Docker Tomcat运行后退出0

我从Dockerfile创build一个镜像：

 FROM tomcat:8.0 COPY target/javahello.war /usr/local/tomcat/webapps/ EXPOSE 8080 CMD /usr/local/tomcat/bin/startup.sh 

但是在开始之后 – 这是在“退出”：

 $ sudo docker run -ti 957a86defe4f Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-7-openjdk-amd64/jre Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar Tomcat started. 

和：

 $ sudo docker ps -a | head CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES dc2309620baf 957a86defe4f:latest "/bin/sh -c /usr/loc 25 seconds ago Exited (0) 24 seconds ago insane_elion 

logs什么都不显示

 $ sudo docker logs dc2309620baf Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-7-openjdk-amd64/jre Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar Tomcat started. 

如果我直接从容器运行startup.sh – Tomcat按预期工作：

 $ sudo docker run -ti 957a86defe4f bash root@b00b541e6ccb:/usr/local/tomcat# ./bin/startup.sh Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-7-openjdk-amd64/jre Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar Tomcat started. # ps -axu | grep tomcat root 15 44.7 1.1 6258648 193484 ? Sl 14:54 0:04 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start 

我的CMD吗？

Answer 1

具有startup.sh的tomcat将在后台启动tomcat（作为服务），docker将以code 0退出，这是正常和预期的行为。

在这种情况下，您需要启动tomcat作为catalina.sh run前台进程。

  FROM tomcat:8.0 COPY target/javahello.war /usr/local/tomcat/webapps/ EXPOSE 8080 CMD /usr/local/tomcat/bin/catalina.sh run 

当你在容器中运行startup.sh ，它正在工作，因为你在“ bash ”（你的前台进程）。