Fixes logger, docker and systemd servicefile related issues (#24)

* Fixes logger related issues

* Change docker->container in how to title

Dockerfile

@@ -3,4 +3,4 @@ COPY rpm/target/rpm/com.teragrep-lsh_01/RPMS/noarch/com.teragrep-lsh_01-*.rpm /l
 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", "-jar", "/opt/teragrep/lsh_01/share/lsh_01.jar"]
+CMD ["-Dproperties.file=/config/config.properties", "-Dlog4j2.configurationFile=file:/config/log4j2.xml", "-jar", "/opt/teragrep/lsh_01/share/lsh_01.jar"]

README.adoc

@@ -41,9 +41,11 @@ Run maven on java 11
 
 `mvn clean package`
 
-== How to run in docker
+== How to run in a container
 
-Mount configuration so it is in `/config/config.properties` and run.
+Mount configurations to `/config/` and run.
+
+Expected files are `/config/config.properties` and `/config/log4j2.xml`
 
 For example
 
@@ -62,7 +64,7 @@ Contribution requirements:
 
 Read more in our https://github.com/teragrep/teragrep/blob/main/contributing.adoc[Contributing Guideline].
 
-### Contributor License Agreement
+=== Contributor License Agreement
 
 Contributors must sign https://github.com/teragrep/teragrep/blob/main/cla.adoc[Teragrep Contributor License Agreement] before a pull request is accepted to organization's repositories.
 

rpm/src/main/resources/lsh_01.service

@@ -3,9 +3,9 @@ Description=com.teragrep.lsh_01
 ConditionPathExists=/opt/teragrep/lsh_01/share/lsh_01.jar
 
 [Service]
-ExecStart=/usr/lib/jvm/jre-1.8.0-openjdk/bin/java -Dlog4j.configuration=file:/opt/teragrep/lsh_01/etc/log4j2.xml -jar /opt/teragrep/lsh_01/share/lsh_01.jar
+ExecStart=/usr/lib/jvm/jre-11-openjdk/bin/java -Dproperties.file=/opt/teragrep/lsh_01/etc/config.properties -log4j2.configurationFile=file:/opt/teragrep/lsh_01/etc/log4j2.xml -jar /opt/teragrep/lsh_01/share/lsh_01.jar
 User=srv-lsh_01
-WorkingDirectory=/opt/teragrep/lsh_01/etc
+WorkingDirectory=/opt/teragrep/lsh_01
 
 [Install]
 WantedBy=multi-user.target