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Adds docker entrypoint that will check/warn for missing configurations #31

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merged 2 commits into from
Apr 11, 2024
Merged

Adds docker entrypoint that will check/warn for missing configurations #31

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e68f46f
Adds docker entrypoint that will check/warn for missing configurations
StrongestNumber9 Apr 11, 2024
81510e7
Adds clarification about files required in container
StrongestNumber9 Apr 11, 2024
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4 changes: 2 additions & 2 deletions Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -2,5 +2,5 @@ FROM rockylinux:8
COPY rpm/target/rpm/com.teragrep-lsh_01/RPMS/noarch/com.teragrep-lsh_01-*.rpm /lsh_01.rpm
RUN dnf install -y /lsh_01.rpm && rm -f /lsh_01.rpm && dnf clean all
USER srv-lsh_01
ENTRYPOINT ["/usr/bin/java"]
CMD ["-Dproperties.file=/config/config.properties", "-Dlog4j2.configurationFile=file:/config/log4j2.xml", "-jar", "/opt/teragrep/lsh_01/share/lsh_01.jar"]
COPY docker-entrypoint.sh /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]
4 changes: 3 additions & 1 deletion README.adoc
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Expand Up @@ -45,7 +45,9 @@ Run maven on java 11

Mount configurations to `/config/` and run.

Expected files are `/config/config.properties` and `/config/log4j2.xml`
Configuration is expected to be in `/config/config.properties`

Custom `log4j2.xml` can be provided by placing it in `/config/log4j2.xml`, otherwise default settings will be used.

For example

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14 changes: 14 additions & 0 deletions docker-entrypoint.sh
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@@ -0,0 +1,14 @@
#!/bin/bash
if [ ! -f /config/config.properties ]; then
echo "ERROR: Missing '/config/config.properties', refusing to continue";
exit 1;
fi;

if [ -f /config/log4j2.xml ]; then
LOG4J_FILE="/config/log4j2.xml";
else
echo "INFO: Missing '/config/log4j2.xml', using default logger config";
LOG4J_FILE="/opt/teragrep/lsh_01/etc/log4j2.xml";
fi;

exec /usr/bin/java -Dproperties.file=/config/config.properties -Dlog4j2.configurationFile=file:"${LOG4J_FILE}" -jar /opt/teragrep/lsh_01/share/lsh_01.jar
1 change: 1 addition & 0 deletions pom.xml
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Expand Up @@ -155,6 +155,7 @@
<exclude>rpm/src/main/resources/*</exclude>
<!-- docker -->
<exclude>Dockerfile</exclude>
<exclude>docker-entrypoint.sh</exclude>
<!-- resources -->
<exclude>etc/config.properties</exclude>
<exclude>src/main/assembly/jar-with-dependencies.xml</exclude>
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