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ci(build): reuse the Docker build cache across runs

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This commit is contained in:
Julien Neuhart
2026-09-08 18:34:54 +02:00
parent 34b7b4845e
commit 06ed58b6e7
3 changed files with 95 additions and 3 deletions
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17
build/Dockerfile
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@@ -59,7 +59,14 @@ RUN go build -o gotenberg -ldflags "-s -w -X 'github.com/gotenberg/gotenberg/v8/
# ----------------------------------------------
FROM debian:13-slim AS custom-jre-stage
RUN apt-get update -qq \
# APT_SNAPSHOT busts every layer below it when CI rotates the value, weekly.
# Without it a persistent build cache turns the unpinned "apt-get upgrade" into
# a cache hit and the published image keeps shipping the package versions that
# were current when the cache was first populated.
ARG APT_SNAPSHOT=""
RUN echo "apt snapshot: $APT_SNAPSHOT" \
&& apt-get update -qq \
&& apt-get upgrade -yqq \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends default-jdk-headless binutils
@@ -114,9 +121,15 @@ FROM base-image-stage AS common-stage
ARG GOTENBERG_USER_GID=1001
ARG GOTENBERG_USER_UID=1001
# See the note on APT_SNAPSHOT in custom-jre-stage. Declaring it here covers
# every "apt-get upgrade" in the gotenberg, gotenberg-chromium and
# gotenberg-libreoffice targets too, since all three branch from this stage.
ARG APT_SNAPSHOT=""
# Create a non-root user.
# All processes in the Docker container will run with this dedicated user.
RUN groupadd --gid "$GOTENBERG_USER_GID" gotenberg \
RUN echo "apt snapshot: $APT_SNAPSHOT" \
&& groupadd --gid "$GOTENBERG_USER_GID" gotenberg \
&& useradd --uid "$GOTENBERG_USER_UID" --gid gotenberg --shell /bin/bash --home /home/gotenberg --no-create-home gotenberg \
&& mkdir /home/gotenberg \
&& chown gotenberg: /home/gotenberg