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Prafull Ladha prafull01

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@prafull01
prafull01 / cd_cmd
Created June 15, 2018 08:52
$ mkdir -p /etc/kubernetes/pki/etcd
$ cd /etc/kubernetes/pki/etcd
@prafull01
prafull01 / cfssl_install_cmd
Created June 15, 2018 08:51
$ curl -o /usr/local/bin/cfssl https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
$ curl -o /usr/local/bin/cfssljson https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
$ chmod +x /usr/local/bin/cfssl*
$ export PATH=$PATH:/usr/local/bin
@prafull01
prafull01 / create_deployment
Created June 15, 2018 06:17
[root@master-1 centos]# kubectl create -f nginx.yaml
deployment.apps "nginx-deployment" created
[root@master-1 centos]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE
nginx-deployment-75675f5897-884kc 1/1 Running 0 10s 10.117.113.98 master-2
nginx-deployment-75675f5897-crgxt 1/1 Running 0 10s 10.117.113.2 master-1
@prafull01
prafull01 / notready_pods
Created June 15, 2018 06:16
[root@master-0 centos]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
kube-apiserver-master-0 1/1 Unknown 0 4h
kube-apiserver-master-1 1/1 Running 0 4h
kube-apiserver-master-2 1/1 Running 0 4h
kube-controller-manager-master-0 1/1 Unknown 0 4h
kube-controller-manager-master-1 1/1 Running 0 4h
kube-controller-manager-master-2 1/1 Running 0 4h
kube-dns-86f4d74b45-wh795 3/3 Running 0 4h
kube-proxy-9ts6r 1/1 Running 0 4h
@prafull01
prafull01 / notready_nodes
Created June 15, 2018 06:15
[root@master-0 centos]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master-0 NotReady master 4h v1.10.4
master-1 Ready master 4h v1.10.4
master-2 Ready master 4h v1.10.4
@prafull01
prafull01 / ready_pods
Created June 15, 2018 06:14
root@master-0 centos]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
kube-apiserver-master-0 1/1 Running 1 1m
kube-apiserver-master-1 1/1 Running 0 4h
kube-apiserver-master-2 1/1 Running 0 4h
kube-controller-manager-master-0 1/1 Running 1 1m
kube-controller-manager-master-1 1/1 Running 0 4h
kube-controller-manager-master-2 1/1 Running 0 4h
kube-dns-86f4d74b45-wh795 3/3 Running 0 4h
kube-proxy-9ts6r 1/1 Running 0 4h
@prafull01
prafull01 / ready_nodes
Created June 15, 2018 06:14
[root@master-0 centos]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master-0 Ready master 4h v1.10.4
master-1 Ready master 4h v1.10.4
master-2 Ready master 4h v1.10.4
@prafull01
prafull01 / config.yaml
Created May 31, 2018 06:07
apiVersion: kubeadm.k8s.io/v1alpha1
kind: MasterConfiguration
api:
advertiseAddress: <master-private-ip>
etcd:
endpoints:
- http://<master0-ip-address>:2379
- http://<master1-ip-address>:2379
- http://<master2-ip-address>:2379
caFile: /etc/kubernetes/pki/etcd/ca.pem
@prafull01
prafull01 / check_apiserver.sh
Created May 31, 2018 06:03
#!/bin/sh
errorExit() {
echo "*** $*" 1>&2
exit 1
}
curl --silent --max-time 2 --insecure https://localhost:6443/ -o /dev/null || errorExit "Error GET https://localhost:6443/"
if ip addr | grep -q <VIRTUAL-IP>; then
curl --silent --max-time 2 --insecure https://<VIRTUAL-IP>:6443/ -o /dev/null || errorExit "Error GET https://<VIRTUAL-IP>:6443/"
@prafull01
prafull01 / keepalived.conf
Created May 31, 2018 06:02
! Configuration File for keepalived
global_defs {
router_id LVS_DEVEL
}
vrrp_script check_apiserver {
script "/etc/keepalived/check_apiserver.sh"
interval 3
weight -2
fall 10