func (s *HTTPServer) HealthServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// Set default DC
args := structs.ServiceSpecificRequest{}
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
// Check for a tag
params := req.URL.Query()
if _, ok := params["tag"]; ok {
args.ServiceTag = params.Get("tag")
args.TagFilter = true
}
// Pull out the service name
args.ServiceName = strings.TrimPrefix(req.URL.Path, "/v1/health/service/")
if args.ServiceName == "" {
resp.WriteHeader(400)
resp.Write([]byte("Missing service name"))
return nil, nil
}
// Make the RPC request
var out structs.IndexedCheckServiceNodes
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Health.ServiceNodes", &args, &out); err != nil {
return nil, err
}
// Filter to only passing if specified
if _, ok := params["passing"]; ok {
out.Nodes = filterNonPassing(out.Nodes)
}
return out.Nodes, nil
}
func TestCatalogListServiceNodes(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
client := rpcClient(t, s1)
defer client.Close()
args := structs.ServiceSpecificRequest{
Datacenter: "dc1",
ServiceName: "db",
ServiceTag: "slave",
TagFilter: false,
}
var out structs.IndexedServiceNodes
err := client.Call("Catalog.ServiceNodes", &args, &out)
if err == nil || err.Error() != "No cluster leader" {
t.Fatalf("err: %v", err)
}
testutil.WaitForLeader(t, client.Call, "dc1")
// Just add a node
s1.fsm.State().EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
s1.fsm.State().EnsureService(2, "foo", &structs.NodeService{"db", "db", []string{"primary"}, "127.0.0.1", 5000})
if err := client.Call("Catalog.ServiceNodes", &args, &out); err != nil {
t.Fatalf("err: %v", err)
}
if len(out.ServiceNodes) != 1 {
t.Fatalf("bad: %v", out)
}
// Try with a filter
args.TagFilter = true
out = structs.IndexedServiceNodes{}
if err := client.Call("Catalog.ServiceNodes", &args, &out); err != nil {
t.Fatalf("err: %v", err)
}
if len(out.ServiceNodes) != 0 {
t.Fatalf("bad: %v", out)
}
}
