# AWS Observability Accelerator for Terraform

[![pre-commit](https://github.com/aws-observability/terraform-aws-observability-accelerator/actions/workflows/pre-commit.yaml/badge.svg)](https://github.com/aws-observability/terraform-aws-observability-accelerator/actions/workflows/pre-commit.yaml)

Welcome to the AWS Observability Accelerator for Terraform!

The AWS Observability accelerator for Terraform is a set of modules to help you
configure Observability for your Amazon EKS clusters with AWS Observability services.
This project proposes a core module to bootstrap your cluster with the AWS Distro for
OpenTelemetry (ADOT) Operator for EKS, Amazon Managed Service for Prometheus,
Amazon Managed Grafana. Additionally we have a set of workloads modules to
leverage curated ADOT collector configurations, Grafana dashboards,
Prometheus recording rules and alerts.

<img width="1501" alt="image" src="https://user-images.githubusercontent.com/10175027/193913383-94aaf4e2-58c6-4779-935b-e40528e86c03.png">

## Documentation

To explore the complete project documentation, please visit our [documentation site.](https://aws-observability.github.io/terraform-aws-observability-accelerator/)

## Getting started

To quickstart with a complete workflow and view Amazon EKS infrastructure dashboards,
visit the [Amazon EKS cluster monitoring documentation](https://aws-observability.github.io/terraform-aws-observability-accelerator/eks/)

## How it works

The sections below demonstrate how you can leverage AWS Observability Accelerator
to enable monitoring to an existing EKS cluster.

### v2.x changes

v2+ releases introduces couple of breaking changes compared to previous versions:

- `modules/workloads/infra` module moves to `modules/eks-monitoring`
- All EKS configuration options moves from the base  module to the `eks-monitoring` module
- All EKS workload modules `modules/workloads/{java,nginx}` merge into `eks-monitoring` as configuration options (patterns), see [examples](./examples) to provide a more complete visiblity
- All examples have been updated to reflect these changes

### Base Module

The base module allows you to configure the AWS Observability services for your cluster and
the AWS Distro for OpenTelemetry (ADOT) Operator as the signals collection mechanism.

This is the minimum configuration to have a new Amazon Managed Service for Prometheus Workspace
and ADOT Operator deployed for you and ready to receive your data.
The base module serve as an anchor to the workload modules and cannot run on its own.

```hcl
module "aws_observability_accelerator" {
  # use release tags and check for the latest versions
  # https://github.com/aws-observability/terraform-aws-observability-accelerator/releases
  source = "github.com/aws-observability/terraform-aws-observability-accelerator?ref=v1.6.1"

  aws_region     = "eu-west-1"
  eks_cluster_id = "my-eks-cluster"

  # As Grafana shares a different lifecycle, we recommend using an existing workspace.
  managed_grafana_workspace_id = var.managed_grafana_workspace_id
  grafana_api_key              = var.grafana_api_key
}
```

You can optionally reuse an existing Amazon Managed Servce for Prometheus Workspace:

```hcl
module "aws_observability_accelerator" {
  # use release tags and check for the latest versions
  # https://github.com/aws-observability/terraform-aws-observability-accelerator/releases
  source = "github.com/aws-observability/terraform-aws-observability-accelerator?ref=v1.6.1"

  aws_region     = "eu-west-1"
  eks_cluster_id = "my-eks-cluster"

  # prevents creation of a new Amazon Managed Prometheus workspace
  enable_managed_prometheus = false

  # reusing existing Amazon Managed Prometheus Workspace
  managed_prometheus_workspace_id  = "ws-abcd123..."

  managed_grafana_workspace_id = "g-abcdef123"
  grafana_api_key              = var.grafana_api_key
}
```

View all the configuration options in the module documentation below.

### Workload modules

[Workloads modules](./modules) are provided, which essentially provide curated
metrics collection, alerting rule and Grafana dashboards.

#### Infrastructure monitoring

```hcl
module "workloads_infra" {
  source = "aws-observability/terraform-aws-observability-accelerator/workloads/infra"

  eks_cluster_id = module.eks_observability_accelerator.eks_cluster_id

  dashboards_folder_id            = module.eks_observability_accelerator.grafana_dashboards_folder_id
  managed_prometheus_workspace_id = module.eks_observability_accelerator.managed_prometheus_workspace_id

  managed_prometheus_workspace_endpoint = module.eks_observability_accelerator.managed_prometheus_workspace_endpoint
  managed_prometheus_workspace_region   = module.eks_observability_accelerator.managed_prometheus_workspace_region
}
```

Grafana Dashboards

<img width="2056" alt="image" src="https://user-images.githubusercontent.com/10175027/199110753-9bc7a9b7-1b45-4598-89d3-32980154080e.png">


Check the the [complete example](./examples/existing-cluster-with-base-and-infra/)

## Motivation

Kubernetes is a powerful and extensible container orchestration technology that allows you to deploy and manage containerized applications at scale. The extensible nature of Kubernetes also allows you to use a wide range of popular open-source tools, commonly referred to as add-ons, in Kubernetes clusters. With such a large number of tools and design choices available, building a tailored EKS cluster that meets your application’s specific needs can take a significant amount of time. It involves integrating a wide range of open-source tools and AWS services and requires deep expertise in AWS and Kubernetes.

AWS customers have asked for examples that demonstrate how to integrate the landscape of Kubernetes tools and make it easy for them to provision complete, opinionated EKS clusters that meet specific application requirements. Customers can use AWS Observability Accelerator to configure and deploy purpose built EKS clusters, and start onboarding workloads in days, rather than months.

