Amazon Simple Systems Manager (SSM)

{'ParameterVersion': 'long'}

A parameter label is a user-defined alias to help you manage different versions of a parameter. When you modify a parameter, Systems Manager automatically saves a new version and increments the version number by one. A label can help you remember the purpose of a parameter when there are multiple versions.

Parameter labels have the following requirements and restrictions.

• A version of a parameter can have a maximum of 10 labels.

• You can't attach the same label to different versions of the same parameter. For example, if version 1 has the label Production, then you can't attach Production to version 2.

• You can move a label from one version of a parameter to another.

• You can't create a label when you create a new parameter. You must attach a label to a specific version of a parameter.

• You can't delete a parameter label. If you no longer want to use a parameter label, then you must move it to a different version of a parameter.

• A label can have a maximum of 100 characters.

• Labels can contain letters (case sensitive), numbers, periods (.), hyphens (-), or underscores (_).

• Labels can't begin with a number, "aws," or "ssm" (not case sensitive). If a label fails to meet these requirements, then the label is not associated with a parameter and the system displays it in the list of InvalidLabels.

See also: AWS API Documentation

Request Syntax

client.label_parameter_version(
    Name='string',
    ParameterVersion=123,
    Labels=[
        'string',
    ]
)

type Name:

string

param Name:

[REQUIRED]

The parameter name on which you want to attach one or more labels.

type ParameterVersion:

integer

param ParameterVersion:

The specific version of the parameter on which you want to attach one or more labels. If no version is specified, the system attaches the label to the latest version.

type Labels:

list

param Labels:

[REQUIRED]

One or more labels to attach to the specified parameter version.

• (string) --

rtype:

dict

returns:

Response Syntax

{
    'InvalidLabels': [
        'string',
    ],
    'ParameterVersion': 123
}

Response Structure

• (dict) --

  • InvalidLabels (list) --

    The label does not meet the requirements. For information about parameter label requirements, see Labeling Parameters in the AWS Systems Manager User Guide.

    • (string) --

  • ParameterVersion (integer) --

    The version of the parameter that has been labeled.

{'Tier': 'Standard | Advanced | Intelligent-Tiering'}

Add a parameter to the system.

See also: AWS API Documentation

Request Syntax

client.put_parameter(
    Name='string',
    Description='string',
    Value='string',
    Type='String'|'StringList'|'SecureString',
    KeyId='string',
    Overwrite=True|False,
    AllowedPattern='string',
    Tags=[
        {
            'Key': 'string',
            'Value': 'string'
        },
    ],
    Tier='Standard'|'Advanced'|'Intelligent-Tiering',
    Policies='string'
)

type Name:

string

param Name:

[REQUIRED]

The fully qualified name of the parameter that you want to add to the system. The fully qualified name includes the complete hierarchy of the parameter path and name. For example: /Dev/DBServer/MySQL/db-string13

Naming Constraints:

• Parameter names are case sensitive.

• A parameter name must be unique within an AWS Region

• A parameter name can't be prefixed with "aws" or "ssm" (case-insensitive).

• Parameter names can include only the following symbols and letters: a-zA-Z0-9_.-/

• A parameter name can't include spaces.

• Parameter hierarchies are limited to a maximum depth of fifteen levels.

For additional information about valid values for parameter names, see Requirements and Constraints for Parameter Names in the AWS Systems Manager User Guide.

type Description:

string

param Description:

Information about the parameter that you want to add to the system. Optional but recommended.

type Value:

string

param Value:

[REQUIRED]

The parameter value that you want to add to the system. Standard parameters have a value limit of 4 KB. Advanced parameters have a value limit of 8 KB.

type Type:

string

param Type:

[REQUIRED]

The type of parameter that you want to add to the system.

Items in a StringList must be separated by a comma (,). You can't use other punctuation or special character to escape items in the list. If you have a parameter value that requires a comma, then use the String data type.

type KeyId:

string

param KeyId:

The KMS Key ID that you want to use to encrypt a parameter. Either the default AWS Key Management Service (AWS KMS) key automatically assigned to your AWS account or a custom key. Required for parameters that use the SecureString data type.

If you don't specify a key ID, the system uses the default key associated with your AWS account.

• To use your default AWS KMS key, choose the SecureString data type, and do not specify the Key ID when you create the parameter. The system automatically populates Key ID with your default KMS key.

