Unable to create Api | Go Operator

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Vaishali Gupta

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Oct 26, 2021, 10:19:28 AM10/26/21
to Operator Framework
Hello Team ,

getting below error while using below command 
could you please help us what can be done to resolve this issue ?

```
root@k8sopa1:~/hss-operator# operator-sdk create api --group cache --version v1alpha1 --kind Hss --resource --controller
Writing kustomize manifests for you to edit...
Writing scaffold for you to edit...
api/v1alpha1/hss_types.go
controllers/hss_controller.go
Update dependencies:
$ go mod tidy
Running make:
$ make generate
go: creating new go.mod: module tmp
make: *** [Makefile:125: controller-gen] Error 1
Error: failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v3": exit status 2
Usage:
  operator-sdk create api [flags]

Examples:
  # Create a frigates API with Group: ship, Version: v1beta1 and Kind: Frigate
  operator-sdk create api --group ship --version v1beta1 --kind Frigate

  # Edit the API Scheme
  nano api/v1beta1/frigate_types.go

  # Edit the Controller
  nano controllers/frigate/frigate_controller.go

  # Edit the Controller Test
  nano controllers/frigate/frigate_controller_test.go

  # Install CRDs into the Kubernetes cluster using kubectl apply
  make install

  # Regenerate code and run against the Kubernetes cluster configured by ~/.kube/config
  make run


Flags:
      --controller           if set, generate the controller without prompting the user (default true)
      --crd-version string   version of CustomResourceDefinition to scaffold. Options: [v1, v1beta1] (default "v1")
      --force                attempt to create resource even if it already exists
      --group string         resource Group
  -h, --help                 help for api
      --kind string          resource Kind
      --make make generate   if true, run make generate after generating files (default true)
      --namespaced           resource is namespaced (default true)
      --plural string        resource irregular plural form
      --resource             if set, generate the resource without prompting the user (default true)
      --version string       resource Version

Global Flags:
      --plugins strings   plugin keys to be used for this subcommand execution
      --verbose           Enable verbose logging

FATA[0001] failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v3": exit status 2
```

versions available on system

```
root@k8sopa1:~/hss-operator# go version
go version go1.16.9 linux/amd64
root@k8sopa1:~/hss-operator# docker version
Client:
 Version:           20.10.8
 API version:       1.41
 Go version:        go1.16.6
 Git commit:        3967b7d28e
 Built:             Wed Aug  4 21:24:10 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server:
 Engine:
  Version:          20.10.8
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.16.6
  Git commit:       75249d8
  Built:            Wed Aug  4 21:26:30 2021
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v1.4.9
  GitCommit:        e25210fe30a0a703442421b0f60afac609f950a3
 runc:
  Version:          1.0.1
  GitCommit:
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
root@k8sopa1:~/hss-operator# kubectl version
Client Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.2", GitCommit:"8b5a19147530eaac9476b0ab82980b4088bbc1b2", GitTreeState:"clean", BuildDate:"2021-09-16T02:43:21Z", GoVersion:"go1.16.7", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.5+k3s2", GitCommit:"724ef700bab896ff252a75e2be996d5f4ff1b842", GitTreeState:"clean", BuildDate:"2021-10-05T19:59:14Z", GoVersion:"go1.16.8", Compiler:"gc", Platform:"linux/amd64"}
root@k8sopa1:~/hss-operator# git version
git version 2.25.1
root@k8sopa1:~/hss-operator# operator-sdk version
operator-sdk version: "v1.13.1", commit: "1659ab58a073999463e6dcdf18bdc359a315e091", kubernetes version: "1.21", go version: "go1.16.8", GOOS: "linux", GOARCH: "amd64"
root@k8sopa1:~/hss-operator#

```

Thanks & Regards,
Vaishali Gupta

David Lanouette

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Oct 26, 2021, 10:41:12 AM10/26/21
to Vaishali Gupta, Operator Framework
Hi Vaishali

dial tcp: lookup proxy.golang.org: Temporary failure in name resolution

This looks like it might be a temporary network issue while trying to download controller-gen.  

Can you try manually running go get: sigs.k8s.io/controller-tools/cmd/control...@v0.6.1 on your computer?



David Lanouette

Principal Engineer - IT Platform Team

Remote, NC

mobile: 919-610-6656




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Vaishali Gupta

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Oct 26, 2021, 10:49:47 AM10/26/21
to Operator Framework
Same error i am facing with below command 

David Lanouette

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Oct 26, 2021, 11:00:37 AM10/26/21
to Vaishali Gupta, Operator Framework
So, your real issue is trying to download controller-gen.  It seems like you may not be able to reach the go proxy server.

