refactor of the entrypoint feature

Dockerfile

@@ -5,34 +5,32 @@ COPY ui ./
 RUN npm ci && \
     node_modules/.bin/ng build --prod
 
+
 FROM python:3.8-alpine
 
 WORKDIR /app
 
-COPY Pipfile* ./
+COPY Pipfile* docker-entrypoint.sh ./
 
-RUN apk add --update ffmpeg && \
+RUN chmod +x docker-entrypoint.sh && \
+    apk add --update ffmpeg coreutils shadow su-exec && \
     apk add --update --virtual .build-deps gcc g++ musl-dev && \
     pip install --no-cache-dir pipenv && \
     pipenv install --system --deploy --clear && \
     pip uninstall pipenv -y && \
-    apk add --update coreutils shadow su-exec && \
     apk del .build-deps && \
     rm -rf /var/cache/apk/*
 
-ADD docker-entrypoint.sh /opt/scripts/docker-entrypoint.sh
-RUN chmod +x /opt/scripts/docker-entrypoint.sh
-
 COPY favicon ./favicon
 COPY app ./app
 COPY --from=builder /metube/dist/metube ./ui/dist/metube
 
-ENV UID=0
+ENV UID=1000
-ENV GID=0
+ENV GID=1000
-ENV UMASK=000
+ENV UMASK=022
 
 ENV DOWNLOAD_DIR /downloads
 ENV STATE_DIR /downloads/.metube
 VOLUME /downloads
 EXPOSE 8081
-ENTRYPOINT [ "/opt/scripts/docker-entrypoint.sh" ]
+CMD [ "./docker-entrypoint.sh" ]

README.md

@@ -9,24 +9,11 @@ Web GUI for youtube-dl (using the [yt-dlp](https://github.com/yt-dlp/yt-dlp) for
 
 ## Run using Docker
 
-### New Mode(recommend)
-
 ```bash
-docker run -d -p 8081:8081 -v /path/to/downloads:/downloads -e UID=1001 -e GID=1001 -e UMASK=000 alexta69/metube
+docker run -d -p 8081:8081 -v /path/to/downloads:/downloads alexta69/metube
 ```
-
-***Warning, if you also set the `--user` parameter, the `UID` and `GID` environment variable will be invalid. And it will run in legacy mode.***
-
-### Legacy Mode(not recommend)
-
-```bash
-docker run -d -p 8081:8081 -v /path/to/downloads:/downloads --user 1001:1001 alexta69/metube
-```
-
 ## Run using docker-compose
 
-### New Mode(recommend)
-
 ```yaml
 version: "3"
 services:
@@ -34,28 +21,6 @@ services:
     image: alexta69/metube
     container_name: metube
     restart: unless-stopped
-    environment:
-      - UID=1001
-      - GID=1001
-      - UMASK=000
-    ports:
-      - "8081:8081"
-    volumes:
-      - /path/to/downloads:/downloads
-```
-
-***Warning, if you also set the `--user` parameter, the `UID` and `GID` environment variable will be invalid. And it will run in legacy mode.***
-
-### Legacy Mode(not recommend)
-
-```yaml
-version: "3"
-services:
-  metube:
-    image: alexta69/metube
-    container_name: metube
-    restart: unless-stopped
-    user: "1001:1001"
     ports:
       - "8081:8081"
     volumes:
@@ -66,6 +31,9 @@ services:
 
 Certain values can be set via environment variables, using the `-e` parameter on the docker command line, or the `environment:` section in docker-compose.
 
+* __UID__: user under which MeTube will run. Defaults to `1000`.
+* __GID__: group under which MeTube will run. Defaults to `1000`.
+* __UMASK__: umask value used by MeTube. Defaults to `022`.
 * __DOWNLOAD_DIR__: path to where the downloads will be saved. Defaults to `/downloads` in the docker image, and `.` otherwise.
 * __AUDIO_DOWNLOAD_DIR__: path to where audio-only downloads will be saved, if you wish to separate them from the video downloads. Defaults to the value of `DOWNLOAD_DIR`.
 * __STATE_DIR__: path to where the queue persistence files will be saved. Defaults to `/downloads/.metube` in the docker image, and `.` otherwise.

docker-entrypoint.sh

@@ -1,18 +1,19 @@
 #!/bin/sh
 
-echo "You are running with user `id -u`:`id -g`"
+echo "Setting umask to ${UMASK}"
+umask ${UMASK}
+echo "Creating download directory ${DOWNLOAD_DIR} and state directory ${STATE_DIR}"
+mkdir -p "${DOWNLOAD_DIR}" "${STATE_DIR}"
 
 if [ `id -u` -eq 0 ] && [ `id -g` -eq 0 ]; then
-    echo "Running in New Mode"
     if [ "${UID}" -eq 0 ]; then
-        echo "Warning, it is not recommended to run as root user, please check if you have set the UID environment variable"
+        echo "Warning: it is not recommended to run as root user, please check your setting of the UID environment variable"
     fi
-    echo "Setting umask to ${UMASK}"
+    echo "Changing ownership of download and state directories to ${UID}:${GID}"
-    umask ${UMASK}
-    mkdir -p "${DOWNLOAD_DIR}" "${STATE_DIR}"
     chown -R "${UID}":"${GID}" /app "${DOWNLOAD_DIR}" "${STATE_DIR}"
+    echo "Running MeTube as user ${UID}:${GID}"
     su-exec "${UID}":"${GID}" python3 app/main.py
 else
-    echo "Running in Legacy Mode"
+    echo "User set by docker; running MeTube as `id -u`:`id -g`"
     python3 app/main.py
 fi