chore: remove get instance id function (#22)

config/config_test.go

@@ -319,19 +319,4 @@ func Test_Misc(t *testing.T) {
 
 	t.Setenv("RELEASE_NAME", "value")
 	require.Equal(t, "value", GetReleaseName())
-
-	t.Setenv("INSTANCE_ID", "allbirds-v0-rudderstack-gw-ha-0-85d66f748f-8w4td")
-	require.Equal(t, "0", GetInstanceID())
-
-	t.Setenv("INSTANCE_ID", "prousmtusmt-v0-rs-gw-0")
-	require.Equal(t, "0", GetInstanceID())
-
-	t.Setenv("INSTANCE_ID", "prousmtusmt-v0-rs")
-	require.Equal(t, "", GetInstanceID())
-
-	t.Setenv("INSTANCE_ID", "prousmtusmt-v0-rs-gw-10")
-	require.Equal(t, "10", GetInstanceID())
-
-	t.Setenv("INSTANCE_ID", "prousmtusmt-v0-rs-gw-ha-12-234234-10")
-	require.Equal(t, "12", GetInstanceID())
 }

config/misc.go

@@ -2,13 +2,6 @@ package config
 
 import (
 	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	regexGwHa               = regexp.MustCompile(`^.*-gw-ha-\d+-\w+-\w+$`)
-	regexGwNonHaOrProcessor = regexp.MustCompile(`^.*-\d+$`)
 )
 
 // GetWorkspaceToken returns the workspace token provided in the environment variables
@@ -36,21 +29,6 @@ func GetKubeNamespace() string {
 	return os.Getenv("KUBE_NAMESPACE")
 }
 
-func GetInstanceID() string {
-	instance := GetString("INSTANCE_ID", "")
-	instanceArr := strings.Split(instance, "-")
-	length := len(instanceArr)
-	// This handles 2 kinds of server instances
-	// a) Processor OR Gateway running in non HA mod where the instance name ends with the index
-	// b) Gateway running in HA mode, where the instance name is of the form *-gw-ha-<index>-<statefulset-id>-<pod-id>
-	if (regexGwHa.MatchString(instance)) && (length > 3) {
-		return instanceArr[length-3]
-	} else if (regexGwNonHaOrProcessor.MatchString(instance)) && (length > 1) {
-		return instanceArr[length-1]
-	}
-	return ""
-}
-
 func GetReleaseName() string {
 	return os.Getenv("RELEASE_NAME")
 }