Docker commands and Dockerfile examples

To install docker on fedora

$ sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo

$ sudo dnf install docker-ce docker-ce-cli containerd.io 

$ sudo systemctl start docker

$ sudo docker run hello-world

To build and run an image

First, create a Dockerfile under the current directory (see below).

$ sudo docker build -t myimagename:myimageversion .

$ sudo docker  run -p 8888:8080 myimagename:myimageversion

or 

$ sudo docker run --net=host myimagename:myimageversion

Other commands

$ sudo docker image ls

$ sudo docker rmi image-hash

$ sudo docker ps -as

$ sudo docker rm container-hash

$ sudo docker run -it myimagename:myimageversion bash

Dockerfile of adding self CA and Bouncy Castle jar

FROM tomcat:9.0.44-jdk8

# Add myCA certificate

ADD myCA.crt /usr/local/share/ca-certificates/

RUN chmod 644 /usr/local/share/ca-certificates/myCA.crt && update-ca-certificates

# Add Bouncy Castle provider

RUN echo '' >> "/usr/local/openjdk-8/jre/lib/security/java.security"

RUN echo 'security.provider.10=org.bouncycastle.jce.provider.BouncyCastleProvider' >> "/usr/local/openjdk-8/jre/lib/security/java.security"

ADD bcprov-jdk15on.jar /usr/local/openjdk-8/jre/lib/ext/

# Add web app

ADD myapp.war  /usr/local/tomcat/webapps/

EXPOSE 8080

CMD ["catalina.sh", "run"]