added replica_count and replicas_mode functionality

[rs1986x]

I added the options to choose the read replicas types and number according to gcp documentation and terrraform
https://cloud.google.com/memorystore/docs/redis/reference/rest/v1/projects.locations.instances#readreplicasmode
https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/redis_instance

[rs1986x]

there's a check failing but i am not able to understand why... can anybody help?

[bharathkkb]

Thanks for the PR @rs1986x
The test is failing with

    apply.go:34: 
        	Error Trace:	apply.go:34
        	            				terraform.go:312
        	            				terraform.go:322
        	            				terraform.go:346
        	            				stages.go:31
        	            				terraform.go:346
        	Error:      	Received unexpected error:
        	            	FatalError{Underlying: error while running command: exit status 1; ╷
        	            	│ Error: Error creating Instance: googleapi: Error 400: Setting replica count requires read-replicas-mode to be "READ_REPLICAS_ENABLED"
        	            	│ com.google.apps.framework.request.StatusException: <eye3 title='INVALID_ARGUMENT'/> generic::INVALID_ARGUMENT: Setting replica count requires read-replicas-mode to be "READ_REPLICAS_ENABLED"
        	            	│ Details:
        	            	│ [
        	            	│   {
        	            	│     "@type": "type.googleapis.com/google.rpc.BadRequest",
        	            	│     "fieldViolations": [
        	            	│       {
        	            	│         "description": "Invalid value: 1",
        	            	│         "field": "instance.replica_count"
        	            	│       }
        	            	│     ]
        	            	│   }
        	            	│ ]
        	            	│ 
        	            	│   with module.memstore.google_redis_instance.default,
        	            	│   on ../../main.tf line 17, in resource "google_redis_instance" "default":
        	            	│   17: resource "google_redis_instance" "default" {
        	            	│ 
        	            	╵}
        	Test:       	TestRedis
        	```

[comment-bot-dev]

@rs1986x
Thanks for the PR! 🚀
✅ Lint checks have passed.

[thoreinstein]

Any chance of getting this merged? I would like to utilize this.

[bharathkkb]

Sorry for the delay @rs1986x