Java 11 with CentOS instead of Fedora base image

[vorburger]

Once a CentOS 7.6 with Java 11 packages is available (it is not yet, at the time of opening this), then the Fedora based Java 11 support introduced in #160 could switch the base image.

Would we like to keep the Fedora one, or remove it again?

See also #192.

[ctron]

It looks like CentOS 7.6 is released. I can now do:

yum install java-11-openjdk

I think it is time for Java 11.

[vorburger]

@ctron but there is no CentOS 7.6 container image, yet, see https://hub.docker.com/r/library/centos/tags/ ... @rhuss @gunnarmorling please shout when you see it, and I'm happy to the needful ASAP.

[ctron]

I think there is:

[jreimann@jreimann ~]$ docker run --rm -ti centos:7 yum list "java-11-*"
Loaded plugins: fastestmirror, ovl
Determining fastest mirrors
 * base: mirror.nforce.com
 * extras: ftp.nluug.nl
 * updates: mirror.prolocation.net
base                                                                                                                                                                   | 3.6 kB  00:00:00     
extras                                                                                                                                                                 | 3.4 kB  00:00:00     
updates                                                                                                                                                                | 3.4 kB  00:00:00     
(1/4): base/7/x86_64/group_gz                                                                                                                                          | 166 kB  00:00:00     
(2/4): extras/7/x86_64/primary_db                                                                                                                                      | 153 kB  00:00:00     
(3/4): updates/7/x86_64/primary_db                                                                                                                                     | 1.3 MB  00:00:00     
(4/4): base/7/x86_64/primary_db                                                                                                                                        | 6.0 MB  00:00:01     
Available Packages
java-11-openjdk.i686                                                                                  1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk.x86_64                                                                                1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-debug.i686                                                                            1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-debug.x86_64                                                                          1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-demo.i686                                                                             1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-demo.x86_64                                                                           1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-demo-debug.i686                                                                       1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-demo-debug.x86_64                                                                     1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-devel.i686                                                                            1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-devel.x86_64                                                                          1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-devel-debug.i686                                                                      1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-devel-debug.x86_64                                                                    1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-headless.i686                                                                         1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-headless.x86_64                                                                       1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-headless-debug.i686                                                                   1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-headless-debug.x86_64                                                                 1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc.i686                                                                          1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc.x86_64                                                                        1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-debug.i686                                                                    1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-debug.x86_64                                                                  1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-zip.i686                                                                      1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-zip.x86_64                                                                    1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-zip-debug.i686                                                                1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-javadoc-zip-debug.x86_64                                                              1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-jmods.i686                                                                            1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-jmods.x86_64                                                                          1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-jmods-debug.i686                                                                      1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-jmods-debug.x86_64                                                                    1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-src.i686                                                                              1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-src.x86_64                                                                            1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-src-debug.i686                                                                        1:11.0.1.13-3.el7_6                                                              updates
java-11-openjdk-src-debug.x86_64                                                                      1:11.0.1.13-3.el7_6                                                              updates

[vorburger]

Would we like to keep the Fedora one, or remove it again?

I'll keep the current fedora-java11 from #189 / #160 as-is for now, and not remove it, just in case it would be useful in the future to test something Fedora against CentOS, and for now just add an additional centos-java11. But in #203 we'll only push the CentOS one to Docker Hub, not the Fedora one, to avoid confusion.