elsonrodriguez

windows:
 - name: kube-rolling
   root: ~/
   layout: main-horizontal
   panes:
     - commands:
       - export update_command="kubectl rolling-update <rc-name> --update-period=1s --image=<image_url>"
       - clear
       - read -p "$update_command"
       - $update_command

elsonrodriguez

This is a quick and dirty guide on how to deploy Selenium on Kubernetes.

It is required that you have Kubernetes cluster up and running. If you don't have one, GKE is pretty nifty: https://cloud.google.com/container-engine/

Deploy the Seleniumb Hub:

kubectl create -f selenium-hub-rc.yaml
kubectl create -f selenium-hub-svc.yaml

elsonrodriguez

#!/bin/bash
REGISTRY_URL=domain.com/name/project
RC_NAME=replication-controller
GITVER=`git rev-parse -q HEAD | cut -c1-8`
DOCKER_TAG=$REGISTRY_URL:$GITVER

docker build -t $DOCKER_TAG .
docker push $DOCKER_TAG

kubectl rolling-update $RC_NAME --image=$DOCKER_TAG

elsonrodriguez

#get all nodes running pod with specified label
kubectl get pods -l “key=value" -o template --template='{{range .items  }}{{.spec.nodeName}}{{"\n" | printf "%v"}}{{end}}’

elsonrodriguez

foo

This chart installs foo, the app with the most bar. This is just a standard foo setup.

Configuration

Secrets

The following secrets are configurable:

elsonrodriguez

#KERNEL=="js?", ATTRS{name}=="HJZ Mayflash Wiimote PC Adapter", NAME="input/js100"
#SUBSYSTEM=="input", KERNEL=="js[0-9]*", ATTRS{name}=="HJZ Mayflash Wiimote PC Adapter", ENV{ID_INPUT_JOYSTICK}=="?*", MODE="0000", ENV{ID_INPUT_JOYSTICK}="", RUN+="/bin/rm %E{DEVNAME}"
SUBSYSTEM=="input", ATTRS{name}=="HJZ Mayflash Wiimote PC Adapter", ENV{ID_INPUT_JOYSTICK}=="?*", RUN+="/bin/rm %E{DEVNAME}", ENV{ID_INPUT_JOYSTICK}=""
SUBSYSTEM=="input", ATTRS{name}=="HJZ Mayflash Wiimote PC Adapter", KERNEL=="js[0-9]*", RUN+="/bin/rm %E{DEVNAME}", ENV{ID_INPUT_JOYSTICK}="" 

elsonrodriguez

This is an example of testing Kubernetes volume provisioning.

This will work on a Kubernetes 1.2 beta 0 cluster, provisioned by:

1. Rsyncing https://github.com/kubernetes/kubernetes/tree/9f62a2b196ad5fad3bc66ef78c5459fb9f072de2/cluster over the cluster directory in this release of k8s: https://github.com/kubernetes/kubernetes/releases/download/v1.2.0-beta.0/kubernetes.tar.gz
2. Running KUBERNETES_PROVIDER=aws kube-up.sh

After that, kubectl create -f busybox-pvc.yaml and kubectl create -f busybox-rc.yaml

elsonrodriguez

time kubectl run --command --rm  -i --tty java --image=java --restart=Never --overrides='{ "apiVersion": "extensions/v1beta1", "spec":{"template":{"spec": {"containers":[{"name":"java","image":"java", "imagePullPolicy":"Always"}]}}}}' -- uptime

elsonrodriguez

Quick and Dirty Node Selection

So first, let's create our pod.

$ kubectl create -f https://gist.githubusercontent.com/elsonrodriguez/60e53e2479dc3146447b/raw/3b4d703855500c829ae58d70e386b4e41e4f7996/pod.yaml
pod "gputest" created

Now let's see it go:

elsonrodriguez

scp ~/Downloads/*.deb user@host:
scp ~/Downloads/etcd*.tar.gz user@host:
scp ~/oss/kubernetes/_output/dockerized/bin/linux/amd64/k* user@host: