ONAP on Kubernetes

kubectl exec -it robot -- /bin/bash

root@obriensystemsucont0:~/onap/oom/kubernetes/oneclick# kubectl describe node obriensystemsucont0 | grep robot

  Namespace            Name                        CPU Requests    CPU Limits    Memory Requests    Memory Limits

  ---------            ----                        ------------    ----------    ---------------    -------------
  onap-robot            robot-964706867-95hjd                0 (0%)        0 (0%)        0 (0%)        0 (0%)
root@obriensystemsucont0:~/onap/oom/kubernetes/oneclick# kubectl exec -it robot-964706867-95hjd /bin/bash
Error from server (NotFound): pods "robot-964706867-95hjd" not found
root@obriensystemsucont0:~/onap/oom/kubernetes/oneclick# kubectl exec -it robot-964706867 /bin/bash
Error from server (NotFound): pods "robot-964706867" not found
root@obriensystemsucont0:~/onap/oom/kubernetes/oneclick# kubectl exec -it robot /bin/bash
Error from server (NotFound): pods "robot" not found
root@obriensystemsucont0:~/onap/oom/kubernetes/oneclick# kubectl exec -it onap-robot /bin/bash

https://github.com/kubernetes/kubernetes/releases/latest

https://github.com/kubernetes/kubernetes/releases/tag/v1.7.0

https://github.com/kubernetes/kubernetes/releases/download/v1.7.0/kubernetes.tar.gz

tar -xvf kubernetes.tar

optional build from source
cd kubernetes/

vi Vagrantfile
cat README.md
ls client/
git clone https://github.com/kubernetes/kubernetes
systemctl start docker
docker ps
cd kubernetes/
make quick-release

go directly to binaries

/run/media/root/sec/onap_kub/kubernetes/cluster

./get-kube-binaries.sh

export Path=/run/media/root/sec/onap_kub/kubernetes/client/bin:$PATH

[root@obrien-b2 server]# pwd

/run/media/root/sec/onap_kub/kubernetes/server

kubernetes-manifests.tar.gz  kubernetes-salt.tar.gz  kubernetes-server-linux-amd64.tar.gz  README

tar -xvf kubernetes-server-linux-amd64.tar.gz

/run/media/root/sec/onap_kub/kubernetes/server/kubernetes/server/bin

build images

[root@obrien-b2 etcd]# make  

[root@obrien-b2 etcd]# pwd
/run/media/root/sec/onap_kub/kubernetes/cluster/images/etcd

    /go/src/github.com/golang/glog (from $GOPATH)
src/k8s.io/kubernetes/cluster/images/etcd/attachlease/attachlease.go:26:2: cannot find package "golang.org/x/net/context" in any of:
    /usr/local/go/src/golang.org/x/net/context (from $GOROOT)
    /go/src/golang.org/x/net/context (from $GOPATH)

(go lang required - adjust google docs)

https://golang.org/doc/install?download=go1.8.3.linux-amd64.tar.gz

NODE_VCPUS = 1

NODE_MEMORY_SIZE = 2048

to (for a 5820K on 64G for example)

NODE_VCPUS = 8

NODE_MEMORY_SIZE = 32768

curl -O https://storage.googleapis.com/kubernetes-release/release/v1.6.1/bin/darwin/amd64/kubectl

chmod +x kubectl

skipped (mv kubectl /usr/local/bin/kubectl) - already there

ls /usr/local/bin/kubectl 

git clone https://github.com/coreos/coreos-kubernetes.git

cd coreos-kubernetes/single-node/

vagrant box update

sudo ln -sf /usr/local/bin/openssl /opt/vagrant/embedded/bin/openssl

vagrant up

Wait at least 5 min (Yves is good)

(rerun from here)

export KUBECONFIG="${KUBECONFIG}:$(pwd)/kubeconfig"

kubectl config use-context vagrant-single

obrienbiometrics:single-node michaelobrien$ export KUBECONFIG="${KUBECONFIG}:$(pwd)/kubeconfig"

obrienbiometrics:single-node michaelobrien$ kubectl config use-context vagrant-single

Switched to context "vagrant-single".

obrienbiometrics:single-node michaelobrien$ kubectl proxy &

[1] 4079

obrienbiometrics:single-node michaelobrien$ Starting to serve on 127.0.0.1:8001

goto

http://localhost:8001/ui

$ kubectl get nodes

$ kubectl get service --all-namespaces

$ kubectl cluster-info

git clone ssh://michaelobrien@gerrit.onap.org:29418/oom

cd oom/kubernetes/oneclick/

obrienbiometrics:oneclick michaelobrien$ ./createAll.bash -n onap

**** Done ****obrienbiometrics:oneclick michaelobrien$ kubectl get service --all-namespaces

...

onap-vid              vid-server             10.3.0.31    <nodes>       8080:30200/TCP                                                               32s

obrienbiometrics:oneclick michaelobrien$ kubectl get pods --all-namespaces

NAMESPACE             NAME                                    READY     STATUS              RESTARTS   AGE

kube-system           heapster-v1.2.0-4088228293-3k7j1        2/2       Running             2          4h

kube-system           kube-apiserver-172.17.4.99              1/1       Running             1          4h

kube-system           kube-controller-manager-172.17.4.99     1/1       Running             1          4h

kube-system           kube-dns-782804071-jg3nl                4/4       Running             4          4h

kube-system           kube-dns-autoscaler-2715466192-k45qg    1/1       Running             1          4h

kube-system           kube-proxy-172.17.4.99                  1/1       Running             1          4h

kube-system           kube-scheduler-172.17.4.99              1/1       Running             1          4h

kube-system           kubernetes-dashboard-3543765157-qtnnj   1/1       Running             1          4h

onap-aai              aai-service-346921785-w3r22             0/1       Init:0/1            0          1m

...

reset

obrienbiometrics:single-node michaelobrien$ rm -rf ~/.vagrant.d/boxes/coreos-alpha/

curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl

 chmod +x ./kubectl 

sudo mv ./kubectl /usr/local/bin/kubectl

kubectl cluster-info

kubectl completion -h

brew install bash-completion

curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.19.0/minikube-darwin-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/

minikube start --vm-driver=vmwarefusion

kubectl run hello-minikube --image=gcr.io/google_containers/echoserver:1.4 --port=8080

kubectl expose deployment hello-minikube --type=NodePort

kubectl get pod

curl $(minikube service hello-minikube --url)

minikube stop

[root@obrien-mbp oneclick]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ee02bbab2037 rhel7/kubernetes-scheduler "/usr/bin/kube-schedu" 40 hours ago Up 40 hours k8s_kube-scheduler.4e069b78_kube-scheduler-127.0.0.1_default_78147ee23cd674839c926daaa58595e5_f4ada53e
f5031b2923ca rhel7/kubernetes-apiserver "/usr/bin/kube-apiser" 40 hours ago Up 40 hours k8s_kube-apiserver.41e368d_kube-apiserver-127.0.0.1_default_ab6617fd8366917b3d6b8c7bb6cbcfcf_8d671f6c
4c5e96ea1074 registry.access.redhat.com/rhel7/pod-infrastructure:latest "/pod" 40 hours ago Up 40 hours k8s_POD.ae8ee9ac_kube-scheduler-127.0.0.1_default_78147ee23cd674839c926daaa58595e5_0ce93fa0
3316c73036fc registry.access.redhat.com/rhel7/pod-infrastructure:latest "/pod" 40 hours ago Up 40 hours k8s_POD.ae8ee9ac_kube-apiserver-127.0.0.1_default_ab6617fd8366917b3d6b8c7bb6cbcfcf_8c0dda0f

Uninstall docker-se (we installed earlier)

Follow https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html-single/getting_started_with_kubernetes/

subscription-manager repos --enable=rhel-7-server-optional-rpms
sudo yum remove docker-ce
sudo yum remove docker-ce-selinux
yum install docker kubernetes-client kubernetes-node etcd
docker ps
systemctl disable firewalld
systemctl stop firewalld
yum install docker-distribution
systemctl start docker-distribution
systemctl enable docker-distribution
systemctl is-active docker-distribution
docker images
systemctl start docker
docker ps
docker images
docker pull registry.access.redhat.com/rhel7/kubernetes-apiserver
docker pull registry.access.redhat.com/rhel7/kubernetes-controller-mgr
docker pull registry.access.redhat.com/rhel7/kubernetes-scheduler
mkdir /etc/kubernetes/manifests
vi /etc/kubernetes/manifests/apiserver-pod.json
vi /etc/kubernetes/manifests/controller-mgr-pod.json
vi /etc/kubernetes/manifests/scheduler-pod.json
vi /etc/kubernetes/kubelet 
vi kubestart.sh
chmod 777 kubestart.sh

[root@obrien-mbp opt]# ./kubestart.sh 

[root@obrien-mbp opt]# ss -tulnp | grep -E "(kube)|(etcd)"

[root@obrien-mbp opt]# curl -s -L http://localhost:2379/version
{"etcdserver":"3.1.7","etcdcluster":"3.1.0"}[root@obrien-mbp opt]#