Release v2.0.0.

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.0] - 2020-07-15
+
+This release introduces some breaking changes, because the *default values* of some
+of the options have been changed with the introduction of configurable behavior.
+Make sure to tune all configurable variables to your needs prior to upgrading to
+this new module version.
+
+### Added
+
+- Lots of variables have been added to allow changing the behavior of the node
+  termination handler.
+
 ## [1.2.0] - 2020-07-15
 
 ### Added

README.md

@@ -13,6 +13,6 @@ snippet might be used.
 ```hcl
 module "aws_node_termination_handler" {
   source  = "iplabs/aws-node-termination-handler/kubernetes"
-  version = "1.2.0"
+  version = "2.0.0"
 }
 ```

main.tf

@@ -176,11 +176,11 @@ resource "kubernetes_daemonset" "this" {
           }
           env {
             name  = "DELETE_LOCAL_DATA"
-            value = "false"
+            value = var.delete_local_data
           }
           env {
             name  = "IGNORE_DAEMON_SETS"
-            value = "false"
+            value = var.ignore_daemon_sets
           }
           env {
             name  = "POD_TERMINATION_GRACE_PERIOD"
@@ -212,11 +212,27 @@ resource "kubernetes_daemonset" "this" {
           }
           env {
             name  = "ENABLE_SPOT_INTERRUPTION_DRAINING"
-            value = ""
+            value = var.enable_spot_interruption_draining
           }
           env {
-            name  = "ENABLE_SCHEDULED_DRAINING"
-            value = ""
+            name  = "ENABLE_SCHEDULED_EVENT_DRAINING"
+            value = var.enable_scheduled_event_draining
+          }
+          env {
+            name  = "METADATA_TRIES"
+            value = var.metadata_tries
+          }
+          env {
+            name  = "CORDON_ONLY"
+            value = var.cordon_only
+          }
+          env {
+            name  = "TAINT_NODE"
+            value = var.taint_node
+          }
+          env {
+            name  = "JSON_LOGGING"
+            value = var.json_logging
           }
           env {
             name  = "ENABLE_PROMETHEUS_SERVER"

variables.tf

@@ -4,6 +4,18 @@ variable "node_termination_handler_version" {
   default     = "1.6.1"
 }
 
+variable "ignore_daemon_sets" {
+  description = "If true, ignore daemon sets and drain other pods when a spot interrupt is received."
+  type        = bool
+  default     = true
+}
+
+variable "delete_local_data" {
+  description = "If true, do not drain pods that are using local node storage in emptyDir."
+  type        = bool
+  default     = true
+}
+
 variable "node_termination_grace_period" {
   description = "Period of time in seconds given to each NODE to terminate gracefully. Node draining will be scheduled based on this value to optimize the amount of compute time, but still safely drain the node before an event."
   type        = string
@@ -16,6 +28,42 @@ variable "pod_termination_grace_period" {
   default     = "-1"
 }
 
+variable "enable_scheduled_event_draining" {
+  description = "If true, drain nodes before the maintenance window starts for an EC2 instance scheduled event."
+  type        = bool
+  default     = false
+}
+
+variable "enable_spot_interruption_draining" {
+  description = "If true, drain nodes when the spot interruption termination notice is received."
+  type        = bool
+  default     = true
+}
+
+variable "metadata_tries" {
+  description = "The number of times to try requesting metadata. If you would like 2 retries, set metadata-tries to 3."
+  type        = number
+  default     = 3
+}
+
+variable "cordon_only" {
+  description = "If true, nodes will be cordoned but not drained when an interruption event occurs."
+  type        = bool
+  default     = false
+}
+
+variable "taint_node" {
+  description = "If true, nodes will be tainted when an interruption event occurs."
+  type        = bool
+  default     = false
+}
+
+variable "json_logging" {
+  description = "If true, use JSON-formatted logs instead of human readable logs."
+  type        = bool
+  default     = false
+}
+
 variable "enable_prometheus_server" {
   description = "Whether to enable a Prometheus endpoint that can be used to gather some metrics."
   type        = bool