We have an application Calatena based on Java, usually we use tomcat to run on local without problems.
We need to enable application on SAP and on a running Docker.
I tried with tomcat:8.0 and tomcat:9.0.
In both cases there is a javax.servlet ServerRealm ClassNotFoundException.
I pulled both tomcat versions as shown below to enable a container where I used the dockerfile to load the calatena6.war into the container.
tomcat:8.0
docker image pull tomcat:8.0
docker container create --publish 8082:8080 --name my-tomcat-container tomcat:8.0
docker container start my-tomcat-container
docker container exec -it my-tomcat-container bash
PS C:\Users\Public\Documents\web-app\Calatena6> docker container exec -it my-tomcat-container9 bashner9 bash
root@15560e742bb9:/usr/local/tomcat# cd conf
root@15560e742bb9:/usr/local/tomcat/conf# rm catalina.properties
root@15560e742bb9:/usr/local/tomcat/conf# rm tomcat-users.xml
It is showing tomcat manager but displaying error message:
tomcat:9.0
PS C:\Users\Public\Documents\web-app\Calatena6> docker cp "C:\Java\apache-tomcat-9.0.43\lib" dcb5242ce4a6:/usr/local/tomcat/lib/ext
" " docker cp "C:\Java\apache-tomcat-9.0.43\conf\catalina.properties" dcb5242ce4a6:/usr/local/tomcat/conf/
" " docker cp "C:\Java\apache-tomcat-9.0.43\conf\catalina.properties" dcb5242ce4a6:/usr/local/tomcat/conf/
" " docker cp "C:\Java\apache-tomcat-9.0.43\bin\setenv.bat" dcb5242ce4a6:/usr/local/tomcat/bin/
" " docker cp "C:\Java\apache-tomcat-9.0.43\bin\setenv.sh" dcb5242ce4a6:/usr/local/tomcat/bin/
" " docker image build -t your_name/some-app-image ./
It is not working at all:
