sHARING IMAGES

Shipping images can be painful

docker pull goldmann/wildfly

117mb download with Fedora images cached locally

SHARING images

It's even worse if you don't have a registry

 docker export 6f91f81c9293 > wildfly.tar

trusting images

Unless you know how an images is built, you shouldn't trust it

Dockerfiles show how the images is built:

    FROM fedora
    RUN yum install -y wildfly
    EXPOSE 8080
    ENTRYPOINT ["/usr/share/wildfly/bin/launch.sh"]

trusted build

wildfly8 example

FROM fedora 

WILDFLY8 EXAMPLE

RUN yum install -y wildfly 

WILDFLY 8 EXAMPLE

EXPOSE 8080 

WILDFLY 8 ExAmple

 ENTRYPOINT ["/usr/share/wildfly/bin/launch.sh]

WILDFLY 8 EXAMPLE

    FROM fedora
    RUN yum install -y wildfly
    EXPOSE 8080
    ENTRYPOINT ["/usr/share/wildfly/bin/launch.sh"]

docker build -t wildfly8 . 

docker run wildfly8