KubernetesでReplicaSetの詳細をgetコマンドで確認する方法

KubernetesでReplicaSetの詳細をgetコマンドで確認する方法を紹介します。

以下のようにkubectlの「get」コマンドの「-o yaml」オプションを使用します。

kubectl get replicaset レプリカセット名 -o yaml

1	kubectl get replicaset レプリカセット名 -o yaml

試してみます。

root@controlplane:~# kubectl get replicaset nginx-6799fc88d8 -o yaml
apiVersion: apps/v1
kind: ReplicaSet
metadata:
annotations:
deployment.kubernetes.io/desired-replicas: "2"
deployment.kubernetes.io/max-replicas: "3"
deployment.kubernetes.io/revision: "1"
creationTimestamp: "2022-02-06T11:22:54Z"
generation: 1
labels:
app: nginx
pod-template-hash: 6799fc88d8
managedFields:
- apiVersion: apps/v1
fieldsType: FieldsV1
fieldsV1:
f:metadata:
f:annotations:
.: {}
f:deployment.kubernetes.io/desired-replicas: {}
f:deployment.kubernetes.io/max-replicas: {}
f:deployment.kubernetes.io/revision: {}
f:labels:
.: {}
f:app: {}
f:pod-template-hash: {}
f:ownerReferences:
.: {}
k:{"uid":"dcba7cc5-c432-4139-80b3-4909d93a110e"}:
.: {}
f:apiVersion: {}
f:blockOwnerDeletion: {}
f:controller: {}
f:kind: {}
f:name: {}
f:uid: {}
f:spec:
f:replicas: {}
f:selector: {}
f:template:
f:metadata:
f:labels:
.: {}
f:app: {}
f:pod-template-hash: {}
f:spec:
f:containers:
k:{"name":"nginx"}:
.: {}
f:image: {}
f:imagePullPolicy: {}
f:name: {}
f:resources: {}
f:terminationMessagePath: {}
f:terminationMessagePolicy: {}
f:dnsPolicy: {}
f:restartPolicy: {}
f:schedulerName: {}
f:securityContext: {}
f:terminationGracePeriodSeconds: {}
f:status:
f:availableReplicas: {}
f:fullyLabeledReplicas: {}
f:observedGeneration: {}
f:readyReplicas: {}
f:replicas: {}
manager: kube-controller-manager
operation: Update
time: "2022-02-06T11:22:57Z"
name: nginx-6799fc88d8
namespace: default
ownerReferences:
- apiVersion: apps/v1
blockOwnerDeletion: true
controller: true
kind: Deployment
name: nginx
uid: dcba7cc5-c432-4139-80b3-4909d93a110e
resourceVersion: "3997"
uid: d60f753e-cf23-4631-8ab7-27d9076de360
spec:
replicas: 2
selector:
matchLabels:
app: nginx
pod-template-hash: 6799fc88d8
template:
metadata:
creationTimestamp: null
labels:
app: nginx
pod-template-hash: 6799fc88d8
spec:
containers:
- image: nginx
imagePullPolicy: Always
name: nginx
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
dnsPolicy: ClusterFirst
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
terminationGracePeriodSeconds: 30
status:
availableReplicas: 2
fullyLabeledReplicas: 2
observedGeneration: 1
readyReplicas: 2
replicas: 2
root@controlplane:~#

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root@controlplane:~# kubectl get replicaset nginx-6799fc88d8 -o yaml

apiVersion: apps/v1

kind: ReplicaSet

metadata:

annotations:

deployment.kubernetes.io/desired-replicas: "2"

deployment.kubernetes.io/max-replicas: "3"

deployment.kubernetes.io/revision: "1"

creationTimestamp: "2022-02-06T11:22:54Z"

generation: 1

labels:

app: nginx

pod-template-hash: 6799fc88d8

managedFields:

- apiVersion: apps/v1

fieldsType: FieldsV1

fieldsV1:

f:metadata:

f:annotations:

.: {}

f:deployment.kubernetes.io/desired-replicas: {}

f:deployment.kubernetes.io/max-replicas: {}

f:deployment.kubernetes.io/revision: {}

f:labels:

.: {}

f:app: {}

f:pod-template-hash: {}

f:ownerReferences:

.: {}

k:{"uid":"dcba7cc5-c432-4139-80b3-4909d93a110e"}:

.: {}

f:apiVersion: {}

f:blockOwnerDeletion: {}

f:controller: {}

f:kind: {}

f:name: {}

f:uid: {}

f:spec:

f:replicas: {}

f:selector: {}

f:template:

f:metadata:

f:labels:

.: {}

f:app: {}

f:pod-template-hash: {}

f:spec:

f:containers:

k:{"name":"nginx"}:

.: {}

f:image: {}

f:imagePullPolicy: {}

f:name: {}

f:resources: {}

f:terminationMessagePath: {}

f:terminationMessagePolicy: {}

f:dnsPolicy: {}

f:restartPolicy: {}

f:schedulerName: {}

f:securityContext: {}

f:terminationGracePeriodSeconds: {}

f:status:

f:availableReplicas: {}

f:fullyLabeledReplicas: {}

f:observedGeneration: {}

f:readyReplicas: {}

f:replicas: {}

manager: kube-controller-manager

operation: Update

time: "2022-02-06T11:22:57Z"

namespace: default

ownerReferences:

- apiVersion: apps/v1

blockOwnerDeletion: true

controller: true

kind: Deployment

uid: dcba7cc5-c432-4139-80b3-4909d93a110e

resourceVersion: "3997"

uid: d60f753e-cf23-4631-8ab7-27d9076de360

spec:

replicas: 2

selector:

matchLabels:

app: nginx

pod-template-hash: 6799fc88d8

template:

metadata:

creationTimestamp: null

labels:

app: nginx

pod-template-hash: 6799fc88d8

spec:

containers:

- image: nginx

imagePullPolicy: Always

resources: {}

terminationMessagePath: /dev/termination-log

terminationMessagePolicy: File

dnsPolicy: ClusterFirst

restartPolicy: Always

schedulerName: default-scheduler

securityContext: {}

terminationGracePeriodSeconds: 30

status:

availableReplicas: 2

fullyLabeledReplicas: 2

observedGeneration: 1

readyReplicas: 2

replicas: 2

root@controlplane:~#