Document URL: 
https://docs.openshift.com/container-platform/4.6/operators/operator_sdk/osdk-getting-started.html#building-memcached-operator-using-osdk_osdk-getting-started


Section Number and Name: 

Building a Go-based Operator using the Operator SDK

Describe the issue: 
For 4.6, the operator-sdk version is v.0.19.x, But, it doesn't support the Golang type.
[root@preserve-olm-env example-inc]# operator-sdk version
operator-sdk version: "v0.19.4-5-gef0bc88", commit: "ef0bc885e40e6c86c0c079bea612b4eb908f6ec5", kubernetes version: "v1.18.2", go version: "go1.14 linux/amd64"

[root@preserve-olm-env example-inc]# operator-sdk new memcached-operator
Error: required flag(s) "type" not set
...
...
      --type string                 Type of operator to initialize (choices: "ansible" or "helm")
FATA[0000] required flag(s) "type" not set 

Suggestions for improvement: 
We can use the Helm or the Ansible type instead, or still use the Golang type by using the "operator-sdk init", but the following steps are need to be updates bigly. You can refer to the steps for Golang type: https://v0-19-x.sdk.operatorframework.io/docs/golang/quickstart/

Additional information: