Comments (2)
nlighten
commented on August 14, 2024
1
@jejemontagne @hervenicol Thanks you the extensive test. I think that the actual cause is that since prometheus 0.0.12 an additional dependency for simpleclient_servlet_common needs to be added. I misinterpreted a previous report on this same error. Can you please try that:
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient_servlet_common/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient_servlet_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient_servlet_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
Note that you cannot just mix and match TOMCAT_EXPORTER_VERSION and TOMCAT_SIMPLECLIENT_VERSION. You need to use the version tomcat exporter was compiled with (see pom.xml). The combination used in the example Dockerfile is fine.
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jejemontagne
commented on August 14, 2024
Thank you @nlighten for you quick answer !!
And more thanks because it was a wonderfully working answer !! 😉
All is working fine. 👌
Following combinations have been tested:
- ✅ Tomcat 8.5 <--> simpleclient 0.11
- ✅ Tomcat 8.5 <--> simpleclient 0.12
- ✅ Tomcat 8.5 <--> simpleclient 0.15
- ✅ Tomcat 9.0 <--> simpleclient 0.12
- ✅ Tomcat 9.0 <--> simpleclient 0.15
- ✅ Tomcat 10.0 <--> simpleclient 0.11
- ✅ Tomcat 10.0 <--> simpleclient 0.12
- ✅ Tomcat 10.0 <--> simpleclient 0.15
Dockerfile used for tests :
FROM tomcat:9.0-jdk17-openjdk-slim
ENV TOMCAT_SIMPLECLIENT_VERSION=0.15.0
ENV TOMCAT_EXPORTER_VERSION=0.0.15
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient_common/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient_hotspot/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient_hotspot-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient_hotspot-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient_servlet/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient_servlet-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient_servlet-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=io/prometheus/simpleclient_servlet_common/${TOMCAT_SIMPLECLIENT_VERSION}/simpleclient_servlet_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar", \
"/usr/local/tomcat/lib/simpleclient_servlet_common-${TOMCAT_SIMPLECLIENT_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=nl/nlighten/tomcat_exporter_client/${TOMCAT_EXPORTER_VERSION}/tomcat_exporter_client-${TOMCAT_EXPORTER_VERSION}.jar", \
"/usr/local/tomcat/lib/tomcat_exporter_client-${TOMCAT_EXPORTER_VERSION}.jar"]
ADD ["https://search.maven.org/remotecontent?filepath=nl/nlighten/tomcat_exporter_servlet/${TOMCAT_EXPORTER_VERSION}/tomcat_exporter_servlet-${TOMCAT_EXPORTER_VERSION}.war", \
"/usr/local/tomcat/webapps/metrics.war"]
docker build -t mytesttomcatexporter . && docker run -it -p 8080:8080 mytesttomcatexporter
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Related Issues (20)
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