Terraform module which creates RDS Aurora database resources on AWS and can create different type of databases. Currently it supports Postgres and MySQL.
We eat, drink, sleep and most importantly love DevOps. We are working towards strategies for standardizing architecture while ensuring security for the infrastructure. We are strong believer of the philosophy Bigger problems are always solved by breaking them into smaller manageable problems. Resonating with microservices architecture, it is considered best-practice to run database, cluster, storage in smaller connected yet manageable pieces within the infrastructure.
This module is basically combination of Terraform open source and includes automatation tests and examples. It also helps to create and improve your infrastructure with minimalistic code instead of maintaining the whole infrastructure code yourself.
We have fifty plus terraform modules. A few of them are comepleted and are available for open source usage while a few others are in progress.
This module has a few dependencies:
IMPORTANT: Since the master branch used in source varies based on new modifications, we suggest that you use the release versions here.
Here are some examples of how you can use this module in your inventory structure:
module "aurora" {
source = "clouddrove/aurora/aws"
version = "1.3.0"
name = "mysql"
environment = "test"
engine = "aurora-mysql"
engine_version = "8.0"
master_username = "root"
database_name = "test-db"
sg_ids = []
allowed_ports = [3306]
allowed_ip = [module.vpc.vpc_cidr_block, "0.0.0.0/0"]
instances = {
1 = {
instance_class = "db.r5.large"
publicly_accessible = true
}
2 = {
identifier = "mysql-static-1"
instance_class = "db.r5.2xlarge"
}
3 = {
identifier = "mysql-excluded-1"
instance_class = "db.r5.xlarge"
promotion_tier = 15
}
}
vpc_id = module.vpc.vpc_id
db_subnet_group_name = "mysql-aurora"
security_group_rules = {
vpc_ingress = {
cidr_blocks = module.subnets.public_subnet_id
}
}
apply_immediately = true
skip_final_snapshot = true
subnets = module.subnets.public_subnet_id
create_db_cluster_parameter_group = true
db_cluster_parameter_group_name = "aurora-mysql"
db_cluster_parameter_group_family = "aurora-mysql8.0"
db_cluster_parameter_group_description = "mysql aurora example cluster parameter group"
db_cluster_parameter_group_parameters = [
{
name = "connect_timeout"
value = 120
apply_method = "immediate"
}, {
name = "innodb_lock_wait_timeout"
value = 300
apply_method = "immediate"
}, {
name = "log_output"
value = "FILE"
apply_method = "immediate"
}, {
name = "max_allowed_packet"
value = "67108864"
apply_method = "immediate"
}, {
name = "aurora_parallel_query"
value = "OFF"
apply_method = "pending-reboot"
}, {
name = "binlog_format"
value = "ROW"
apply_method = "pending-reboot"
}, {
name = "log_bin_trust_function_creators"
value = 1
apply_method = "immediate"
}, {
name = "require_secure_transport"
value = "ON"
apply_method = "immediate"
}, {
name = "tls_version"
value = "TLSv1.2"
apply_method = "pending-reboot"
}
]
create_db_parameter_group = true
db_parameter_group_name = "aurora-mysql"
db_parameter_group_family = "aurora-mysql8.0"
db_parameter_group_description = "mysql aurora example DB parameter group"
db_parameter_group_parameters = [
{
name = "connect_timeout"
value = 60
apply_method = "immediate"
}, {
name = "general_log"
value = 0
apply_method = "immediate"
}, {
name = "innodb_lock_wait_timeout"
value = 300
apply_method = "immediate"
}, {
name = "log_output"
value = "FILE"
apply_method = "pending-reboot"
}, {
name = "long_query_time"
value = 5
apply_method = "immediate"
}, {
name = "max_connections"
value = 2000
apply_method = "immediate"
}, {
name = "slow_query_log"
value = 1
apply_method = "immediate"
}, {
name = "log_bin_trust_function_creators"
value = 1
apply_method = "immediate"
}
]
enabled_cloudwatch_logs_exports = ["audit", "error", "general", "slowquery"]
}
module "postgres" {
source = "clouddrove/aurora/aws"
name = "postgresql"
environment = "test"
engine = "aurora-postgresql"
engine_version = "14.7"
master_username = "root"
storage_type = "aurora-iopt1"
sg_ids = []
allowed_ports = [5432]
subnets = module.public_subnets.public_subnet_id
allowed_ip = [module.vpc.vpc_cidr_block, "0.0.0.0/0"]
instances = {
1 = {
instance_class = "db.r5.2xlarge"
publicly_accessible = true
}
2 = {
