Add --context support (#4)

Signed-off-by: Phil Dibowitz <[email protected]>
jaymzh · Mar 6, 2024 · 546a558 · 546a558
1 parent c4c2cd3
commit 546a558
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Showing 6 changed files with 29 additions and 23 deletions.
diff --git a/cmd/delete.go b/cmd/delete.go
@@ -10,7 +10,7 @@ import (
 )
 
 func newDshDeleteCommand(
-    out io.Writer, namespace *string, nodeName *string,
+    out io.Writer, context *string, namespace *string, nodeName *string,
 ) *cobra.Command {
     dshDelete := &dshCmd{
         out: out,
@@ -21,17 +21,17 @@ func newDshDeleteCommand(
         Short: "delete pods for <ds>",
         Args: cobra.MatchAll(cobra.ExactArgs(1)),
         RunE: func(cmd *cobra.Command, args []string) error {
-            return dshDelete.deletePods(*namespace, args[0], *nodeName)
+            return dshDelete.deletePods(*context, *namespace, args[0], *nodeName)
         },
     }
 
     return cmd
 }
 
 func (sv *dshCmd) deletePods(
-    namespace string, ds string, nodeName string,
+    ccontext string, namespace string, ds string, nodeName string,
 ) error {
-    clientset, err := getClientSet()
+    clientset, err := getClientSet(ccontext)
     if err != nil {
         return err
     }

diff --git a/cmd/describe.go b/cmd/describe.go
@@ -14,7 +14,7 @@ import (
 )
 
 func newDshDescribeCommand(
-    out io.Writer, namespace *string, nodeName *string,
+    out io.Writer, context *string, namespace *string, nodeName *string,
 ) *cobra.Command {
     dshDescribe := &dshCmd{
         out: out,
@@ -29,17 +29,17 @@ func newDshDescribeCommand(
             if len(args) == 1 {
                 ds = args[0]
             }
-            return dshDescribe.describePods(*namespace, ds, *nodeName)
+            return dshDescribe.describePods(*context, *namespace, ds, *nodeName)
         },
     }
 
     return cmd
 }
 
 func (sv *dshCmd) describePods(
-    namespace string, ds string, nodeName string,
+    ccontext string, namespace string, ds string, nodeName string,
 ) error {
-    clientset, err := getClientSet()
+    clientset, err := getClientSet(ccontext)
     if err != nil {
         return err
     }

diff --git a/cmd/dsh.go b/cmd/dsh.go
@@ -12,6 +12,7 @@ type dshCmd struct {
 }
 
 func NewDshCommand(streams genericclioptions.IOStreams) *cobra.Command {
+    var context string
     var namespace string
     var nodeName string
 
@@ -24,6 +25,9 @@ func NewDshCommand(streams genericclioptions.IOStreams) *cobra.Command {
         },
     }
 
+    dshCmd.PersistentFlags().StringVarP(
+        &context, "context", "", "", "Context",
+    )
     dshCmd.PersistentFlags().StringVarP(
         &namespace, "namespace", "n", "default", "Namespace to look in",
     )
@@ -32,9 +36,9 @@ func NewDshCommand(streams genericclioptions.IOStreams) *cobra.Command {
     )
 
     dshCmd.AddCommand(newVersionCommand(streams.Out))
-    dshCmd.AddCommand(newDshGetCommand(streams.Out, &namespace, &nodeName))
-    dshCmd.AddCommand(newDshDeleteCommand(streams.Out, &namespace, &nodeName))
-    dshCmd.AddCommand(newDshDescribeCommand(streams.Out, &namespace, &nodeName))
-    dshCmd.AddCommand(newDshLogCommand(streams.Out, &namespace, &nodeName))
+    dshCmd.AddCommand(newDshGetCommand(streams.Out, &context, &namespace, &nodeName))
+    dshCmd.AddCommand(newDshDeleteCommand(streams.Out, &context, &namespace, &nodeName))
+    dshCmd.AddCommand(newDshDescribeCommand(streams.Out, &context, &namespace, &nodeName))
+    dshCmd.AddCommand(newDshLogCommand(streams.Out, &context, &namespace, &nodeName))
     return dshCmd
 }
diff --git a/cmd/get.go b/cmd/get.go
@@ -17,7 +17,7 @@ import (
 
 
 func newDshGetCommand(
-    out io.Writer, namespace *string, nodeName *string,
+    out io.Writer, context *string, namespace *string, nodeName *string,
 ) *cobra.Command {
     var output string
 
@@ -34,7 +34,7 @@ func newDshGetCommand(
             if len(args) == 1 {
                 ds = args[0]
             }
-            return dshGet.getPods(*namespace, ds, *nodeName, output)
+            return dshGet.getPods(*context, *namespace, ds, *nodeName, output)
         },
     }
 
@@ -46,9 +46,9 @@ func newDshGetCommand(
 }
 
 func (sv *dshCmd) getPods(
-    namespace string, ds string, nodeName string, output string,
+    context string, namespace string, ds string, nodeName string, output string,
 ) error {
-    clientset, err := getClientSet()
+    clientset, err := getClientSet(context)
     if err != nil {
         return err
     }

diff --git a/cmd/log.go b/cmd/log.go
@@ -12,7 +12,7 @@ import (
 )
 
 func newDshLogCommand(
-    out io.Writer, namespace *string, nodeName *string,
+    out io.Writer, context *string, namespace *string, nodeName *string,
 ) *cobra.Command {
     var container string
     var tail int
@@ -28,7 +28,7 @@ func newDshLogCommand(
         Args: cobra.MatchAll(cobra.ExactArgs(1)),
         RunE: func(cmd *cobra.Command, args []string) error {
             return dshLog.getLogs(
-                *namespace, args[0], *nodeName, container, follow, &tail,
+                *context, *namespace, args[0], *nodeName, container, follow, &tail,
             )
         },
     }
@@ -48,10 +48,10 @@ func newDshLogCommand(
 }
 
 func (sv *dshCmd) getLogs(
-    namespace string, ds string, nodeName string, container string, follow bool,
-    lines *int,
+    ccontext string, namespace string, ds string, nodeName string, container string,
+    follow bool, lines *int,
 ) error {
-    clientset, err := getClientSet()
+    clientset, err := getClientSet(ccontext)
     if err != nil {
         return err
     }

diff --git a/cmd/util.go b/cmd/util.go
@@ -8,9 +8,11 @@ import (
     metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
-func getClientSet() (*kubernetes.Clientset, error) {
+func getClientSet(context string) (*kubernetes.Clientset, error) {
     loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
-    configOverrides := &clientcmd.ConfigOverrides{}
+    configOverrides := &clientcmd.ConfigOverrides{
+        CurrentContext: context,
+    }
     kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
         loadingRules, configOverrides,
     )