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Use configurable UID/GID with a non-root default #205

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fdbd406
update Dockerfile to set user and group IDs for runtime
oxdc Apr 17, 2026
7509aef
use entrypoint.sh and configurable PUID & PGID
oxdc Apr 19, 2026
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10 changes: 8 additions & 2 deletions Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -38,14 +38,20 @@ RUN cargo chef cook --release --target "$(cat /tmp/rust_target)"
COPY . .
RUN cargo install --locked --target "$(cat /tmp/rust_target)" --path .

FROM scratch
FROM alpine

RUN apk add --no-cache su-exec

COPY --from=builder /usr/local/cargo/bin/rustical /usr/local/bin/rustical
CMD ["/usr/local/bin/rustical"]
COPY --chmod=755 entrypoint.sh /entrypoint.sh

ENV RUSTICAL_DATA_STORE__SQLITE__DB_URL=/var/lib/rustical/db.sqlite3

LABEL org.opencontainers.image.authors="Lennart Kämmle github.com/lennart-k"
LABEL org.opencontainers.image.licenses="AGPL-3.0-or-later"
EXPOSE 4000

ENTRYPOINT ["/entrypoint.sh"]
CMD ["/usr/local/bin/rustical"]

HEALTHCHECK --interval=30s --timeout=30s --start-period=3s --retries=3 CMD ["/usr/local/bin/rustical", "health"]
23 changes: 23 additions & 0 deletions entrypoint.sh
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@@ -0,0 +1,23 @@
#!/bin/sh

PUID=${PUID:-1000}
PGID=${PGID:-1000}

if [ "$(id -u)" -ne 0 ]; then
exec "$@"
fi

if ! getent group rustical > /dev/null 2>&1; then
addgroup -g "$PGID" rustical
fi

if ! id rustical > /dev/null 2>&1; then
if ! getent passwd "$PUID" > /dev/null 2>&1; then
adduser -D -u "$PUID" -G rustical rustical
fi
fi

mkdir -p /var/lib/rustical
find /var/lib/rustical \( ! -user "$PUID" -o ! -group "$PGID" \) -exec chown "${PUID}:${PGID}" {} +

exec su-exec "$PUID:$PGID" "$@"