Unable to run Docker container!

[abasimdev]

Following is my image code : '''

1 FROM openjdk:8 2 ARG url=https://referenceappkhaja.s3-us-west-2.amazonaws.com/spring-petclinic-2.2.0.BUILD-SNAPSHOT.jar 3 ADD ${url} . 4 ENV app=spring-petclinic-2.2.0.BUILD-SNAPSHOT.jar 5 ENV dir=. 6 WORKDIR ${dir} 7 EXPOSE 8080 8 CMD ["java", "-jar", ${app}]

''' My image does not run and gives me the following error: "/bin/sh: 1: [java,: not found"

However, the same image runs If I change the CMD command as follows: ''' CMD java -jar ${app}

''' Even If my image runs but still I am unable to change my Workdir, to change Workdir I run it as follow: ''' docker container run -e dir=/opt -it -P spc:10 /bin/bash

''' But it always runs in the root directory!

[singaravellu]

try these CMD ["java", "-jar", "${app}"] java was not found because in specified path there was not .jar file working dir was not changing because you haven't specifed the working dir was given as . which is present working dir by default

[srmanikanta]

hi abasimdev, if you change the working directory please remove env arg because you are set environment variable for workdir