Cannot run WasmEdge Rust HTTP service

[rgl]

I'm trying to run my independent WasmEdge Rust HTTP example service (ghcr.io/rgl/wasmedge-http-rust-example:0.0.4) under k3s, but it just enters the CrashLoopBackOff state without any obvious clue.

I'm using:

• k3s v1.28.5+k3s1
• k3s containerd v1.7.11-k3s2
• containerd-shim-wasmedge-v1 0.3.0
• my k3s playground wasmedge branch https://github.com/rgl/k3s-vagrant/tree/wasmedge (please look at the latest commit to known how containerd-shim-wasmedge-v1 installed and configured)

Please note that it works fine when executed directly by the wasmedge binary as wasmedge target/wasm32-wasi/release/wasmedge-http-rust-example.wasm.

Can you please help me understand why this is happening?

Here's the kubectl describe pods output:

$ kubectl describe pods
Name:                example-wasmedge-6864476bff-2cfb7
Namespace:           default
Priority:            0
Runtime Class Name:  wasmedge
Service Account:     default
Node:                a1/10.11.0.41
Start Time:          Sat, 10 Feb 2024 13:24:52 +0000
Labels:              app=example-wasmedge
                     pod-template-hash=6864476bff
Annotations:         <none>
Status:              Running
IP:                  10.12.1.30
IPs:
  IP:           10.12.1.30
Controlled By:  ReplicaSet/example-wasmedge-6864476bff
Containers:
  example:
    Container ID:    containerd://97c1316ac9cd57f3df72fadda254644d427d7130567acbd9a86e08d126b05562
    Image:           ghcr.io/rgl/wasmedge-http-rust-example:0.0.4
    Image ID:        ghcr.io/rgl/wasmedge-http-rust-example@sha256:13314434e6bf3b7fc322589b2374742e4dec543490d7f6e8fc0d3f686167f62f
    Port:            8080/TCP
    Host Port:       0/TCP
    SeccompProfile:  RuntimeDefault
    State:           Terminated
      Reason:        Error
      Exit Code:     9
      Started:       Sat, 10 Feb 2024 13:24:55 +0000
      Finished:      Sat, 10 Feb 2024 13:24:57 +0000
    Last State:      Terminated
      Reason:        Error
      Exit Code:     9
      Started:       Sat, 10 Feb 2024 13:24:53 +0000
      Finished:      Sat, 10 Feb 2024 13:24:54 +0000
    Ready:           False
    Restart Count:   1
    Limits:
      cpu:     100m
      memory:  32Mi
    Requests:
      cpu:        100m
      memory:     32Mi
    Environment:  <none>
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-9rmcj (ro)
Conditions:
  Type              Status
  Initialized       True 
  Ready             False 
  ContainersReady   False 
  PodScheduled      True 
Volumes:
  kube-api-access-9rmcj:
    Type:                    Projected (a volume that contains injected data from multiple sources)
    TokenExpirationSeconds:  3607
    ConfigMapName:           kube-root-ca.crt
    ConfigMapOptional:       <nil>
    DownwardAPI:             true
QoS Class:                   Guaranteed
Node-Selectors:              <none>
Tolerations:                 node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
  Type     Reason     Age               From               Message
  ----     ------     ----              ----               -------
  Normal   Scheduled  12s               default-scheduler  Successfully assigned default/example-wasmedge-6864476bff-2cfb7 to a1
  Normal   Pulled     9s (x2 over 11s)  kubelet            Container image "ghcr.io/rgl/wasmedge-http-rust-example:0.0.4" already present on machine
  Normal   Created    9s (x2 over 11s)  kubelet            Created container example
  Normal   Started    9s (x2 over 11s)  kubelet            Started container example
  Warning  BackOff    7s                kubelet            Back-off restarting failed container example in pod example-wasmedge-6864476bff-2cfb7_default(ed1feb8e-9cf7-4883-ad39-ce2e45e62512)

[Mossaka]

The best way to debug this at the moment is to see the logs in containerd.

[Mossaka]

Close this issue as guidance on debuggin is provided.