def create_config(session, domain, keypair=None):
"""
Create the CloudFormationConfiguration object.
Args:
session: amazon session object
domain (string): domain of the stack being created
keypair: keypair used to by instances being created
Returns: the config for the Cloud Formation stack
"""
names = AWSNames(domain)
config = CloudFormationConfiguration('redis', domain, const.REGION)
vpc_id = config.find_vpc(session)
az_subnets, external_subnets = config.find_all_availability_zones(session)
sgs = aws.sg_lookup_all(session, vpc_id)
# Create the Cache and CacheState Redis Clusters
REDIS_PARAMETERS = {
"maxmemory-policy": "volatile-lru",
"reserved-memory": str(get_scenario(const.REDIS_RESERVED_MEMORY, 0) * 1000000),
"maxmemory-samples": "5", # ~ 5 - 10
}
config.add_redis_replication("Cache",
names.cache,
az_subnets,
[sgs[names.internal]],
type_=const.REDIS_CACHE_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE,
parameters=REDIS_PARAMETERS)
config.add_redis_replication("CacheState",
names.cache_state,
az_subnets,
[sgs[names.internal]],
type_=const.REDIS_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE)
return config
def create_config(session, domain, keypair=None):
"""
Create the CloudFormationConfiguration object.
Args:
session: amazon session object
domain (string): domain of the stack being created
keypair: keypair used to by instances being created
Returns: the config for the Cloud Formation stack
"""
names = AWSNames(domain)
config = CloudFormationConfiguration('redis', domain, const.REGION)
vpc_id = config.find_vpc(session)
az_subnets, external_subnets = config.find_all_availability_zones(session)
sgs = aws.sg_lookup_all(session, vpc_id)
# Create the Cache and CacheState Redis Clusters
REDIS_PARAMETERS = {
"maxmemory-policy": "volatile-lru",
"reserved-memory": str(get_scenario(const.REDIS_RESERVED_MEMORY, 0) * 1000000),
"maxmemory-samples": "5", # ~ 5 - 10
}
config.add_redis_replication("Cache",
names.cache,
az_subnets,
[sgs[names.internal]],
type_=const.REDIS_CACHE_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE,
parameters=REDIS_PARAMETERS)
config.add_redis_replication("CacheState",
names.cache_state,
az_subnets,
[sgs[names.internal]],
type_=const.REDIS_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE)
# This one may not be created depending on the scenario type.
if get_scenario(const.REDIS_SESSION_TYPE, None) is not None:
config.add_redis_replication("CacheSession",
names.cache_session,
az_subnets,
[sgs[names.internal]],
type_=const.REDIS_SESSION_TYPE,
version="3.2.4",
clusters=1)
return config
def create_config(bosslet_config):
names = bosslet_config.names
session = bosslet_config.session
config = CloudFormationConfiguration('redis', bosslet_config)
vpc_id = config.find_vpc()
internal_subnets, external_subnets = config.find_all_subnets()
sgs = aws.sg_lookup_all(session, vpc_id)
# Create the Cache and CacheState Redis Clusters
REDIS_PARAMETERS = {
"maxmemory-policy": "volatile-lru",
"reserved-memory-percent": str(const.REDIS_RESERVED_MEMORY_PERCENT),
"maxmemory-samples": "5", # ~ 5 - 10
}
config.add_redis_replication("Cache",
names.cache.redis,
internal_subnets,
[sgs[names.internal.sg]],
type_=const.REDIS_CACHE_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE,
parameters=REDIS_PARAMETERS)
config.add_redis_replication("CacheState",
names.cache_state.redis,
internal_subnets,
[sgs[names.internal.sg]],
type_=const.REDIS_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE)
# This one may not be created depending on the scenario type.
if const.REDIS_SESSION_TYPE is not None:
config.add_redis_replication("CacheSession",
names.cache_session.redis,
internal_subnets,
[sgs[names.internal.sg]],
type_=const.REDIS_SESSION_TYPE,
version="3.2.4",
clusters=1)
return config
def create_config(bosslet_config):
names = bosslet_config.names
session = bosslet_config.session
config = CloudFormationConfiguration('redis', bosslet_config)
vpc_id = config.find_vpc()
internal_subnets, external_subnets = config.find_all_subnets()
sgs = aws.sg_lookup_all(session, vpc_id)
# Create the Cache and CacheState Redis Clusters
REDIS_PARAMETERS = {
"maxmemory-policy": "volatile-lru",
"reserved-memory-percent": str(const.REDIS_RESERVED_MEMORY_PERCENT),
"maxmemory-samples": "5", # ~ 5 - 10
}
config.add_redis_replication("Cache",
names.cache.redis,
internal_subnets, [sgs[names.internal.sg]],
type_=const.REDIS_CACHE_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE,
parameters=REDIS_PARAMETERS)
config.add_redis_replication("CacheState",
names.cache_state.redis,
internal_subnets, [sgs[names.internal.sg]],
type_=const.REDIS_TYPE,
version="3.2.4",
clusters=const.REDIS_CLUSTER_SIZE)
# This one may not be created depending on the scenario type.
if const.REDIS_SESSION_TYPE is not None:
config.add_redis_replication("CacheSession",
names.cache_session.redis,
internal_subnets,
[sgs[names.internal.sg]],
type_=const.REDIS_SESSION_TYPE,
version="3.2.4",
clusters=1)
if const.REDIS_THROTTLE_TYPE is not None:
vpc_id = config.find_vpc()
internal_sg = aws.sg_lookup(session, vpc_id, names.internal.sg)
lambda_subnets, _ = config.find_all_subnets(compatibility='lambda')
config.add_redis_replication("CacheThrottle",
names.cache_throttle.redis,
internal_subnets,
[sgs[names.internal.sg]],
type_=const.REDIS_THROTTLE_TYPE,
version="3.2.4",
clusters=1)
config.add_lambda("CacheThrottleLambda",
names.cache_throttle.lambda_,
aws.role_arn_lookup(session,
'lambda_basic_execution'),
description="Reset Boss throttling metrics",
security_groups=[internal_sg],
subnets=lambda_subnets,
handler='index.handler',
timeout=120,
memory=1024)
# Schedule the lambda to be executed at midnight for the timezone where the bosslet is located
hour = TIMEZONE_OFFSET.get(bosslet_config.REGION, 0)
schedule = 'cron(0 {} * * ? *)'.format(hour)
config.add_cloudwatch_rule(
'CacheThrottleReset',
name=names.cache_throttle.cw,
description='Reset the current Boss throttling metrics',
targets=[
{
'Arn': Arn('CacheThrottleLambda'),
'Id': names.cache_throttle.lambda_,
'Input': json.dumps({'host': names.cache_throttle.redis}),
},
],
schedule=schedule,
depends_on=['CacheThrottleLambda'])
config.add_lambda_permission('CacheThrottlePerms',
names.cache_throttle.lambda_,
principal='events.amazonaws.com',
source=Arn('CacheThrottleReset'))
return config