Kubernetes : KubeVirt स्थापित करें2024/11/18

Kubernetes क्लस्टर में पूर्णतः वर्चुअलाइज्ड वर्चुअल मशीन तैनात करने के लिए KubeVirt स्थापित करें।

यह उदाहरण निम्न प्रकार के वातावरण पर आधारित है।

+----------------------+   +----------------------+
|  [ ctrl.srv.world ]  |   |   [ dlp.srv.world ]  |
|     Manager Node     |   |     Control Plane    |
+-----------+----------+   +-----------+----------+
        eth0|10.0.0.25             eth0|10.0.0.30
            |                          |
------------+--------------------------+-----------
            |                          |
        eth0|10.0.0.51             eth0|10.0.0.52
+-----------+----------+   +-----------+----------+
| [ node01.srv.world ] |   | [ node02.srv.world ] |
|     Worker Node#1    |   |     Worker Node#2    |
+----------------------+   +----------------------+

[1]	KubeVirt और virtctl कमांड स्थापित करें।

root@ctrl:~#

export VERSION=$(curl https://storage.googleapis.com/kubevirt-prow/release/kubevirt/kubevirt/stable.txt)

root@ctrl:~#

wget https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/kubevirt-operator.yaml

root@ctrl:~#

wget https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/kubevirt-cr.yaml

root@ctrl:~#

wget https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/virtctl-${VERSION}-linux-amd64

root@ctrl:~#

mv virtctl-${VERSION}-linux-amd64 /usr/local/bin/virtctl

root@ctrl:~#

chmod 755 /usr/local/bin/virtctl

root@ctrl:~#

kubectl apply -f kubevirt-operator.yaml

namespace/kubevirt created
customresourcedefinition.apiextensions.k8s.io/kubevirts.kubevirt.io created
priorityclass.scheduling.k8s.io/kubevirt-cluster-critical created
clusterrole.rbac.authorization.k8s.io/kubevirt.io:operator created
serviceaccount/kubevirt-operator created
role.rbac.authorization.k8s.io/kubevirt-operator created
rolebinding.rbac.authorization.k8s.io/kubevirt-operator-rolebinding created
clusterrole.rbac.authorization.k8s.io/kubevirt-operator created
clusterrolebinding.rbac.authorization.k8s.io/kubevirt-operator created
deployment.apps/virt-operator created

root@ctrl:~#

kubectl apply -f kubevirt-cr.yaml

kubevirt.kubevirt.io/kubevirt created

# कुछ मिनटों के बाद, पॉड्स निम्नानुसार शुरू हो जाएंगे

root@ctrl:~#

kubectl get pods -n kubevirt

NAME                               READY   STATUS    RESTARTS   AGE
virt-api-f97fbdff-4g7br            1/1     Running   0          80s
virt-api-f97fbdff-5gjfz            1/1     Running   0          80s
virt-controller-6bf9f4477f-5clbv   1/1     Running   0          45s
virt-controller-6bf9f4477f-c9qvl   1/1     Running   0          45s
virt-handler-66cb2                 0/1     Running   0          45s
virt-handler-qmctf                 0/1     Running   0          45s
virt-operator-59f5558dcd-5vl8f     1/1     Running   0          2m8s
virt-operator-59f5558dcd-ggn47     1/1     Running   0          2m8s

[2]	एक परीक्षण VM बनाएं और सत्यापित करें कि यह सामान्य रूप से काम करता है।

root@ctrl:~#

wget https://raw.githubusercontent.com/kubevirt/kubevirt.github.io/master/labs/manifests/vm.yaml

root@ctrl:~#

kubectl apply -f vm.yaml

virtualmachine.kubevirt.io/testvm created

root@ctrl:~#

kubectl get vms

NAME     AGE   STATUS    READY
testvm   4s    Stopped   False

# वीएम प्रारंभ करें

root@ctrl:~#

virtctl start testvm

VM testvm was scheduled to start

root@ctrl:~#

kubectl get vms

NAME     AGE   STATUS     READY
testvm   25s   Starting   False

root@ctrl:~#

kubectl get vmi

NAME     AGE   PHASE     IP               NODENAME           READY
testvm   19m   Running   192.168.40.197   node01.srv.world   True

# VM के कंसोल से कनेक्ट करें

root@ctrl:~#

virtctl console testvm

Successfully connected to testvm console. The escape sequence is ^]

login as 'cirros' user. default password: 'gocubsgo'. use 'sudo' for root.
testvm login: cirros
Password:
$ 
# होस्ट के कंसोल पर वापस जाने के लिए, Ctrl + ] कुंजी दबाएँ
# * virsh कमांड के समान ऑपरेशन
root@ctrl:~#

# VM से कनेक्ट करें
# उपयोगकर्ता नाम 'cirros' है और पासवर्ड 'gocubsgo' है

root@ctrl:~#

kubectl get pods

NAME                         READY   STATUS    RESTARTS   AGE
virt-launcher-testvm-fkccd   3/3     Running   0          45s

root@ctrl:~#

kubectl port-forward pod/virt-launcher-testvm-fkccd 222:22 &

root@ctrl:~#

ssh cirros@localhost -p 222

Handling connection for 222
The authenticity of host '[localhost]:222 ([127.0.0.1]:222)' can't be established.
ECDSA key fingerprint is SHA256:qmzNdwMbZZveblDguxJMPZ7lUT+9Tks+8/I8Uy/keFo.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '[localhost]:222' (ECDSA) to the list of known hosts.
cirros@localhost's password:
$ 
$ uname -a
Linux testvm 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64 GNU/Linux
$ cat /etc/os-release
NAME=Buildroot
VERSION=2015.05-g31af4e3-dirty
ID=buildroot
VERSION_ID=2015.05
PRETTY_NAME="Buildroot 2015.05"
$ exit
Connection to localhost closed.

# वीएम रोकें

root@ctrl:~#

virtctl stop testvm

VM testvm was scheduled to stop
root@ctrl:~#

kubectl get vms

NAME     AGE     STATUS    READY
testvm   4m30s   Stopped   False

# VM हटाएँ

root@ctrl:~#

kubectl delete vm testvm

virtualmachine.kubevirt.io "testvm" deleted
root@ctrl:~#

kubectl get vms

No resources found in default namespace.

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