Add an option to force disable using AWS to get configuration from th…

…e parameter store

Also add environment variables to disable mapping of the home and temp folders
AWS_NO_HOME == --no-home
AWS_NO_TEMP == --no-temp
AWS_NO_AWS == --no-aws

README.md

@@ -40,20 +40,20 @@ or install it through command line:
 On `OSX`:
 
 ```bash
-curl -sL https://github.com/coveo/tgf/releases/download/v1.19.1/tgf_1.19.1_macOS_64-bits.zip | bsdtar -xf- -C /usr/local/bin
+curl -sL https://github.com/coveo/tgf/releases/download/v1.19.2/tgf_1.19.2_macOS_64-bits.zip | bsdtar -xf- -C /usr/local/bin
 ```
 
 On `Linux`:
 
 ```bash
-curl -sL https://github.com/coveo/tgf/releases/download/v1.19.1/tgf_1.19.1_linux_64-bits.zip | gzip -d > /usr/local/bin/tgf && chmod +x /usr/local/bin/tgf
+curl -sL https://github.com/coveo/tgf/releases/download/v1.19.2/tgf_1.19.2_linux_64-bits.zip | gzip -d > /usr/local/bin/tgf && chmod +x /usr/local/bin/tgf
 ```
 
 On `Windows` with Powershell:
 
 ```powershell
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
-Invoke-WebRequest https://github.com/coveo/tgf/releases/download/v1.19.1/tgf_1.19.1_windows_64-bits.zip -OutFile tgf.zip
+Invoke-WebRequest https://github.com/coveo/tgf/releases/download/v1.19.2/tgf_1.19.2_windows_64-bits.zip -OutFile tgf.zip
 ```
 
 ## Configuration
@@ -150,7 +150,7 @@ IMPORTANT: Most of the tgf command line arguments are in uppercase to avoid pote
 
 It is also possible to specify additional arguments through environment variable TGF_ARGS or enable debugging mode through TGF_DEBUG.
 
-VERSION: 1.19.1
+VERSION: 1.19.2
 
 AUTHOR: Coveo
 
@@ -159,8 +159,9 @@ Flags:
   -D, --debug-docker             Print the docker command issued
   -F, --flush-cache              Invoke terragrunt with --terragrunt-update-source to flush the cache
       --get-image-name           Just return the resulting image name (alias --gi)
-      --no-home                  Disable the mapping of the home directory (alias --nh)
-      --no-temp                  Disable the mapping of the temp directory (alias --nt)
+      --no-home                  Disable the mapping of the home directory (alias --nh) or set TGF_NO_HOME
+      --no-temp                  Disable the mapping of the temp directory (alias --nt) or set TGF_NO_TEMP
+      --no-aws                   Disable use of AWS to get configuration (alias --na) or set TGF_NO_AWS
       --refresh-image            Force a refresh of the docker image (alias --ri)
       --local-image              If set, TGF will not pull the image when refreshing (alias --li)
       --interactive              On by default, use --no-interactive or --no-it to disable launching Docker in interactive mode or set TGF_INTERACTIVE to 0 or false

config.go

@@ -404,13 +404,17 @@ func parseSsmConfig(parameterValues map[string]string) string {
 // We call this function before trying to init an AWS session. This avoid trying to init a session in a non AWS context
 // and having to wait for metadata resolution or generating an error.
 func awsConfigExist() bool {
+	if noAWS {
+		return false
+	}
+
 	if os.Getenv("AWS_PROFILE")+os.Getenv("AWS_ACCESS_KEY_ID")+os.Getenv("AWS_CONFIG_FILE") != "" {
 		// If any AWS identification variable is defined, we consider that we are in an AWS environment.
 		return true
 	}
 
 	if _, err := exec.LookPath("aws"); err == nil {
-		// If aws program is installed, we also consider that we are  in an AWS environment.
+		// If aws program is installed, we also consider that we are in an AWS environment.
 		return true
 	}
 

main.go

@@ -16,7 +16,7 @@ import (
 )
 
