tagged redirect:$SHORT_SHA"
+        fi
+      - |
+        if [ -n "$DRONE_TAG" ]; then
+          docker tag redirect:latest redirect:$DRONE_TAG
+          echo "Tagged redirect:$DRONE_TAG"
+        fi
+      - echo "Build complete. Images registered on host Docker engine:"
+      - docker images | grep redirect || true
+
+volumes:
+  - name: dockersock
+    host:
+      path: /var/run/docker.sock
+
+trigger:
+  event:
+    - push
+    - tag
+