Leave full URLs in VIDEO_FILE untouched

.github/workflows/test.yml

@@ -172,6 +172,30 @@ jobs:
       - name: Stop custom container
         run: docker rm -f rickroll-custom
 
+      - name: Start container with a full URL as VIDEO_FILE
+        run: |
+          docker run -d --name rickroll-url -p 8080:8080 \
+            -e VIDEO_FILE=https://example.com/v.mp4 \
+            rickroll:test
+
+      - name: Wait for URL container to be healthy
+        run: |
+          for i in $(seq 1 30); do
+            docker exec rickroll-url curl -fsS http://localhost:9090/healthz && exit 0
+            sleep 1
+          done
+          docker logs rickroll-url
+          exit 1
+
+      - name: Check a full URL is left untouched
+        run: |
+          set -eu
+          html=$(curl -sS http://localhost:8080/some/random/path)
+          echo "$html" | grep -q 'source src="https://example.com/v.mp4"'
+
+      - name: Stop URL container
+        run: docker rm -f rickroll-url
+
       - name: Set up Node
         uses: actions/setup-node@v7
         with:

README.md

@@ -72,7 +72,7 @@ All tags are built from the same image - only the baked-in video resolution diff
 | WIDTH | CSS width of the video element. | 100% |
 | OBJECT_FIT | CSS `object-fit` value for the video (`cover`, `contain`, etc). | cover |
 | LOOP | Whether the video loops (`true`/`false`). | true |
-| VIDEO_FILE | Filename of the video to serve, relative to the web root. | video.mp4 |
+| VIDEO_FILE | Filename of the video to serve, relative to the web root. A full URL (`https://...`) is also accepted and used as-is. | video.mp4 |
 
 # Configuration example
 

scripts/index/80-index.sh

@@ -10,7 +10,10 @@ WIDTH="${WIDTH:-"100%"}"
 OBJECT_FIT="${OBJECT_FIT:-"cover"}"
 LOOP="${LOOP:-"true"}"
 VIDEO_FILE="${VIDEO_FILE:-"video.mp4"}"
-VIDEO_FILE="/${VIDEO_FILE#/}"
+case "$VIDEO_FILE" in
+    *://*) ;;
+    *) VIDEO_FILE="/${VIDEO_FILE#/}" ;;
+esac
 OVERLAY="${OVERLAY:-"random"}"
 
 LOOP_ATTR=""