Add ability to read controller nodeport IP from file

- Formalize use of cloverctl config file using viper
- Default name of config file is '.cloverctl.yaml'
- Look for file in home directory or relative to
cloverctl executable
- Single value in config is for 'ControllerIP: <IP Address>'
- Still try and retrieve port value of clover-controller nodeport
automatically
- Still try and retrieve IP address of clover-controller LB if
GKE environment is being used and override config file value if found
in current kube context

- Improve error messaging if controller connect fails
- Clean up the CLI help output
- Modify jmeter 'get testresult' command to avoid the use
of flags and use arguments instead

Change-Id: Id95d1b3d1079ac84996681db62da1f9b6b8a88b5
Signed-off-by: earrage <eddie.arrage@huawei.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/clover/cloverctl/src/cloverctl/cmd/clear_visibility.go b/clover/cloverctl/src/cloverctl/cmd/clear_visibility.go
index 2ad43f1..2e66637 100644
--- a/clover/cloverctl/src/cloverctl/cmd/clear_visibility.go
+++ b/clover/cloverctl/src/cloverctl/cmd/clear_visibility.go
@@ -9,6 +9,7 @@ package cmd
 
 import (
     "fmt"
+    "os"
     "gopkg.in/resty.v1"
     "github.com/spf13/cobra"
 )
@@ -16,7 +17,7 @@ import (
 
 var visibilityclearCmd = &cobra.Command{
     Use:   "visibility",
-    Short: "Clear visibility tables",
+    Short: "Clear visibility data",
     Long: ``,
     Run: func(cmd *cobra.Command, args []string) {
         clearCollector()
@@ -28,12 +29,14 @@ func init() {
 }
 
 func clearCollector() {
+    checkControllerIP()
     url := controllerIP + "/visibility/clear"
 
     resp, err := resty.R().
     Get(url)
     if err != nil {
-        panic(err.Error())
+        fmt.Printf("Cannot connect to controller: %v\n", err)
+        os.Exit(1)
     }
     fmt.Printf("\n%v\n", resp)
 }