diff --git a/src/README.md b/src/README.md new file mode 100644 index 0000000..a60eaa4 --- /dev/null +++ b/src/README.md @@ -0,0 +1,132 @@ +--- +tags: +--- + +# Component: `memorydb` + +This component provisions an AWS MemoryDB cluster. MemoryDB is a fully managed, Redis-compatible, in-memory database +service. + +While Redis is commonly used as a cache, MemoryDB is designed to also function well as a +[vector database](https://docs.aws.amazon.com/memorydb/latest/devguide/vector-search.html). This makes it appropriate +for AI model backends. + +## Usage + +**Stack Level**: Regional + +### Example + +Here's an example snippet for how to use this component: + +```yaml +components: + terraform: + vpc: + vars: + availability_zones: + - "a" + - "b" + - "c" + ipv4_primary_cidr_block: "10.111.0.0/18" + memorydb: + vars: {} +``` + + + +## Requirements + +| Name | Version | +|------|---------| +| [terraform](#requirement\_terraform) | >= 1.0.0 | +| [aws](#requirement\_aws) | >= 5.0 | + +## Providers + +No providers. + +## Modules + +| Name | Source | Version | +|------|--------|---------| +| [iam\_roles](#module\_iam\_roles) | ../account-map/modules/iam-roles | n/a | +| [memorydb](#module\_memorydb) | cloudposse/memorydb/aws | 0.1.0 | +| [this](#module\_this) | cloudposse/label/null | 0.25.0 | +| [vpc](#module\_vpc) | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 | + +## Resources + +No resources. + +## Inputs + +| Name | Description | Type | Default | Required | +|------|-------------|------|---------|:--------:| +| [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no | +| [admin\_username](#input\_admin\_username) | The username for the MemoryDB admin | `string` | `"admin"` | no | +| [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the `delimiter`
and treated as a single ID element. | `list(string)` | `[]` | no | +| [auto\_minor\_version\_upgrade](#input\_auto\_minor\_version\_upgrade) | Indicates that minor engine upgrades will be applied automatically to the cluster during the maintenance window | `bool` | `true` | no | +| [context](#input\_context) | Single object for setting entire context at once.
See description of individual variables for details.
Leave string and numeric variables as `null` to use default value.
Individual variable settings (non-null) override settings in context object,
except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | 
{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}
| no | +| [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no | +| [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
`{
format = string
labels = list(string)
}`
(Type is `any` so the map values can later be enhanced to provide additional options.)
`format` is a Terraform format string to be passed to the `format()` function.
`labels` is a list of labels, in order, to pass to `format()` function.
Label values will be normalized before being passed to `format()` so they will be
identical to how they appear in `id`.
Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no | +| [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no | +| [engine\_version](#input\_engine\_version) | The version of the Redis engine to use | `string` | `"6.2"` | no | +| [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no | +| [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).
Set to `0` for unlimited length.
Set to `null` for keep the existing setting, which defaults to `0`.
Does not affect `id_full`. | `number` | `null` | no | +| [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper`.
Default value: `title`. | `string` | `null` | no | +| [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no | +| [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper` and `none` (no transformation).
Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.
Default value: `lower`. | `string` | `null` | no | +| [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.
Default is to include all labels.
Tags with empty values will not be included in the `tags` output.
Set to `[]` to suppress all generated tags.
**Notes:**
The value of the `name` tag, if included, will be the `id`, not the `name`.
Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be
changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | 
[
  "default"
]
| no | +| [maintenance\_window](#input\_maintenance\_window) | The weekly time range during which system maintenance can occur | `string` | `null` | no | +| [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a `tag`.
