To check the status of objects in a namespace use the following command:
$ kubectl --namespace <namespace> get nodes,pod,service,secret,pv,pvc,ingress -o wide
Output will be similar to the following:
$ kubectl --namespace oudns get nodes,pod,service,secret,pv,pvc,ingress -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod/oudsm-1 1/1 Running 0 22h 10.244.0.19 100.102.51.238 <none> <none>
pod/oudsm-2 1/1 Running 0 22h 10.244.0.20 100.102.51.238 <none> <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/oudsm-1 ClusterIP 10.96.108.200 <none> 7001/TCP,7002/TCP 22h app.kubernetes.io/instance=oudsm,app.kubernetes.io/name=oudsm,oudsm/instance=oudsm-1
service/oudsm-2 ClusterIP 10.96.96.12 <none> 7001/TCP,7002/TCP 22h app.kubernetes.io/instance=oudsm,app.kubernetes.io/name=oudsm,oudsm/instance=oudsm-2
service/oudsm-lbr ClusterIP 10.96.41.201 <none> 7001/TCP,7002/TCP 22h app.kubernetes.io/instance=oudsm,app.kubernetes.io/name=oudsm
NAME TYPE DATA AGE
secret/default-token-w4jft kubernetes.io/service-account-token 3 32d
secret/oudsm-creds opaque 2 22h
secret/oudsm-token-ksr4g kubernetes.io/service-account-token 3 22h
secret/sh.helm.release.v1.oudsm.v1 helm.sh/release.v1 1 22h
secret/sh.helm.release.v1.oudsm.v2 helm.sh/release.v1 1 21h
secret/sh.helm.release.v1.oudsm.v3 helm.sh/release.v1 1 19h
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE VOLUMEMODE
persistentvolume/oudsm-pv 30Gi RWX Retain Bound myoudns/oudsm-pvc manual 22h Filesystem
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE VOLUMEMODE
persistentvolumeclaim/oudsm-pvc Bound oudsm-pv 30Gi RWX manual 22h Filesystem
NAME HOSTS ADDRESS PORTS AGE
ingress.extensions/oudsm-ingress-nginx oudsm-1,oudsm-2,oudsm + 1 more... 100.102.51.230 80 19h
Include/exclude elements (nodes,pod,service,secret,pv,pvc,ingress) as required.
To view logs for a POD use the following command:
$ kubectl logs <pod> -n <namespace>
For example:
$ kubectl logs oudsm-1 -n oudns
Output will depend on the application running in the POD.
Details about a POD can be viewed using the kubectl describe command:
$ kubectl describe pod <pod> -n <namespace>
For example:
$ kubectl describe pod oudsm-1 -n oudns
Name: oudsm-1
Namespace: oudns
Priority: 0
Node: 10.252.12.103/10.252.12.103
Start Time: Thu, 02 Sep 2021 04:37:41 -0700
Labels: app.kubernetes.io/instance=oudsm
app.kubernetes.io/managed-by=Helm
app.kubernetes.io/name=oudsm
app.kubernetes.io/version=12.2.1.4.0
helm.sh/chart=oudsm-0.1
oudsm/instance=oudsm-1
Annotations: meta.helm.sh/release-name: oudsm
meta.helm.sh/release-namespace: oudns
Status: Running
IP: 10.244.3.33
IPs:
IP: 10.244.3.33
Containers:
oudsm:
Container ID: docker://583080692e2957d2a567350d497f88063ed79dfb3c52e717322
afdafa94d2ca4
Image: oracle/oudsm:12.2.1.4.0-8-ol7-210721.0755
Image ID: docker://sha256:91cbafb6b7f9b2b76a61d8d4df9babef570d3f88f8a0
72eb0966fdec3324cab9
Ports: 7001/TCP, 7002/TCP
Host Ports: 0/TCP, 0/TCP
State: Running
Started: Thu, 02 Sep 2021 04:37:43 -0700
Ready: True
Restart Count: 0
Liveness: http-get http://:7001/oudsm delay=1200s timeout=15s period=6
0s #success=1 #failure=3
Readiness: http-get http://:7001/oudsm delay=900s timeout=15s period=30
s #success=1 #failure=3
Environment:
DOMAIN_NAME: oudsmdomain-1
ADMIN_USER: <set to the key 'adminUser' in secret 'oudsm-creds'>
Optional: false
ADMIN_PASS: <set to the key 'adminPass' in secret 'oudsm-creds'>
Optional: false
ADMIN_PORT: 7001
ADMIN_SSL_PORT: 7002
WLS_PLUGIN_ENABLED: true
Mounts:
/u01/oracle/user_projects from oudsm-pv (rw)
/var/run/secrets/kubernetes.io/serviceaccount from oudsm-token-gvv65 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
oudsm-pv:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in
the same namespace)
ClaimName: oudsm-pvc
ReadOnly: false
oudsm-token-gvv65:
Type: Secret (a volume populated by a Secret)
SecretName: oudsm-token-gvv65
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events: <none>