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docker: cache downloads during build

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j4n
2026-02-23 11:49:01 +01:00
parent d375512065
commit 97b309b12c
1 changed files with 28 additions and 15 deletions
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43
docker/chatmail_relay.dockerfile
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@@ -2,7 +2,9 @@ FROM jrei/systemd-debian:12 AS base
ENV LANG=en_US.UTF-8 ENV LANG=en_US.UTF-8
RUN echo 'APT::Install-Recommends "0";' > /etc/apt/apt.conf.d/01norecommend && \ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
--mount=type=cache,target=/var/lib/apt/lists,sharing=locked \
echo 'APT::Install-Recommends "0";' > /etc/apt/apt.conf.d/01norecommend && \
echo 'APT::Install-Suggests "0";' >> /etc/apt/apt.conf.d/01norecommend && \ echo 'APT::Install-Suggests "0";' >> /etc/apt/apt.conf.d/01norecommend && \
apt-get update && \ apt-get update && \
apt-get install -y \ apt-get install -y \
@@ -13,10 +15,11 @@ RUN echo 'APT::Install-Recommends "0";' > /etc/apt/apt.conf.d/01norecommend && \
apt-get install -y locales && \ apt-get install -y locales && \
sed -i -e "s/# $LANG.*/$LANG UTF-8/" /etc/locale.gen && \ sed -i -e "s/# $LANG.*/$LANG UTF-8/" /etc/locale.gen && \
dpkg-reconfigure --frontend=noninteractive locales && \ dpkg-reconfigure --frontend=noninteractive locales && \
update-locale LANG=$LANG \ update-locale LANG=$LANG
&& rm -rf /var/lib/apt/lists/*
RUN apt-get update && \ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
--mount=type=cache,target=/var/lib/apt/lists,sharing=locked \
apt-get update && \
apt-get install -y \ apt-get install -y \
git \ git \
python3 \ python3 \
@@ -36,24 +39,35 @@ RUN apt-get update && \
nginx \ nginx \
libnginx-mod-stream \ libnginx-mod-stream \
fcgiwrap \ fcgiwrap \
cron \ cron
&& rm -rf /var/lib/apt/lists/*
# --- Build-time: install cmdeploy venv and run install stage --- # --- Build-time: install cmdeploy venv and run install stage ---
# Editable install so importlib.resources reads directly from the source tree. # Editable install so importlib.resources reads directly from the source tree.
# On container start only "configure,activate" stages run. # On container start only "configure,activate" stages run.
COPY . /opt/chatmail/
# Copy dependency metadata first (changes rarely) so pip install layer is cached
COPY cmdeploy/pyproject.toml /opt/chatmail/cmdeploy/pyproject.toml
COPY chatmaild/pyproject.toml /opt/chatmail/chatmaild/pyproject.toml
# Dummy scaffolding so editable install can discover packages
RUN mkdir -p /opt/chatmail/cmdeploy/src/cmdeploy \
/opt/chatmail/chatmaild/src/chatmaild && \
touch /opt/chatmail/cmdeploy/src/cmdeploy/__init__.py \
/opt/chatmail/chatmaild/src/chatmaild/__init__.py
# Dummy git repo: .git/ is excluded from the build context (.dockerignore)
# but setuptools calls `git ls-files` when building the sdist.
WORKDIR /opt/chatmail WORKDIR /opt/chatmail
RUN --mount=type=cache,target=/root/.cache/pip \
git init -q && \
python3 -m venv /opt/cmdeploy && \
/opt/cmdeploy/bin/pip install -e chatmaild/ -e cmdeploy/
# Full source copy (editable install's .egg-link still points here)
COPY . /opt/chatmail/
RUN printf '[params]\nmail_domain = build.local\n' > /tmp/chatmail.ini RUN printf '[params]\nmail_domain = build.local\n' > /tmp/chatmail.ini
# Dummy git repo init: .git/ is excluded from the build context (.dockerignore)
# but setuptools calls `git ls-files` when building the sdist.
RUN git init -q && \
python3 -m venv /opt/cmdeploy && \
/opt/cmdeploy/bin/pip install --no-cache-dir \
-e chatmaild/ -e cmdeploy/
RUN CMDEPLOY_STAGES=install \ RUN CMDEPLOY_STAGES=install \
CHATMAIL_INI=/tmp/chatmail.ini \ CHATMAIL_INI=/tmp/chatmail.ini \
CHATMAIL_NOSYSCTL=True \ CHATMAIL_NOSYSCTL=True \
@@ -102,4 +116,3 @@ ENTRYPOINT ["/entrypoint.sh"]
CMD [ "--default-standard-output=journal+console", \ CMD [ "--default-standard-output=journal+console", \
"--default-standard-error=journal+console" ] "--default-standard-error=journal+console" ]