identifier = "static-member-1"
instance_class = "db.r5.2xlarge"
}
3 = {
identifier = "excluded-member-1"
instance_class = "db.r5.large"
promotion_tier = 15
}
}
endpoints = {
static = {
identifier = "static-custom-endpt"
type = "ANY"
static_members = ["static-member-1"]
tags = { Endpoint = "static-members" }
}
excluded = {
identifier = "excluded-custom-endpt"
type = "READER"
excluded_members = ["excluded-member-1"]
tags = { Endpoint = "excluded-members" }
}
}
vpc_id = module.vpc.vpc_id
db_subnet_group_name = "aurora-postgre"
database_name = "postgres"
security_group_rules = {
vpc_ingress = {
cidr_blocks = module.public_subnets.public_subnet_id
}
egress_example = {
cidr_blocks = ["10.33.0.0/28"]
description = "Egress to corporate printer closet"
}
}
apply_immediately = true
skip_final_snapshot = true
create_db_cluster_parameter_group = true
db_cluster_parameter_group_name = "aurora-postgre"
db_cluster_parameter_group_family = "aurora-postgresql14"
db_cluster_parameter_group_description = "aurora postgres example cluster parameter group"
db_cluster_parameter_group_parameters = [
{
name = "log_min_duration_statement"
value = 4000
apply_method = "immediate"
}, {
name = "rds.force_ssl"
value = 1
apply_method = "immediate"
}
]
create_db_parameter_group = true
db_parameter_group_name = "aurora-postgre"
db_parameter_group_family = "aurora-postgresql14"
db_parameter_group_description = "postgres aurora example DB parameter group"
db_parameter_group_parameters = [
{
name = "log_min_duration_statement"
value = 4000
apply_method = "immediate"
}
]
enabled_cloudwatch_logs_exports = ["postgresql"]
create_cloudwatch_log_group = true
} module "aurora" {
source = "clouddrove/aurora/aws"
version = "1.3.0"
name = "mysql"
environment = "test"
engine = "aurora-mysql"
engine_mode = "provisioned"
engine_version = "8.0"
master_username = "root"
database_name = "test-db"
sg_ids = []
allowed_ports = [3306]
allowed_ip = [module.vpc.vpc_cidr_block, "0.0.0.0/0"]
vpc_id = module.vpc.vpc_id
db_subnet_group_name = "mysql-aurora-serverless"
subnets = module.subnets.public_subnet_id
security_group_rules = {
vpc_ingress = {
cidr_blocks = module.subnets.public_subnet_id
}
}
monitoring_interval = 60
apply_immediately = true
skip_final_snapshot = true
serverlessv2_scaling_configuration = {
min_capacity = 2
max_capacity = 10
}
instance_class = "db.serverless"
instances = {
one = {}
two = {}
}
}
module "postgres" {
source = "clouddrove/aurora/aws"
version = "1.3.0"
name = "postgresql"
environment = "test"
engine = "aurora-postgresql"
engine_mode = "provisioned"
engine_version = "14.5"
master_username = "root"
database_name = "postgres"
vpc_id = module.vpc.vpc_id
subnets = module.subnets.public_subnet_id
sg_ids = []
allowed_ports = [5432]
db_subnet_group_name = "auror-postgres-serverless"
allowed_ip = [module.vpc.vpc_cidr_block, "0.0.0.0/0"]
security_group_rules = {
vpc_ingress = {
cidr_blocks = module.subnets.public_subnet_id
}
}
monitoring_interval = 60
apply_immediately = true
skip_final_snapshot = true
serverlessv2_scaling_configuration = {
min_capacity = 2
max_capacity = 10
}
instance_class = "db.serverless"
instances = {
one = {}
two = {}
}
}| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| allocated_storage | The amount of storage in gibibytes (GiB) to allocate to each DB instance in the Multi-AZ DB cluster. (This setting is required to create a Multi-AZ DB cluster) | number |
null |
no |
| allow_major_version_upgrade | Enable to allow major engine version upgrades when changing engine versions. Defaults to false |
bool |
false |
no |
| allowed_ip | List of allowed ip. | list(any) |
[] |
no |
| allowed_ports | List of allowed ingress ports | list(any) |
[] |
no |
| apply_immediately | Specifies whether any cluster modifications are applied immediately, or during the next maintenance window. Default is false |
bool |
null |
no |
| auto_minor_version_upgrade | Indicates that minor engine upgrades will be applied automatically to the DB instance during the maintenance window. Default true |
bool |
null |
no |
| autoscaling_enabled | Determines whether autoscaling of the cluster read replicas is enabled | bool |
false |
no |
| autoscaling_max_capacity | Maximum number of read replicas permitted when autoscaling is enabled | number |
2 |
no |