 // Version is initialized at build time through -ldflags "-X main.Version=<version number>"
-var version = "1.19.1"
+var version = "1.19.2"
 
 var description = `
 DESCRIPTION:
@@ -69,6 +69,7 @@ var (
 	mountPoint        string
 	noHome            bool
 	noTemp            bool
+	noAWS             bool
 	refresh           bool
 	useLocalImage     bool
 	dockerInteractive = true
@@ -96,6 +97,9 @@ const (
 	envLocation    = "TGF_CONFIG_LOCATION"
 	envConfigFiles = "TGF_CONFIG_FILES"
 	envInteractive = "TGF_INTERACTIVE"
+	envNoHome      = "TGF_NO_HOME"
+	envNoTemp      = "TGF_NO_TEMP"
+	envNoAWS       = "TGF_NO_AWS"
 )
 
 func main() {
@@ -143,8 +147,9 @@ func main() {
 	app.Switch("debug-docker", "Print the docker command issued", 'D').BoolVar(&debugMode)
 	app.Switch("flush-cache", "Invoke terragrunt with --terragrunt-update-source to flush the cache", 'F').BoolVar(&flushCache)
 	app.Switch("get-image-name", "Just return the resulting image name (alias --gi)").BoolVar(&getImageName)
-	app.Switch("no-home", "Disable the mapping of the home directory (alias --nh)").BoolVar(&noHome)
-	app.Switch("no-temp", "Disable the mapping of the temp directory (alias --nt)").BoolVar(&noTemp)
+	app.Switch("no-home", "Disable the mapping of the home directory (alias --nh) or set "+envNoHome).Envar(envNoHome).BoolVar(&noHome)
+	app.Switch("no-temp", "Disable the mapping of the temp directory (alias --nt) or set "+envNoTemp).Envar(envNoTemp).BoolVar(&noTemp)
+	app.Switch("no-aws", "Disable use of AWS to get configuration (alias --na) or set "+envNoAWS).Envar(envNoAWS).BoolVar(&noAWS)
 	app.Switch("refresh-image", "Force a refresh of the docker image (alias --ri)").BoolVar(&refresh)
 	app.Switch("local-image", "If set, TGF will not pull the image when refreshing (alias --li)").BoolVar(&useLocalImage)
 	app.Switch("interactive", "On by default, use --no-interactive or --no-it to disable launching Docker in interactive mode or set "+envInteractive+" to 0 or false").Envar(envInteractive).BoolVar(&dockerInteractive)
@@ -172,6 +177,7 @@ func main() {
 	app.Switch("gi", "alias for get-image-name").Hidden().BoolVar(&getImageName)
 	app.Switch("nh", "alias for no-home").Hidden().BoolVar(&noHome)
 	app.Switch("nt", "alias for no-temp").Hidden().BoolVar(&noTemp)
+	app.Switch("na", "alias for no-aws").Hidden().BoolVar(&noAWS)
 	app.Switch("cv", "alias for current-version").Hidden().BoolVar(getCurrentVersion)
 	app.Switch("av", "alias for all-versions").Hidden().BoolVar(getAllVersions)
 	app.Switch("wd", "alias for with-docker").Hidden().BoolVar(withDockerMount)
@@ -183,7 +189,7 @@ func main() {
 	app.Argument("iu", "alias for ignore-user-config").Hidden().BoolVar(&disableUserConfig)
 	app.Argument("iuc", "alias for ignore-user-config").Hidden().BoolVar(&disableUserConfig)
 
-	// Split up the managed parameters from the unmanaged onese
+	// Split up the managed parameters from the unmanaged ones
 	if extraArgs, ok := os.LookupEnv(envArgs); ok {
 		os.Args = append(os.Args, strings.Split(extraArgs, " ")...)
 	}