coreos/rktnetes-workshop

Name: rktnetes-workshop

Owner: CoreOS

Description: Vagrant up your rktnetes cluster

Forked from: s-urbaniak/rktnetes-workshop

Created: 2016-06-27 19:19:04.0

Updated: 2018-03-13 22:36:40.0

Pushed: 2016-10-20 16:00:48.0

Homepage:

Size: 2095

Language: Shell

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README

rktnetes-workshop

This repo contains a Vagrantfile and necessary assets to help you launch your Kubernetes cluster with rkt as a runtime.

Workshop

The workshop slides can be viewed at http://go-talks.appspot.com/github.com/coreos/rktnetes-workshop/workshop.slide.

Vagrant up your rktnetes cluster.

 vagrant
grant up
]

grant ssh

rant@localhost ~]$ kubectl describe node 127.0.0.1
:           127.0.0.1
ls:         beta.kubernetes.io/arch=amd64
        beta.kubernetes.io/os=linux
        kubernetes.io/hostname=127.0.0.1
ts:         <none>
tionTimestamp:  Mon, 27 Jun 2016 21:23:07 +0000
e:          
itions:
pe          Status  LastHeartbeatTime           LastTransitionTime          Reason              Message
--          ------  -----------------           ------------------          ------              -------
tOfDisk         False   Mon, 27 Jun 2016 21:25:10 +0000     Mon, 27 Jun 2016 21:23:07 +0000     KubeletHasSufficientDisk    kubelet has sufficient disk space available
moryPressure    False   Mon, 27 Jun 2016 21:25:10 +0000     Mon, 27 Jun 2016 21:23:07 +0000     KubeletHasSufficientMemory  kubelet has sufficient memory available
ady         True    Mon, 27 Jun 2016 21:25:10 +0000     Mon, 27 Jun 2016 21:23:07 +0000     KubeletReady            kubelet is posting ready status
esses:      127.0.0.1,127.0.0.1
city:
ha.kubernetes.io/nvidia-gpu:    0
:                   2
ory:                2048712Ki
s:                  110
catable:
ha.kubernetes.io/nvidia-gpu:    0
:                   2
ory:                2048712Ki
s:                  110
em Info:
hine ID:            508619e7e68e446c84d1fcdf7e0dc577
tem UUID:           B488DBD6-3470-4E69-BF62-DE81AD069083
t ID:           1ea277cf-87e2-4383-bbea-305339975de9
nel Version:        4.5.5-300.fc24.x86_64
Image:          Fedora 24 (Cloud Edition)
rating System:      linux
hitecture:          amd64
tainer Runtime Version: rkt://1.9.1
elet Version:       v1.3.0-beta.2
e-Proxy Version:        v1.3.0-beta.2
rnalID:         127.0.0.1
terminated Pods:        (0 in total)
mespace         Name        CPU Requests    CPU Limits  Memory Requests Memory Limits
-------         ----        ------------    ----------  --------------- -------------
cated resources:
otal limits may be over 100 percent, i.e., overcommitted. More info: http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md)
U Requests  CPU Limits  Memory Requests Memory Limits
----------  ----------  --------------- -------------
(0%)    0 (0%)      0 (0%)      0 (0%)
ts:
rstSeen LastSeen    Count   From            SubobjectPath   Type        Reason          Message
------- --------    -----   ----            -------------   --------    ------          -------
        2m      1   {kube-proxy 127.0.0.1}          Normal      Starting        Starting kube-proxy.
        2m      1   {kubelet 127.0.0.1}         Normal      Starting        Starting kubelet.
        2m      7   {kubelet 127.0.0.1}         Normal      NodeHasSufficientDisk   Node 127.0.0.1 status is now: NodeHasSufficientDisk
        2m      7   {kubelet 127.0.0.1}         Normal      NodeHasSufficientMemory Node 127.0.0.1 status is now: NodeHasSufficientMemory
        2m      1   {controllermanager }            Normal      RegisteredNode      Node 127.0.0.1 event: Registered Node 127.0.0.1 in NodeController

Now we can start playing with the rktnetes cluster!

rant@localhost ~]$ kubectl run redis --image=redis
oyment "redis" created

rant@localhost ~]$ kubectl get pods
                     READY     STATUS    RESTARTS   AGE
s-4282552436-bwue8   1/1       Running   0          13s

rant@localhost ~]$ rkt list
        APP     IMAGE NAME                  STATE   CREATED     STARTED     NETWORKS
7036    hyperkube   quay.io/coreos/hyperkube:v1.3.0-beta.2_coreos.0 running 14 minutes ago  14 minutes ago  
0e51    etcd        quay.io/coreos/etcd:v2.3.7          running 14 minutes ago  14 minutes ago  
96f0    hyperkube   quay.io/coreos/hyperkube:v1.3.0-beta.2_coreos.0 running 14 minutes ago  14 minutes ago  
bef9    hyperkube   quay.io/coreos/hyperkube:v1.3.0-beta.2_coreos.0 running 14 minutes ago  14 minutes ago  
7641    redis       registry-1.docker.io/library/redis:latest   running 1 minute ago    1 minute ago    rkt.kubernetes.io:ip4=10.1.0.2, default-restricted:ip4=172.16.28.2

Add the Kubernetes Dashboard:

rant@localhost ~]$ kubectl create -f https://rawgit.com/kubernetes/dashboard/master/src/deploy/kubernetes-dashboard.yaml

Add an Ingress controller based on traefik:

rant@localhost ~]$ kubectl create -f /vagrant/traefik.yaml

Modify your local /etc/hosts, replace the entry with the Vagrant IP address:

rant@localhost ~]$ ip addr show dev eth1
th1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 52:54:00:90:3f:9a brd ff:ff:ff:ff:ff:ff
inet 172.28.128.126/24 brd 172.28.128.255 scope global dynamic eth1
   valid_lft 3221sec preferred_lft 3221sec
inet6 fe80::5054:ff:fe90:3f9a/64 scope link 
   valid_lft forever preferred_lft forever

rant@localhost ~]$ exit

 /etc/hosts

28.128.126    traefik.rktnetes

Open http://traefik.rktnetes.