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auto-start-stop-rds.yml
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auto-start-stop-rds.yml
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---
AWSTemplateFormatVersion: 2010-09-09
Description: >-
This Cloudformation template creates resources to Schedule Auto Start-Stop of RDS instances to save cost.
This involves creating 1 IAM Role with inline Policy, 6 Lambda functions with Permissions and 4 EventBridge Rules.
User also gets 5 Parameter options, in which 4 to be set in EventBridge Rules and 1 to set in Lambda Functions Environment variable.
Written by - Pinesh Singal (spinesh@), last modified 21-Dec-2021
Parameters:
AutoStartRDSSchedule:
Default: cron(0 13 ? * MON-FRI *)
Description: Auto Start RDS Instance (Mon-Fri 9:00 AM EST / 1:00 PM GMT), enter a Schedule expression e.g. cron(0 13 ? * MON-FRI *), see https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html
Type: String
MinLength: 20
MaxLength: 30
AutoStopRDSSchedule:
Default: cron(0 1 ? * MON-FRI *)
Description: Auto Stop RDS Instance (Mon-Fri 9:00 PM EST / 1:00 AM GMT), enter a Schedule expression e.g. cron(0 1 ? * MON-FRI *), see https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html
Type: String
MinLength: 20
MaxLength: 30
RDSStartStopWeekDaySchedule:
Default: cron(*/5 * ? * MON-FRI *)
Description: RDS Start Stop triggering every Week Day every 5 mins
Type: String
MinLength: 20
MaxLength: 30
RDSStartStopWeekEndSchedule:
Default: cron(*/5 * ? * SAT-SUN *)
Description: RDS Start Stop triggering every Week End every 5 mins
Type: String
MinLength: 20
MaxLength: 30
RegionTZ:
Default: UTC
Type: String
AllowedValues:
- UTC
- US/Eastern
- US/Pacific
- Africa/Johannesburg
- Asia/Hong_Kong
- Asia/Kolkata
- Asia/Tokyo
- Asia/Seoul
- Asia/Singapore
- Australia/Sydney
- Canada/Central
- Europe/Berlin
- Europe/Dublin
- Europe/London
- Europe/Rome
- Europe/Paris
- Europe/Stockholm
- Asia/Bahrain
- America/Sao_Paulo
Description: Select Timezone of your Region for execution time in Tags (Set as Lambda Environment Variable Key REGION_TZ)
Resources:
LambdaRDSRole:
Type: AWS::IAM::Role
Properties:
#RoleName: LambdaRDSStartStopRole
Description: IAM Role for Lambda to Start Stop RDS instances
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Principal:
Service:
- lambda.amazonaws.com
Action:
- sts:AssumeRole
Path: /
ManagedPolicyArns:
- arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
Policies:
- PolicyName: LambdaRDSStartStopPolicy
PolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Action:
- rds:DescribeDBInstances
- rds:DescribeDBClusters
- rds:StartDBInstance
- rds:StopDBInstance
- rds:StartDBCluster
- rds:StopDBCluster
- rds:ListTagsForResource
Resource:
- arn:aws:rds:*:*:db:*
- arn:aws:rds:*:*:cluster:*
AutoStartRDSLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: AutoStartRDSInstance
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Code:
ZipFile: |
import boto3
import os
target_db = None
region = os.environ['AWS_REGION']
rds = boto3.client('rds', region_name=region)
def get_tags_for_db(db):
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
return instance_tags['TagList']
def get_tags_for_db_cluster(db):
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
return instance_tags['TagList']
def lambda_handler(event, context):
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
db_id = db['DBInstanceIdentifier']
db_engine = db['Engine']
print('DB ID : ' + str(db_id))
db_tags = get_tags_for_db(db)
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'AutoStart' and tag['Value'].lower() == 'true', db_tags)), None)
print("AutoStart Tag : " + str(tag))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(readReplica) == 0:
if tag:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if db_status == "stopped":
AutoStarting = rds.start_db_instance(DBInstanceIdentifier=db_id)
print("Starting DB : " + str(db_id))
else:
print("Database already running : " + str(db_id))
else:
print("AutoStart Tag Key not set for Database to Start...")
