Boto3 Scripts to Clone Elasticache Parameter Group

clone-elasticache-parametergroup.py

from curses import has_key
from urllib import response
import boto3

SourceParameterGroupName = 'sample-source-pg'
TargetParameterGroupName = 'sample-target-pg'


def createParameterGroup(client, pgName, pgFamily, pgDescription=''):
    response = client.create_cache_parameter_group(
        CacheParameterGroupName=pgName,
        CacheParameterGroupFamily=pgFamily,
        Description=pgDescription
    )
    print(pgName, 'created successfully.')


def cloneParameterGroup(client, sourcePGName, targetPGName):
    initMarker = 'abc'
    maxRecords = 100
    response = client.describe_cache_parameters(
        CacheParameterGroupName=sourcePGName,
        Source='system',
        MaxRecords=maxRecords
    )
    for parameter in response['Parameters']:
        if('ParameterValue' in parameter):
            try:
                client.modify_cache_parameter_group(
                    CacheParameterGroupName = targetPGName,
                    ParameterNameValues=[ 
                        {
                            'ParameterName': parameter['ParameterName'],
                            'ParameterValue': parameter['ParameterValue']
                        }
                    ]
                )
                print(parameter['ParameterName'], ' cloned.')
            except Exception as err:
                print('err', err)

def main():
    elasticacheClient=boto3.client('elasticache')
    # createParameterGroup(elasticacheClient, TargetParameterGroupName, 'redis4.0')
    cloneParameterGroup(elasticacheClient,SourceParameterGroupName, TargetParameterGroupName)

if __name__ == "__main__":
    main()