cloud:kubernetes:installation
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cloud:kubernetes:installation [2017/04/04 10:26] frank |
cloud:kubernetes:installation [2017/04/04 13:48] (current) frank |
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| Line 12: | Line 12: | ||
| * On nodes: | * On nodes: | ||
| * kubernetes-client, kubernetes-node - 1.5.2-0.2.gitc55cf2b.el7 | * kubernetes-client, kubernetes-node - 1.5.2-0.2.gitc55cf2b.el7 | ||
| + | |||
| + | |||
| + | == Hostnames, IP, subnets, IP ranges == | ||
| + | * master and node IPs | ||
| + | * master: node-1(192.168.50.101/24, IP address is on eth1) | ||
| + | * nodes: node2(192.168.50.102/24), node-3(192.168.50.103/24), IP Address are on eth1 | ||
| + | * kubernetes cluster IP range: 10.254.0.0/16 | ||
| + | * flannel: iface on eth1, range: 172.30.0.0/16, subnetLen:24, type: vxlan | ||
| + | |||
| + | == Ports == | ||
| + | * etcd: 2379 | ||
| + | * kube-apiserver: 8080 | ||
| + | * kubelet: 10250 | ||
| + | * | ||
| == Services == | == Services == | ||
| Line 65: | Line 79: | ||
| FLANNEL_ETCD_ENDPOINTS="http://node-1:2379" | FLANNEL_ETCD_ENDPOINTS="http://node-1:2379" | ||
| FLANNEL_ETCD_PREFIX="/kube-centos/network" | FLANNEL_ETCD_PREFIX="/kube-centos/network" | ||
| + | FLANNEL_OPTIONS="-iface=eth1" | ||
| </code> | </code> | ||
| * manual step to configure flannel with etcd<code> | * manual step to configure flannel with etcd<code> | ||
| Line 77: | Line 92: | ||
| /usr/bin/kube-controller-manager --logtostderr=true --v=0 --master=http://node-1:8080 | /usr/bin/kube-controller-manager --logtostderr=true --v=0 --master=http://node-1:8080 | ||
| /usr/bin/kube-scheduler --logtostderr=true --v=0 --master=http://node-1:8080 | /usr/bin/kube-scheduler --logtostderr=true --v=0 --master=http://node-1:8080 | ||
| - | /usr/bin/flanneld -etcd-endpoints=http://node-1:2379 -etcd-prefix=/kube-centos/network | + | /usr/bin/flanneld -etcd-endpoints=http://node-1:2379 -etcd-prefix=/kube-centos/network -iface=eth1 |
| </code> | </code> | ||
| * nodes<code> | * nodes<code> | ||
| /usr/bin/kubelet --logtostderr=true --v=0 --api-servers=http://node-1:8080 --address=0.0.0.0 --port=10250 --hostname-override=node-2 --allow-privileged=false | /usr/bin/kubelet --logtostderr=true --v=0 --api-servers=http://node-1:8080 --address=0.0.0.0 --port=10250 --hostname-override=node-2 --allow-privileged=false | ||
| /usr/bin/kube-proxy --logtostderr=true --v=0 --master=http://node-1:8080 | /usr/bin/kube-proxy --logtostderr=true --v=0 --master=http://node-1:8080 | ||
| + | /usr/bin/flanneld -etcd-endpoints=http://node-1:2379 -etcd-prefix=/kube-centos/network -iface=eth1 | ||
| </code> | </code> | ||
| - | == Hostnames, subnets, IP ranges == | + | == First pod - Hello Kubernetes! == |
| - | * master and node IPs | + | <code> |
| - | * master: node-1(192.168.50.101/24) | + | $ kubectl run node-hello --image=gcr.io/google-samples/node-hello:1.0 --port=8080 |
| - | * nodes: node2(192.168.50.102/24), node-3(192.168.50.103/24) | + | |
| - | * kubernetes cluster IP range: 10.254.0.0/16 | + | |
| - | * flannel: 172.30.0.0/16, subnetLen:24, type: vxlan | + | |
| - | == Ports == | + | $ kubectl get deploy |
| - | * etcd: 2379 | + | NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE |
| - | * kube-apiserver: 8080 | + | node-hello 1 1 1 1 1h |
| - | * kubelet: 10250 | + | |
| + | $ kubectl get po | ||
| + | NAME READY STATUS RESTARTS AGE | ||
| + | node-hello-3526609615-fqf4k 1/1 Running 0 1h | ||
| - | == First pod == | + | |
| + | $ kubectl expose deploy/node-hello --type=NodePort | ||
| + | service "node-hello" exposed | ||
| + | |||
| + | $ kubectl get svc -l run=node-hello | ||
| + | NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE | ||
| + | hello-node 10.254.139.8 <nodes> 8080:30881/TCP 11s | ||
| + | |||
| + | $ kubectl get po -l run=node-hello -o wide | ||
| + | NAME READY STATUS RESTARTS AGE IP NODE | ||
| + | node-hello-3526609615-fqf4k 1/1 Running 0 1h 172.30.5.2 node-3 | ||
