Kubernetes : पॉड्स तैनात करें2023/11/16

Kubernetes क्लस्टर पर पॉड्स और अन्य बनाने के लिए यह बुनियादी ऑपरेशन है।

[1]	पॉड्स बनाएं या हटाएं।

# [test-nginx] पॉड्स चलाएँ

[root@dlp ~]#

kubectl create deployment test-nginx --image=nginx

deployment.apps/test-nginx created

[root@dlp ~]#

kubectl get pods

NAME                          READY   STATUS    RESTARTS   AGE
test-nginx-5ccf576fbd-255n2   1/1     Running   0          13s

# [test-nginx] पॉड के लिए पर्यावरण चर दिखाएं

[root@dlp ~]#

kubectl exec test-nginx-5ccf576fbd-255n2 -- env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
TERM=xterm
HOSTNAME=test-nginx-5ccf576fbd-255n2
KUBERNETES_PORT_443_TCP_ADDR=10.96.0.1
KUBERNETES_SERVICE_HOST=10.96.0.1
KUBERNETES_SERVICE_PORT=443
KUBERNETES_SERVICE_PORT_HTTPS=443
KUBERNETES_PORT=tcp://10.96.0.1:443
KUBERNETES_PORT_443_TCP=tcp://10.96.0.1:443
KUBERNETES_PORT_443_TCP_PROTO=tcp
KUBERNETES_PORT_443_TCP_PORT=443
NGINX_VERSION=1.25.3
NJS_VERSION=0.8.2
PKG_RELEASE=1~bookworm
HOME=/root

# [test-nginx] पॉड तक शेल पहुंच

[root@dlp ~]#

kubectl exec -it test-nginx-5ccf576fbd-255n2 -- bash

root@test-nginx-5ccf576fbd-255n2:/#

hostname

test-nginx-5ccf576fbd-255n2

root@test-nginx-5ccf576fbd-255n2:/#

exit

# [test-nginx] पॉड के लॉग दिखाएं

[root@dlp ~]#

kubectl logs test-nginx-5ccf576fbd-255n2

/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Sourcing /docker-entrypoint.d/15-local-resolvers.envsh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2023/11/16 05:33:27 [notice] 1#1: using the "epoll" event method
2023/11/16 05:33:27 [notice] 1#1: nginx/1.25.3
2023/11/16 05:33:27 [notice] 1#1: built by gcc 12.2.0 (Debian 12.2.0-14)
2023/11/16 05:33:27 [notice] 1#1: OS: Linux 6.5.11-300.fc39.x86_64
2023/11/16 05:33:27 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2023/11/16 05:33:27 [notice] 1#1: start worker processes
.....
.....

# फली को स्केल करें

[root@dlp ~]#

kubectl scale deployment test-nginx --replicas=3

deployment.extensions/test-nginx scaled

[root@dlp ~]#

kubectl get pods -o wide

NAME                          READY   STATUS    RESTARTS   AGE     IP                NODE               NOMINATED NODE   READINESS GATES
test-nginx-5ccf576fbd-255n2   1/1     Running   0          3m20s   192.168.241.129   node02.srv.world   <none>           <none>
test-nginx-5ccf576fbd-mkwfk   1/1     Running   0          17s     192.168.40.193    node01.srv.world   <none>           <none>
test-nginx-5ccf576fbd-pxv9h   1/1     Running   0          17s     192.168.241.130   node02.srv.world   <none>           <none>

# सेवा सेट करें

[root@dlp ~]#

kubectl expose deployment test-nginx --type="NodePort" --port 80

service "test-nginx" exposed

[root@dlp ~]#

kubectl get services test-nginx

NAME         TYPE       CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
test-nginx   NodePort   10.107.189.90   <none>        80:30492/TCP   3s

# पहुंच सत्यापित करें

[root@dlp ~]#

curl 10.107.189.90

<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
.....
.....
<p><em>Thank you for using nginx.</em></p>
</body>
</html>

# सेवा हटाएँ

[root@dlp ~]#

kubectl delete services test-nginx

service "test-nginx" deleted

# पॉड्स हटाएं

[root@dlp ~]#

kubectl delete deployment test-nginx

deployment.extensions "test-nginx" deleted

मिलान सामग्री