helm commands error with "socat not found"

[ligc]

I am using the latest helm v2.0.0-alpha.5 in my Ubuntu 16.04 Kubernetes cluster, the installation went well, I downloaded the binary and installed helm using helm init without any problem. But when I tried to run any helm command, it returns with error "socat not found"

root@c910f04x19k07:~/linux-amd64# ./helm version
Client: &version.Version{SemVer:"v2.0.0-alpha.5", GitCommit:"a324146945c01a1e2dd7eaf23caf0e55fabfd3d2", GitTreeState:"clean"}
E1014 02:26:30.145559   16134 portforward.go:329] an error occurred forwarding 40276 -> 44134: error forwarding port 44134 to pod tiller-deploy-2117266891-e4lev_kube-system, uid : unable to do port forwarding: socat not found.
2016/10/14 02:26:30 transport: http2Client.notifyError got notified that the client transport was broken EOF.
Error: rpc error: code = 13 desc = transport is closing
root@c910f04x19k07:~/linux-amd64# ./helm list
E1014 02:26:32.885226   16143 portforward.go:329] an error occurred forwarding 37008 -> 44134: error forwarding port 44134 to pod tiller-deploy-2117266891-e4lev_kube-system, uid : unable to do port forwarding: socat not found.
2016/10/14 02:26:32 transport: http2Client.notifyError got notified that the client transport was broken EOF.
Error: transport is closing
root@c910f04x19k07:~/linux-amd64# 

The socat is installed on all the Kubernetes nodes:

root@c910f04x19k07:~/linux-amd64# kubectl get nodes
NAME                                STATUS    AGE
c910f04x19k08.pok.stglabs.ibm.com   Ready     23h
c910f04x19k09.pok.stglabs.ibm.com   Ready     23h
root@c910f04x19k07:~/linux-amd64# which socat
/usr/bin/socat
root@c910f04x19k07:~/linux-amd64# 

root@c910f04x19k08:~# which socat
/usr/bin/socat
root@c910f04x19k08:~# 

root@c910f04x19k09:~# which socat
/usr/bin/socat
root@c910f04x19k09:~# 

#966 and #1183 do not seem to help.

Any suggestion on what might be going wrong? Thanks.

[technosophos]

How'd you install Kubernetes? And which version of Kubernetes? I'll see if I can reproduce.

[ligc]

@technosophos Thanks for the comments. I think I figured it out, I am running Kubernetes on Mesos, the kubernetes and mesos components are running in docker containers, the socat was not installed on the mesos-agent docker, after I installed the socat in the mesos-agent container, the helm command now works perfectly. I am closing this issue.

root@c910f04x19k07:/linux-amd64# ./helm version
Client: &version.Version{SemVer:"v2.0.0-alpha.5", GitCommit:"a324146945c01a1e2dd7eaf23caf0e55fabfd3d2", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.0.0-alpha.5", GitCommit:"4de5c4aa578ed9ca173aff472f00d2167ec59a88", GitTreeState:"dirty"}
root@c910f04x19k07:/linux-amd64#

[sstarcher]

I'm hitting a similar issue. Kubernetes running on CoreOS not in a docker container.

Fetched stable/jenkins to jenkins-0.1.1.tgz
E1024 16:28:57.637673   40086 portforward.go:329] an error occurred forwarding 56784 -> 44134: error forwarding port 44134 to pod tiller-deploy-2434200834-v3ph3_kube-system, uid : unable to do port forwarding: socat not found.
2016/10/24 16:28:57 transport: http2Client.notifyError got notified that the client transport was broken EOF.
Error: transport is closing

[sstarcher]

As pointed out in #966 my issue is I'm not running the kublet in a docker container

[zmoon111]

in my case, i did not yum install -y socat properly in my kubelet nodes. after installed it, error fixed.

[hobbytp]

In my case, I try to use the helm in my minikube, and the minikube I installed by using --vm-driver=none ( I run minikube start - -vm-driver=none in my centos7 VM). After I install helm, I failed to execute command " helm install xxx --name=xxx". The error msg is as below:

E0314 11:11:34.846462    9787 portforward.go:331] an error occurred forwarding 44073 -> 44134: error forwarding port 44134 to pod 97d6d90eb835f6e4211ef3fc6e0e168987bf0c961912cf8774a5c8692d905121, uid : unable to do port forwarding: socat not found.

The issue gone after I install socat

yum install -y socat

[dullduck]

yes!run 'yum install -y socat' on every node can resolve this problem.

[akshayvadher]

In my case, I try to use the helm in my minikube, and the minikube I installed by using --vm-driver=none ( I run minikube start - -vm-driver=none in my centos7 VM). After I install helm, I failed to execute command " helm install xxx --name=xxx". The error msg is as below:

E0314 11:11:34.846462    9787 portforward.go:331] an error occurred forwarding 44073 -> 44134: error forwarding port 44134 to pod 97d6d90eb835f6e4211ef3fc6e0e168987bf0c961912cf8774a5c8692d905121, uid : unable to do port forwarding: socat not found.

The issue gone after I install socat

yum install -y socat

For ubuntu & debian
sudo apt-get install socat

[AnikHasibul]

For ubuntu
sudo apt-get install socat

great! worked for me 😎

[derik93]

in my case, i did not yum install -y socat properly in my kubelet nodes. after installed it, error fixed.

I had used your method and sloved this problem. thanks