Check if all containers are running, ready and healthy
Knative Serving Components
$ kubectl get pods -n knative-serving
NAME READY STATUS RESTARTS AGE
activator-6b9dc4c9db-cl56b 1/1 Running 0 2m
autoscaler-77f9b75856-f88qw 1/1 Running 0 2m
controller-7dcb56fdb6-dbzrp 1/1 Running 0 2m
domain-mapping-6bb8f95654-c575d 1/1 Running 0 2m
domainmapping-webhook-c77dcfcfb-hg2wv 1/1 Running 0 2m
webhook-78dc6ddddb-6868n 1/1 Running 0 2mCode language: JavaScript (javascript)Knative Serving Networking Layer
$ kubectl get pods -n knative-serving
NAME READY STATUS RESTARTS AGE
net-istio-controller-ccc455b58-f98ld 1/1 Running 0 19s
net-istio-webhook-7558dbfc64-5jmt6 1/1 Running 0 19sCode language: JavaScript (javascript)$ kubectl get pods -n istio-system
NAME READY STATUS RESTARTS AGE
istio-ingressgateway-c7b9f6477-bgr6q 1/1 Running 0 44s
istiod-79d65bf5f4-5zvtj 1/1 Running 0 29sCode language: JavaScript (javascript)$ kubectl get pods -n knative-serving
NAME READY STATUS RESTARTS AGE
net-kourier-controller-5fcbb6d996-fprpd 1/1 Running 0 103s
$ kubectl get pods -n kourier-system
NAME READY STATUS RESTARTS AGE
3scale-kourier-gateway-86b9f6dc44-xpn6h 1/1 Running 0 2m22s
$ kubectl get pods -n contour-external
NAME READY STATUS RESTARTS AGE
contour-7b995cdb68-jg5s8 1/1 Running 0 41s
contour-certgen-v1.24.2-zmr9r 0/1 Completed 0 41s
envoy-xkzck 2/2 Running 0 41s
$ kubectl get pods -n contour-external
NAME READY STATUS RESTARTS AGE
contour-7b995cdb68-jg5s8 1/1 Running 0 41s
contour-certgen-v1.24.2-zmr9r 0/1 Completed 0 41s
envoy-xkzck 2/2 Running 0 41s
$ kubectl get pods -n contour-internal
NAME READY STATUS RESTARTS AGE
contour-57fcf576fd-wb57c 1/1 Running 0 55s
contour-certgen-v1.24.2-gqgrx 0/1 Completed 0 55s
envoy-rht69 2/2 Running 0 55sCode language: JavaScript (javascript)Knative Eventing
$ kubectl get pods -n knative-eventing
NAME READY STATUS RESTARTS AGE
eventing-controller-bb8b689c4-lk6pq 1/1 Running 0 41s
eventing-webhook-577bb88ccd-hcz5p 1/1 Running 0 41sCode language: JavaScript (javascript)Check if there are any errors logged in the Knative components
$ kubectl logs -n knative-serving <pod-name>
$ kubectl logs -n knative-eventing <pod-name>
$ kubectl logs -n <ingress-namespaces> <pod-namespaces> # see above for the relevant namespacesCode language: HTML, XML (xml)For example
$ kubectl logs -n knative-serving activator-6b9dc4c9db-cl56b
2023/05/01 11:52:51 Registering 3 clients
2023/05/01 11:52:51 Registering 3 informer factories
2023/05/01 11:52:51 Registering 4 informersCheck the status of the Knative Resources
$ kubectl describe -n <namespace> kservice
$ kubectl describe -n <namespace> config
$ kubectl describe -n <namespace> revision
$ kubectl describe -n <namespace> sks # Serverless Service
$ kubectl describe -n <namespace> kingress # Knative Ingress
$ kubectl describe -n <namespace> rt # Knative Route
$ kubectl describe -n <namespace> dm # Domain-MappingCode language: HTML, XML (xml)Check the status at the end. For example
Knative Serving
$ kubectl describe -n default kservice
... omitted ...
Status:
Address:
URL: http://hello.default.svc.cluster.local
Conditions:
Last Transition Time: 2023-05-01T12:08:18Z
Status: True
Type: ConfigurationsReady
Last Transition Time: 2023-05-01T12:08:18Z
Status: True
Type: Ready
Last Transition Time: 2023-05-01T12:08:18Z
Status: True
Type: RoutesReady
Latest Created Revision Name: hello-00001
Latest Ready Revision Name: hello-00001
Observed Generation: 1
Traffic:
Latest Revision: true
Percent: 100
Revision Name: hello-00001
URL: http://hello.default.10.89.0.200.sslip.io
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Created 45s service-controller Created Configuration "hello"
Normal Created 45s service-controller Created Route "hello"Code language: PHP (php)Knative Eventing
$ kubectl describe -n <namespace> brokers
$ kubectl describe -n <namespace> eventtypes
$ kubectl describe -n <namespace> triggers
$ kubectl describe -n <namespace> channels
$ kubectl describe -n <namespace> subscriptions
$ kubectl describe -n <namespace> apiserversources
$ kubectl describe -n <namespace> containersources
$ kubectl describe -n <namespace> pingsources
$ kubectl describe -n <namespace> sinkbindingsCode language: HTML, XML (xml)Check the status at the end. For example
$ kubectl describe -n default brokers
... omitted ...
Status:
Annotations:
bootstrap.servers: my-cluster-kafka-bootstrap.kafka:9092
default.topic.partitions: 10
default.topic.replication.factor: 3Code language: JavaScript (javascript)KServe Debugging Guide
- https://kserve.github.io/website/developer/debug/
Debugging application issues
- https://knative.dev/docs/serving/troubleshooting/debugging-application-issues/
Check Istio-Ingressgateway Pod Status:
Knative Serving Troubleshooting: Autoscaler Component
Reference
- https://knative.dev/docs/install/troubleshooting/
- https://knative.dev/docs/serving/troubleshooting/debugging-application-issues/
- https://knative.dev/docs/eventing/troubleshooting/
- https://knative.dev/docs/serving/troubleshooting/debugging-application-issues/
- https://github.com/dewitt/knative-docs/blob/master/serving/debugging-application-issues.md
- https://github.com/dewitt/knative-docs/blob/master/serving/debugging-performance-issues.md
- https://github.com/dewitt/knative-docs/blob/master/serving/accessing-logs.md
- https://github.com/dewitt/knative-docs/blob/master/serving/accessing-metrics.md
- https://github.com/dewitt/knative-docs/blob/master/serving/accessing-traces.md
- https://github.com/dewitt/knative-docs/blob/master/serving/debugging-application-issues.md
- https://github.com/dewitt/knative-docs/blob/master/serving/debugging-performance-issues.md
- https://github.com/dewitt/knative-docs/blob/master/serving/gke-assigning-static-ip-address.md
- https://github.com/dewitt/knative-docs/blob/master/serving/installing-logging-metrics-traces.md
- https://github.com/dewitt/knative-docs/blob/master/serving/outbound-network-access.md
- https://github.com/dewitt/knative-docs/blob/master/serving/setting-up-a-logging-plugin.md
- https://github.com/dewitt/knative-docs/blob/master/serving/using-a-custom-domain.md
- https://github.com/dewitt/knative-docs/blob/master/serving/using-an-ssl-cert.md
- https://github.com/dewitt/knative-docs/blob/master/serving/using-cert-manager-on-gcp.md
- https://github.com/dewitt/knative-docs/blob/master/serving/using-external-dns.md
- https://github.com/knative/serving/issues
- https://github.com/knative/eventing/issues
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