| + | |||
| + | $ curl http://node-3:30881 | ||
| + | Hello Kubernetes! | ||
| + | |||
| + | $ curl http://node-2:30881 | ||
| + | Hello Kubernetes! | ||
| + | |||
| + | |||
| + | </code> | ||
| + | |||
| + | == 2nd pod with replicas == | ||
| <code> | <code> | ||
| - | $ kubectl run hello-node --image=gcr.io/google-samples/node-hello:1.0 --port=8080 | + | $ kubectl run kubernetes-bootcamp --image=jocatalin/kubernetes-bootcamp:v1 --port=8080 |
| - | $ kubectl run k8s-bootcamp --image=jocatalin/kubernetes-bootcamp:v1 --port=8080 | + | deployment "kubernetes-bootcamp" created |
| + | $ kubectl get deploy | ||
| + | NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE | ||
| + | kubernetes-bootcamp 1 1 1 1 16s | ||
| - | $ kubectl get deployment hello-node | ||
| - | NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE | ||
| - | hello-node 1 1 1 1 2d | ||
| - | $ kubectl get pods | + | $ kubectl get po |
| - | NAME READY STATUS RESTARTS AGE | + | NAME READY STATUS RESTARTS AGE |
| - | hello-node-3526609615-5slx8 1/1 Running 0 2d | + | kubernetes-bootcamp-2019480069-jtswf 1/1 Running 0 18s |
| - | $ kubectl expose deployment hello-node --type=NodePort | + | $ kubectl expose deploy/kubernetes-bootcamp --type=NodePort |
| + | service "kubernetes-bootcamp" exposed | ||
| - | $ kubectl get service hello-node | + | $ kubectl get svc |
| - | NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE | + | NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE |
| - | hello-node 10.254.65.168 <nodes> 8080:32260/TCP 2d | + | kubernetes 10.254.0.1 <none> 443/TCP 1h |
| + | kubernetes-bootcamp 10.254.195.177 <nodes> 8080:32693/TCP 13s | ||
| - | $ kubectl get pods --selector="run=hello-node" --output=wide | + | $ kubectl get po -o wide |
| - | NAME READY STATUS RESTARTS AGE IP NODE | + | NAME READY STATUS RESTARTS AGE IP NODE |
| - | hello-node-3526609615-5slx8 1/1 Running 0 2d 172.30.65.2 node-2 | + | kubernetes-bootcamp-2019480069-jtswf 1/1 Running 0 1m 172.30.93.2 node-2 |
| - | $ curl http://node-2:32260 | + | $ curl http://node-2:32693 |
| - | Hello Kubernetes! | + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-jtswf | v=1 |
| + | $ curl http://node-2:32693 | ||
| + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-jtswf | v=1 | ||
| + | $ kubectl logs kubernetes-bootcamp-2019480069-jtswf | ||
| + | Kubernetes Bootcamp App Started At: 2017-04-04T19:45:42.811Z | Running On: kubernetes-bootcamp-2019480069-jtswf | ||
| + | Running On: kubernetes-bootcamp-2019480069-jtswf | Total Requests: 1 | App Uptime: 112.899 seconds | Log Time: 2017-04-04T19:47:35.710Z | ||
| + | Running On: kubernetes-bootcamp-2019480069-jtswf | Total Requests: 2 | App Uptime: 127.612 seconds | Log Time: 2017-04-04T19:47:50.423Z | ||
| + | |||
| + | $ kubectl scale deploy/kubernetes-bootcamp --replicas=4 | ||
| + | deployment "kubernetes-bootcamp" scaled | ||
| + | |||
| + | $ kubectl get po -o wide | ||
| + | NAME READY STATUS RESTARTS AGE IP NODE | ||
| + | kubernetes-bootcamp-2019480069-220qd 1/1 Running 0 57m 172.30.5.3 node-3 | ||
| + | kubernetes-bootcamp-2019480069-ftzgl 1/1 Running 0 57m 172.30.5.2 node-3 | ||
| + | kubernetes-bootcamp-2019480069-jtswf 1/1 Running 0 59m 172.30.93.2 node-2 | ||
| + | kubernetes-bootcamp-2019480069-k0gkq 1/1 Running 0 57m 172.30.93.3 node-2 | ||
| + | |||
| + | $ curl http://node-2:32693 | ||
| + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-ftzgl | v=1 | ||
| + | $ curl http://node-3:32693 | ||
| + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-220qd | v=1 | ||
| + | $ curl http://node-3:32693 | ||
| + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-k0gkq | v=1 | ||
| + | $ curl http://node-2:32693 | ||
| + | Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-2019480069-jtswf | v=1 | ||
| </code> | </code> | ||
cloud/kubernetes/installation.1491326809.txt.gz · Last modified: 2017/04/04 10:26 by frank
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