transport: authentication handshake failed: read tcp 127.0.0.1:59307->127.0.0.1:59306: read: connection reset by peer

[dirien]

Hi,

I installed kim builder on an k3s node

➜  bin git:(main) ./kim builder install --selector k3s.io/build=my-builder-node --force
INFO[0000] Applying node-role `builder` to `stackit-containerd-ubuntu` 
INFO[0000] Asserting namespace `kube-image`             
INFO[0000] Asserting TLS secrets                        
INFO[0001] Asserting service/endpoints                  
INFO[0001] Installing builder daemon                    
INFO[0001] Waiting on builder daemon availability...    
INFO[0008] Waiting on builder daemon availability...    
INFO[0013] Waiting on builder daemon availability...    
INFO[0019] Waiting on builder daemon availability...    
```
The pod is running fine:

```
➜  bin git:(main) k get po -n kube-image
NAME            READY   STATUS    RESTARTS   AGE
builder-gl7nv   2/2     Running   0          6m2s
```
But if i try to build an image i get following message:

```
➜  bin git:(main) ./kim build --tag dirien/busybox .                                   
[+] Building 0.0s (0/0)                                                                                                                                                
Error: failed to get status: rpc error: code = Unavailable desc = connection error: desc = "transport: authentication handshake failed: read tcp 127.0.0.1:59307->127.0.0.1:59306: read: connection reset by peer"
Usage:
  kim build [OPTIONS] PATH

Aliases:
  build, image build

Any hints?

[dweomer]

The connection reset speaks to a crash of the backend service. Can you share the logs for the buildkit and agent containers in the pod:

• kubectl -n kube-image logs ds/builder -c buildkit
• kubectl -n kube-image logs ds/builder -c agent

Additionally which architecture are you running on bloth client and server?

[dirien]

➜  bin git:(main) ./kim build --tag dirien/busybox .                                     
[+] Building 0.0s (0/0)                                                                                                                                                
Error: failed to dial gRPC: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 10.1.10.171:1234: i/o timeout"
Usage:
  kim build [OPTIONS] PATH

Aliases:
  build, image build

Logs:

➜  ~ k get nodes
NAME                        STATUS   ROLES                          AGE   VERSION
stackit-containerd-ubuntu   Ready    builder,control-plane,master   19m   v1.20.6+k3s1
 ~ kubectl -n kube-image logs ds/builder -c buildkit
time="2021-05-19T06:59:57Z" level=warning msg="using host network as the default"
time="2021-05-19T06:59:57Z" level=info msg="found worker \"sc8350l4a127adn2qw3m1edto\", labels=map[org.mobyproject.buildkit.worker.executor:containerd org.mobyproject.buildkit.worker.hostname:stackit-containerd-ubuntu org.mobyproject.buildkit.worker.snapshotter:overlayfs], platforms=[linux/amd64 linux/386]"
time="2021-05-19T06:59:57Z" level=info msg="found 1 workers, default=\"sc8350l4a127adn2qw3m1edto\""
time="2021-05-19T06:59:57Z" level=warning msg="currently, only the default worker can be used."
time="2021-05-19T06:59:57Z" level=warning msg="TLS is disabled for unix:///run/buildkit/buildkitd.sock"
time="2021-05-19T06:59:57Z" level=info msg="running server on /run/buildkit/buildkitd.sock"
time="2021-05-19T06:59:57Z" level=info msg="running server on [::]:1234"
 ~ kubectl -n kube-image logs ds/builder -c agent
➜  ~

[dweomer]

@dirien is this still a problem?