Using ‘-o json’ option, you can see the pod definition as json.
Step 1: Let’s create a pod definition file and create the pod using the below definition file.
employeeServicePod.yml
apiVersion: v1
kind: Pod
metadata:
name: employee-service
labels:
app: employee-service
author: krishna
serviceType: webservice
spec:
containers:
- name: employee-service-container
image: jboss/wildfly
Create the pod by executing the below command.
kubectl create -f employeeServicePod.yml
$kubectl create -f employeeServicePod.yml pod/employee-service created
You can query pods by executing ‘get pods’ command.
$kubectl get pods
NAME READY STATUS RESTARTS AGE
employee-service 1/1 Running 0 7s
Step 2: Let’s extract the pod definition using the option ‘-o json’
kubectl get pods {podName} -o json
$kubectl get pods employee-service -o json
{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"creationTimestamp": "2020-06-11T04:48:53Z",
"labels": {
"app": "employee-service",
"author": "krishna",
"serviceType": "webservice"
},
"managedFields": [
{
"apiVersion": "v1",
"fieldsType": "FieldsV1",
"fieldsV1": {
"f:metadata": {
"f:labels": {
".": {},
"f:app": {},
"f:author": {},
"f:serviceType": {}
}
},
"f:spec": {
"f:containers": {
"k:{\"name\":\"employee-service-container\"}": {
".": {},
"f:image": {},
"f:imagePullPolicy": {},
"f:name": {},
"f:resources": {},
"f:terminationMessagePath": {},
"f:terminationMessagePolicy": {}
}
},
"f:dnsPolicy": {},
"f:enableServiceLinks": {},
"f:restartPolicy": {},
"f:schedulerName": {},
"f:securityContext": {},
"f:terminationGracePeriodSeconds": {}
}
},
"manager": "kubectl",
"operation": "Update",
"time": "2020-06-11T04:48:53Z"
},
{
"apiVersion": "v1",
"fieldsType": "FieldsV1",
"fieldsV1": {
"f:status": {
"f:conditions": {
"k:{\"type\":\"ContainersReady\"}": {
".": {},
"f:lastProbeTime": {},
"f:lastTransitionTime": {},
"f:status": {},
"f:type": {}
},
"k:{\"type\":\"Initialized\"}": {
".": {},
"f:lastProbeTime": {},
"f:lastTransitionTime": {},
"f:status": {},
"f:type": {}
},
"k:{\"type\":\"Ready\"}": {
".": {},
"f:lastProbeTime": {},
"f:lastTransitionTime": {},
"f:status": {},
"f:type": {}
}
},
"f:containerStatuses": {},
"f:hostIP": {},
"f:phase": {},
"f:podIP": {},
"f:podIPs": {
".": {},
"k:{\"ip\":\"172.17.0.7\"}": {
".": {},
"f:ip": {}
}
},
"f:startTime": {}
}
},
"manager": "kubelet",
"operation": "Update",
"time": "2020-06-11T04:48:59Z"
}
],
"name": "employee-service",
"namespace": "default",
"resourceVersion": "399974",
"selfLink": "/api/v1/namespaces/default/pods/employee-service",
"uid": "04bfa9aa-70cd-4f61-9562-9235a5dbc4ea"
},
"spec": {
"containers": [
{
"image": "jboss/wildfly",
"imagePullPolicy": "Always",
"name": "employee-service-container",
"resources": {},
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"volumeMounts": [
{
"mountPath": "/var/run/secrets/kubernetes.io/serviceaccount",
"name": "default-token-w7rp7",
"readOnly": true
}
]
}
],
"dnsPolicy": "ClusterFirst",
"enableServiceLinks": true,
"nodeName": "minikube",
"priority": 0,
"restartPolicy": "Always",
"schedulerName": "default-scheduler",
"securityContext": {},
"serviceAccount": "default",
"serviceAccountName": "default",
"terminationGracePeriodSeconds": 30,
"tolerations": [
{
"effect": "NoExecute",
"key": "node.kubernetes.io/not-ready",
"operator": "Exists",
"tolerationSeconds": 300
},
{
"effect": "NoExecute",
"key": "node.kubernetes.io/unreachable",
"operator": "Exists",
"tolerationSeconds": 300
}
],
"volumes": [
{
"name": "default-token-w7rp7",
"secret": {
"defaultMode": 420,
"secretName": "default-token-w7rp7"
}
}
]
},
"status": {
"conditions": [
{
"lastProbeTime": null,
"lastTransitionTime": "2020-06-11T04:48:53Z",
"status": "True",
"type": "Initialized"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-06-11T04:48:59Z",
"status": "True",
"type": "Ready"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-06-11T04:48:59Z",
"status": "True",
"type": "ContainersReady"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-06-11T04:48:53Z",
"status": "True",
"type": "PodScheduled"
}
],
"containerStatuses": [
{
"containerID": "docker://1650217eb9aa7e24990fd0e83d2435a085d8efa34da5253936700e6227c356a1",
"image": "jboss/wildfly:latest",
"imageID": "docker-pullable://jboss/wildfly@sha256:67a4f90b213bc2600d08d90e82df58be83813d118d163fbcc8765b6eeaade7e6",
"lastState": {},
"name": "employee-service-container",
"ready": true,
"restartCount": 0,
"started": true,
"state": {
"running": {
"startedAt": "2020-06-11T04:48:58Z"
}
}
}
],
"hostIP": "192.168.99.100",
"phase": "Running",
"podIP": "172.17.0.7",
"podIPs": [
{
"ip": "172.17.0.7"
}
],
"qosClass": "BestEffort",
"startTime": "2020-06-11T04:48:53Z"
}
}
No comments:
Post a Comment