:doc:`EC2 <../../ec2>` / Client / describe_launch_templates

*************************
describe_launch_templates
*************************



.. py:method:: EC2.Client.describe_launch_templates(**kwargs)

  

  Describes one or more launch templates.

  

  See also: `AWS API Documentation <https://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeLaunchTemplates>`_  


  **Request Syntax**
  ::

    response = client.describe_launch_templates(
        DryRun=True|False,
        LaunchTemplateIds=[
            'string',
        ],
        LaunchTemplateNames=[
            'string',
        ],
        Filters=[
            {
                'Name': 'string',
                'Values': [
                    'string',
                ]
            },
        ],
        NextToken='string',
        MaxResults=123
    )
    
  :type DryRun: boolean
  :param DryRun: 

    Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is ``DryRunOperation``. Otherwise, it is ``UnauthorizedOperation``.

    

  
  :type LaunchTemplateIds: list
  :param LaunchTemplateIds: 

    One or more launch template IDs.

    

  
    - *(string) --* 

    

  :type LaunchTemplateNames: list
  :param LaunchTemplateNames: 

    One or more launch template names.

    

  
    - *(string) --* 

    

  :type Filters: list
  :param Filters: 

    One or more filters.

     

    
    * ``create-time`` - The time the launch template was created.
     
    * ``launch-template-name`` - The name of the launch template.
     
    * ``tag``:<key> - The key/value combination of a tag assigned to the resource. Use the tag key in the filter name and the tag value as the filter value. For example, to find all resources that have a tag with the key ``Owner`` and the value ``TeamA``, specify ``tag:Owner`` for the filter name and ``TeamA`` for the filter value.
     
    * ``tag-key`` - The key of a tag assigned to the resource. Use this filter to find all resources assigned a tag with a specific key, regardless of the tag value.
    

    

  
    - *(dict) --* 

      A filter name and value pair that is used to return a more specific list of results from a describe operation. Filters can be used to match a set of resources by specific criteria, such as tags, attributes, or IDs.

       

      If you specify multiple filters, the filters are joined with an ``AND``, and the request returns only results that match all of the specified filters.

       

      For more information, see `List and filter using the CLI and API <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Using_Filtering.html#Filtering_Resources_CLI>`__ in the *Amazon EC2 User Guide*.

      

    
      - **Name** *(string) --* 

        The name of the filter. Filter names are case-sensitive.

        

      
      - **Values** *(list) --* 

        The filter values. Filter values are case-sensitive. If you specify multiple values for a filter, the values are joined with an ``OR``, and the request returns all results that match any of the specified values.

        

      
        - *(string) --* 

        
    
    

  :type NextToken: string
  :param NextToken: 

    The token to request the next page of results.

    

  
  :type MaxResults: integer
  :param MaxResults: 

    The maximum number of results to return in a single call. To retrieve the remaining results, make another call with the returned ``NextToken`` value. This value can be between 1 and 200.

    

  
  
  :rtype: dict
  :returns: 
    
    **Response Syntax**

    
    ::

      {
          'LaunchTemplates': [
              {
                  'LaunchTemplateId': 'string',
                  'LaunchTemplateName': 'string',
                  'CreateTime': datetime(2015, 1, 1),
                  'CreatedBy': 'string',
                  'DefaultVersionNumber': 123,
                  'LatestVersionNumber': 123,
                  'Tags': [
                      {
                          'Key': 'string',
                          'Value': 'string'
                      },
                  ],
                  'Operator': {
                      'Managed': True|False,
                      'Principal': 'string'
                  }
              },
          ],
          'NextToken': 'string'
      }
      
    **Response Structure**

    

    - *(dict) --* 
      

      - **LaunchTemplates** *(list) --* 

        Information about the launch templates.

        
        

        - *(dict) --* 

          Describes a launch template.

          
          

          - **LaunchTemplateId** *(string) --* 

            The ID of the launch template.

            
          

          - **LaunchTemplateName** *(string) --* 

            The name of the launch template.

            
          

          - **CreateTime** *(datetime) --* 

            The time launch template was created.

            
          

          - **CreatedBy** *(string) --* 

            The principal that created the launch template.

            
          

          - **DefaultVersionNumber** *(integer) --* 

            The version number of the default version of the launch template.

            
          

          - **LatestVersionNumber** *(integer) --* 

            The version number of the latest version of the launch template.

            
          

          - **Tags** *(list) --* 

            The tags for the launch template.

            
            

            - *(dict) --* 

              Describes a tag.

              
              

              - **Key** *(string) --* 

                The key of the tag.

                 

                Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with ``aws:``.

                
              

              - **Value** *(string) --* 

                The value of the tag.

                 

                Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

                
          
        
          

          - **Operator** *(dict) --* 

            The entity that manages the launch template.

            
            

            - **Managed** *(boolean) --* 

              If ``true``, the resource is managed by a service provider.

              
            

            - **Principal** *(string) --* 

              If ``managed`` is ``true``, then the principal is returned. The principal is the service provider that manages the resource.

              
        
      
    
      

      - **NextToken** *(string) --* 

        The token to use to retrieve the next page of results. This value is ``null`` when there are no more results to return.

        
  

  **Examples**

  This example describes the specified launch template.
  ::

    response = client.describe_launch_templates(
        LaunchTemplateIds=[
            'lt-01238c059e3466abc',
        ],
    )
    
    print(response)

  
  Expected Output:
  ::

    {
        'LaunchTemplates': [
            {
                'CreateTime': datetime(2018, 1, 16, 4, 32, 57, 1, 16, 0),
                'CreatedBy': 'arn:aws:iam::123456789012:root',
                'DefaultVersionNumber': 1,
                'LatestVersionNumber': 1,
                'LaunchTemplateId': 'lt-01238c059e3466abc',
                'LaunchTemplateName': 'my-template',
            },
        ],
        'ResponseMetadata': {
            '...': '...',
        },
    }

  