else:
print("Cannot stop or start a Read-Replica Database...")
dbs = rds.describe_db_clusters()
readReplica = []
for db in dbs['DBClusters']:
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
db_id = db['DBClusterIdentifier']
db_engine = db['Engine']
print('DB ID : ' + str(db_id))
db_tags = get_tags_for_db_cluster(db)
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'AutoStart' and tag['Value'].lower() == 'true', db_tags)), None)
print("AutoStart Tag : " + str(tag))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(readReplica) == 0:
if tag:
target_db = db
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("Cluster DB ID : " + str(db_id))
print("Cluster DB Status : " + str(db_status))
if db_status == "stopped":
AutoStarting = rds.start_db_cluster(DBClusterIdentifier=db_id)
print("Starting Cluster DB : " + str(db_id))
else:
print("Cluster Database already running : " + str(db_id))
else:
print("AutoStart Tag Key not set for Cluster Database to Start...")
else:
print("Cannot stop or start a Read-Replica Cluster Database...")
Description: >-
Auto Start RDS Instance (from tag : AutoStart)
AutoStartRDSRule:
Type: AWS::Events::Rule
Properties:
Name : AutoStartRDSRule
Description: Auto Start RDS Instance (Mon-Fri 9:00 AM EST / 1:00 PM GMT)
ScheduleExpression: !Ref AutoStartRDSSchedule
State: ENABLED
Targets:
-
Arn: !GetAtt AutoStartRDSLambda.Arn
Id: AutoStartRDSLambda
AutoStartRDSLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName: !GetAtt AutoStartRDSLambda.Arn
Action: lambda:InvokeFunction
Principal: events.amazonaws.com
SourceArn : !GetAtt AutoStartRDSRule.Arn
AutoStopRDSLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: AutoStopRDSInstance
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Code:
ZipFile: |
import boto3
import os
target_db = None
region = os.environ['AWS_REGION']
rds = boto3.client('rds', region_name=region)
def get_tags_for_db(db):
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
return instance_tags['TagList']
def get_tags_for_db_cluster(db):
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
return instance_tags['TagList']
def lambda_handler(event, context):
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
db_id = db['DBInstanceIdentifier']
db_engine = db['Engine']
print('DB ID : ' + str(db_id))
db_tags = get_tags_for_db(db)
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'AutoStop' and tag['Value'].lower() == 'true', db_tags)), None)
print("AutoStop Tag : " + str(tag))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(readReplica) == 0:
if tag:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if db_status == "available":
AutoStopping = rds.stop_db_instance(DBInstanceIdentifier=db_id)
print("Stopping DB : " + str(db_id))
else:
print("Database already stopped : " + str(db_id))
else:
print("AutoStop Tag Key not set for Database to Stop...")
else:
print("Cannot stop or start a Read-Replica Database...")
dbs = rds.describe_db_clusters()
readReplica = []
for db in dbs['DBClusters']:
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
db_id = db['DBClusterIdentifier']
db_engine = db['Engine']
print('DB ID : ' + str(db_id))
db_tags = get_tags_for_db_cluster(db)
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'AutoStop' and tag['Value'].lower() == 'true', db_tags)), None)
print("AutoStop Tag : " + str(tag))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(readReplica) == 0:
if tag:
target_db = db
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("Cluster DB ID : " + str(db_id))
print("Cluster DB Status : " + str(db_status))
if db_status == "available":
AutoStopping = rds.stop_db_cluster(DBClusterIdentifier=db_id)
print("Stopping Cluster DB : " + str(db_id))
else:
print("Cluster Database already stopped : " + str(db_id))
else:
print("AutoStop Tag Key not set for Cluster Database to Stop...")
else:
print("Cannot stop or start a Read-Replica Cluster Database...")
