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nextcloud/Containers/windmill/Dockerfile

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# syntax=docker/dockerfile:latest
# Stage 1: Current PostgreSQL server version is pinned to a full patch
# release so builds are reproducible and the exact version is auditable.
# (matches the Debian bookworm base used by windmill-labs/windmill)
FROM postgres:17.9-bookworm AS postgres-base
# Final stage: derive from the official Windmill image and bundle PostgreSQL
FROM ghcr.io/windmill-labs/windmill:1.691.1
USER root
ARG DEBIAN_FRONTEND=noninteractive
# Copy PostgreSQL server binaries, libraries, and utilities from the postgres stage
COPY --from=postgres-base /usr/lib/postgresql /usr/lib/postgresql
COPY --from=postgres-base /usr/share/postgresql /usr/share/postgresql
COPY --from=postgres-base /usr/bin/pg_dump \
/usr/bin/pg_dumpall \
/usr/bin/pg_restore \
/usr/bin/
# Install supervisor from standard Debian repos (remove broken external sources first)
# hadolint ignore=DL3008
RUN set -ex; \
rm -f \
/etc/apt/sources.list.d/nodesource.sources \
/etc/apt/sources.list.d/pgdg.list; \
apt-get update; \
apt-get upgrade -y; \
apt-get install -y --no-install-recommends \
ca-certificates \
supervisor \
tzdata \
netcat-openbsd; \
rm -rf /var/lib/apt/lists/*; \
update-ca-certificates; \
# Copy the CA bundle to a world-readable path so uid=1000 can access it.
# /etc/ssl/certs/ is persistently mode 700 in the base image's layer and
# cannot be chmod'd in a derived image, so we copy the regenerated bundle.
cp /etc/ssl/certs/ca-certificates.crt /etc/ssl/ca-bundle.crt; \
chmod 644 /etc/ssl/ca-bundle.crt; \
\
# The base image already ships a 'windmill' user/group at uid/gid 1000.
# Create the directories our services need and hand them to that user.
# /tmp/windmill/cache is intentionally excluded: the base image pre-creates
# it as 777 so any UID can write to it; a recursive chown on ~340 MB of
# pre-installed runtimes would create a huge and unnecessary image layer.
mkdir -p \
/var/lib/postgresql/data \
/var/lib/windmill-dump \
/var/run/postgresql \
/var/log/supervisord \
/var/run/supervisord; \
chown -R windmill:windmill \
/var/lib/postgresql \
/var/lib/windmill-dump \
/var/run/postgresql \
/var/log/supervisord \
/var/run/supervisord; \
chmod 1777 \
/var/run/postgresql \
/var/log/supervisord \
/var/run/supervisord; \
\
# Create symlinks so postgres tools are on PATH
ln -sf /usr/lib/postgresql/17/bin/postgres /usr/local/bin/postgres; \
ln -sf /usr/lib/postgresql/17/bin/initdb /usr/local/bin/initdb; \
ln -sf /usr/lib/postgresql/17/bin/pg_ctl /usr/local/bin/pg_ctl; \
ln -sf /usr/lib/postgresql/17/bin/pg_isready /usr/local/bin/pg_isready; \
\
# Record the current PostgreSQL major version so start.sh can detect when
# the bundled major version has changed and trigger an automatic dump/restore upgrade.
echo "17" > /etc/postgres-major-version; \
\
# Write a build-time marker so start.sh can detect image updates and
# clear the cache volume when a new image version is deployed.
date -u +%s > /etc/windmill-image-build-epoch
COPY --chmod=775 start.sh /start.sh
COPY --chmod=775 healthcheck.sh /healthcheck.sh
COPY --chmod=775 windmill-start.sh /windmill-start.sh
COPY --chmod=664 supervisord.conf /supervisord.conf
# Redirect writable tool dirs to the persistent cache volume so the
# container can run with a read-only root filesystem.
# HOME is already correct (/home/windmill) for the pre-existing uid=1000 user.
# WINDMILL_DIR is set to the cache volume so Windmill's logs/worker dirs
# are inside the volume and writable (Docker creates the volume mount-point
# parent /tmp/windmill as root:root, making /tmp/windmill/logs inaccessible
# for uid=1000 when /tmp is a tmpfs).
ENV UV_TOOL_BIN_DIR=/tmp/windmill/cache/uv/bin \
UV_TOOL_DIR=/tmp/windmill/cache/uv/tools \
WINDMILL_DIR=/tmp/windmill/cache \
SSL_CERT_FILE=/etc/ssl/ca-bundle.crt \
CURL_CA_BUNDLE=/etc/ssl/ca-bundle.crt \
REQUESTS_CA_BUNDLE=/etc/ssl/ca-bundle.crt \
NODE_EXTRA_CA_CERTS=/etc/ssl/ca-bundle.crt
VOLUME ["/var/lib/postgresql/data", "/var/lib/windmill-dump", "/tmp/windmill/cache"]
# Use the pre-existing windmill user (uid=1000) from the base image
USER 1000
EXPOSE 8000
ENTRYPOINT ["/start.sh"]
HEALTHCHECK CMD /healthcheck.sh
LABEL com.centurylinklabs.watchtower.enable="false" \
wud.watch="false" \
org.opencontainers.image.title="Windmill for Nextcloud AIO" \
org.opencontainers.image.description="Windmill workflow engine with bundled PostgreSQL for Nextcloud All-in-One" \
org.opencontainers.image.url="https://github.com/nextcloud/all-in-one" \
org.opencontainers.image.source="https://github.com/nextcloud/all-in-one" \
org.opencontainers.image.vendor="Nextcloud" \
org.opencontainers.image.documentation="https://github.com/nextcloud/all-in-one/blob/main/readme.md"