This module is the interface between Densify machine learning analytics and Terraform templates. It enables two operations:
- auto-tagging of cloud instances and containers based on Densify’s optimization analysis (making them “self-aware”)
- automated optimization of instance families/sizes, and container resource requests/limits (making them “self-optimizing”)
This integration is based on densify.auto.tfvars, which is automatically generated by Densify and contains operational intelligence, analysis findings, and optimization recommendations for each cloud instance or container in scope. This module unpacks data from this structure, making it available to Terraform as variables, enabling precise specification of resources to optimally match the learned patterns of behavior. The result is next-generation resource optimization with the elimination of hard-coded resource specifications.
- Densify account, which is provided with a Densify subscription or free trial (www.densify.com/service/signup)
module "optimization-as-code" {
source = "densify-dev/optimization-as-code/null"
densify_recommendations = "${var.densify_recommendations}"
densify_fallback = "${var.densify_fallback}"
densify_unique_id = "${var.name}"
}- AWS ASG
- AWS EC2
- AWS RDS
- Azure VM
- GCP Instance
- Kubernetes Pod
- Kubernetes Replication Controller
- Kubernetes Deployment
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| densify_recommendations | Map variable containing recommendations from Densify | Map | - | Yes |
| densify_fallback | The map default values used if Densify recommendations are not available | Map | - | Yes |
| densify_unique_id | The unique identifier of the system to be updated | String | - | Yes |
| Name | Description |
|---|---|
| current_type | Current instance size and family. |
| recommended_type | Densify recommended instance size and family. |
| savings_estimate | The potential monthly savings from modifying the current instance to the Densify recommended instance. |
| predicted_uptime | The predicted percentage of CPU utilization hours over the duration of a month. |
| implementation_method | The system configured to allow automated or manual recommendations. |
| current_cpu_request | The current CPU request configured for the Kubernetes container. |
| recommended_cpu_request | The recommended CPU request for the Kubernetes container. |
| current_cpu_limit | The current CPU limit configured for the Kubernetes container. |
| recommended_cpu_limit | The recommended CPU limit for the Kubernetes container. |
| current_mem_request | The current memory request configured for the Kubernetes container. |
| recommended_mem_request | The recommended memory request for the Kubernetes container. |
| current_mem_limit | The current memory limit configured for the Kubernetes container. |
| recommended_mem_limit | The recommended memory limit for the Kubernetes container. |
| instance_type | The instance size and family to be implemented, which is either the current size or the Densify recommendation, depending on the automation policy and the approval status (if approval is enabled). |
| cpu_request | The CPU request to be implemented, which is either the current CPU request or the Densify recommendation, depending on the automation policy and the approval status (if approval is enabled). |
| cpu_limit | The CPU limit to be implemented, which is either the current CPU limit or the Densify recommendation, depending on the automation policy and the approval status (if approval is enabled). |
| mem_request | The memory request to be implemented, which is either the current memory request or the Densify recommendation, depending on the automation policy and the approval status (if approval is enabled). |
| mem_limit | The memory limit to be implemented, which is either the current memory limit or the Densify recommendation, depending on the automation policy and the approval status (if approval is enabled). |
| min_group_current | The current minimum group size of the ASG. |
| min_group_recommended | The recommended minimum group size for the ASG. |
| max_group_current | The current maximum group size of the ASG. |
| max_group_recommended | The recommended maximum group size for the ASG. |
| min_group | The minimum group size to be implemented, which is either the current minimum group size or the Densify recommended minimum group size depending on the automation policy and approval status (if approval is enabled). |
| max_group | The maximum group size to be implemented, which is either the current maximum group size or the Densify recommended maximum group size depending on the automation policy and approval status (if approval is enabled). |
| avg_inst_count_current | The current average number of instances running in the ASG. |
| avg_inst_count_recommended | The predicted average number of instances running in the ASG if the recommendations are implemented. |
| current_desired_capacity | The current desired number of instances running in the ASG. |
| desired_capacity | The desired capacity to be implemented, which is either the current desired capacity or the recommended average instance count (rounded down) depending on the automation policy and approval status (if approval is enabled). |
| display_name | The display name of the container, which is a combination of the pod\service name and the container name. |
| cluster | The name of the cluster with the running container. |
| namespace | The namespace for the running container. |
| pod_service | The pod or service name that the container is running in. If the container is running in a single pod, then the pod name is displayed. If the container is part of a service, such as a Replication Controller or Replica Set, then the service name is displayed. |
| container | The name of the container. |
| controller_type | The type of the controller. |
| current_size | The current number of copies of the controller that are running. The value will be 1 for individual pods. |
| approval_type | The type of approval for this system (NA, All, Specific size). |
| recommendation_type | The type of recommendation (Upsize, Downsize, Resize, Just Right). |
| effort | The effort rating for implementing the recommendation. |
| policy | The policy is used by the analysis. |
| power_state | The power state of the instance. |
| defer_recommendation | Defer recommending an instance type change until reserved instance coverage for this instance expires. |
| defer_until | If deferRecommendation = yes, then the expiry date of the RI providing coverage for the current instance is returned. |
Apache 2 Licensed. See LICENSE for full details.