Added simple example with one instance

Author: kawsark

examples/prod-and-dev/main.tf

@@ -7,15 +7,15 @@ variable "gcp_sql_root_user_pw" {}
 variable "authorized_network" {}
 
 module "prod-gcp-cloudsql" {
-  source = "../../"
+  source = "github.com/kawsark-git-org/terraform-gcp-cloudsql"
   region  = "${var.region}"
   database_name = "prod-gcp-cloudsql"
   gcp_sql_root_user_pw = "${var.gcp_sql_root_user_pw}"
   authorized_network = "${var.authorized_network}"
 }
 
 module "dev-gcp-cloudsql" {
-  source = "../../"
+  source = "github.com/kawsark-git-org/terraform-gcp-cloudsql"
   region  = "${var.region}"
   database_name = "dev-gcp-cloudsql"
   gcp_sql_root_user_pw = "${var.gcp_sql_root_user_pw}"

examples/simple/README.md

@@ -0,0 +1,26 @@
+# terraform-gcp-cloudsql
+Provisions a GCP CloudSQL POSTGRES instances in GCP for demo purposes using `terraform-gcp-cloudsql` module
+
+Please the following environment variables appropriately:
+```
+export GOOGLE_CLOUD_KEYFILE_JSON=<path/to/keyfile>
+export GOOGLE_PROJECT=<project>
+export TF_VAR_gcp_sql_root_user_pw=<pw>
+export TF_VAR_authorized_network="$(curl whatismyip.akamai.com)/32"
+```
+Run the terraform commands below to create the sql instance:  
+```
+terraform get --update=true
+terraform init
+terraform plan
+terraform apply
+```
+View module outputs:
+```
+terraform output -json -module=example-gcp-cloudsql | jq .
+```
+Connect using psql CLI:
+```
+terraform output -json -module=example-gcp-cloudsql | jq -r .ip.value > /tmp/example-sql-ip
+psql "sslmode=disable dbname=postgres user=root hostaddr=$(cat /tmp/example-sql-ip)"
+```

examples/simple/main.tf

@@ -0,0 +1,16 @@
+variable "region" {
+  default = "us-central1"
+}
+
+variable "gcp_sql_root_user_pw" {}
+
+variable "authorized_network" {}
+
+module "example-gcp-cloudsql" {
+  source = "github.com/kawsark-git-org/terraform-gcp-cloudsql"
+  region  = "${var.region}"
+  database_name = "example-gcp-cloudsql"
+  gcp_sql_root_user_pw = "${var.gcp_sql_root_user_pw}"
+  authorized_network = "${var.authorized_network}"
+}
+