Adds region selection to baremetal provider (#106)

Author: codycushing

docs/Writing Terraform configurations for OBMCS.md

@@ -41,6 +41,15 @@ provider "baremetal" {
   private_key_path = "${var.private_key_path}"
 }
 ```
+
+To specify a different region, include the region parameter in your provider definition. Not specifying a value will use the default `us-phoenix-1` region. 
+```
+provider "baremetal" {
+  ...
+  region = "us-ashburn-1"
+}
+```
+
 ## CamelCase
 The OBMCS API uses CamelCase in multiple places. Terraform doesn't support CamelCase in configuration files so we've replaced it with underscores. For example -
 

docs/resources/core/instance.md

@@ -48,3 +48,6 @@ The following attributes are exported:
 * `region` - The region that contains the Availability Domain the instance is running in.
 * `shape` - The shape of the instance. The shape determines the number of CPUs and the amount of memory allocated to the instance.
 * `time_created` - The date and time the instance was created.
+
+* `public_ip` - The public ip of instance vnic (if enabled).
+* `private_ip` - The private ip of instance vnic (if enabled).

provider.go

@@ -24,6 +24,7 @@ func init() {
 		"private_key_path": "(Optional) The path to the user's PEM formatted private key.\n" +
 			"A private_key or a private_key_path must be provided.",
 		"private_key_password": "(Optional) The password used to secure the private key.",
+		"region":               "(Optional) The region for API connections.",
 	}
 }
 
@@ -80,6 +81,13 @@ func schemaMap() map[string]*schema.Schema {
 			Description: descriptions["private_key_password"],
 			DefaultFunc: schema.EnvDefaultFunc("OBMCS_PRIVATE_KEY_PASSWORD", nil),
 		},
+		"region": {
+			Type:        schema.TypeString,
+			Optional:    true,
+			Default:     "us-phoenix-1",
+			Description: descriptions["region"],
+			DefaultFunc: schema.EnvDefaultFunc("OBMCS_REGION", nil),
+		},
 	}
 }
 
@@ -183,6 +191,7 @@ func providerConfig(d *schema.ResourceData) (client interface{}, err error) {
 	privateKeyBuffer, hasKey := d.Get("private_key").(string)
 	privateKeyPath, hasKeyPath := d.Get("private_key_path").(string)
 	privateKeyPassword, hasKeyPass := d.Get("private_key_password").(string)
+	region, hasRegion := d.Get("region").(string)
 
 	clientOpts := []baremetal.NewClientOptionsFunc{
 		func(o *baremetal.NewClientOptions) {
@@ -206,6 +215,10 @@ func providerConfig(d *schema.ResourceData) (client interface{}, err error) {
 		clientOpts = append(clientOpts, baremetal.PrivateKeyPassword(privateKeyPassword))
 	}
 
+	if hasRegion && region != "" {
+		clientOpts = append(clientOpts, baremetal.Region(region))
+	}
+
 	client, err = baremetal.NewClient(userOCID, tenancyOCID, fingerprint, clientOpts...)
 	return
 }