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Override Docker ENTRYPOINT so that PID 1 inside the container is correctly assigned #571

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7 changes: 6 additions & 1 deletion Dockerfile
Original file line number Diff line number Diff line change
Expand Up @@ -15,4 +15,9 @@ VOLUME ${ENKETO_SRC_DIR}/setup/docker/secrets

EXPOSE 8005

CMD ${ENKETO_SRC_DIR}/setup/docker/start.sh
# Override the base image's ENTRYPOINT instead of passing arguments to it using
# CMD, and use the "exec form" to avoid spawning an intermediary shell.
# NB: Docker will not expand environment variables like ENKETO_SRC_DIR within
# the ENTRYPOINT instruction; see
# https://docs.docker.com/engine/reference/builder/#environment-replacement
ENTRYPOINT ["/srv/src/enketo_express/setup/docker/start.sh"]
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