Description: >-
Auto Stop RDS Instance (from tag : AutoStop)
AutoStopRDSRule:
Type: AWS::Events::Rule
Properties:
Name : AutoStopRDSRule
Description: Auto Stop RDS Instance (Mon-Fri 9:00 PM EST / 1:00 AM GMT)
ScheduleExpression: !Ref AutoStopRDSSchedule
State: ENABLED
Targets:
-
Arn: !GetAtt AutoStopRDSLambda.Arn
Id: AutoStopRDSLambda
AutoStopRDSLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName: !GetAtt AutoStopRDSLambda.Arn
Action: lambda:InvokeFunction
Principal: events.amazonaws.com
SourceArn : !GetAtt AutoStopRDSRule.Arn
RDSStopWeekDayLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: RDSStopWeekDay
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Environment:
Variables:
REGION_TZ:
Ref: RegionTZ
Code:
ZipFile: |
import boto3
import time
import datetime
import os
def set_region_tz():
timezone_var = None
#print(os.environ)
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
try:
timezone_var = os.environ['REGION_TZ']
print("Lambda Environment Variable Key REGION_TZ available : " + str(timezone_var))
except Exception as e:
timezone_var = os.environ['TZ']
print("Lambda Environment Variable Key REGION_TZ not available : " + str(timezone_var))
print("Timezone Var : " + str(timezone_var))
if timezone_var is None or timezone_var == '':
timezone = 'UTC'
else:
timezone = timezone_var
print("Timezone : " + str(timezone))
os.environ['TZ'] = str(timezone)
time.tzset()
return
def lambda_handler(event, context):
flag = False
set_region_tz()
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
week_day = datetime.datetime.now().isoweekday() # Monday is 1 and Sunday is 7
time_plus = time_now + datetime.timedelta(minutes=5)
time_minus = time_now - datetime.timedelta(minutes=5)
aest_time = format(time_now, '%H:%M')
print("Week Day : " + str(week_day))
print("Time Now in HH:MM : " + aest_time)
max_aest_time = format(time_plus,'%H:%M')
min_aest_time = format(time_minus,'%H:%M')
count = 0
region = os.environ['AWS_REGION']
print("Region : " + str(region))
rds = boto3.client('rds', region_name=region)
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
#print("readReplicaDB : " + str(readReplicaDB))
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
count = count + 1
db_id = db['DBInstanceIdentifier']
db_id_readreplica = db['ReadReplicaDBInstanceIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StopWeekDay', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
#print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 1 <= week_day <= 5):
if db_status == "available":
StopWeekDay = rds.stop_db_instance(DBInstanceIdentifier=db_id)
print("Stopping DB : " + str(db_id))
else:
print("Database not in Available or Running state : " + str(db_id))
else:
print("Database not available to Stop in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Database to Stop : " + str(tag_key))
else:
print("StopWeekDay Tag Key not set for Database to Stop")
else:
print("Read Replica Database not allowed to Stop : " + str(db_id))
else:
print("Aurora Engine Database")
readReplica = []
dbs = rds.describe_db_clusters()
for db in dbs['DBClusters']:
#readReplicaDB = db['ReadReplicaDBClusterIdentifiers']
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
count = count + 1
db_id = db['DBClusterIdentifier']
#db_id_readreplica = db['ReadReplicaDBClusterIdentifiers']
db_id_readreplica = db['ReadReplicaIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StopWeekDay', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
#print("DB Details : " + str(target_db))
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 1 <= week_day <= 5):
if db_status == "available":
StopWeekDay = rds.stop_db_cluster(DBClusterIdentifier=db_id)
print("Stopping Cluster DB : " + str(db_id))
else:
print("Cluster Database not in Available or Running state : " + str(db_id))
else:
print("Cluster Database not available to Stop in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Cluster Database to Stop : " + str(tag_key))
else:
print("StopWeekDay Tag Key not set for Cluster Database to Stop")
else:
print("Read Replica Cluster Database not allowed to Stop : " + str(db_id))
print("Total Instance Count : " + str(count))
Description: >-
RDS Stop Week Day Time in HH:MM (from tag : StopWeekDay)
RDSStartWeekDayLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: RDSStartWeekDay
