LFD259 Paragraph 6 on Page 49

I tried running the code to show the ilike environment variable, but it gives me the error:
error: unable to upgrade connection: container not found ("simpleapp")
This is what I get in terms of the pod state:
kubectl get pods NAME READY STATUS RESTARTS AGE init-tester 1/1 Running 1 (57m ago) 5d21h nginx-79ff9c85db-t5qmq 1/1 Running 9 (57m ago) 24d registry-7d7db4bd8f-fk8lx 1/1 Running 9 (57m ago) 24d try1-7845d5b88-jddt8 1/2 ErrImagePull 0 16m try1-7845d5b88-jvtbg 1/2 ImagePullBackOff 0 16m try1-7845d5b88-ndbzp 1/2 ErrImagePull 0 16m try1-7845d5b88-rh4vv 1/2 ImagePullBackOff 0 16m try1-7845d5b88-rz8zt 1/2 ImagePullBackOff 0 16m try1-7845d5b88-v42hl 1/2 ImagePullBackOff 0 16m
I ran the command on both a pod with ErrImagePull and the one with ImagePullBackOff. Neither one finds simpleapp, which kind of makes if the image was not pulled correctly.
This is what I get when I use kubectl describe for the first pod:
Name: init-tester Namespace: default Priority: 0 Service Account: default Node: ip-172-31-5-160/172.31.5.160 Start Time: Sun, 20 Aug 2023 23:38:57 +0000 Labels: app=inittest Annotations: cni.projectcalico.org/containerID: aaa6f94cf5853f28c04bd15ccf98136adf2d7b82f8a4355072e7defe3c111a5b cni.projectcalico.org/podIP: 192.168.72.34/32 cni.projectcalico.org/podIPs: 192.168.72.34/32 Status: Running IP: 192.168.72.34 IPs: IP: 192.168.72.34 Init Containers: failed: Container ID: containerd://dfef68b8fc23835ddfb79c6181da8ca34b171be9e7d24301fb4322626d96f354 Image: busybox Image ID: docker.io/library/busybox@sha256:3fbc632167424a6d997e74f52b878d7cc478225cffac6bc977eedfe51c7f4e79 Port: <none> Host Port: <none> Command: /bin/true State: Terminated Reason: Completed Exit Code: 0 Started: Sat, 26 Aug 2023 19:55:25 +0000 Finished: Sat, 26 Aug 2023 19:55:25 +0000 Ready: True Restart Count: 1 Environment: <none> Mounts: /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-9rjk6 (ro) Containers: webservice: Container ID: containerd://f42e45bb62d366f75746433b01dbd87041a7c9c75fcad0f3be35d7b03e36d2bc Image: nginx Image ID: docker.io/library/nginx@sha256:104c7c5c54f2685f0f46f3be607ce60da7085da3eaa5ad22d3d9f01594295e9c Port: <none> Host Port: <none> State: Running Started: Sat, 26 Aug 2023 19:55:26 +0000 Last State: Terminated Reason: Unknown Exit Code: 255 Started: Sun, 20 Aug 2023 23:38:59 +0000 Finished: Sat, 26 Aug 2023 19:54:22 +0000 Ready: True Restart Count: 1 Environment: <none> Mounts: /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-9rjk6 (ro) Conditions: Type Status Initialized True Ready True ContainersReady True PodScheduled True Volumes: kube-api-access-9rjk6: Type: Projected (a volume that contains injected data from multiple sources) TokenExpirationSeconds: 3607 ConfigMapName: kube-root-ca.crt ConfigMapOptional: <nil> DownwardAPI: true QoS Class: BestEffort Node-Selectors: <none> Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s node.kubernetes.io/unreachable:NoExecute op=Exists for 300s Events: <none>
Answers
-
Hi @rasputin312,
Can you
describe
one of thetry1-7845d5b88-xxxxx
pods? Since those are the pods we would need to troubleshoot in this case. Recreatetry1
deployment to have the events regenerated. Thendescribe
atry1
pod with theErrImagePull
status and one with theImagePullBackOff
status.Also, what is the output of the following command:
kubectl get pods -A -o wide
The
init-tester
pod seems to be running as expected, so it does not help us in troubleshooting thetry1
deployment.Regards,
-Chris0
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