k3s kubectl logs return empty logs

[defims]

ctr run directly got right stdout logs

sudo k3s ctr image import --all-platforms target/wasm32-wasi/debug/img.tar #img.tar is build from cd crates/wasi-demo-app && cargo build && cargo build --features oci-v1-tar && cd ../../
sudo k3s ctr run --rm --runtime=io.containerd.wasmtime.v1 ghcr.io/containerd/runwasi/wasi-demo-app:latest wasi-demo-app #need containerd-shim-wasmtime-v1 avaibled by running make && make install 

but when I run it with kubectl, I got empty pod logs

sudo k3s kubectl apply -f wasm.yml # need configure containerd with configure file like below
sudo k3s kubectl get pods
sudo k3s kubectl logs wasi-demo-xxx

the wasm.yml is:

---
apiVersion: node.k8s.io/v1
kind: RuntimeClass
metadata:
  name: wasmtime
handler: wasmtime
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wasi-demo
  labels:
    app: wasi-demo
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wasi-demo
  template:
    metadata:
      labels:
        app: wasi-demo
    spec:
      runtimeClassName: wasmtime
      containers:
      - name: demo
        image: ghcr.io/containerd/runwasi/wasi-demo-app:latest
        imagePullPolicy: Never

/var/lib/rancher/k3s/agent/etc/containerd/config.toml.tmpl is:

version = 2

[plugins."io.containerd.internal.v1.opt"]
  path = "/var/lib/rancher/k3s/agent/containerd"
[plugins."io.containerd.grpc.v1.cri"]
  stream_server_address = "127.0.0.1"
  stream_server_port = "10010"
  enable_selinux = false
  enable_unprivileged_ports = true
  enable_unprivileged_icmp = true
  sandbox_image = "rancher/mirrored-pause:3.6"

[plugins."io.containerd.grpc.v1.cri".containerd]
  snapshotter = "overlayfs"
  disable_snapshot_annotations = true


[plugins."io.containerd.grpc.v1.cri".cni]
  bin_dir = "/var/lib/rancher/k3s/data/7c994f47fd344e1637da337b92c51433c255b387d207b30b3e0262779457afe4/bin"
  conf_dir = "/var/lib/rancher/k3s/agent/etc/cni/net.d"


[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.wasmedge]
  runtime_type = "io.containerd.wasmedge.v1"

[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.wasmtime]
  runtime_type = "io.containerd.wasmtime.v1"

[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
  runtime_type = "io.containerd.runc.v2"

[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
  SystemdCgroup = true

containerd shims are in /usr/local/bin

[Mossaka]

Hey!

Could you please try cloning the repo to your local, and then run make test/k8s/deploy?

This will build the wasmtime shim binary, create a kind cluster and apply test/k8s/deploy.yaml into k8s.

When you do kubectl logs <pod-name, you will see the following:

[defims]

Hey!

Could you please try cloning the repo to your local, and then run make test/k8s/deploy?

This will build the wasmtime shim binary, create a kind cluster and apply test/k8s/deploy.yaml into k8s.

When you do kubectl logs <pod-name, you will see the following:

kind works, It seems like some missing configure or bug of k3s cause this.

[defims]

Hey!
Could you please try cloning the repo to your local, and then run make test/k8s/deploy?
This will build the wasmtime shim binary, create a kind cluster and apply test/k8s/deploy.yaml into k8s.
When you do kubectl logs <pod-name, you will see the following:

kind works, It seems like some missing configure or bug of k3s cause this.

It's a proxy problem as k3s issue 6119 said.
add NO_PROXY=192.168.0.0/16 to /etc/systemd/system/k3s.service.env and restart k3s. everything works.