Today I encountered the problem of creating a mirror with Dockerfile, and the container automatically ends after the image is run.
Start the command:
docker run -d -p 8080:8080 -v /usr/local/tomcat7.0/logs:/usr/local/tomcat7.0/logs --name tomcatweb tomcat:7.0
After running, use docker ps to find that the docker container has ended
After searching for information, I found that this problem is not complicated. The reason is that: when the Docker container is running in the background, there must be a foreground process.
Solution:
1. Distribute the running process into the foreground to start, such as:nginx nginx -g "daemon off;" tomcat ./ run
2. Use tail and top, a program that can be run on the foreground. It is especially recommended to output your log file.
Add ENTRYPOINT /opt/tomcat7.0/bin/ && in Dockerfile tail -F /opt/tomcat7.0/logs/
Supplementary knowledge:The tomcat pulled by docker pull did not generate a log, so I handwritten a tocmat dockerfile file, and the actual measurements were generated.
1. The dockfile file and explanation are as follows
FROM openjdk:8-jre
MAINTAINER zyj
ENV JAVA_HOME /docker-java-home
ENV CATALINA_HOME /opt/tomcat
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/bin:$CATALINA_HOME/scripts
#Time ZoneRUN echo "Asia/Shanghai" > /etc/timezone
RUN mv /etc/localtime /etc/localtime_bak
RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
#TOMCAT
ENV TOMCAT_MAJOR 8
ENV TOMCAT_VERSION 8.5.35
RUN wget /apache/tomcat/tomcat-8/v8.5.41/bin/apache-tomcat-8.5. && \
tar -zxvf apache-tomcat-8.5. && \
rm apache-tomcat*. && \
mv apache-tomcat* ${CATALINA_HOME}
RUN chmod +x ${CATALINA_HOME}/bin/*sh
RUN chmod 777 ${CATALINA_HOME}/logs/
RUN chmod 777 ${CATALINA_HOME}/webapps/
#Set username and password adminADD /opt/tomcat/conf/
#Remote accessADD /opt/tomcat/webapps/manager/META-INF/
ENV LANG zh_CN.UTF-8
#Open portEXPOSE 8080
# Launch Tomcat
WORKDIR /opt/tomcat/bin
CMD ["","run"]
Note: This docker requires reference to external files
See detailsgithub
2. Dockerfile compilation command
docker build -f dockerfile -t zyj/tomcat .
3. Run the command
docker run -d -p 8080:8080 --name tomcat8 -v /opt/docker-tomcat/logs/:/opt/tomcat/logs/ -v /opt/docker-tomcat/webapps/:/opt/tomcat/webapps/ -v /opt/docker-tomcat/:/opt/tomcat/webapps/manager/META-INF/ -v /opt/docker-tomcat/:/opt/tomcat/conf/ --privileged=true zyj/tomcat
The above solution to the automatic end of the docker run container is all the content I share with you. I hope you can give you a reference and I hope you can support me more.