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kubernetes-up-and-running / kuard

Demo app for Kubernetes Up and Running book
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Can't run kuard on raspberry cluster #34

Closed fals closed 1 year ago

fals commented 4 years ago

When I try to run the examples from Chapter 6 and 7 in my raspberry cluster, the pods and services do not start.

>kubectl run alpaca-prod --image=gcr.io/kuar-demo/kuard-amd64:blue --replicas=3 --port=8080 --labels="ver=1,app=alpaca,env=prod"
>kubectl logs alpaca-prod
standard_init_linux.go:211: exec user process caused "exec format error"
>kubectl describe pods alpaca-prod
Events:
  Type     Reason     Age                From               Message
  ----     ------     ----               ----               -------
  Normal   Scheduled  <unknown>          default-scheduler  Successfully assigned default/alpaca-prod to fc3
  Normal   Pulled     29s (x4 over 74s)  kubelet, fc3       Container image "gcr.io/kuar-demo/kuard-amd64:blue" already present on machine
  Normal   Created    28s (x4 over 74s)  kubelet, fc3       Created container alpaca-prod
  Normal   Started    28s (x4 over 73s)  kubelet, fc3       Started container alpaca-prod
  Warning  BackOff    3s (x8 over 71s)   kubelet, fc3       Back-off restarting failed container

Looks like an internal error in the container.

lynchmaniac commented 3 years ago

Maybe too late, but you must use gcr.io/kuar-demo/kuard-arm:1 image instead of gcr.io/kuar-demo/kuard-amd64:blue. Rpi have an integrated ARM-compatible central processing unit (CPU), so every image use on this cluster rpi, must be ARM type and not AMD type. See #5 for more details

lachie83 commented 1 year ago

@lynchmaniac provided the appropriate solution https://github.com/kubernetes-up-and-running/kuard/issues/34#issuecomment-886378559