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/oud-ds-rs-0 1/1 Running 0 8m44s 10.244.0.195 <Worker Node> <none> <none>
pod/oud-ds-rs-1 1/1 Running 0 8m44s 10.244.0.194 <Worker Node> <none> <none>
pod/oud-ds-rs-2 0/1 Running 0 8m44s 10.244.0.193 <Worker Node> <none> <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/oud-ds-rs-0 ClusterIP 10.99.232.83 <none> 1444/TCP,1888/TCP,1898/TCP 8m44s kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-0
service/oud-ds-rs-1 ClusterIP 10.100.186.42 <none> 1444/TCP,1888/TCP,1898/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-1
service/oud-ds-rs-2 ClusterIP 10.104.55.53 <none> 1444/TCP,1888/TCP,1898/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-2
service/oud-ds-rs-http-0 ClusterIP 10.102.116.145 <none> 1080/TCP,1081/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-0
service/oud-ds-rs-http-1 ClusterIP 10.111.103.84 <none> 1080/TCP,1081/TCP 8m44s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-1
service/oud-ds-rs-http-2 ClusterIP 10.105.53.24 <none> 1080/TCP,1081/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-2
service/oud-ds-rs-lbr-admin ClusterIP 10.98.39.206 <none> 1888/TCP,1444/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs
service/oud-ds-rs-lbr-http ClusterIP 10.110.77.132 <none> 1080/TCP,1081/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs
service/oud-ds-rs-lbr-ldap ClusterIP 10.111.55.122 <none> 1389/TCP,1636/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs
service/oud-ds-rs-ldap-0 ClusterIP 10.108.155.81 <none> 1389/TCP,1636/TCP 8m44s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-0
service/oud-ds-rs-ldap-1 ClusterIP 10.104.88.44 <none> 1389/TCP,1636/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-1
service/oud-ds-rs-ldap-2 ClusterIP 10.105.253.120 <none> 1389/TCP,1636/TCP 8m45s app.kubernetes.io/instance=oud-ds-rs,app.kubernetes.io/name=oud-ds-rs,oud/instance=oud-ds-rs-2
NAME TYPE DATA AGE
secret/default-token-tbjr5 kubernetes.io/service-account-token 3 25d
secret/oud-ds-rs-creds opaque 8 8m48s
secret/oud-ds-rs-token-cct26 kubernetes.io/service-account-token 3 8m50s
secret/sh.helm.release.v1.oud-ds-rs.v1 helm.sh/release.v1 1 8m51s
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
persistentvolume/oud-ds-rs-pv 20Gi RWX Retain Bound oudns/oud-ds-rs-pvc manual 8m47s
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
persistentvolumeclaim/oud-ds-rs-pvc Bound oud-ds-rs-pv 20Gi RWX manual 8m48s
NAME HOSTS ADDRESS PORTS AGE
ingress.extensions/oud-ds-rs-admin-ingress-nginx oud-ds-rs-admin-0,oud-ds-rs-admin-1,oud-ds-rs-admin-2 + 2 more... 10.229.141.78 80 8m45s
ingress.extensions/oud-ds-rs-http-ingress-nginx oud-ds-rs-http-0,oud-ds-rs-http-1,oud-ds-rs-http-2 + 3 more... 10.229.141.78 80 8m45s
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 oud-ds-rs-0 -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 oud-ds-rs-0 -n oudns
Name: oud-ds-rs-0
Namespace: oudns
Priority: 0
Node: 10.89.73.203/10.89.73.203
Start Time: Wed, 07 Oct 2020 07:30:27 -0700
Labels: app.kubernetes.io/instance=oud-ds-rs
app.kubernetes.io/managed-by=Helm
app.kubernetes.io/name=oud-ds-rs
app.kubernetes.io/version=12.2.1.4.0
helm.sh/chart=oud-ds-rs-0.1
oud/instance=oud-ds-rs-0
Annotations: meta.helm.sh/release-name: oud-ds-rs
meta.helm.sh/release-namespace: oudns
Status: Running
IP: 10.244.1.90
IPs:
IP: 10.244.1.90
Containers:
oud-ds-rs:
Container ID: docker://e3b79a283f56870e6d702cf8c2cc7aafa09a242f7a2cd543d8014a24aa219903
Image: oracle/oud:12.2.1.4.0
Image ID: docker://sha256:8a937042bef357fdeb09ce20d34332b14d1f1afe3ccb9f9b297f6940fdf32a76
Ports: 1444/TCP, 1888/TCP, 1389/TCP, 1636/TCP, 1080/TCP, 1081/TCP, 1898/TCP
Host Ports: 0/TCP, 0/TCP, 0/TCP, 0/TCP, 0/TCP, 0/TCP, 0/TCP
State: Running
Started: Wed, 07 Oct 2020 07:30:28 -0700
Ready: True
Restart Count: 0
Liveness: tcp-socket :ldap delay=900s timeout=15s period=30s #success=1 #failure=1
Readiness: exec [/u01/oracle/container-scripts/checkOUDInstance.sh] delay=180s timeout=30s period=60s #success=1 #failure=10
Environment:
instanceType: Directory
sleepBeforeConfig: 3
OUD_INSTANCE_NAME: oud-ds-rs-0
hostname: oud-ds-rs-0
baseDN: dc=example,dc=com
rootUserDN: <set to the key 'rootUserDN' in secret 'oud-ds-rs-creds'> Optional: false
rootUserPassword: <set to the key 'rootUserPassword' in secret 'oud-ds-rs-creds'> Optional: false
adminConnectorPort: 1444
httpAdminConnectorPort: 1888
ldapPort: 1389
ldapsPort: 1636
httpPort: 1080
httpsPort: 1081
replicationPort: 1898
sampleData: 10
Mounts:
/u01/oracle/user_projects from oud-ds-rs-pv (rw)
/var/run/secrets/kubernetes.io/serviceaccount from oud-ds-rs-token-c4tg4 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
oud-ds-rs-pv:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: oud-ds-rs-pvc
ReadOnly: false
oud-ds-rs-token-c4tg4:
Type: Secret (a volume populated by a Secret)
SecretName: oud-ds-rs-token-c4tg4
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>