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Environment:
Variables:
REGION_TZ:
Ref: RegionTZ
Code:
ZipFile: |
import boto3
import time
import datetime
import os
def set_region_tz():
timezone_var = None
#print(os.environ)
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
try:
timezone_var = os.environ['REGION_TZ']
print("Lambda Environment Variable Key REGION_TZ available : " + str(timezone_var))
except Exception as e:
timezone_var = os.environ['TZ']
print("Lambda Environment Variable Key REGION_TZ not available : " + str(timezone_var))
print("Timezone Var : " + str(timezone_var))
if timezone_var is None or timezone_var == '':
timezone = 'UTC'
else:
timezone = timezone_var
print("Timezone : " + str(timezone))
os.environ['TZ'] = str(timezone)
time.tzset()
return
def lambda_handler(event, context):
flag = False
set_region_tz()
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
week_day = datetime.datetime.now().isoweekday() # Monday is 1 and Sunday is 7
time_plus = time_now + datetime.timedelta(minutes=5)
time_minus = time_now - datetime.timedelta(minutes=5)
aest_time = format(time_now, '%H:%M')
print("Week Day : " + str(week_day))
print("Time Now in HH:MM : " + aest_time)
max_aest_time = format(time_plus,'%H:%M')
min_aest_time = format(time_minus,'%H:%M')
count = 0
region = os.environ['AWS_REGION']
print("Region : " + str(region))
rds = boto3.client('rds', region_name=region)
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
count = count + 1
db_id = db['DBInstanceIdentifier']
db_id_readreplica = db['ReadReplicaDBInstanceIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StartWeekDay', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 1 <= week_day <= 5):
if db_status == "stopped":
StartWeekDay = rds.start_db_instance(DBInstanceIdentifier=db_id)
print("Starting DB : " + str(db_id))
else:
print("Database not in Stopped state : " + str(db_id))
else:
print("Database not available to Start in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Database to Start : " + str(tag_key))
else:
print("StartWeekDay Tag Key not set for Database to Start")
else:
print("Read Replica Database not allowed to Start : " + str(db_id))
else:
print("Aurora Engine Database")
readReplica = []
dbs = rds.describe_db_clusters()
for db in dbs['DBClusters']:
#readReplicaDB = db['ReadReplicaDBClusterIdentifiers']
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
count = count + 1
db_id = db['DBClusterIdentifier']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
#db_id_readreplica = db['ReadReplicaDBClusterIdentifiers']
db_id_readreplica = db['ReadReplicaIdentifiers']
print("DB Engine : " + str(db_engine))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StartWeekDay', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 1 <= week_day <= 5):
if db_status == "stopped":
StartWeekDay = rds.start_db_cluster(DBClusterIdentifier=db_id)
print("Starting Cluster DB : " + str(db_id))
else:
print("Cluster Database not in Stopped state : " + str(db_id))
else:
print("Cluster Database not available to Start in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Cluster Database to Start : " + str(tag_key))
else:
print("StartWeekDay Tag Key not set for Cluster Database to Start")
else:
print("Read Replica Cluster Database not allowed to Start : " + str(db_id))
print("Total Instance Count : " + str(count))
Description: >-
RDS Start Week Day Time in HH:MM (from tag : StartWeekDay)
RDSStartStopWeekDayRule:
Type: AWS::Events::Rule
Properties:
Name : RDSStartStopWeekDayRule
Description: RDS Start Stop triggering every Week Day every 5 mins
ScheduleExpression: !Ref RDSStartStopWeekDaySchedule
State: ENABLED
Targets:
-
Arn: !GetAtt RDSStartWeekDayLambda.Arn
Id: RDSStartWeekDayLambda
-
Arn: !GetAtt RDSStopWeekDayLambda.Arn
Id: RDSStopWeekDayLambda
RDSStartWeekDayLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName: !GetAtt RDSStartWeekDayLambda.Arn
Action: lambda:InvokeFunction
Principal: events.amazonaws.com
SourceArn : !GetAtt RDSStartStopWeekDayRule.Arn
RDSStopWeekDayLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName: !GetAtt RDSStopWeekDayLambda.Arn
Action: lambda:InvokeFunction
Principal: events.amazonaws.com
SourceArn : !GetAtt RDSStartStopWeekDayRule.Arn
RDSStopWeekEndLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: RDSStopWeekEnd
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Environment:
Variables:
REGION_TZ:
Ref: RegionTZ
Code:
ZipFile: |
import boto3
import time
import datetime
import os
def set_region_tz():
timezone_var = None
#print(os.environ)
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
try:
timezone_var = os.environ['REGION_TZ']
print("Lambda Environment Variable Key REGION_TZ available : " + str(timezone_var))
except Exception as e:
timezone_var = os.environ['TZ']
print("Lambda Environment Variable Key REGION_TZ not available : " + str(timezone_var))
print("Timezone Var : " + str(timezone_var))
if timezone_var is None or timezone_var == '':
timezone = 'UTC'
else:
timezone = timezone_var
print("Timezone : " + str(timezone))
os.environ['TZ'] = str(timezone)
time.tzset()
return
def lambda_handler(event, context):
flag = False
set_region_tz()
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
week_day = datetime.datetime.now().isoweekday() # Monday is 1 and Sunday is 7
time_plus = time_now + datetime.timedelta(minutes=5)
time_minus = time_now - datetime.timedelta(minutes=5)
aest_time = format(time_now, '%H:%M')
print("Week Day : " + str(week_day))
print("Time Now in HH:MM : " + aest_time)
max_aest_time = format(time_plus,'%H:%M')
min_aest_time = format(time_minus,'%H:%M')
count = 0
region = os.environ['AWS_REGION']
print("Region : " + str(region))
rds = boto3.client('rds', region_name=region)
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
#print("readReplicaDB : " + str(readReplicaDB))
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
count = count + 1
db_id = db['DBInstanceIdentifier']
db_id_readreplica = db['ReadReplicaDBInstanceIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StopWeekEnd', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
#print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 6 <= week_day <= 7):
if db_status == "available":
StopWeekEnd = rds.stop_db_instance(DBInstanceIdentifier=db_id)
print("Stopping DB : " + str(db_id))
else:
print("Database not in Available or Running state : " + str(db_id))
else:
print("Database not available to Stop in given Week End or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Database to Stop : " + str(tag_key))
else:
print("StopWeekEnd Tag Key not set for Database to Stop")
else:
print("Read Replica Database not allowed to Stop : " + str(db_id))
else:
print("Aurora Engine Database")
readReplica = []
dbs = rds.describe_db_clusters()
for db in dbs['DBClusters']:
#readReplicaDB = db['ReadReplicaDBClusterIdentifiers']
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
count = count + 1
db_id = db['DBClusterIdentifier']
#db_id_readreplica = db['ReadReplicaDBClusterIdentifiers']
db_id_readreplica = db['ReadReplicaIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StopWeekEnd', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
#print("DB Details : " + str(target_db))
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 6 <= week_day <= 7):
if db_status == "available":
StopWeekEnd = rds.stop_db_cluster(DBClusterIdentifier=db_id)
print("Stopping Cluster DB : " + str(db_id))
else:
print("Cluster Database not in Available or Running state : " + str(db_id))
else:
print("Cluster Database not available to Stop in given Week End or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Cluster Database to Stop : " + str(tag_key))
else:
print("StopWeekEnd Tag Key not set for Cluster Database to Stop")
else:
print("Read Replica Cluster Database not allowed to Stop : " + str(db_id))
print("Total Instance Count : " + str(count))
Description: >-
RDS Stop Week End Time in HH:MM (from tag : StopWeekEnd)
RDSStartWeekEndLambda:
Type: AWS::Lambda::Function
Properties:
FunctionName: RDSStartWeekEnd
Runtime: python3.9
MemorySize: 128
Role: !GetAtt
- LambdaRDSRole
- Arn
Handler: index.lambda_handler
Timeout: 60
ReservedConcurrentExecutions: 10
Environment:
Variables:
REGION_TZ:
Ref: RegionTZ
Code:
ZipFile: |
import boto3
import time
import datetime
import os
def set_region_tz():
timezone_var = None
#print(os.environ)
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
try:
timezone_var = os.environ['REGION_TZ']
print("Lambda Environment Variable Key REGION_TZ available : " + str(timezone_var))
except Exception as e:
