Daemon cannot start under shared mode

[chenzhuofu]

I followed the building instructions and installed the runwasi tools locally. The make check and mae test executed successfully.

vagrant@vagrant:~/runwasi$ make check
cargo fmt --all -- --check
cargo clippy --all --all-targets -- -D warnings
    Finished dev [unoptimized + debuginfo] target(s) in 0.35s

Then I tried to use shared mode executing containerd-wasmedged to start daemon, but it errored as,

vagrant@vagrant:~/runwasi$ containerd-wasmedged
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Others("ENOENT: No such file or directory")', crates/containerd-shim-wasmedge/src/bin/containerd-wasmedged/main.rs:19:10
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Is it my mistake in operation or are there indeed some bugs? Thanks for attention.

[Mossaka]

Could you please check the containerd log and paste them here?

[chenzhuofu]

Could you please check the containerd log and paste them here?

Hi Mossaka,

I hadn't used containerd to invoke containerd-wasmedged. The later is an executable in /usr/local/bin/.

[Mossaka]

Ah okay I misread it. I can verify that I could reproduce this error locally. Honestly I am not familiar with how the shared mode is implemented / used.

It looks like when you executed the binary, it tried to bind a socket at unix:///run/io.containerd.wasmwasi.v1/manager.sock which was not found.

@cpuguy83 do you know this issue?

[Mossaka]

Try mkdir /run/io.containerd.wasmwasi.v1/

[chenzhuofu]

Try mkdir /run/io.containerd.wasmwasi.v1/

That worked! I sucessfully started the containerd-wasmedged after mkdir.

But now another problem is that when I started the daemon and executeed sudo ctr run --rm --runtime=io.containerd.wasmedged.v1 ghcr.io/containerd/runwasi/wasi-demo-app:latest testwasm /wasi-demo-app.wasm echo 'hello',

it will timeouted and errored like, ctr: failed to dial "/run/containerd/containerd.sock": context deadline exceeded

Could you please help me solve this?

[Mossaka]

Did you make sure that containerd is running in the background?

[chenzhuofu]

Sorry that I didn't start containerd by systemctl.

Then I started it and could execute sudo ctr run --rm --runtime=io.containerd.wasmedge.v1 ghcr.io/containerd/runwasi/wasi-demo-app:latest testwasm /wasi-demo-app.wasm echo 'hello' in Normal mode and received the expected result ("hello\nexiting").

After that, I executed sudo containerd-wasmedged in one bash and sudo ctr run --rm --runtime=io.containerd.wasmedged.v1 ghcr.io/containerd/runwasi/wasi-demo-app:latest testwasm /wasi-demo-app.wasm echo 'hello' (for Shared mode) in another, but they all stuck.

Does Shared mode work well in your side? I don't know if I mistake something.