True rootless image

docker/debian-base.dockerfile

@@ -3,8 +3,6 @@
 FROM node:16-buster-slim
 ARG TARGETPLATFORM
 
-WORKDIR /app
-
 # Install Curl
 # Install Apprise, add sqlite3 cli for debugging in the future, iputils-ping for ping, util-linux for setpriv
 # Stupid python3 and python3-pip actually install a lot of useless things into Debian, specify --no-install-recommends to skip them, make the base even smaller than alpine!

docker/dockerfile

@@ -1,27 +1,27 @@
 FROM louislam/uptime-kuma:base-debian AS build
+USER node
 WORKDIR /app
-
 ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1
-
-COPY . .
-RUN npm ci --production && \
-    chmod +x /app/extra/entrypoint.sh
+COPY --chown=node:node . .
+RUN npm ci --production
 
 
 FROM louislam/uptime-kuma:base-debian AS release
+USER node
 WORKDIR /app
 
 # Copy app files from build layer
-COPY --from=build /app /app
+COPY --chown=node:node --from=build /app /app
 
 EXPOSE 3001
 VOLUME ["/app/data"]
 HEALTHCHECK --interval=60s --timeout=30s --start-period=180s --retries=5 CMD node extra/healthcheck.js
-ENTRYPOINT ["/usr/bin/dumb-init", "--", "extra/entrypoint.sh"]
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 CMD ["node", "server/server.js"]
 
 
 FROM release AS nightly
+USER node
 RUN npm run mark-as-nightly
 
 # Build an image for testing pr

extra/entrypoint.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env sh
-
-# set -e Exit the script if an error happens
-set -e
-PUID=${PUID=0}
-PGID=${PGID=0}
-
-files_ownership () {
-    # -h Changes the ownership of an encountered symbolic link and not that of the file or directory pointed to by the symbolic link.
-    # -R Recursively descends the specified directories
-    # -c Like verbose but report only when a change is made
-    chown -hRc "$PUID":"$PGID" /app/data
-}
-
-echo "==> Performing startup jobs and maintenance tasks"
-files_ownership
-
-echo "==> Starting application with user $PUID group $PGID"
-
-# --clear-groups Clear supplementary groups.
-exec setpriv --reuid "$PUID" --regid "$PGID" --clear-groups "$@"