| autoscaling_min_capacity | Minimum number of read replicas permitted when autoscaling is enabled | number |
0 |
no |
| autoscaling_policy_name | Autoscaling policy name | string |
"target-metric" |
no |
| autoscaling_scale_in_cooldown | Cooldown in seconds before allowing further scaling operations after a scale in | number |
300 |
no |
| autoscaling_scale_out_cooldown | Cooldown in seconds before allowing further scaling operations after a scale out | number |
300 |
no |
| autoscaling_target_connections | Average number of connections threshold which will initiate autoscaling. Default value is 70% of db.r4/r5/r6g.large's default max_connections | number |
700 |
no |
| autoscaling_target_cpu | CPU threshold which will initiate autoscaling | number |
70 |
no |
| availability_zones | List of EC2 Availability Zones for the DB cluster storage where DB cluster instances can be created. RDS automatically assigns 3 AZs if less than 3 AZs are configured, which will show as a difference requiring resource recreation next Terraform apply | list(string) |
null |
no |
| backtrack_window | The target backtrack window, in seconds. Only available for aurora engine currently. To disable backtracking, set this value to 0. Must be between 0 and 259200 (72 hours) |
number |
null |
no |
| backup_retention_period | The days to retain backups for. Default 7 |
number |
7 |
no |
| ca_cert_identifier | The identifier of the CA certificate for the DB instance | string |
null |
no |
| cidr_blocks | equal to 0. The supported values are defined in the IpProtocol argument on the IpPermission API reference | list(string) |
[ |
no |
| cloudwatch_log_group_kms_key_id | The ARN of the KMS Key to use when encrypting log data | string |
null |
no |
| cloudwatch_log_group_retention_in_days | The number of days to retain CloudWatch logs for the DB instance | number |
7 |
no |
| cluster_members | List of RDS Instances that are a part of this cluster | list(string) |
null |
no |
| cluster_tags | A map of tags to add to only the cluster. Used for AWS Instance Scheduler tagging | map(string) |
{} |
no |
| cluster_timeouts | Create, update, and delete timeout configurations for the cluster | map(string) |
{} |
no |
| cluster_use_name_prefix | Whether to use name as a prefix for the cluster |
bool |
false |
no |
| copy_tags_to_snapshot | Copy all Cluster tags to snapshots |
bool |
null |
no |
| create | Whether cluster should be created (affects nearly all resources) | bool |
true |
no |
| create_cloudwatch_log_group | Determines whether a CloudWatch log group is created for each enabled_cloudwatch_logs_exports |
bool |
true |
no |
| create_db_cluster_parameter_group | Determines whether a cluster parameter should be created or use existing | bool |
false |
no |
| create_db_parameter_group | Determines whether a DB parameter should be created or use existing | bool |
false |
no |
| create_monitoring_role | Determines whether to create the IAM role for RDS enhanced monitoring | bool |
true |
no |
| database_name | Name for an automatically created database on cluster creation | string |
"" |
no |
| db_cluster_db_instance_parameter_group_name | Instance parameter group to associate with all instances of the DB cluster. The db_cluster_db_instance_parameter_group_name is only valid in combination with allow_major_version_upgrade |
string |
null |
no |
| db_cluster_instance_class | The compute and memory capacity of each DB instance in the Multi-AZ DB cluster, for example db.m6g.xlarge. Not all DB instance classes are available in all AWS Regions, or for all database engines | string |
null |
no |
| db_cluster_parameter_group_description | The description of the DB cluster parameter group. Defaults to "Managed by Terraform" | string |
null |
no |
| db_cluster_parameter_group_family | The family of the DB cluster parameter group | string |
"" |
no |
| db_cluster_parameter_group_name | The name of the DB cluster parameter group | string |
null |
no |
| db_cluster_parameter_group_parameters | A list of DB cluster parameters to apply. Note that parameters may differ from a family to an other | list(map(string)) |
[] |
no |
| db_parameter_group_description | The description of the DB parameter group. Defaults to "Managed by Terraform" | string |
null |
no |
| db_parameter_group_family | The family of the DB parameter group | string |
"" |
