pavel/nats-scheduler
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pavel
2025-10-28 06:17:02 +02:00
parent 51f14e354a
commit 6d2c8776bd
1 changed files with 23 additions and 18 deletions
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@@ -1,21 +1,22 @@
FROM ubuntu:24.04
# Simpler base: Debian slim + Python + pip out of the box
FROM python:3.12-slim
ENV DEBIAN_FRONTEND=noninteractive
ENV APP_DIR=/opt/containers/nats-registration-listener
ENV DATA_DIR=${APP_DIR}/data
# venv path and ensure it’s first on PATH for runtime & build steps
ENV VENV_PATH=/opt/venv
ENV PATH=${VENV_PATH}/bin:${PATH}
ENV PATH=/usr/local/bin:$PATH
# Minimal deps + Python + venv + dos2unix for CRLF→LF
# Minimal tools we actually use:
# - tini: pid1
# - curl: optional for TLS_CA_URL
# - dos2unix: fix CRLF if committed from Windows
# (jq is optional; if you don't need it, remove it)
RUN apt-get update && apt-get install -y --no-install-recommends \
bash curl jq ca-certificates tini python3 python3-venv python3-pip dos2unix \
tini curl dos2unix \
&& rm -rf /var/lib/apt/lists/*
# Create a virtual environment and install python deps inside it
RUN python3 -m venv ${VENV_PATH} \
&& python -m pip install --no-cache-dir --upgrade pip \
&& python -m pip install --no-cache-dir --upgrade nats-py
# Python deps (no venv needed on this base image)
RUN python -m pip install --no-cache-dir --upgrade pip nats-py
# App payload (immutable inside image)
RUN mkdir -p ${APP_DIR}/app/bin
@@ -24,17 +25,21 @@ COPY files/entrypoint.sh /usr/local/bin/nats-registration-entrypoint
COPY files/healthcheck.sh /usr/local/bin/nats-registration-healthcheck
COPY files/nats_registration_listener.py /usr/local/bin/nats_registration_listener.py
# Normalize line endings & set exec bits (Windows-safe)
RUN dos2unix /usr/local/bin/nats-registration-entrypoint \
# Normalize line endings (CRLF/BOM safe) and set exec bits
RUN sed -i '1s/^\xEF\xBB\xBF//' /usr/local/bin/nats-registration-entrypoint && \
sed -i '1s/^\xEF\xBB\xBF//' /usr/local/bin/nats-registration-healthcheck && \
sed -i '1s/^\xEF\xBB\xBF//' /opt/containers/nats-registration-listener/app/bin/nats-registration-listener.sh && \
sed -i '1s/^\xEF\xBB\xBF//' /usr/local/bin/nats_registration_listener.py && \
dos2unix /usr/local/bin/nats-registration-entrypoint \
/usr/local/bin/nats-registration-healthcheck \
${APP_DIR}/app/bin/nats-registration-listener.sh \
/usr/local/bin/nats_registration_listener.py \
&& chmod +x /usr/local/bin/nats-registration-entrypoint \
/opt/containers/nats-registration-listener/app/bin/nats-registration-listener.sh \
/usr/local/bin/nats_registration_listener.py && \
chmod +x /usr/local/bin/nats-registration-entrypoint \
/usr/local/bin/nats-registration-healthcheck \
${APP_DIR}/app/bin/nats-registration-listener.sh
/opt/containers/nats-registration-listener/app/bin/nats-registration-listener.sh
WORKDIR ${APP_DIR}/app
# Use tini as PID1; entrypoint validates env and execs the main script
ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/nats-registration-entrypoint"]
# Run via bash explicitly to avoid any shebang weirdness
ENTRYPOINT ["/usr/bin/tini", "--", "/bin/bash", "-lc", "/usr/local/bin/nats-registration-entrypoint"]
CMD ["/opt/containers/nats-registration-listener/app/bin/nats-registration-listener.sh"]