The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no | +| [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no | +| [node\_type](#input\_node\_type) | The compute and memory capacity of the nodes in the cluster | `string` | `"db.r6g.large"` | no | +| [num\_replicas\_per\_shard](#input\_num\_replicas\_per\_shard) | The number of replicas per shard | `number` | `1` | no | +| [num\_shards](#input\_num\_shards) | The number of shards in the cluster | `number` | `1` | no | +| [parameter\_group\_family](#input\_parameter\_group\_family) | The name of the parameter group family | `string` | `"memorydb_redis6"` | no | +| [parameters](#input\_parameters) | Key-value mapping of parameters to apply to the parameter group | `map(string)` | `{}` | no | +| [port](#input\_port) | The port on which the cluster accepts connections | `number` | `6379` | no | +| [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no | +| [security\_group\_ids](#input\_security\_group\_ids) | List of security group IDs to associate with the MemoryDB cluster | `list(string)` | `[]` | no | +| [snapshot\_arns](#input\_snapshot\_arns) | List of ARNs for the snapshots to be restored. NOTE: destroys the existing cluster. Use for restoring. | `list(string)` | `[]` | no | +| [snapshot\_retention\_limit](#input\_snapshot\_retention\_limit) | The number of days for which MemoryDB retains automatic snapshots before deleting them | `number` | `null` | no | +| [snapshot\_window](#input\_snapshot\_window) | The daily time range during which MemoryDB begins taking daily snapshots | `string` | `null` | no | +| [sns\_topic\_arn](#input\_sns\_topic\_arn) | The ARN of the SNS topic to send notifications to | `string` | `null` | no | +| [ssm\_kms\_key\_id](#input\_ssm\_kms\_key\_id) | The KMS key ID to use for SSM parameter encryption. If not specified, the default key will be used. | `string` | `null` | no | +| [ssm\_parameter\_name](#input\_ssm\_parameter\_name) | The name of the SSM parameter to store the password in. If not specified, the password will be stored in `/{context.id}/admin_password` | `string` | `""` | no | +| [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no | +| [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).
Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no | +| [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no | +| [tls\_enabled](#input\_tls\_enabled) | Indicates whether Transport Layer Security (TLS) encryption is enabled for the cluster | `bool` | `true` | no | +| [vpc\_component\_name](#input\_vpc\_component\_name) | The name of the VPC component. This is used to pick out subnets for the MemoryDB cluster | `string` | `"vpc"` | no | + +## Outputs + +| Name | Description | +|------|-------------| +| [admin\_acl\_arn](#output\_admin\_acl\_arn) | The ARN of the MemoryDB user's ACL | +| [admin\_arn](#output\_admin\_arn) | The ARN of the MemoryDB user | +| [admin\_password\_ssm\_parameter\_name](#output\_admin\_password\_ssm\_parameter\_name) | The name of the SSM parameter storing the password for the MemoryDB user | +| [admin\_username](#output\_admin\_username) | The username for the MemoryDB user | +| [arn](#output\_arn) | The ARN of the MemoryDB cluster | +| [cluster\_endpoint](#output\_cluster\_endpoint) | The endpoint of the MemoryDB cluster | +| [engine\_patch\_version](#output\_engine\_patch\_version) | The Redis engine version | +| [id](#output\_id) | The name of the MemoryDB cluster | +| [parameter\_group\_arn](#output\_parameter\_group\_arn) | The ARN of the MemoryDB parameter group | +| [parameter\_group\_id](#output\_parameter\_group\_id) | The name of the MemoryDB parameter group | +| [shards](#output\_shards) | The shard details for the MemoryDB cluster | +| [subnet\_group\_arn](#output\_subnet\_group\_arn) | The ARN of the MemoryDB subnet group | +| [subnet\_group\_id](#output\_subnet\_group\_id) | The name of the MemoryDB subnet group | + + + +## References + +- [MemoryDB Documentation](https://docs.aws.amazon.com/memorydb/latest/devguide/what-is-memorydb.html) +- [Vector Searches with MemoryDB](https://docs.aws.amazon.com/memorydb/latest/devguide/vector-search.html) +- AWS CLI + [command to list MemoryDB engine versions](https://docs.aws.amazon.com/cli/latest/reference/memorydb/describe-engine-versions.html): + `aws memorydb describe-engine-versions`. + +[](https://cpco.io/homepage?utm_source=github&utm_medium=readme&utm_campaign=cloudposse-terraform-components/aws-memorydb&utm_content=)