Add potential support other cloud providers

README.md

@@ -1,16 +1,26 @@
 # cloud-nuke
 
-This repo contains a CLI tool to delete all AWS resources in an account. cloud-nuke was created for situations when you might have an account you use for testing and need to clean up left over resources so AWS doesn't charge you for them. Also great for cleaning out accounts with redundant resources.
+This repo contains a CLI tool to delete all cloud (AWS, Azure, GCP) resources in an account. cloud-nuke was created for situations when you might have an account you use for testing and need to clean up left over resources so you're not charged for them. Also great for cleaning out accounts with redundant resources.
 
 The currently supported functionality includes:
 
+## AWS
+
 * Deleting all Auto scaling groups in an AWS account
 * Deleting all Elastic Load Balancers (Classic and V2) in an AWS account
 * Deleting all EBS Volumes in an AWS account
 * Deleting all unprotected EC2 instances in an AWS account
 * Deleting all AMIs in an AWS account
 * Deleting all Snapshots in an AWS account
 
+## Azure
+
+_Coming Soon_
+
+## GCP
+
+_Coming Soon_
+
 ### WARNING: THIS TOOL IS HIGHLY DESTRUCTIVE, ALL SUPPORTED RESOURCES WILL BE DELETED. ITS EFFECTS ARE IRREVERSIBLE AND SHOULD NEVER BE USED IN A PRODUCTION ENVIRONMENT
 
 ## Install
@@ -22,7 +32,7 @@ The currently supported functionality includes:
 
 ## Usage
 
-Simply running `cloud-nuke` will start the process of cleaning up your AWS account. You'll be shown a list of resources that'll be deleted as well as a prompt to confirm before any deletion actually takes place.
+Simply running `cloud-nuke <provider>` (e.g. `cloud-nuke aws`) will start the process of cleaning up your cloud account. You'll be shown a list of resources that'll be deleted as well as a prompt to confirm before any deletion actually takes place.
 
 ### Excluding Regions
 
@@ -44,6 +54,8 @@ Happy Nuking!!!
 
 ## Credentials
 
+### AWS
+
 In order for the `cloud-nuke` CLI tool to access your AWS, you will need to provide your AWS credentials. You can used one of the [standard AWS CLI credential mechanisms](http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html).
 
 ## Running Tests

circle.yml

@@ -50,7 +50,7 @@ jobs:
       - checkout
       - attach_workspace:
           at: /go/src/github.com/gruntwork-io/cloud-nuke
-      - run: go run main.go --older-than 24h --exclude-region us-west-2 --force
+      - run: go run main.go aws --older-than 24h --exclude-region us-west-2 --force
 
   deploy:
     <<: *defaults

commands/cli.go

@@ -23,7 +23,7 @@ func CreateCli(version string) *cli.App {
 	app.HelpName = app.Name
 	app.Author = "Gruntwork <www.gruntwork.io>"
 	app.Version = version
-	app.Usage = "A CLI tool to cleanup AWS resources (ASG, ELB, ELBv2, EBS, EC2, AMI, Snapshots). THIS TOOL WILL COMPLETELY REMOVE ALL RESOURCES AND ITS EFFECTS ARE IRREVERSIBLE!!!"
+	app.Usage = "A CLI tool to cleanup cloud resources (ASG, ELB, ELBv2, EBS, EC2, AMI, Snapshots). THIS TOOL WILL COMPLETELY REMOVE ALL RESOURCES AND ITS EFFECTS ARE IRREVERSIBLE!!!"
 	app.Flags = []cli.Flag{
 		cli.StringSliceFlag{
 			Name:  "exclude-region",
@@ -40,7 +40,7 @@ func CreateCli(version string) *cli.App {
 		},
 	}
 
-	app.Action = errors.WithPanicHandling(awsNuke)
+	app.Action = errors.WithPanicHandling(cloudNuke)
 	return app
 }
 
@@ -58,6 +58,31 @@ func parseDurationParam(paramValue string) (*time.Time, error) {
 }
 
 // Nuke it all!!!
+func cloudNuke(c *cli.Context) error {
+	if c.NArg() > 0 {
+		providers := []string{"aws", "azure", "gcp"}
+		provider := c.Args().Get(0)
+		if collections.ListContainsElement(providers, provider) {
+			switch provider {
+			case "aws":
+				return awsNuke(c)
+			case "azure":
+				return UnsupportedProviderError{
+					Name: "azure",
+				}
+			case "gcp":
+				return UnsupportedProviderError{
+					Name: "gcp",
+				}
+			}
+		}
+
+		return UnsupportedProviderError{}
+	}
+
+	return cli.ShowAppHelp(c)
+}
+
 func awsNuke(c *cli.Context) error {
 	regions := aws.GetAllRegions()
 	excludedRegions := c.StringSlice("exclude-region")

commands/errors.go

@@ -12,3 +12,15 @@ type InvalidFlagError struct {
 func (e InvalidFlagError) Error() string {
 	return fmt.Sprintf("Invalid value %s for flag %s", e.Value, e.Name)
 }
+
+type UnsupportedProviderError struct {
+	Name string
+}
+
+func (e UnsupportedProviderError) Error() string {
+	if e.Name == "" {
+		return fmt.Sprintf("Invalid cloud provider specified. Possible values aws | azure | gcp")
+	}
+
+	return fmt.Sprintf("%s is not currently supported by cloud-nuke", e.Name)
+}