OpenShift 3.11离线环境的jenkins演示

离线安装完成后，一般情况下只装了个基础环境，catalog镜像没有导入，本文主要侧重在jenkins的一些环境设置和演示。

首先follow下面链接下载镜像

https://docs.openshift.com/container-platform/3.11/install/disconnected_install.html

我们这里下载的主要是

$ docker pull registry.redhat.io/openshift3/jenkins-2-rhel7:<tag>

$ docker pull registry.redhat.io/openshift3/jenkins-slave-maven-rhel7:<tag>

$ docker pull registry.redhat.io/openshift3/jenkins-slave-nodejs-rhel7:<tag>

导入到本地镜像仓库

[root@node2 images]# docker images
REPOSITORY                                                   TAG                 IMAGE ID            CREATED             SIZE

registry.example.com/openshift3/jenkins-2-rhel7              latest              0f36706e2c53        10 months ago       1.13 GB
registry.example.com/openshift3/jenkins-slave-maven-rhel7    latest              5ce887d9bf31        11 months ago       1.02 GB
registry.example.com/openshift3/jenkins-slave-nodejs-rhel7   latest              a32c719893f2        11 months ago       971 MB

但现在进入查看jenkins image stream, 发现仍然是不可用状态。

[root@master ~]# oc describe is jenkins -n openshift
Name:            jenkins
Namespace:        openshift
Created:        5 months ago
Labels:            <none>
Annotations:        openshift.io/display-name=Jenkins
            openshift.io/image.dockerRepositoryCheck=2019-08-30T14:32:54Z
Docker Pull Spec:    docker-registry.default.svc:5000/openshift/jenkins
Image Lookup:        local=false
Unique Images:        1
Tags:            3

1
  tagged from registry.example.com/openshift3/jenkins-1-rhel7:latest
    prefer registry pullthrough when referencing this tag

  Provides a Jenkins 1.X server on RHEL 7. For more information about using this container image, including OpenShift considerations, see https://github.com/openshift/jenkins/blob/master/README.md.
  Tags: hidden, jenkins

  ! error: Import failed (InternalError): Internal error occurred: Get https://registry.example.com/v2/: dial tcp 192.168.56.105:443: connect: connection refused
      5 months ago

执行导入

oc import-image jenkins  --from=registry.example.com/openshift3/jenkins-2-rhel7:latest --confirm --insecure=true

确认导入成功后，在项目中选择Jenkins(Ephemeral)，然后等待创建完成。