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##############################################################################
# base-ocp-vpc-module
# Deploy Openshift cluster in IBM Cloud on VPC Gen 2
##############################################################################
# Segregate pools, as we need default pool for cluster creation
locals {
# ibm_container_vpc_cluster automatically names default pool "default" (See https://github.com/IBM-Cloud/terraform-provider-ibm/issues/2849)
default_pool = element([for pool in var.worker_pools : pool if pool.pool_name == "default"], 0)
# all_standalone_pools are the pools managed by a 'standalone' ibm_container_vpc_worker_pool resource
all_standalone_pools = var.import_default_worker_pool_on_create == true ? [for pool in var.worker_pools : pool if !var.ignore_worker_pool_size_changes] : [for pool in var.worker_pools : pool if pool.pool_name != "default" && !var.ignore_worker_pool_size_changes]
all_standalone_autoscaling_pools = var.import_default_worker_pool_on_create == true ? [for pool in var.worker_pools : pool if var.ignore_worker_pool_size_changes] : [for pool in var.worker_pools : pool if pool.pool_name != "default" && var.ignore_worker_pool_size_changes]
default_ocp_version = "${data.ibm_container_cluster_versions.cluster_versions.default_openshift_version}_openshift"
ocp_version = var.ocp_version == null || var.ocp_version == "default" ? local.default_ocp_version : "${var.ocp_version}_openshift"
cos_name = var.use_existing_cos == true || (var.use_existing_cos == false && var.cos_name != null) ? var.cos_name : "${var.cluster_name}_cos"
cos_location = "global"
cos_plan = "standard"
# if not enable_registry_storage then set cos to 'null', otherwise use existing or new CRN
cos_instance_crn = var.enable_registry_storage == true ? (var.use_existing_cos != false ? var.existing_cos_id : module.cos_instance[0].cos_instance_id) : null
# Validation approach based on https://stackoverflow.com/a/66682419
validate_condition = var.enable_registry_storage == true && var.use_existing_cos == true && var.existing_cos_id == null
validate_msg = "A value for 'existing_cos_id' variable must be passed when 'use_existing_cos = true'"
# tflint-ignore: terraform_unused_declarations
validate_check = regex("^${local.validate_msg}$", (!local.validate_condition ? local.validate_msg : ""))
delete_timeout = "2h"
create_timeout = "3h"
update_timeout = "3h"
cluster_id = var.ignore_worker_pool_size_changes ? ibm_container_vpc_cluster.autoscaling_cluster[0].id : ibm_container_vpc_cluster.cluster[0].id
# security group attached to worker pool
# the terraform provider / iks api take a security group id hardcoded to "cluster", so this pseudo-value is injected into the array based on attach_default_cluster_security_group
# see https://cloud.ibm.com/docs/openshift?topic=openshift-vpc-security-group&interface=ui#vpc-sg-cluster
# attach_ibm_managed_security_group is true and custom_security_group_ids is not set => default behavior, so set to null
# attach_ibm_managed_security_group is true and custom_security_group_ids is set => add "cluster" to the list of custom security group ids
# attach_ibm_managed_security_group is false and custom_security_group_ids is not set => default behavior, so set to null
# attach_ibm_managed_security_group is false and custom_security_group_ids is set => only use the custom security group ids
cluster_security_groups = var.attach_ibm_managed_security_group == true ? (var.custom_security_group_ids == null ? null : concat(["cluster"], var.custom_security_group_ids)) : (var.custom_security_group_ids == null ? null : var.custom_security_group_ids)
# for versions older than 4.15, this value must be null, or provider gives error
disable_outbound_traffic_protection = startswith(local.ocp_version, "4.12") || startswith(local.ocp_version, "4.13") || startswith(local.ocp_version, "4.14") ? null : var.disable_outbound_traffic_protection
}
# Separate local block to handle os validations
locals {
os_rhel = "REDHAT_8_64"
os_rhcos = "RHCOS"
# Strip OCP VERSION and use this ocp version in logic
ocp_version_num = regex("^([0-9]+\\.[0-9]+)", local.ocp_version)[0]
is_valid_version = local.ocp_version_num != null ? tonumber(local.ocp_version_num) >= 4.15 : false
rhcos_allowed_ocp_version = local.default_pool.operating_system == local.os_rhcos && local.is_valid_version
worker_pool_rhcos_entry = [for worker in var.worker_pools : (worker.operating_system == local.os_rhel || (worker.operating_system == local.os_rhcos && local.is_valid_version) ? true : false)]