no |
| db_parameter_group_name | The name of the DB parameter group | string |
null |
no |
| db_parameter_group_parameters | A list of DB parameters to apply. Note that parameters may differ from a family to an other | list(map(string)) |
[] |
no |
| db_subnet_group_name | The name of the subnet group name (existing or created) | string |
"" |
no |
| deletion_protection | If the DB instance should have deletion protection enabled. The database can't be deleted when this value is set to true. The default is false |
bool |
null |
no |
| egress_protocol | equal to 0. The supported values are defined in the IpProtocol argument on the IpPermission API reference | number |
-1 |
no |
| egress_rule | Enable to create egress rule | bool |
true |
no |
| enable | Set to false to prevent the module from creating any resources. | bool |
true |
no |
| enable_global_write_forwarding | Whether cluster should forward writes to an associated global cluster. Applied to secondary clusters to enable them to forward writes to an aws_rds_global_cluster's primary cluster |
bool |
null |
no |
| enable_http_endpoint | Enable HTTP endpoint (data API). Only valid when engine_mode is set to serverless |
bool |
null |
no |
| enable_security_group | Enable default Security Group with only Egress traffic allowed. | bool |
true |
no |
| enabled_cloudwatch_logs_exports | Set of log types to export to cloudwatch. If omitted, no logs will be exported. The following log types are supported: audit, error, general, slowquery, postgresql |
list(string) |
[] |
no |
| enabled_subnet_group | Set to false to prevent the module from creating any resources. | bool |
true |
no |
| endpoints | Map of additional cluster endpoints and their attributes to be created | any |
{} |
no |
| engine | The name of the database engine to be used for this DB cluster. Defaults to aurora. Valid Values: aurora, aurora-mysql, aurora-postgresql |
string |
null |
no |
| engine_mode | The database engine mode. Valid values: global, multimaster, parallelquery, provisioned, serverless. Defaults to: provisioned |
string |
"provisioned" |
no |
| engine_version | The database engine version. Updating this argument results in an outage | string |
null |
no |
| environment | Environment (e.g. prod, dev, staging). |
string |
"" |
no |
| final_snapshot_identifier | The name of your final DB snapshot when this DB cluster is deleted. If omitted, no final snapshot will be made | string |
null |
no |
| from_port | (Required) Start port (or ICMP type number if protocol is icmp or icmpv6). | number |
0 |
no |
| global_cluster_identifier | The global cluster identifier specified on aws_rds_global_cluster |
string |
null |
no |
| iam_database_authentication_enabled | Specifies whether or mappings of AWS Identity and Access Management (IAM) accounts to database accounts is enabled | bool |
null |
no |
| iam_role_description | Description of the monitoring role | string |
null |
no |
| iam_role_force_detach_policies | Whether to force detaching any policies the monitoring role has before destroying it | bool |
null |
no |
| iam_role_managed_policy_arns | Set of exclusive IAM managed policy ARNs to attach to the monitoring role | list(string) |
null |
no |
| iam_role_max_session_duration | Maximum session duration (in seconds) that you want to set for the monitoring role | number |
null |
no |
| iam_role_path | Path for the monitoring role | string |
null |
no |
| iam_role_permissions_boundary | The ARN of the policy that is used to set the permissions boundary for the monitoring role | string |
null |
no |
| iam_roles | Map of IAM roles and supported feature names to associate with the cluster | map(map(string)) |
{} |
no |
| instance_class | Instance type to use at master instance. Note: if autoscaling_enabled is true, this will be the same instance class used on instances created by autoscaling |
string |
"" |
no |
| instance_timeouts | Create, update, and delete timeout configurations for the cluster instance(s) | map(string) |
{} |
no |
| instances | Map of cluster instances and any specific/overriding attributes to be created | any |
{} |
no |
| instances_use_identifier_prefix | Determines whether cluster instance identifiers are used as prefixes | bool |
false |
no |
