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Introduce proper init system (/bin/tini) to Docker container #22137

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merged 6 commits into from
Dec 8, 2020
Merged

Introduce proper init system (/bin/tini) to Docker container #22137

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ec6e438
Introduce proper init system (/bin/tini) to Docker container
mieciu Oct 26, 2020
18ed997
Add tini to elastic-agent Dockerfile template
mieciu Dec 4, 2020
eb72bd0
Hardcode SHA for tini binary by @jsoriano
mieciu Dec 7, 2020
340497d
Both Dockerfiles with hardcoded SHAs
mieciu Dec 7, 2020
c1c1a4e
/bin/tini -> /usr/bin/tini
mieciu Dec 7, 2020
1ffd828
Remove CMD from agent image
mieciu Dec 7, 2020
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12 changes: 11 additions & 1 deletion dev-tools/packaging/templates/docker/Dockerfile.elastic-agent.tmpl
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,16 @@ LABEL \
ENV ELASTIC_CONTAINER "true"
ENV PATH={{ $beatHome }}:$PATH

# Add an init process, check the checksum to make sure it's a match
RUN set -e ; \
TINI_VERSION='v0.19.0' ; \
TINI_BIN='tini-amd64' ; \
TINI_SHA256='93dcc18adc78c65a028a84799ecf8ad40c936fdfc5f2a57b1acda5a8117fa82c' ; \
curl --retry 8 -S -L -O "https://github.com/krallin/tini/releases/download/${TINI_VERSION}/${TINI_BIN}" ; \
echo "${TINI_SHA256} ${TINI_BIN}" | sha256sum -c - ; \
mv "${TINI_BIN}" /usr/bin/tini ; \
chmod +x /usr/bin/tini

COPY docker-entrypoint /usr/local/bin/docker-entrypoint
RUN chmod 755 /usr/local/bin/docker-entrypoint

Expand All @@ -90,4 +100,4 @@ EXPOSE {{ $port }}
{{- end }}

WORKDIR {{ $beatHome }}
ENTRYPOINT ["/usr/local/bin/docker-entrypoint"]
ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/docker-entrypoint"]
12 changes: 11 additions & 1 deletion dev-tools/packaging/templates/docker/Dockerfile.tmpl
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Expand Up @@ -60,6 +60,16 @@ LABEL \
ENV ELASTIC_CONTAINER "true"
ENV PATH={{ $beatHome }}:$PATH

# Add an init process, check the checksum to make sure it's a match
RUN set -e ; \
TINI_VERSION='v0.19.0' ; \
TINI_BIN='tini-amd64' ; \
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TINI_SHA256='93dcc18adc78c65a028a84799ecf8ad40c936fdfc5f2a57b1acda5a8117fa82c' ; \
curl --retry 8 -S -L -O "https://github.com/krallin/tini/releases/download/${TINI_VERSION}/${TINI_BIN}" ; \
echo "${TINI_SHA256} ${TINI_BIN}" | sha256sum -c - ; \
mv "${TINI_BIN}" /usr/bin/tini ; \
chmod +x /usr/bin/tini

COPY docker-entrypoint /usr/local/bin/docker-entrypoint
RUN chmod 755 /usr/local/bin/docker-entrypoint

Expand All @@ -80,5 +90,5 @@ EXPOSE {{ $port }}
{{- end }}

WORKDIR {{ $beatHome }}
ENTRYPOINT ["/usr/local/bin/docker-entrypoint"]
ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/docker-entrypoint"]
CMD ["-environment", "container"]