OpenShift

#!/bin/bash

# ===========================================================
# [1] get prerequisites, openshift client, and set hostname #
# ===========================================================
# need wget and docker
sudo yum -y install wget docker git
# get the latest open shift client from https://github.com/openshift/origin/releases
wget https://github.com/openshift/origin/releases/download/v3.9.0/openshift-origin-client-tools-v3.9.0-191fece-linux-64bit.tar.gz
# extract the latest open shift client you just downloaded
tar zxf openshift-origin-client-tools-v3.9.0-191fece-linux-64bit.tar.gz
# move the oc executable somewhere so it's on most PATHS
sudo mv openshift-origin-client-tools-v3.9.0-191fece-linux-64bit/oc /usr/local/bin/
# add your ip address to /etc/hosts
sudo -- sh -c "echo 139.162.131.60 localhost.openshift >> /etc/hosts"



# ==========================================
# [2] configure docker and start openshift #
# ==========================================
# unless you have a cert, tell docker to use insecure resgistries
sudo -- sh -c "echo "{\"insecure-registries\"" : ["\"139.162.131.60:5000\"", "\"172.30.0.0/16\""]} > /etc/docker/daemon.json"
# the file should look like this: {"insecure-registries" : ["139.162.131.60:5000", "172.30.0.0/16"]}
# now need to make docker mounts 'shared' ... guidance is here: https://docs.portworx.com/knowledgebase/shared-mount-propogation.html#redhatcentos-configuration-and-shared-mounts ... TL;DR: remove the line starting with 'MountFlags' from /lib/systemd/system/docker.service ... OS-level --make-shared does NOT work!
sed -i '/^MountFlags/d' /lib/systemd/system/docker.service
# reload docker
sudo service docker reload
# create the openshift cluster ... seems must be run as 'root', not even sudo works because it doesn't find oc on PATH
oc cluster up --public-hostname 139.162.131.60
# now you should be able to visit 139.162.131.60:8443 and log in using (by default) *any* credentials you choose ... whatever you enter, it'll create that acct for you
#### SCREEN SHOT HERE ####

[root@localhost ~]# oc new-app magnolia-1 --name magnoliax
W0419 07:05:16.233491   28843 newapp.go:480] Could not find an image stream match for "magnolia-1:latest". Make sure that a Docker image with that tag is available on the node for the deployment to succeed.
--> Found Docker image bdd1731 (18 hours old) from  for "magnolia-1:latest"

    * This image will be deployed in deployment config "magnoliax"
    * Port 8080/tcp will be load balanced by service "magnoliax"
      * Other containers can access this service through the hostname "magnoliax"
    * WARNING: Image "magnolia-1:latest" runs as the 'root' user which may not be permitted by your cluster administrator

--> Creating resources ...
    deploymentconfig "magnoliax" created
    service "magnoliax" created
--> Success
    Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:
     'oc expose svc/magnoliax'
    Run 'oc status' to view your app.
[root@localhost ~]# oc expose svc/magnoliax
route "magnoliax" exposed
[root@localhost ~]# oc get routes
NAME             HOST/PORT                                      PATH      SERVICES         PORT       TERMINATION   WILDCARD
magnoliaauthor   magnoliaauthor-default.139.162.131.60.nip.io             magnoliaauthor   8080-tcp                 None
magnoliax        magnoliax-default.139.162.131.60.nip.io                  magnoliax        8080-tcp                 None
[root@localhost ~]#

[bandersen@li1397-60 docker]$ oc get pod --all-namespaces -o wide
NAMESPACE               NAME                            READY     STATUS      RESTARTS   AGE       IP               NODE
default                 docker-registry-1-p9fc8         1/1       Running     0          20h       172.17.0.5       localhost
default                 magnoliaauthor-1-build          0/1       Completed   0          19h       172.17.0.2       localhost
default                 magnoliaauthor-2-build          0/1       Completed   0          19h       172.17.0.2       localhost
default                 magnoliaauthor-2-djlpt          1/1       Running     0          19h       172.17.0.2       localhost
default                 magnoliax-1-deploy              0/1       Error       0          35m       172.17.0.3       localhost
default                 persistent-volume-setup-68t4w   0/1       Completed   0          20h       172.17.0.3       localhost
default                 router-1-hpvfq                  1/1       Running     0          20h       139.162.131.60   localhost
openshift-web-console   webconsole-7dfbffd44d-mfzt8     1/1       Running     0          20h       172.17.0.4       localhost
[bandersen@li1397-60 docker]$ oc logs magnoliax-1-deploy
--> Scaling magnoliax-1 to 1
error: update acceptor rejected magnoliax-1: pods for rc 'default/magnoliax-1' took longer than 600 seconds to become available
[bandersen@li1397-60 docker]$

[bandersen@li1397-60 docker]$ oc get route magnoliax -o yaml
apiVersion: route.openshift.io/v1
kind: Route
metadata:
  annotations:
    openshift.io/host.generated: "true"
  creationTimestamp: 2018-04-19T07:05:27Z
  labels:
    app: magnoliax
  name: magnoliax
  namespace: default
  resourceVersion: "100481"
  selfLink: /apis/route.openshift.io/v1/namespaces/default/routes/magnoliax
  uid: 09f3ab6f-43a0-11e8-ba2b-6ee30226f73c
spec:
  host: magnoliax-default.139.162.131.60.nip.io
  port:
    targetPort: 8080-tcp
  to:
    kind: Service
    name: magnoliax
    weight: 100
  wildcardPolicy: None
status:
  ingress:
  - conditions:
    - lastTransitionTime: 2018-04-19T07:05:27Z
      status: "True"
      type: Admitted
    host: magnoliax-default.139.162.131.60.nip.io
    routerName: router
    wildcardPolicy: None
[bandersen@li1397-60 docker]$