add ibm cloud

detect.go

@@ -20,6 +20,7 @@ func Detect() string {
 		detectDigitalOcean,
 		detectGCE,
 		detectOracle,
+		detectIBMCloud,
 		detectOpenStack,
 		detectSoftlayer,
 		detectVultr,

ibmcloud.go

@@ -0,0 +1,28 @@
+package libdetectcloud
+
+import "net/http"
+
+func detectIBMCloud() string {
+	req, err := http.NewRequest("PUT", "http://api.metadata.cloud.ibm.com/instance_identity/v1/token", nil)
+	if err != nil {
+		return ""
+	}
+
+	resp, err := hc.Do(req)
+	if err != nil {
+		req, err = http.NewRequest("PUT", "https://api.metadata.cloud.ibm.com/instance_identity/v1/token", nil)
+		if err != nil {
+			return ""
+		}
+		resp, err = hc.Do(req)
+		if err != nil {
+			return ""
+		}
+	}
+
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusOK {
+		return "IBM Cloud"
+	}
+	return ""
+}