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feat: Add instance store volume option for instances with local disk (#1213)

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Jason Witkowski
2021-05-27 15:46:38 -04:00
committed by GitHub
parent 9571a19028
commit 6aac9c4961
2 changed files with 60 additions and 45 deletions
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93
local.tf
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@@ -29,51 +29,54 @@ locals {
policy_arn_prefix = "arn:${data.aws_partition.current.partition}:iam::aws:policy" policy_arn_prefix = "arn:${data.aws_partition.current.partition}:iam::aws:policy"
workers_group_defaults_defaults = { workers_group_defaults_defaults = {
name = "count.index" # Name of the worker group. Literal count.index will never be used but if name is not set, the count.index interpolation will be used. name = "count.index" # Name of the worker group. Literal count.index will never be used but if name is not set, the count.index interpolation will be used.
tags = [] # A list of map defining extra tags to be applied to the worker group autoscaling group. tags = [] # A list of map defining extra tags to be applied to the worker group autoscaling group.
ami_id = "" # AMI ID for the eks linux based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform. ami_id = "" # AMI ID for the eks linux based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform.
ami_id_windows = "" # AMI ID for the eks windows based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform. ami_id_windows = "" # AMI ID for the eks windows based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform.
asg_desired_capacity = "1" # Desired worker capacity in the autoscaling group and changing its value will not affect the autoscaling group's desired capacity because the cluster-autoscaler manages up and down scaling of the nodes. Cluster-autoscaler add nodes when pods are in pending state and remove the nodes when they are not required by modifying the desirec_capacity of the autoscaling group. Although an issue exists in which if the value of the asg_min_size is changed it modifies the value of asg_desired_capacity. asg_desired_capacity = "1" # Desired worker capacity in the autoscaling group and changing its value will not affect the autoscaling group's desired capacity because the cluster-autoscaler manages up and down scaling of the nodes. Cluster-autoscaler add nodes when pods are in pending state and remove the nodes when they are not required by modifying the desirec_capacity of the autoscaling group. Although an issue exists in which if the value of the asg_min_size is changed it modifies the value of asg_desired_capacity.
asg_max_size = "3" # Maximum worker capacity in the autoscaling group. asg_max_size = "3" # Maximum worker capacity in the autoscaling group.
asg_min_size = "1" # Minimum worker capacity in the autoscaling group. NOTE: Change in this paramater will affect the asg_desired_capacity, like changing its value to 2 will change asg_desired_capacity value to 2 but bringing back it to 1 will not affect the asg_desired_capacity. asg_min_size = "1" # Minimum worker capacity in the autoscaling group. NOTE: Change in this paramater will affect the asg_desired_capacity, like changing its value to 2 will change asg_desired_capacity value to 2 but bringing back it to 1 will not affect the asg_desired_capacity.
asg_force_delete = false # Enable forced deletion for the autoscaling group. asg_force_delete = false # Enable forced deletion for the autoscaling group.
asg_initial_lifecycle_hooks = [] # Initial lifecycle hook for the autoscaling group. asg_initial_lifecycle_hooks = [] # Initital lifecycle hook for the autoscaling group.
default_cooldown = null # The amount of time, in seconds, after a scaling activity completes before another scaling activity can start. default_cooldown = null # The amount of time, in seconds, after a scaling activity completes before another scaling activity can start.
health_check_type = null # Controls how health checking is done. Valid values are "EC2" or "ELB". health_check_type = null # Controls how health checking is done. Valid values are "EC2" or "ELB".
health_check_grace_period = null # Time in seconds after instance comes into service before checking health. health_check_grace_period = null # Time in seconds after instance comes into service before checking health.
instance_type = "m4.large" # Size of the workers instances. instance_type = "m4.large" # Size of the workers instances.
spot_price = "" # Cost of spot instance. instance_store_virtual_name = "ephemeral0" # "virtual_name" of the instance store volume.
placement_tenancy = "" # The tenancy of the instance. Valid values are "default" or "dedicated". spot_price = "" # Cost of spot instance.
root_volume_size = "100" # root volume size of workers instances. placement_tenancy = "" # The tenancy of the instance. Valid values are "default" or "dedicated".
root_volume_type = "gp2" # root volume type of workers instances, can be 'standard', 'gp3' (for Launch Template), 'gp2', or 'io1' root_volume_size = "100" # root volume size of workers instances.
root_iops = "0" # The amount of provisioned IOPS. This must be set with a volume_type of "io1". root_volume_type = "gp3" # root volume type of workers instances, can be "standard", "gp3", "gp2", or "io1"
root_volume_throughput = null # The amount of throughput to provision for a gp3 volume. root_iops = "0" # The amount of provisioned IOPS. This must be set with a volume_type of "io1".
key_name = "" # The key pair name that should be used for the instances in the autoscaling group root_volume_throughput = null # The amount of throughput to provision for a gp3 volume.
pre_userdata = "" # userdata to pre-append to the default userdata. key_name = "" # The key pair name that should be used for the instances in the autoscaling group
userdata_template_file = "" # alternate template to use for userdata pre_userdata = "" # userdata to pre-append to the default userdata.
userdata_template_extra_args = {} # Additional arguments to use when expanding the userdata template file userdata_template_file = "" # alternate template to use for userdata
bootstrap_extra_args = "" # Extra arguments passed to the bootstrap.sh script from the EKS AMI (Amazon Machine Image). userdata_template_extra_args = {} # Additional arguments to use when expanding the userdata template file
additional_userdata = "" # userdata to append to the default userdata. bootstrap_extra_args = "" # Extra arguments passed to the bootstrap.sh script from the EKS AMI (Amazon Machine Image).
