feat: [CCIE-2375] ephemeral volume support

terraform/modules/happy-service-eks/README.md

@@ -65,6 +65,7 @@
 | <a name="input_deployment_stage"></a> [deployment\_stage](#input\_deployment\_stage) | The name of the deployment stage of the Application | `string` | `"dev"` | no |
 | <a name="input_desired_count"></a> [desired\_count](#input\_desired\_count) | How many instances of this task should we run across our cluster? | `number` | `2` | no |
 | <a name="input_eks_cluster"></a> [eks\_cluster](#input\_eks\_cluster) | eks-cluster module output | <pre>object({<br>    cluster_id : string,<br>    cluster_arn : string,<br>    cluster_endpoint : string,<br>    cluster_ca : string,<br>    cluster_oidc_issuer_url : string,<br>    cluster_version : string,<br>    worker_iam_role_name : string,<br>    worker_security_group : string,<br>    oidc_provider_arn : string,<br>  })</pre> | n/a | yes |
+| <a name="input_emptydir_volumes"></a> [emptydir\_volumes](#input\_emptydir\_volumes) | define any emptyDir volumes to make available to the pod | <pre>list(object({<br>    name : string,<br>    parameters : object({<br>      size_limit : optional(string, "500mi"),<br>    })<br>  }))</pre> | `[]` | no |
 | <a name="input_gpu"></a> [gpu](#input\_gpu) | Number of GPUs per pod, 0 allocates all available GPUs | `number` | `null` | no |
 | <a name="input_gpu_requests"></a> [gpu\_requests](#input\_gpu\_requests) | Number of GPUs requested per pod, 0 allocates all available GPUs | `number` | `null` | no |
 | <a name="input_health_check_path"></a> [health\_check\_path](#input\_health\_check\_path) | path to use for health checks | `string` | `"/"` | no |

terraform/modules/happy-service-eks/main.tf

@@ -302,6 +302,14 @@ resource "kubernetes_deployment_v1" "deployment" {
             }
           }
 
+          dynamic "volume_mount" {
+            for_each = toset(var.emptydir_volumes)
+            content {
+              mount_path = "/var/${volume_mount.value.name}"
+              name       = volume_mount.value.name
+            }
+          }
+
           liveness_probe {
             http_get {
               path   = var.health_check_path
@@ -381,7 +389,13 @@ resource "kubernetes_deployment_v1" "deployment" {
                 }
               }
             }
-
+            dynamic "volume_mount" {
+              for_each = toset(var.emptydir_volumes)
+              content {
+                mount_path = "/var/${volume_mount.value.name}"
+                name       = volume_mount.value.name
+              }
+            }
             dynamic "env" {
               for_each = var.additional_env_vars
               content {
@@ -458,7 +472,13 @@ resource "kubernetes_deployment_v1" "deployment" {
                 read_only  = true
               }
             }
-
+            dynamic "volume_mount" {
+              for_each = toset(var.emptydir_volumes)
+              content {
+                mount_path = "/var/${volume_mount.value.name}"
+                name       = volume_mount.value.name
+              }
+            }
             env {
               name  = "DEPLOYMENT_STAGE"
               value = var.deployment_stage
@@ -543,6 +563,16 @@ resource "kubernetes_deployment_v1" "deployment" {
             name = volume.value
           }
         }
+
+        dynamic "volume" {
+          for_each = toset(var.emptydir_volumes)
+          content {
+            empty_dir {
+              size_limit = volume.value.parameters.size_limit
+            }
+            name = volume.value.name
+          }
+        }
       }
     }
   }

terraform/modules/happy-service-eks/variables.tf

@@ -252,6 +252,17 @@ variable "additional_volumes_from_config_maps" {
   description = "Additional volumes to add to the container from the following config maps"
 }
 
+variable "emptydir_volumes" {
+  type = list(object({
+    name : string,
+    parameters : object({
+      size_limit : optional(string, "500mi"),
+    })
+  }))
+  default     = []
+  description = "define any emptyDir volumes to make available to the pod"
+}
+
 variable "progress_deadline_seconds" {
   type        = number
   description = "The maximum time in seconds for a deployment to make progress before it is considered to be failed. Defaults to 600 seconds."

terraform/modules/happy-stack-eks/README.md

@@ -55,6 +55,7 @@
 | <a name="input_app_name"></a> [app\_name](#input\_app\_name) | The happy application name | `string` | `""` | no |
 | <a name="input_create_dashboard"></a> [create\_dashboard](#input\_create\_dashboard) | Create a dashboard for this stack | `bool` | `false` | no |
 | <a name="input_deployment_stage"></a> [deployment\_stage](#input\_deployment\_stage) | Deployment stage for the app | `string` | n/a | yes |
+| <a name="input_emptydir_volumes"></a> [emptydir\_volumes](#input\_emptydir\_volumes) | define any emptyDir volumes to make available to the pod | <pre>list(object({<br>    name : string,<br>    parameters : object({<br>      size_limit : optional(string, "500mi"),<br>    })<br>  }))</pre> | `[]` | no |
 | <a name="input_enable_service_mesh"></a> [enable\_service\_mesh](#input\_enable\_service\_mesh) | Enable service mesh for this stack | `bool` | `false` | no |
 | <a name="input_image_tag"></a> [image\_tag](#input\_image\_tag) | Please provide a default image tag | `string` | n/a | yes |
 | <a name="input_image_tags"></a> [image\_tags](#input\_image\_tags) | Override image tag for each docker image | `map(string)` | `{}` | no |

terraform/modules/happy-stack-eks/main.tf

@@ -226,6 +226,8 @@ module "services" {
   additional_volumes_from_config_maps  = var.additional_volumes_from_config_maps
   additional_pod_labels                = var.additional_pod_labels
 
+  emptydir_volumes = var.emptydir_volumes
+
   tags = local.secret["tags"]
 
   regional_wafv2_arn = local.regional_waf_arn

terraform/modules/happy-stack-eks/variables.tf

@@ -260,6 +260,17 @@ variable "additional_env_vars_from_secrets" {
   description = "Additional environment variables to add to the container from the following secrets"
 }
 
+variable "emptydir_volumes" {
+  type = list(object({
+    name : string,
+    parameters : object({
+      size_limit : optional(string, "500mi"),
+    })
+  }))
+  default     = []
+  description = "define any emptyDir volumes to make available to the pod"
+}
+
 variable "additional_volumes_from_secrets" {
   type = object({
     items : optional(list(string), []),