open-consul/api/coordinate.go

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package api
import (
"github.com/hashicorp/serf/coordinate"
)
// CoordinateEntry represents a node and its associated network coordinate.
type CoordinateEntry struct {
Node string
Coord *coordinate.Coordinate
}
// CoordinateDatacenterMap has the coordinates for servers in a given datacenter
// and area. Network coordinates are only compatible within the same area.
type CoordinateDatacenterMap struct {
Datacenter string
AreaID string
Coordinates []CoordinateEntry
}
// Coordinate can be used to query the coordinate endpoints
type Coordinate struct {
c *Client
}
// Coordinate returns a handle to the coordinate endpoints
func (c *Client) Coordinate() *Coordinate {
return &Coordinate{c}
}
// Datacenters is used to return the coordinates of all the servers in the WAN
// pool.
func (c *Coordinate) Datacenters() ([]*CoordinateDatacenterMap, error) {
r := c.c.newRequest("GET", "/v1/coordinate/datacenters")
_, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, err
}
defer resp.Body.Close()
var out []*CoordinateDatacenterMap
if err := decodeBody(resp, &out); err != nil {
return nil, err
}
return out, nil
}
// Nodes is used to return the coordinates of all the nodes in the LAN pool.
func (c *Coordinate) Nodes(q *QueryOptions) ([]*CoordinateEntry, *QueryMeta, error) {
r := c.c.newRequest("GET", "/v1/coordinate/nodes")
r.setQueryOptions(q)
rtt, resp, err := requireOK(c.c.doRequest(r))
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
var out []*CoordinateEntry
if err := decodeBody(resp, &out); err != nil {
return nil, nil, err
}
return out, qm, nil
}