## Support & Feedback

AWS Observability Accelerator for Terraform is maintained by AWS Solution Architects. It is not part of an AWS service and support is provided best-effort by the AWS Observability Accelerator community.

To post feedback, submit feature ideas, or report bugs, please use the [Issues](https://github.com/aws-observability/terraform-aws-observability-accelerator/issues) section of this GitHub repo.

If you are interested in contributing, see the [Contribution guide](https://github.com/aws-observability/terraform-aws-observability-accelerator/blob/main/CONTRIBUTING.md).

---

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## Requirements

| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 4.0.0 |
| <a name="requirement_awscc"></a> [awscc](#requirement\_awscc) | >= 0.24.0 |
| <a name="requirement_grafana"></a> [grafana](#requirement\_grafana) | 1.25.0 |

## Providers

| Name | Version |
|------|---------|
| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 4.0.0 |
| <a name="provider_grafana"></a> [grafana](#provider\_grafana) | 1.25.0 |

## Modules

| Name | Source | Version |
|------|--------|---------|
| <a name="module_managed_grafana"></a> [managed\_grafana](#module\_managed\_grafana) | terraform-aws-modules/managed-service-grafana/aws | ~> 1.3 |

## Resources

| Name | Type |
|------|------|
| [aws_prometheus_alert_manager_definition.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/prometheus_alert_manager_definition) | resource |
| [aws_prometheus_workspace.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/prometheus_workspace) | resource |
| [grafana_data_source.amp](https://registry.terraform.io/providers/grafana/grafana/1.25.0/docs/resources/data_source) | resource |
| [grafana_folder.this](https://registry.terraform.io/providers/grafana/grafana/1.25.0/docs/resources/folder) | resource |
| [aws_grafana_workspace.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/grafana_workspace) | data source |
| [aws_region.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source |

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| <a name="input_aws_region"></a> [aws\_region](#input\_aws\_region) | AWS Region | `string` | n/a | yes |
| <a name="input_enable_alertmanager"></a> [enable\_alertmanager](#input\_enable\_alertmanager) | Creates Amazon Managed Service for Prometheus AlertManager for all workloads | `bool` | `false` | no |
| <a name="input_enable_managed_grafana"></a> [enable\_managed\_grafana](#input\_enable\_managed\_grafana) | Creates a new Amazon Managed Grafana Workspace | `bool` | `true` | no |
| <a name="input_enable_managed_prometheus"></a> [enable\_managed\_prometheus](#input\_enable\_managed\_prometheus) | Creates a new Amazon Managed Service for Prometheus Workspace | `bool` | `true` | no |
| <a name="input_grafana_api_key"></a> [grafana\_api\_key](#input\_grafana\_api\_key) | Grafana API key for the Amazon Managed Grafana workspace | `string` | n/a | yes |
| <a name="input_managed_grafana_workspace_id"></a> [managed\_grafana\_workspace\_id](#input\_managed\_grafana\_workspace\_id) | Amazon Managed Grafana Workspace ID | `string` | `""` | no |
| <a name="input_managed_prometheus_workspace_id"></a> [managed\_prometheus\_workspace\_id](#input\_managed\_prometheus\_workspace\_id) | Amazon Managed Service for Prometheus Workspace ID | `string` | `""` | no |
| <a name="input_managed_prometheus_workspace_region"></a> [managed\_prometheus\_workspace\_region](#input\_managed\_prometheus\_workspace\_region) | Region where Amazon Managed Service for Prometheus is deployed | `string` | `null` | no |
| <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `map('BusinessUnit`,`XYZ`) | `map(string)` | `{}` | no |

## Outputs

| Name | Description |
|------|-------------|
| <a name="output_aws_region"></a> [aws\_region](#output\_aws\_region) | AWS Region |
| <a name="output_grafana_dashboards_folder_id"></a> [grafana\_dashboards\_folder\_id](#output\_grafana\_dashboards\_folder\_id) | Grafana folder ID for automatic dashboards. Required by workload modules |
| <a name="output_grafana_prometheus_datasource_test"></a> [grafana\_prometheus\_datasource\_test](#output\_grafana\_prometheus\_datasource\_test) | Grafana save & test URL for Amazon Managed Prometheus workspace |
| <a name="output_managed_grafana_workspace_endpoint"></a> [managed\_grafana\_workspace\_endpoint](#output\_managed\_grafana\_workspace\_endpoint) | Amazon Managed Grafana workspace endpoint |
| <a name="output_managed_grafana_workspace_id"></a> [managed\_grafana\_workspace\_id](#output\_managed\_grafana\_workspace\_id) | Amazon Managed Grafana workspace ID |
| <a name="output_managed_prometheus_workspace_endpoint"></a> [managed\_prometheus\_workspace\_endpoint](#output\_managed\_prometheus\_workspace\_endpoint) | Amazon Managed Prometheus workspace endpoint |
| <a name="output_managed_prometheus_workspace_id"></a> [managed\_prometheus\_workspace\_id](#output\_managed\_prometheus\_workspace\_id) | Amazon Managed Prometheus workspace ID |
| <a name="output_managed_prometheus_workspace_region"></a> [managed\_prometheus\_workspace\_region](#output\_managed\_prometheus\_workspace\_region) | Amazon Managed Prometheus workspace region |
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## Contributing

See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more information.

## License

Apache-2.0 Licensed. See [LICENSE](https://github.com/aws-observability/terraform-aws-observability-accelerator/blob/main/LICENSE).