| iops | The amount of Provisioned IOPS (input/output operations per second) to be initially allocated for each DB instance in the Multi-AZ DB cluster | number |
null |
no |
| ipv6_cidr_blocks | Enable to create egress rule | list(string) |
[ |
no |
| is_primary_cluster | Determines whether cluster is primary cluster with writer instance (set to false for global cluster and replica clusters) |
bool |
true |
no |
| kms_key_id | The ARN for the KMS encryption key. When specifying kms_key_id, storage_encrypted needs to be set to true |
string |
null |
no |
| label_order | Label order, e.g. name,application. |
list(any) |
[ |
no |
| manage_master_user_password | Set to true to allow RDS to manage the master user password in Secrets Manager. Cannot be set if master_password is provided |
bool |
true |
no |
| managedby | ManagedBy, eg 'CloudDrove'. | string |
"hello@clouddrove.com" |
no |
| master_user_secret_kms_key_id | The Amazon Web Services KMS key identifier is the key ARN, key ID, alias ARN, or alias name for the KMS key | string |
null |
no |
| master_username | Username for the master DB user. Required unless snapshot_identifier or replication_source_identifier is provided or unless a global_cluster_identifier is provided when the cluster is the secondary cluster of a global database |
string |
null |
no |
| monitoring_interval | The interval, in seconds, between points when Enhanced Monitoring metrics are collected for instances. Set to 0 to disable. Default is 0 |
number |
0 |
no |
| monitoring_role_arn | IAM role used by RDS to send enhanced monitoring metrics to CloudWatch | string |
"" |
no |
| monitoring_role_name | Name of the IAM role which will be created when create_monitoring_role is enabled. | string |
"rds-monitoring-role" |
no |
| mysql_iam_role_tags | Additional tags for the mysql iam role | map(any) |
{} |
no |
| name | Name (e.g. app or cluster). |
string |
n/a | yes |
| network_type | The type of network stack to use (IPV4 or DUAL) | string |
null |
no |
| performance_insights_enabled | Specifies whether Performance Insights is enabled or not | bool |
null |
no |
| performance_insights_kms_key_id | The ARN for the KMS key to encrypt Performance Insights data | string |
null |
no |
| performance_insights_retention_period | Amount of time in days to retain Performance Insights data. Either 7 (7 days) or 731 (2 years) | number |
null |
no |
| port | The port on which the DB accepts connections | string |
null |
no |
| predefined_metric_type | The metric type to scale on. Valid values are RDSReaderAverageCPUUtilization and RDSReaderAverageDatabaseConnections |
string |
"RDSReaderAverageCPUUtilization" |
no |
| preferred_backup_window | The daily time range during which automated backups are created if automated backups are enabled using the backup_retention_period parameter. Time in UTC |
string |
"02:00-03:00" |
no |
| preferred_maintenance_window | The weekly time range during which system maintenance can occur, in (UTC) | string |
"sun:05:00-sun:06:00" |
no |
| protocol | The protocol. If not icmp, tcp, udp, or all use the. | string |
"tcp" |
no |
| publicly_accessible | Determines whether instances are publicly accessible. Default false |
bool |
false |
no |
| replication_source_identifier | ARN of a source DB cluster or DB instance if this DB cluster is to be created as a Read Replica | string |
null |
no |
| repository | Terraform current module repo | string |
"https://github.com/clouddrove/terraform-aws-aurora" |
no |
| restore_to_point_in_time | Map of nested attributes for cloning Aurora cluster | map(string) |
{} |
no |
| s3_import | Configuration map used to restore from a Percona Xtrabackup in S3 (only MySQL is supported) | map(string) |
{} |
no |
| scaling_configuration | Map of nested attributes with scaling properties. Only valid when engine_mode is set to serverless |
map(string) |
{} |
no |
| security_group_name | The security group name. Default value is (var.name) |
string |
"" |
no |
| security_group_rules | Map of security group rules to add to the cluster security group created | any |
{} |
no |
| serverlessv2_scaling_configuration | Map of nested attributes with serverless v2 scaling properties. Only valid when engine_mode is set to provisioned |
map(string) |
{} |
no |
| sg_description | The security group description. | string |
