Fix corrections

* Fix typos in comments.
* Add documentation of how to use multiple keys with `aws_secretsmanager` function.
* Move `Client` struct to `secretsmanager.go` file.

template/interpolate/aws/secretsmanager/secretsmanager.go

@@ -12,9 +12,10 @@ import (
 	"github.com/aws/aws-sdk-go/service/secretsmanager/secretsmanageriface"
 )
 
-// SecretsManager returns a representation of the Secrets Manager API
-func (c *Client) SecretsManager() secretsmanageriface.SecretsManagerAPI {
-	return c.api
+// Client represents an AWS Secrets Manager client
+type Client struct {
+	config *AWSConfig
+	api    secretsmanageriface.SecretsManagerAPI
 }
 
 // New creates an AWS Session Manager Client

template/interpolate/aws/secretsmanager/types.go

@@ -1,9 +1,5 @@
 package secretsmanager
 
-import (
-	"github.com/aws/aws-sdk-go/service/secretsmanager/secretsmanageriface"
-)
-
 // AWSConfig store configuration used to initialize
 // secrets manager client.
 type AWSConfig struct {
@@ -13,21 +9,11 @@ type AWSConfig struct {
 // SecretSpec represent specs of secret to be searched
 // If Key field is not set then package will return first
 // secret key stored in secret name.
-//
-// maps to ClusterConfig
 type SecretSpec struct {
 	Name string
 	Key  string
 }
 
-// Client represents an AWS Secrets Manager client
-//
-// maps to ProviderServices
-type Client struct {
-	config *AWSConfig
-	api    secretsmanageriface.SecretsManagerAPI
-}
-
 // SecretString is a concret representation
 // of an AWS Secrets Manager Secret String
 type SecretString struct {

template/interpolate/funcs.go

@@ -10,11 +10,10 @@ import (
 	"text/template"
 	"time"
 
-	awssmapi "github.com/hashicorp/packer/template/interpolate/aws/secretsmanager"
-
 	consulapi "github.com/hashicorp/consul/api"
 	"github.com/hashicorp/packer/common/uuid"
 	"github.com/hashicorp/packer/helper/common"
+	awssmapi "github.com/hashicorp/packer/template/interpolate/aws/secretsmanager"
 	"github.com/hashicorp/packer/version"
 	vaultapi "github.com/hashicorp/vault/api"
 	strftime "github.com/jehiah/go-strftime"
@@ -335,7 +334,7 @@ func funcGenAwsSecrets(ctx *Context) interface{} {
 			return "", errors.New("AWS Secrets Manager vars are only allowed in the variables section")
 		}
 
-		// Check if at leas 1 parameter has been used
+		// Check if at least 1 parameter has been used
 		if len(secret) == 0 {
 			return "", errors.New("At least one parameter must be used")
 		}
@@ -349,7 +348,7 @@ func funcGenAwsSecrets(ctx *Context) interface{} {
 		var name, key string
 		name = secret[0]
 		// key is optional if not used we fetch the first
-		// value stored in given secret. If more that two parameters
+		// value stored in given secret. If more than two parameters
 		// are passed we take second param and ignore the others
 		if len(secret) > 1 {
 			key = secret[1]

website/pages/docs/templates/user-variables.mdx

@@ -203,7 +203,16 @@ a user variable to an AWS Secrets Manager secret.
 }
 ```
 
-This will default `password` to the secret value stored at AWS Secrets Manager.
+In the example above it is assumed that only one key is stored in `sample/app/password` if there are multiple keys stored in it then you need to indicate the specific key you want to fetch as shown below.
+
+```json
+{
+  "variables": {
+    "db_password": "{{ aws_secretsmanager `sample/app/passwords` `db` }}",
+    "api_key": "{{ aws_secretsmanager `sample/app/passwords` `api_key` }}"
+  }
+}
+```
 
 In order to use this function you have to configure valid AWS credentials using
 one of the following methods: