Add glide.yaml and vendor deps

vendor/github.com/docker/engine-api/client/swarm_inspect.go

@@ -0,0 +1,21 @@
+package client
+
+import (
+	"encoding/json"
+
+	"github.com/docker/engine-api/types/swarm"
+	"golang.org/x/net/context"
+)
+
+// SwarmInspect inspects the Swarm.
+func (cli *Client) SwarmInspect(ctx context.Context) (swarm.Swarm, error) {
+	serverResp, err := cli.get(ctx, "/swarm", nil, nil)
+	if err != nil {
+		return swarm.Swarm{}, err
+	}
+
+	var response swarm.Swarm
+	err = json.NewDecoder(serverResp.body).Decode(&response)
+	ensureReaderClosed(serverResp)
+	return response, err
+}