timezone_var = os.environ['TZ']
print("Lambda Environment Variable Key REGION_TZ not available : " + str(timezone_var))
print("Timezone Var : " + str(timezone_var))
if timezone_var is None or timezone_var == '':
timezone = 'UTC'
else:
timezone = timezone_var
print("Timezone : " + str(timezone))
os.environ['TZ'] = str(timezone)
time.tzset()
return
def lambda_handler(event, context):
flag = False
set_region_tz()
time_now = datetime.datetime.now()
print("Time Now : " + str(time_now))
week_day = datetime.datetime.now().isoweekday() # Monday is 1 and Sunday is 7
time_plus = time_now + datetime.timedelta(minutes=5)
time_minus = time_now - datetime.timedelta(minutes=5)
aest_time = format(time_now, '%H:%M')
print("Week Day : " + str(week_day))
print("Time Now in HH:MM : " + aest_time)
max_aest_time = format(time_plus,'%H:%M')
min_aest_time = format(time_minus,'%H:%M')
count = 0
region = os.environ['AWS_REGION']
print("Region : " + str(region))
rds = boto3.client('rds', region_name=region)
dbs = rds.describe_db_instances()
readReplica = []
for db in dbs['DBInstances']:
readReplicaDB = db['ReadReplicaDBInstanceIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBInstances']:
count = count + 1
db_id = db['DBInstanceIdentifier']
db_id_readreplica = db['ReadReplicaDBInstanceIdentifiers']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
print("DB ID Read Replica : " + str(db_id_readreplica))
print("DB Engine : " + str(db_engine))
if db_engine not in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBInstanceArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StartWeekEnd', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBInstanceIdentifier']
db_status = target_db['DBInstanceStatus']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 6 <= week_day <= 7):
if db_status == "stopped":
StartWeekEnd = rds.start_db_instance(DBInstanceIdentifier=db_id)
print("Starting DB : " + str(db_id))
else:
print("Database not in Stopped state : " + str(db_id))
else:
print("Database not available to Start in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Database to Start : " + str(tag_key))
else:
print("StartWeekEnd Tag Key not set for Database to Start")
else:
print("Read Replica Database not allowed to Start : " + str(db_id))
else:
print("Aurora Engine Database")
readReplica = []
dbs = rds.describe_db_clusters()
for db in dbs['DBClusters']:
#readReplicaDB = db['ReadReplicaDBClusterIdentifiers']
readReplicaDB = db['ReadReplicaIdentifiers']
readReplica.extend(readReplicaDB)
print("readReplica : " + str(readReplica))
for db in dbs['DBClusters']:
count = count + 1
db_id = db['DBClusterIdentifier']
db_engine = db['Engine']
print("DB ID : " + str(db_id))
#db_id_readreplica = db['ReadReplicaDBClusterIdentifiers']
db_id_readreplica = db['ReadReplicaIdentifiers']
print("DB Engine : " + str(db_engine))
if db_engine in ['aurora-mysql','aurora-postgresql']:
if db_id not in readReplica and len(db_id_readreplica) == 0:
instance_arn = db['DBClusterArn']
instance_tags = rds.list_tags_for_resource(ResourceName=instance_arn)
db_tags = instance_tags['TagList']
print("All Tags : " + str(db_tags))
tag = next(iter(filter(lambda tag: tag['Key'] == 'StartWeekEnd', db_tags)), None)
print("Tag : " + str(tag))
if tag:
tag_key = tag['Key']
print("Tag Key : " + str(tag_key))
tag_value = tag['Value']
print("Tag Value : " + str(tag_value))
if tag_key and tag_value:
target_db = db
print("DB Details : " + str(target_db))
db_id = target_db['DBClusterIdentifier']
db_status = target_db['Status']
print("DB ID : " + str(db_id))
print("DB Status : " + str(db_status))
if (min_aest_time <= tag_value <= max_aest_time and 6 <= week_day <= 7):
if db_status == "stopped":
StartWeekEnd = rds.start_db_cluster(DBClusterIdentifier=db_id)
print("Starting Cluster DB : " + str(db_id))
else:
print("Cluster Database not in Stopped state : " + str(db_id))
else:
print("Cluster Database not available to Start in given Week Day or Time Schedule : " + str(db_id))
else:
print("Either Tag Key or Tag Value is not set for Cluster Database to Start : " + str(tag_key))
else:
print("StartWeekEnd Tag Key not set for Cluster Database to Start")
else:
print("Read Replica Cluster Database not allowed to Start : " + str(db_id))
print("Total Instance Count : " + str(count))
Description: >-