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Slightly more secure and much smaller docker image #855

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24 changes: 4 additions & 20 deletions Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
# ------------------------------------------------------------------------------
# Builder Stage
# ------------------------------------------------------------------------------
FROM golang:1.25-trixie AS build
FROM golang:1.26-trixie AS build

# Set default build argument for CGO_ENABLED
ARG CGO_ENABLED=0
Expand All @@ -18,31 +18,15 @@ COPY pkg/ pkg/
COPY .git/ .
RUN make build

# ------------------------------------------------------------------------------
# Fetch signing key
# ------------------------------------------------------------------------------
FROM debian:trixie-slim AS keyring
ADD https://www.postgresql.org/media/keys/ACCC4CF8.asc keyring.asc
RUN apt-get update && \
apt-get install -qq --no-install-recommends gpg
RUN gpg -o keyring.pgp --dearmor keyring.asc

# ------------------------------------------------------------------------------
# Release Stage
# ------------------------------------------------------------------------------
FROM debian:trixie-slim

ARG keyring=/usr/share/keyrings/postgresql-archive-keyring.pgp
COPY --from=keyring /keyring.pgp $keyring
RUN . /etc/os-release && \
echo "deb [signed-by=${keyring}] http://apt.postgresql.org/pub/repos/apt/ ${VERSION_CODENAME}-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
apt-get update && \
apt-get install -qq --no-install-recommends ca-certificates openssl netcat-openbsd curl postgresql-client
FROM gcr.io/distroless/static-debian13:nonroot

COPY --from=build /build/pgweb /usr/bin/pgweb

RUN useradd --uid 1000 --no-create-home --shell /bin/false pgweb
USER pgweb
USER nonroot

EXPOSE 8081

ENTRYPOINT ["/usr/bin/pgweb", "--bind=0.0.0.0", "--listen=8081"]