KubernetesでPodの詳細をgetコマンドで確認する方法

KubernetesでPod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 pod ポッド名 -o yaml

1	kubectl get pod ポッド名 -o yaml

試してみます。

root@controlplane:~# kubectl get pod nginx -o yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: "2022-02-06T09:23:21Z"
labels:
run: nginx
managedFields:
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:metadata:
f:labels:
.: {}
f:run: {}
f:spec:
f:containers:
k:{"name":"nginx"}:
.: {}
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-run
operation: Update
time: "2022-02-06T09:23:21Z"
- 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":"10.244.0.4"}:
.: {}
f:ip: {}
f:startTime: {}
manager: kubelet
operation: Update
time: "2022-02-06T09:23:32Z"
name: nginx
namespace: default
resourceVersion: "3081"
uid: a3fcf8ec-7099-4183-a6d9-5f3b64e4ff77
spec:
containers:
- image: nginx
imagePullPolicy: Always
name: nginx
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: default-token-pp8wl
readOnly: true
dnsPolicy: ClusterFirst
enableServiceLinks: true
nodeName: controlplane
preemptionPolicy: PreemptLowerPriority
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-pp8wl
secret:
defaultMode: 420
secretName: default-token-pp8wl
status:
conditions:
- lastProbeTime: null
lastTransitionTime: "2022-02-06T09:23:21Z"
status: "True"
type: Initialized
- lastProbeTime: null
lastTransitionTime: "2022-02-06T09:23:32Z"
status: "True"
type: Ready
- lastProbeTime: null
lastTransitionTime: "2022-02-06T09:23:32Z"
status: "True"
type: ContainersReady
- lastProbeTime: null
lastTransitionTime: "2022-02-06T09:23:21Z"
status: "True"
type: PodScheduled
containerStatuses:
- containerID: docker://8175a05af577dd7342242988da4f336aa7dd189484f5b2ca3f32f3b202d4a780
image: nginx:latest
imageID: docker-pullable://nginx@sha256:2834dc507516af02784808c5f48b7cbe38b8ed5d0f4837f16e78d00deb7e7767
lastState: {}
name: nginx
ready: true
restartCount: 0
started: true
state:
running:
startedAt: "2022-02-06T09:23:31Z"
hostIP: 10.14.241.6
phase: Running
podIP: 10.244.0.4
podIPs:
- ip: 10.244.0.4
qosClass: BestEffort
startTime: "2022-02-06T09:23:21Z"
root@controlplane:~#

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

root@controlplane:~# kubectl get pod nginx -o yaml

apiVersion: v1

kind: Pod

metadata:

creationTimestamp: "2022-02-06T09:23:21Z"

labels:

run: nginx

managedFields:

- apiVersion: v1

fieldsType: FieldsV1

fieldsV1:

f:metadata:

f:labels:

.: {}

f:run: {}

f:spec:

f:containers:

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

.: {}

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-run

operation: Update

time: "2022-02-06T09:23:21Z"

- 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":"10.244.0.4"}:

.: {}

f:ip: {}

f:startTime: {}

manager: kubelet

operation: Update

time: "2022-02-06T09:23:32Z"

namespace: default

resourceVersion: "3081"

uid: a3fcf8ec-7099-4183-a6d9-5f3b64e4ff77

spec:

containers:

- image: nginx

imagePullPolicy: Always

resources: {}

terminationMessagePath: /dev/termination-log

terminationMessagePolicy: File

volumeMounts:

- mountPath: /var/run/secrets/kubernetes.io/serviceaccount

readOnly: true

dnsPolicy: ClusterFirst

enableServiceLinks: true

nodeName: controlplane

preemptionPolicy: PreemptLowerPriority

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-pp8wl

secret:

defaultMode: 420

secretName: default-token-pp8wl

status:

conditions:

- lastProbeTime: null

lastTransitionTime: "2022-02-06T09:23:21Z"

status: "True"

type: Initialized

- lastProbeTime: null

lastTransitionTime: "2022-02-06T09:23:32Z"

status: "True"

type: Ready

- lastProbeTime: null

lastTransitionTime: "2022-02-06T09:23:32Z"

status: "True"

type: ContainersReady

- lastProbeTime: null

lastTransitionTime: "2022-02-06T09:23:21Z"

status: "True"

type: PodScheduled

containerStatuses:

- containerID: docker://8175a05af577dd7342242988da4f336aa7dd189484f5b2ca3f32f3b202d4a780

image: nginx:latest

imageID: docker-pullable://nginx@sha256:2834dc507516af02784808c5f48b7cbe38b8ed5d0f4837f16e78d00deb7e7767

lastState: {}

ready: true

restartCount: 0

started: true

state:

running:

startedAt: "2022-02-06T09:23:31Z"

hostIP: 10.14.241.6

phase: Running

podIP: 10.244.0.4

podIPs:

- ip: 10.244.0.4

qosClass: BestEffort

startTime: "2022-02-06T09:23:21Z"

root@controlplane:~#