Ticket Monster UI

First we need to build the docker container.

Vanilla Kubernetes

If you're running on vanilla Kubernetes (or some distro that doesn't do docker builds) then you need access to a docker Daemon. To build navigate into the web folder and run the docker build:

cd web
docker build -t ticketmonster/ui:2.0 .

If your kubernetes isntallation is not local, you'll need to tag and push the image to a docker registry that can be reached by your Kubernetes installation. Once you've pushed it to a docker registry, run like this:

kubectl run tm-ui --image=ticketmonster/ui:2.0

Now expose the UI as a Kuberentes Service:

kubectl expose rc tm-ui-1 --name ticket-monster --port 80

Lastly, you'll need to expose a Kubernetes Ingress route. See the docs on Ingress Resources for more.

Running on OpenShift 3.x

OpenShift makes a lot of this a lot easier for these reasons:

• we can do the docker build inside of openshift with BuildConfigs; we don't need access to a docker daemon
• openshift has an out of the box integrated docker registry; don't need to find one that's accessible to our Kubernetes installation

Let's try it. First we need to build the docker image. Navigate to web folder and ask openshif to do the build:

oc new-build --binary=true --name ticket-monster-ui
oc start-build ticket-monster-ui  --from-dir=.

Now, let's create the application and deploy it:

oc new-app ticket-monster-ui
oc deploy ticket-monster-ui

NOTE: the default security context constraints enforce certain assumptions about the Docker image for security reasons. At the moment, we cannot run as root out of the box inside the Docker image (and bind to port 80). To alleviate this for the purposes of this example, let's edit the restricted scc and allow to RunAsAny user:

export EDITOR=vim
oc edit scc restricted

Change the runAsUser section to match:

 runAsUser:
   type: RunAsAny

In OpenShift, we can expose this as a route (similar to Kubernetes Ingress). Here's an example:

oc expose svc ticket-monster-ui

Now we should be able to hit the service from the command line or the browser based on the OpenShift Route or Kubernetes Ingress!

Set up the backend services

The backend services should be listening at:

• Admin - http://tm-admin/admin
• Orders - http://tm-orders/orders
• Search - http://tm-search/search

Please see the httpd.conf file for more.

Additonal notes: Can port forward to your local machine from vagrant like this:

vagrant ssh -- -vnNTL *:8080:$DOCKER_HOST_IP:8080