# To verify rhcos operating system exists only for OCP versions >=4.15
# tflint-ignore: terraform_unused_declarations
cluster_rhcos_validation = local.default_pool.operating_system == local.os_rhel || local.rhcos_allowed_ocp_version ? true : tobool("RHCOS requires VPC clusters created from 4.15 onwards. Upgraded clusters from 4.14 cannot use RHCOS")
# tflint-ignore: terraform_unused_declarations
worker_pool_rhcos_validation = alltrue(local.worker_pool_rhcos_entry) ? true : tobool("RHCOS requires VPC clusters created from 4.15 onwards. Upgraded clusters from 4.14 cannot use RHCOS")
# Validate if default worker pool's operating system is RHEL, all pools' operating system must be RHEL
check_other_os = local.default_pool.operating_system == local.os_rhcos
rhel_check_for_all_standalone_pools = [for pool in var.worker_pools : pool.operating_system == local.os_rhel if pool.pool_name != "default"]
# tflint-ignore: terraform_unused_declarations
valid_rhel_worker_pools = local.check_other_os || (local.default_pool.operating_system == local.os_rhel && alltrue(local.rhel_check_for_all_standalone_pools)) == true ? true : tobool("Choosing RHEL for the default worker pool will limit all additional worker pools to RHEL.")
# Validate if RHCOS is used as operating system for the cluster then the default worker pool must be created with RHCOS
rhcos_check = local.default_pool.operating_system == local.os_rhel || (local.default_pool.operating_system == local.os_rhcos && local.default_pool.operating_system == local.os_rhcos)
# tflint-ignore: terraform_unused_declarations
default_wp_validation = local.rhcos_check == true ? true : tobool("If RHCOS is used with this cluster, the default worker pool should be created with RHCOS.")
}
# Lookup the current default kube version
data "ibm_container_cluster_versions" "cluster_versions" {
resource_group_id = var.resource_group_id
}
module "cos_instance" {
count = var.enable_registry_storage && !var.use_existing_cos ? 1 : 0
source = "terraform-ibm-modules/cos/ibm"
version = "8.15.10"
cos_instance_name = local.cos_name
resource_group_id = var.resource_group_id
cos_plan = local.cos_plan
cos_location = local.cos_location
kms_encryption_enabled = false
create_cos_bucket = false
}
moved {
from = ibm_resource_instance.cos_instance[0]
to = module.cos_instance[0].ibm_resource_instance.cos_instance[0]
}
resource "ibm_resource_tag" "cos_access_tag" {
count = var.enable_registry_storage && !var.use_existing_cos && length(var.access_tags) > 0 ? 1 : 0
resource_id = module.cos_instance[0].cos_instance_id
tags = var.access_tags
tag_type = "access"
}
##############################################################################
# Create a OCP Cluster
##############################################################################
resource "ibm_container_vpc_cluster" "cluster" {
depends_on = [null_resource.reset_api_key]
count = var.ignore_worker_pool_size_changes ? 0 : 1
name = var.cluster_name
vpc_id = var.vpc_id
tags = var.tags
kube_version = local.ocp_version
flavor = local.default_pool.machine_type
entitlement = var.ocp_entitlement
cos_instance_crn = local.cos_instance_crn
worker_count = local.default_pool.workers_per_zone
resource_group_id = var.resource_group_id
wait_till = var.cluster_ready_when
force_delete_storage = var.force_delete_storage
secondary_storage = local.default_pool.secondary_storage
pod_subnet = var.pod_subnet_cidr
service_subnet = var.service_subnet_cidr
operating_system = local.default_pool.operating_system
disable_public_service_endpoint = var.disable_public_endpoint
worker_labels = local.default_pool.labels
disable_outbound_traffic_protection = local.disable_outbound_traffic_protection
crk = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.crk
kms_instance_id = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.kms_instance_id
kms_account_id = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.kms_account_id
security_groups = local.cluster_security_groups
lifecycle {
ignore_changes = [kube_version]
}
# default workers are mapped to the subnets that are "private"
dynamic "zones" {
for_each = local.default_pool.subnet_prefix != null ? var.vpc_subnets[local.default_pool.subnet_prefix] : local.default_pool.vpc_subnets
content {
subnet_id = zones.value.id
name = zones.value.zone
}
}
# Apply taints to the default worker pools i.e private
dynamic "taints" {
for_each = var.worker_pools_taints == null ? [] : concat(var.worker_pools_taints["all"], var.worker_pools_taints["default"])
content {
effect = taints.value.effect
key = taints.value.key
value = taints.value.value
}
}
dynamic "kms_config" {
for_each = var.kms_config != null ? [1] : []
content {
crk_id = var.kms_config.crk_id
instance_id = var.kms_config.instance_id
private_endpoint = var.kms_config.private_endpoint == null ? true : var.kms_config.private_endpoint