ebs_optimized = true # sets whether to use ebs optimization on supported types. additional_userdata = "" # userdata to append to the default userdata.
enable_monitoring = true # Enables/disables detailed monitoring. ebs_optimized = true # sets whether to use ebs optimization on supported types.
enclave_support = false # Enables/disables enclave support enable_monitoring = true # Enables/disables detailed monitoring.
public_ip = false # Associate a public ip address with a worker enclave_support = false # Enables/disables enclave support
kubelet_extra_args = "" # This string is passed directly to kubelet if set. Useful for adding labels or taints. public_ip = false # Associate a public ip address with a worker
subnets = var.subnets # A list of subnets to place the worker nodes in. i.e. ["subnet-123", "subnet-456", "subnet-789"] kubelet_extra_args = "" # This string is passed directly to kubelet if set. Useful for adding labels or taints.
additional_security_group_ids = [] # A list of additional security group ids to include in worker launch config subnets = var.subnets # A list of subnets to place the worker nodes in. i.e. ["subnet-123", "subnet-456", "subnet-789"]
protect_from_scale_in = false # Prevent AWS from scaling in, so that cluster-autoscaler is solely responsible. additional_security_group_ids = [] # A list of additional security group ids to include in worker launch config
iam_instance_profile_name = "" # A custom IAM instance profile name. Used when manage_worker_iam_resources is set to false. Incompatible with iam_role_id. protect_from_scale_in = false # Prevent AWS from scaling in, so that cluster-autoscaler is solely responsible.
iam_role_id = "local.default_iam_role_id" # A custom IAM role id. Incompatible with iam_instance_profile_name. Literal local.default_iam_role_id will never be used but if iam_role_id is not set, the local.default_iam_role_id interpolation will be used. iam_instance_profile_name = "" # A custom IAM instance profile name. Used when manage_worker_iam_resources is set to false. Incompatible with iam_role_id.
suspended_processes = ["AZRebalance"] # A list of processes to suspend. i.e. ["AZRebalance", "HealthCheck", "ReplaceUnhealthy"] iam_role_id = "local.default_iam_role_id" # A custom IAM role id. Incompatible with iam_instance_profile_name. Literal local.default_iam_role_id will never be used but if iam_role_id is not set, the local.default_iam_role_id interpolation will be used.
target_group_arns = null # A list of Application LoadBalancer (ALB) target group ARNs to be associated to the autoscaling group suspended_processes = ["AZRebalance"] # A list of processes to suspend. i.e. ["AZRebalance", "HealthCheck", "ReplaceUnhealthy"]
load_balancers = null # A list of Classic LoadBalancer (CLB)'s name to be associated to the autoscaling group target_group_arns = null # A list of Application LoadBalancer (ALB) target group ARNs to be associated to the autoscaling group
enabled_metrics = [] # A list of metrics to be collected i.e. ["GroupMinSize", "GroupMaxSize", "GroupDesiredCapacity"] load_balancers = null # A list of Classic LoadBalancer (CLB)'s name to be associated to the autoscaling group
placement_group = null # The name of the placement group into which to launch the instances, if any. enabled_metrics = [] # A list of metrics to be collected i.e. ["GroupMinSize", "GroupMaxSize", "GroupDesiredCapacity"]
service_linked_role_arn = "" # Arn of custom service linked role that Auto Scaling group will use. Useful when you have encrypted EBS placement_group = null # The name of the placement group into which to launch the instances, if any.
termination_policies = [] # A list of policies to decide how the instances in the auto scale group should be terminated. service_linked_role_arn = "" # Arn of custom service linked role that Auto Scaling group will use. Useful when you have encrypted EBS
platform = "linux" # Platform of workers. either "linux" or "windows" termination_policies = [] # A list of policies to decide how the instances in the auto scale group should be terminated.
additional_ebs_volumes = [] # A list of additional volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), volume_size, volume_type, iops, encrypted, kms_key_id (only on launch-template), delete_on_termination. Optional values are grabbed from root volume or from defaults platform = "linux" # Platform of workers. either "linux" or "windows"
warm_pool = null # If this block is configured, add a Warm Pool to the specified Auto Scaling group. additional_ebs_volumes = [] # A list of additional volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), volume_size, volume_type, iops, encrypted, kms_key_id (only on launch-template), delete_on_termination. Optional values are grabbed from root volume or from defaults
additional_instance_store_volumes = [] # A list of additional instance store (local disk) volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), virtual_name.
warm_pool = null # If this block is configured, add a Warm Pool to the specified Auto Scaling group.
# Settings for launch templates # Settings for launch templates
root_block_device_name = concat(data.aws_ami.eks_worker.*.root_device_name, [""])[0] # Root device name for workers. If non is provided, will assume default AMI was used. root_block_device_name = concat(data.aws_ami.eks_worker.*.root_device_name, [""])[0] # Root device name for workers. If non is provided, will assume default AMI was used.
root_kms_key_id = "" # The KMS key to use when encrypting the root storage device root_kms_key_id = "" # The KMS key to use when encrypting the root storage device

12
workers_launch_template.tf
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@@ -518,6 +518,18 @@ resource "aws_launch_template" "workers_launch_template" {
} }
dynamic "block_device_mappings" {
for_each = lookup(var.worker_groups_launch_template[count.index], "additional_instance_store_volumes", local.workers_group_defaults["additional_instance_store_volumes"])
content {
device_name = block_device_mappings.value.block_device_name
virtual_name = lookup(
block_device_mappings.value,
"virtual_name",
local.workers_group_defaults["instance_store_virtual_name"],
)
}
}
tag_specifications { tag_specifications {
resource_type = "volume" resource_type = "volume"