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macostomcatdockerboot2docker

How to deploy web service on Docker container


This is my Dockerfile:

#Build java web app container image
FROM ubuntu
MAINTAINER wangyao
#Make java and tomcat install directory
RUN mkdir /usr/local/java
RUN mkdir /usr/local/tomcat
#Copy jre and tomcat into image
ADD jdk1.8.0_45.jdk /usr/local/java/
ADD apache-tomcat-7.0.62 /usr/local/tomcat/
ENV JAVA_HOME=/usr/local/java/Contents/Home
CMD cd /usr/local/tomcat;./bin/catalina.sh run
#Expose http port
EXPOSE 8080

Then i built it and try to start it:

wangyaos-MBP-3:flexcloud wangyao$ ls
Dockerfile      apache-tomcat-7.0.62    jdk1.8.0_45.jdk
wangyaos-MBP-3:flexcloud wangyao$ docker build -t flexcloud .
Sending build context to Docker daemon 355.6 MB
Sending build context to Docker daemon 
........
Successfully built 1f824d246b39
wangyaos-MBP-3:flexcloud wangyao$ docker run -i -t flexcloud
Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME:        /usr/local/java/Contents/Home
Using CLASSPATH:        /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
/usr/local/java/Contents/Home/bin/java: 20: /usr/local/java/Contents/Home/bin/java: Syntax error: word unexpected (expecting ")")
wangyaos-MBP-3:flexcloud wangyao$ 

what does word unexpected (expecting ")") mean ?

I used $ ./bin/catalina.sh run without docker, and I can run it, but i why can not run it on the docker container ?


Solution

  • As indicated in the comments, the error Syntax error: word unexpected (expecting ")") is a shell script error, which implies that /usr/local/java/Contents/Home/bin/java is not actually the java executable.

    Accessing the container with docker exec -it <container> bash and executing /usr/local/java/Contents/Home/bin/java -version shows us whats actually going on, as per @KingOfSocket's comment.