account_id = var.kms_config.account_id
}
}
timeouts {
# Extend create, update and delete timeout to static values.
delete = local.delete_timeout
create = local.create_timeout
update = local.update_timeout
}
}
# copy of the cluster resource above which ignores changes to the worker pool for use in autoscaling scenarios
resource "ibm_container_vpc_cluster" "autoscaling_cluster" {
depends_on = [null_resource.reset_api_key]
count = var.ignore_worker_pool_size_changes ? 1 : 0
name = var.cluster_name
vpc_id = var.vpc_id
tags = var.tags
kube_version = local.ocp_version
flavor = local.default_pool.machine_type
entitlement = var.ocp_entitlement
cos_instance_crn = local.cos_instance_crn
worker_count = local.default_pool.workers_per_zone
resource_group_id = var.resource_group_id
wait_till = var.cluster_ready_when
force_delete_storage = var.force_delete_storage
operating_system = local.default_pool.operating_system
secondary_storage = local.default_pool.secondary_storage
pod_subnet = var.pod_subnet_cidr
service_subnet = var.service_subnet_cidr
disable_public_service_endpoint = var.disable_public_endpoint
worker_labels = local.default_pool.labels
disable_outbound_traffic_protection = local.disable_outbound_traffic_protection
crk = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.crk
kms_instance_id = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.kms_instance_id
kms_account_id = local.default_pool.boot_volume_encryption_kms_config == null ? null : local.default_pool.boot_volume_encryption_kms_config.kms_account_id
security_groups = local.cluster_security_groups
lifecycle {
ignore_changes = [worker_count, kube_version]
}
# default workers are mapped to the subnets that are "private"
dynamic "zones" {
for_each = local.default_pool.subnet_prefix != null ? var.vpc_subnets[local.default_pool.subnet_prefix] : local.default_pool.vpc_subnets
content {
subnet_id = zones.value.id
name = zones.value.zone
}
}
# Apply taints to the default worker pools i.e private
dynamic "taints" {
for_each = var.worker_pools_taints == null ? [] : concat(var.worker_pools_taints["all"], var.worker_pools_taints["default"])
content {
effect = taints.value.effect
key = taints.value.key
value = taints.value.value
}
}
dynamic "kms_config" {
for_each = var.kms_config != null ? [1] : []
content {
crk_id = var.kms_config.crk_id
instance_id = var.kms_config.instance_id
private_endpoint = var.kms_config.private_endpoint
account_id = var.kms_config.account_id
}
}
timeouts {
# Extend create, update and delete timeout to static values.
delete = local.delete_timeout
create = local.create_timeout
update = local.update_timeout
}
}
##############################################################################
# Cluster Access Tag
##############################################################################
resource "ibm_resource_tag" "cluster_access_tag" {
count = length(var.access_tags) == 0 ? 0 : 1
resource_id = var.ignore_worker_pool_size_changes ? ibm_container_vpc_cluster.autoscaling_cluster[0].crn : ibm_container_vpc_cluster.cluster[0].crn
tags = var.access_tags
tag_type = "access"
