Add documentation snippets for PG LA (#530)

Author: lgarber-akamai

instances.go

@@ -43,26 +43,28 @@ const (
 
 // Instance represents a linode object
 type Instance struct {
-	ID              int                     `json:"id"`
-	Created         *time.Time              `json:"-"`
-	Updated         *time.Time              `json:"-"`
-	Region          string                  `json:"region"`
-	Alerts          *InstanceAlert          `json:"alerts"`
-	Backups         *InstanceBackup         `json:"backups"`
-	Image           string                  `json:"image"`
-	Group           string                  `json:"group"`
-	IPv4            []*net.IP               `json:"ipv4"`
-	IPv6            string                  `json:"ipv6"`
-	Label           string                  `json:"label"`
-	Type            string                  `json:"type"`
-	Status          InstanceStatus          `json:"status"`
-	HasUserData     bool                    `json:"has_user_data"`
-	Hypervisor      string                  `json:"hypervisor"`
-	HostUUID        string                  `json:"host_uuid"`
-	Specs           *InstanceSpec           `json:"specs"`
-	WatchdogEnabled bool                    `json:"watchdog_enabled"`
-	Tags            []string                `json:"tags"`
-	PlacementGroup  *InstancePlacementGroup `json:"placement_group"`
+	ID              int             `json:"id"`
+	Created         *time.Time      `json:"-"`
+	Updated         *time.Time      `json:"-"`
+	Region          string          `json:"region"`
+	Alerts          *InstanceAlert  `json:"alerts"`
+	Backups         *InstanceBackup `json:"backups"`
+	Image           string          `json:"image"`
+	Group           string          `json:"group"`
+	IPv4            []*net.IP       `json:"ipv4"`
+	IPv6            string          `json:"ipv6"`
+	Label           string          `json:"label"`
+	Type            string          `json:"type"`
+	Status          InstanceStatus  `json:"status"`
+	HasUserData     bool            `json:"has_user_data"`
+	Hypervisor      string          `json:"hypervisor"`
+	HostUUID        string          `json:"host_uuid"`
+	Specs           *InstanceSpec   `json:"specs"`
+	WatchdogEnabled bool            `json:"watchdog_enabled"`
+	Tags            []string        `json:"tags"`
+
+	// NOTE: Placement Groups may not currently be available to all users.
+	PlacementGroup *InstancePlacementGroup `json:"placement_group"`
 }
 
 // InstanceSpec represents a linode spec
@@ -139,7 +141,9 @@ type InstanceCreateOptions struct {
 	Tags            []string                               `json:"tags,omitempty"`
 	Metadata        *InstanceMetadataOptions               `json:"metadata,omitempty"`
 	FirewallID      int                                    `json:"firewall_id,omitempty"`
-	PlacementGroup  *InstanceCreatePlacementGroupOptions   `json:"placement_group,omitempty"`
+
+	// NOTE: Placement Groups may not currently be available to all users.
+	PlacementGroup *InstanceCreatePlacementGroupOptions `json:"placement_group,omitempty"`
 
 	// Creation fields that need to be set explicitly false, "", or 0 use pointers
 	SwapSize *int  `json:"swap_size,omitempty"`

placement_groups.go

@@ -18,6 +18,7 @@ type PlacementGroupMember struct {
 }
 
 // PlacementGroup represents a Linode placement group.
+// NOTE: Placement Groups may not currently be available to all users.
 type PlacementGroup struct {
 	ID           int                        `json:"id"`
 	Label        string                     `json:"label"`
@@ -58,6 +59,7 @@ type PlacementGroupUnAssignOptions struct {
 
 // ListPlacementGroups lists placement groups under the current account
 // matching the given list options.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) ListPlacementGroups(
 	ctx context.Context,
 	options *ListOptions,
@@ -71,6 +73,7 @@ func (c *Client) ListPlacementGroups(
 }
 
 // GetPlacementGroup gets a placement group with the specified ID.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) GetPlacementGroup(
 	ctx context.Context,
 	id int,
@@ -83,6 +86,7 @@ func (c *Client) GetPlacementGroup(
 }
 
 // CreatePlacementGroup creates a placement group with the specified options.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) CreatePlacementGroup(
 	ctx context.Context,
 	options PlacementGroupCreateOptions,
@@ -96,6 +100,7 @@ func (c *Client) CreatePlacementGroup(
 }
 
 // UpdatePlacementGroup updates a placement group with the specified ID using the provided options.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) UpdatePlacementGroup(
 	ctx context.Context,
 	id int,
@@ -111,6 +116,7 @@ func (c *Client) UpdatePlacementGroup(
 
 // AssignPlacementGroupLinodes assigns the specified Linodes to the given
 // placement group.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) AssignPlacementGroupLinodes(
 	ctx context.Context,
 	id int,
@@ -126,6 +132,7 @@ func (c *Client) AssignPlacementGroupLinodes(
 
 // UnassignPlacementGroupLinodes un-assigns the specified Linodes from the given
 // placement group.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) UnassignPlacementGroupLinodes(
 	ctx context.Context,
 	id int,
@@ -140,6 +147,7 @@ func (c *Client) UnassignPlacementGroupLinodes(
 }
 
 // DeletePlacementGroup deletes a placement group with the specified ID.
+// NOTE: Placement Groups may not currently be available to all users.
 func (c *Client) DeletePlacementGroup(
 	ctx context.Context,
 	id int,