• To use a custom KMS key, choose the SecureString data type with the Key ID parameter.

type Overwrite:

boolean

param Overwrite:

Overwrite an existing parameter. If not specified, will default to "false".

type AllowedPattern:

string

param AllowedPattern:

A regular expression used to validate the parameter value. For example, for String types with values restricted to numbers, you can specify the following: AllowedPattern=^d+$

type Tags:

list

param Tags:

Optional metadata that you assign to a resource. Tags enable you to categorize a resource in different ways, such as by purpose, owner, or environment. For example, you might want to tag a Systems Manager parameter to identify the type of resource to which it applies, the environment, or the type of configuration data referenced by the parameter. In this case, you could specify the following key name/value pairs:

• Key=Resource,Value=S3bucket

• Key=OS,Value=Windows

• Key=ParameterType,Value=LicenseKey

• (dict) --

  Metadata that you assign to your AWS resources. Tags enable you to categorize your resources in different ways, for example, by purpose, owner, or environment. In Systems Manager, you can apply tags to documents, managed instances, maintenance windows, Parameter Store parameters, and patch baselines.

  • Key (string) -- [REQUIRED]

    The name of the tag.

  • Value (string) -- [REQUIRED]

    The value of the tag.

type Tier:

string

param Tier:

The parameter tier to assign to a parameter.

Parameter Store offers a standard tier and an advanced tier for parameters. Standard parameters have a content size limit of 4 KB and can't be configured to use parameter policies. You can create a maximum of 10,000 standard parameters for each Region in an AWS account. Standard parameters are offered at no additional cost.

Advanced parameters have a content size limit of 8 KB and can be configured to use parameter policies. You can create a maximum of 100,000 advanced parameters for each Region in an AWS account. Advanced parameters incur a charge. For more information, see About Advanced Parameters in the AWS Systems Manager User Guide.

You can change a standard parameter to an advanced parameter any time. But you can't revert an advanced parameter to a standard parameter. Reverting an advanced parameter to a standard parameter would result in data loss because the system would truncate the size of the parameter from 8 KB to 4 KB. Reverting would also remove any policies attached to the parameter. Lastly, advanced parameters use a different form of encryption than standard parameters.

If you no longer need an advanced parameter, or if you no longer want to incur charges for an advanced parameter, you must delete it and recreate it as a new standard parameter.

Using the Default Tier Configuration

In PutParameter requests, you can specify the tier to create the parameter in. Whenever you specify a tier in the request, Parameter Store creates or updates the parameter according to that request. However, if you do not specify a tier in a request, Parameter Store assigns the tier based on the current Parameter Store default tier configuration.

The default tier when you begin using Parameter Store is the standard-parameter tier. If you use the advanced-parameter tier, you can specify one of the following as the default:

• Advanced: With this option, Parameter Store evaluates all requests as advanced parameters.

• Intelligent-Tiering: With this option, Parameter Store evaluates each request to determine if the parameter is standard or advanced. If the request doesn't include any options that require an advanced parameter, the parameter is created in the standard-parameter tier. If one or more options requiring an advanced parameter are included in the request, Parameter Store create a parameter in the advanced-parameter tier. This approach helps control your parameter-related costs by always creating standard parameters unless an advanced parameter is necessary.

Options that require an advanced parameter include the following:

• The content size of the parameter is more than 4 KB.

• The parameter uses a parameter policy.

• More than 10,000 parameters already exist in your AWS account in the current Region.

For more information about configuring the default tier option, see Specifying a Default Parameter Tier in the AWS Systems Manager User Guide.

type Policies:

string

param Policies:

One or more policies to apply to a parameter. This action takes a JSON array. Parameter Store supports the following policy types:

Expiration: This policy deletes the parameter after it expires. When you create the policy, you specify the expiration date. You can update the expiration date and time by updating the policy. Updating the parameter does not affect the expiration date and time. When the expiration time is reached, Parameter Store deletes the parameter.

ExpirationNotification: This policy triggers an event in Amazon CloudWatch Events that notifies you about the expiration. By using this policy, you can receive notification before or after the expiration time is reached, in units of days or hours.

NoChangeNotification: This policy triggers a CloudWatch event if a parameter has not been modified for a specified period of time. This policy type is useful when, for example, a secret needs to be changed within a period of time, but it has not been changed.

All existing policies are preserved until you send new policies or an empty policy. For more information about parameter policies, see Working with Parameter Policies.

rtype:

dict

returns:

Response Syntax

{
    'Version': 123,
    'Tier': 'Standard'|'Advanced'|'Intelligent-Tiering'
}

Response Structure

• (dict) --

  • Version (integer) --

    The new version number of a parameter. If you edit a parameter value, Parameter Store automatically creates a new version and assigns this new version a unique ID. You can reference a parameter version ID in API actions or in Systems Manager documents (SSM documents). By default, if you don't specify a specific version, the system returns the latest parameter value when a parameter is called.

  • Tier (string) --

    The tier assigned to the parameter.