What do you get if you try to run nslookup?



David Lanouette

Principal Engineer - IT Platform Team

Remote, NC

mobile: 919-610-6656



To view this discussion on the web visit https://groups.google.com/d/msgid/operator-framework/6cf265b4-6ccc-459e-a61c-401501abcdadn%40googlegroups.com.

Vaishali Gupta

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Oct 26, 2021, 11:07:58 AM10/26/21
to Operator Framework
Hello David,

Getting below message

root@k8sopa1:/home/vagrant# nslookup proxy.golang.org
Server:         127.0.0.53
Address:        127.0.0.53#53

** server can't find proxy.golang.org: SERVFAIL

Vaishali Gupta

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Oct 26, 2021, 11:30:45 AM10/26/21
to Operator Framework

below is the out put of dig

root@k8sopa1:/home/vagrant# dig proxy.golang.org

; <<>> DiG 9.16.1-Ubuntu <<>> proxy.golang.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 40165
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;proxy.golang.org.              IN      A

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Tue Oct 26 15:29:39 UTC 2021
;; MSG SIZE  rcvd: 45

root@k8sopa1:/home/vagrant# dig +trace proxy.golang.org

; <<>> DiG 9.16.1-Ubuntu <<>> +trace proxy.golang.org
;; global options: +cmd
;; Received 51 bytes from 127.0.0.53#53(127.0.0.53) in 0 ms

root@k8sopa1:/home/vagrant#

David Lanouette

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Oct 26, 2021, 11:53:07 AM10/26/21
to Vaishali Gupta, Operator Framework
The proxy is definitely up, so it seems like it's an issue on your end.  Sorry we can't help further.

One additional thing I noticed:  It looks like you may be running the commands in a VM.  (your home directory is /home/vagrant).  You may want to double check your network configuration on the VM, and try running it on a "real" machine.

Good luck.


David Lanouette

Principal Engineer - IT Platform Team

Remote, NC

mobile: 919-610-6656



To view this discussion on the web visit https://groups.google.com/d/msgid/operator-framework/7bbe9c46-48ff-40f3-bef3-bbaa8d9adc16n%40googlegroups.com.

Vaishali Gupta

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Oct 26, 2021, 11:57:38 AM10/26/21
to Operator Framework
Added the Ip into etc/hosts
but still facing same error with create api
root@k8sopa2:~/hss-operator# ping https://proxy.golang.org/
ping: https://proxy.golang.org/: Name or service not known
root@k8sopa2:~/hss-operator# ping proxy.golang.org
PING proxy.golang.org (142.250.196.177) 56(84) bytes of data.
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=1 ttl=113 time=46.8 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=2 ttl=113 time=45.7 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=3 ttl=113 time=47.8 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=4 ttl=113 time=47.6 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=5 ttl=113 time=45.7 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=6 ttl=113 time=47.7 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=7 ttl=113 time=47.7 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=8 ttl=113 time=45.7 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=9 ttl=113 time=47.4 ms
64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=10 ttl=113 time=47.2 ms
^C64 bytes from proxy.golang.org (142.250.196.177): icmp_seq=11 ttl=113 time=47.3 ms
^C
--- proxy.golang.org ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10424ms
rtt min/avg/max/mdev = 45.668/46.953/47.846/0.818 ms
root@k8sopa2:~/hss-operator# ^C
root@k8sopa2:~/hss-operator# ^C
root@k8sopa2:~/hss-operator# nslookup proxy.golang.org
Server:         127.0.0.53
Address:        127.0.0.53#53

Non-authoritative answer:
Address: 142.250.196.177

root@k8sopa2:~/hss-operator#

David Lanouette

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Oct 26, 2021, 1:21:26 PM10/26/21
to Vaishali Gupta, Operator Framework
Ping does not use TLS, so ping https://proxy.golang.org/ would never work as expected.

Can you open the website https://proxy.golang.org/?

You can test if you can connect to the host over TLS with this command:
openssl s_client -connect proxy.golang.org:443





David Lanouette

Principal Engineer - IT Platform Team

Remote, NC

mobile: 919-610-6656



To view this discussion on the web visit https://groups.google.com/d/msgid/operator-framework/35a9cf43-f42a-4cf5-b8dd-079b6f580dedn%40googlegroups.com.
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