AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the AWS Identity and Access Management GetContextKeysForCustomPolicy API operation.

Syntax

Get-IAMContextKeysForCustomPolicy
-PolicyInputList <String[]>
-Select <String>
-PassThru <SwitchParameter>

Description

Gets a list of all of the context keys referenced in the input policies. The policies are supplied as a list of one or more strings. To get the context keys from policies associated with an IAM user, group, or role, use GetContextKeysForPrincipalPolicy. Context keys are variables maintained by AWS and its services that provide details about the context of an API query request. Context keys can be evaluated by testing against a value specified in an IAM policy. Use GetContextKeysForCustomPolicy to understand what key names and values you must supply when you call SimulateCustomPolicy. Note that all parameters are shown in unencoded form here for clarity but must be URL encoded to be included as a part of a real HTML request.

Parameters

-PassThru <SwitchParameter>
Changes the cmdlet behavior to return the value passed to the PolicyInputList parameter. The -PassThru parameter is deprecated, use -Select '^PolicyInputList' instead. This parameter will be removed in a future version.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PolicyInputList <String[]>
A list of policies for which you want the list of context keys referenced in those policies. Each document is specified as a string containing the complete, valid JSON text of an IAM policy.The regex pattern used to validate this parameter is a string of characters consisting of the following:
  • Any printable ASCII character ranging from the space character (\u0020) through the end of the ASCII character range
  • The printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF)
  • The special characters tab (\u0009), line feed (\u000A), and carriage return (\u000D)
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is 'ContextKeyNames'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.IdentityManagement.Model.GetContextKeysForCustomPolicyResponse). Specifying the name of a property of type Amazon.IdentityManagement.Model.GetContextKeysForCustomPolicyResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

This cmdlet returns a collection of System.String objects. The service call response (type Amazon.IdentityManagement.Model.GetContextKeysForCustomPolicyResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack.

Examples

Example 1

PS C:\> $policy1 = '{"Version":"2012-10-17","Statement":{"Effect":"Allow","Action":"dynamodb:*","Resource":"arn:aws:dynamodb:us-west-2:123456789012:table/","Condition":{"DateGreaterThan":{"aws:CurrentTime":"2015-08-16T12:00:00Z"}}}}'
PS C:\> $policy2 = '{"Version":"2012-10-17","Statement":{"Effect":"Allow","Action":"dynamodb:*","Resource":"arn:aws:dynamodb:us-west-2:123456789012:table/"}}'
PS C:\> Get-IAMContextKeysForCustomPolicy -PolicyInputList $policy1,$policy2
This example fetches all the context keys present in the provided policy json.In order to provide multiple policies you can provide as comma separated list of values.

Supported Version

AWS Tools for PowerShell: 2.x.y.z