[EPIC] Change base images

[manusa]

Description

As we move away from fabric8 organization, it's good not to depend on fabric8 maintained base images.

Since Red Hat Universal Base Image (UBI) was recently released, we can switch all of our base images with those provided by UBI.

• https://access.redhat.com/containers/?tab=tech-details&platform=openshift&get-method=unauthenticated#/registry.access.redhat.com/ubi8/openjdk-8

• https://access.redhat.com/containers/?tab=tech-details&platform=openshift&get-method=unauthenticated#/registry.access.redhat.com/ubi8/openjdk-11

• http://post-office.corp.redhat.com/archives/thecore/2020-May/msg00084.html

These are the base images Eclipse Che is using for Devfiles.

These are the images quarkus uses. For Java-Exec we can implement our own with a similar approach.

Current Base Images

Image type	Usage (Generator)	Current Image	Proposed Image
java.upstream.s2i	java-exec,spring-boot,wildfly-swarm	fabric8/s2i-java	quay.io/jkube/jkube-java-binary-s2i #205
java.upstream.docker	java-exec,spring-boot,wildfly-swarm	fabric8/java-centos-openjdk8-jdk	quay.io/jkube/jkube-java-binary-s2i #205
java.redhat.s2i	java-exec,spring-boot,wildfly-swarm	jboss-fuse-6/fis-java-openshift	No longer applicable #220
java.redhat.docker	java-exec,spring-boot,wildfly-swarm	jboss-fuse-6/fis-java-openshift	No longer applicable #220
karaf.upstream.docker	karaf	fabric8/s2i-karaf	quay.io/jkube/jkube-karaf-binary-s2i #214
karaf.upstream.s2i	karaf	fabric8/s2i-karaf	quay.io/jkube/jkube-karaf-binary-s2i #214
karaf.redhat.docker	karaf	jboss-fuse-6/fis-karaf-openshift	No longer applicable #220
karaf.redhat.s2i	karaf	jboss-fuse-6/fis-karaf-openshift	No longer applicable #220
tomcat.upstream	webapp	fabric8/tomcat-9	quay.io/jkube/jkube-tomcat9-binary-s2i #206
jetty.upstream	webapp	fabric8/jetty-9	quay.io/jkube/jkube-jetty9-binary-s2i #210
wildfly.upstream.docker	webapp	jboss/wildfly	jboss/wildfly:19.0 .0.Final #198
wildfly.upstream.s2i	webapp	n/a	quay.io/wildfly/wildfly-centos7:19.0 #201

Tasks for each image change:

• Implement unit tests
• Create/Update quick start > Verify quick start works in both OpenShift and Kubernetes clusters
• Update e2e test (https://github.com/jkubeio/jkube-integration-tests)

Issues

• Support for newer Java LTS versions in base images #194 Support for new Java LTS versions

[manusa]

All base images have been replaced