"Instance default security group (only egress access is allowed)." |
no |
| sg_egress_description | Description of the egress and ingress rule | string |
"Description of the rule." |
no |
| sg_egress_ipv6_description | Description of the egress_ipv6 rule | string |
"Description of the rule." |
no |
| sg_ids | of the security group id. | list(any) |
[] |
no |
| sg_ingress_description | Description of the ingress rule | string |
"Description of the ingress rule use elasticache." |
no |
| skip_final_snapshot | Determines whether a final snapshot is created before the cluster is deleted. If true is specified, no snapshot is created | bool |
false |
no |
| snapshot_identifier | Specifies whether or not to create this cluster from a snapshot. You can use either the name or ARN when specifying a DB cluster snapshot, or the ARN when specifying a DB snapshot | string |
null |
no |
| source_region | The source region for an encrypted replica DB cluster | string |
null |
no |
| storage_encrypted | Specifies whether the DB cluster is encrypted. The default is true |
bool |
true |
no |
| storage_type | Specifies the storage type to be associated with the DB cluster. (This setting is required to create a Multi-AZ DB cluster). Valid values: io1, Default: io1 |
string |
null |
no |
| subnets | List of subnet IDs used by database subnet group created | list(string) |
[] |
no |
| tags | A map of tags to add to all resources | map(string) |
{} |
no |
| to_port | equal to 0. The supported values are defined in the IpProtocol argument on the IpPermission API reference | number |
65535 |
no |
| vpc_id | ID of the VPC where to create security group | string |
"" |
no |
| vpc_security_group_ids | List of VPC security groups to associate to the cluster in addition to the security group created | list(string) |
[] |
no |
| Name | Description |
|---|---|
| additional_cluster_endpoints | A map of additional cluster endpoints and their attributes |
| cluster_arn | Amazon Resource Name (ARN) of cluster |
| cluster_database_name | Name for an automatically created database on cluster creation |
| cluster_endpoint | Writer endpoint for the cluster |
| cluster_engine_version_actual | The running version of the cluster database |
| cluster_hosted_zone_id | The Route53 Hosted Zone ID of the endpoint |
| cluster_id | The RDS Cluster Identifier |
| cluster_instances | A map of cluster instances and their attributes |
| cluster_master_password | The database master password |
| cluster_master_user_secret | The generated database master user secret when manage_master_user_password is set to true |
| cluster_master_username | The database master username |
| cluster_members | List of RDS Instances that are a part of this cluster |
| cluster_port | The database port |
| cluster_reader_endpoint | A read-only endpoint for the cluster, automatically load-balanced across replicas |
| cluster_resource_id | The RDS Cluster Resource ID |
| cluster_role_associations | A map of IAM roles associated with the cluster and their attributes |
| db_cluster_cloudwatch_log_groups | Map of CloudWatch log groups created and their attributes |
| db_cluster_parameter_group_arn | The ARN of the DB cluster parameter group created |
| db_cluster_parameter_group_id | The ID of the DB cluster parameter group created |
| db_parameter_group_arn | The ARN of the DB parameter group created |
| db_parameter_group_id | The ID of the DB parameter group created |
| enhanced_monitoring_iam_role_arn | The Amazon Resource Name (ARN) specifying the enhanced monitoring role |
| enhanced_monitoring_iam_role_name | The name of the enhanced monitoring role |
| enhanced_monitoring_iam_role_unique_id | Stable and unique string identifying the enhanced monitoring role |
| security_group_id | The security group ID of the cluster |
In this module testing is performed with terratest and it creates a small piece of infrastructure, matches the output like ARN, ID and Tags name etc and destroy infrastructure in your AWS account. This testing is written in GO, so you need a GO environment in your system.
You need to run the following command in the testing folder:
go test -run TestIf you come accross a bug or have any feedback, please log it in our issue tracker, or feel free to drop us an email at hello@clouddrove.com.
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