Merge pull request #92 from grafana/jjo/make-provider-name-configurable

make provider name configurable via cli flags

aws/disk_test.go

@@ -25,7 +25,7 @@ func TestDisk(t *testing.T) {
 						},
 					},
 				},
-				&Provider{},
+				nil,
 				nil,
 			}
 

aws/provider.go

@@ -13,6 +13,8 @@ import (
 
 var _ unused.Provider = &Provider{}
 
+var ProviderName = "AWS"
+
 // Provider implements [unused.Provider] for AWS.
 type Provider struct {
 	client *ec2.Client
@@ -21,7 +23,7 @@ type Provider struct {
 }
 
 // Name returns AWS.
-func (p *Provider) Name() string { return "AWS" }
+func (p *Provider) Name() string { return ProviderName }
 
 // Meta returns the provider metadata.
 func (p *Provider) Meta() unused.Meta { return p.meta }

azure/disk_test.go

@@ -25,7 +25,7 @@ func TestDisk(t *testing.T) {
 				TimeCreated: &date.Time{Time: createdAt},
 			},
 		},
-		&Provider{},
+		nil,
 		nil,
 	}
 

azure/provider.go

@@ -9,6 +9,8 @@ import (
 	"github.com/grafana/unused"
 )
 
+var ProviderName = "Azure"
+
 var _ unused.Provider = &Provider{}
 
 const ResourceGroupMetaKey = "resource-group"
@@ -20,7 +22,7 @@ type Provider struct {
 }
 
 // Name returns Azure.
-func (p *Provider) Name() string { return "Azure" }
+func (p *Provider) Name() string { return ProviderName }
 
 // Meta returns the provider metadata.
 func (p *Provider) Meta() unused.Meta { return p.meta }

cmd/internal/providers.go

@@ -84,8 +84,11 @@ func CreateProviders(ctx context.Context, logger *slog.Logger, gcpProjects, awsP
 
 // ProviderFlags adds the provider configuration flags to the given
 // flag set.
-func ProviderFlags(fs *flag.FlagSet, gcp, aws, azure *StringSliceFlag) {
-	fs.Var(gcp, "gcp.project", "GCP project ID (can be specified multiple times)")
-	fs.Var(aws, "aws.profile", "AWS profile (can be specified multiple times)")
-	fs.Var(azure, "azure.sub", "Azure subscription (can be specified multiple times)")
+func ProviderFlags(fs *flag.FlagSet, gcpProject, awsProfile, azureSub *StringSliceFlag) {
+	fs.Var(gcpProject, "gcp.project", "GCP project ID (can be specified multiple times)")
+	fs.Var(awsProfile, "aws.profile", "AWS profile (can be specified multiple times)")
+	fs.Var(azureSub, "azure.sub", "Azure subscription (can be specified multiple times)")
+	fs.StringVar(&gcp.ProviderName, "gcp.providername", gcp.ProviderName, `GCP provider name to use, default: "GCP" (e.g. "GKE")`)
+	fs.StringVar(&aws.ProviderName, "aws.providername", aws.ProviderName, `AWS provider name to use, default: "AWS" (e.g. "EKS")`)
+	fs.StringVar(&azure.ProviderName, "azure.providername", azure.ProviderName, `Azure provider name to use, default: "Azure" (e.g. "AKS")`)
 }

cmd/internal/providers_test.go

@@ -83,33 +83,46 @@ func TestCreateProviders(t *testing.T) {
 }
 
 func TestProviderFlags(t *testing.T) {
-	var gcp, aws, azure internal.StringSliceFlag
+	var gcpProject, awsProfile, azureSub internal.StringSliceFlag
 
 	fs := flag.NewFlagSet("test", flag.ContinueOnError)
 	fs.SetOutput(io.Discard)
 	fs.Usage = func() {}
 
-	internal.ProviderFlags(fs, &gcp, &aws, &azure)
+	internal.ProviderFlags(fs, &gcpProject, &awsProfile, &azureSub)
 
 	args := []string{
 		"-gcp.project=my-project",
 		"-azure.sub=my-subscription",
 		"-aws.profile=my-profile",
+		"-gcp.providername=GKE",
+		"-azure.providername=AKS",
+		"-aws.providername=EKS",
 	}
 
 	if err := fs.Parse(args); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
-	tests := map[*internal.StringSliceFlag]string{
-		&gcp:   "my-project",
-		&aws:   "my-profile",
-		&azure: "my-subscription",
+	testSlices := map[*internal.StringSliceFlag]string{
+		&gcpProject: "my-project",
+		&awsProfile: "my-profile",
+		&azureSub:   "my-subscription",
+	}
+	testStrings := map[*string]string{
+		&gcp.ProviderName:   "GKE",
+		&aws.ProviderName:   "EKS",
+		&azure.ProviderName: "AKS",
 	}
 
-	for v, exp := range tests {
+	for v, exp := range testSlices {
 		if len(*v) != 1 || (*v)[0] != exp {
 			t.Errorf("expecting one value (%q), got %v", exp, v)
 		}
 	}
+	for v, exp := range testStrings {
+		if *v != exp {
+			t.Errorf("expecting %q, got %v", exp, v)
+		}
+	}
 }

gcp/disk_test.go

@@ -20,7 +20,7 @@ func TestDisk(t *testing.T) {
 			CreationTimestamp:   createdAt.Format(time.RFC3339),
 			LastDetachTimestamp: detachedAt.Format(time.RFC3339),
 		},
-		&Provider{},
+		nil,
 		unused.Meta{"foo": "bar"},
 	}
 

gcp/provider.go

@@ -12,6 +12,8 @@ import (
 	compute "google.golang.org/api/compute/v1"
 )
 
+var ProviderName = "GCP"
+
 // ErrMissingProject is the error used when no project ID is provided
 // when trying to create a provider.
 var ErrMissingProject = errors.New("missing project id")
@@ -27,7 +29,7 @@ type Provider struct {
 }
 
 // Name returns GCP.
-func (p *Provider) Name() string { return "GCP" }
+func (p *Provider) Name() string { return ProviderName }
 
 // Meta returns the provider metadata.
 func (p *Provider) Meta() unused.Meta { return p.meta }