}
# Cluster provisioning will automatically create an IAM API key called "containers-kubernetes-key" if one does not exist
# for the given region and resource group. The API key is used to access several services, such as the IBM Cloud classic
# infrastructure portfolio, and is required to manage the cluster. Immediately after the IAM API key is created and
# added to the new resource group, it is replicated across IAM Cloudant instances. There is a small period of time from
# when the IAM API key is initially created and when it is fully replicated across Cloudant instances where the API key
# does not work because it is not fully replicated, so commands that require the API key may fail with 404.
#
# WORKAROUND:
# Run a script that checks if an IAM API key already exists for the given region and resource group, and if it does not,
# run the ibmcloud ks api-key reset command to create one. The script will then pause for some time to allow any IAM
# Cloudant replication to occur. By doing this, it means the cluster provisioning process will not attempt to create a
# new key, and simply use the key created by this script. So hence should not face 404s anymore.
# The IKS team are tracking internally https://github.ibm.com/alchemy-containers/armada-ironsides/issues/5023
data "ibm_iam_auth_token" "reset_api_key_tokendata" {
}
data "ibm_iam_account_settings" "iam_account_settings" {
}
resource "null_resource" "reset_api_key" {
provisioner "local-exec" {
command = "${path.module}/scripts/reset_iks_api_key.sh ${var.region} ${var.resource_group_id} ${var.use_private_endpoint} ${var.ocp_version == "4.13" && var.disable_public_endpoint ? "vpe" : var.cluster_config_endpoint_type}" # private only cluster on 4.13 will use VPE endpoint.
interpreter = ["/bin/bash", "-c"]
environment = {
IAM_TOKEN = data.ibm_iam_auth_token.reset_api_key_tokendata.iam_access_token
ACCOUNT_ID = data.ibm_iam_account_settings.iam_account_settings.account_id
}
}
}
##############################################################################
# Access cluster to kick off RBAC synchronisation
##############################################################################
data "ibm_container_cluster_config" "cluster_config" {
count = var.verify_worker_network_readiness || lookup(var.addons, "cluster-autoscaler", null) != null ? 1 : 0
cluster_name_id = local.cluster_id
config_dir = "${path.module}/kubeconfig"
admin = true # workaround for https://github.com/terraform-ibm-modules/terraform-ibm-base-ocp-vpc/issues/374
resource_group_id = var.resource_group_id
endpoint_type = var.cluster_config_endpoint_type != "default" ? var.cluster_config_endpoint_type : null # null value represents default
}
##############################################################################
# Worker Pools
##############################################################################
locals {
additional_pool_names = var.ignore_worker_pool_size_changes ? [for pool in local.all_standalone_autoscaling_pools : pool.pool_name] : [for pool in local.all_standalone_pools : pool.pool_name]
pool_names = toset(flatten([["default"], local.additional_pool_names]))
}
data "ibm_container_vpc_worker_pool" "all_pools" {
depends_on = [ibm_container_vpc_worker_pool.autoscaling_pool, ibm_container_vpc_worker_pool.pool]
for_each = local.pool_names
cluster = local.cluster_id
worker_pool_name = each.value
}
resource "ibm_container_vpc_worker_pool" "pool" {
for_each = { for pool in local.all_standalone_pools : pool.pool_name => pool }
vpc_id = var.vpc_id
resource_group_id = var.resource_group_id
cluster = local.cluster_id
worker_pool_name = each.value.pool_name
flavor = each.value.machine_type
operating_system = each.value.operating_system
worker_count = each.value.workers_per_zone
secondary_storage = each.value.secondary_storage
entitlement = var.ocp_entitlement
labels = each.value.labels
crk = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.crk
kms_instance_id = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.kms_instance_id
kms_account_id = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.kms_account_id
security_groups = each.value.additional_security_group_ids
dynamic "zones" {
for_each = each.value.subnet_prefix != null ? var.vpc_subnets[each.value.subnet_prefix] : each.value.vpc_subnets
content {
subnet_id = zones.value.id
name = zones.value.zone
}
}
# Apply taints to worker pools i.e. all_standalone_pools
dynamic "taints" {
for_each = var.worker_pools_taints == null ? [] : concat(var.worker_pools_taints["all"], lookup(var.worker_pools_taints, each.value["pool_name"], []))
content {
effect = taints.value.effect
key = taints.value.key
value = taints.value.value
}
}
timeouts {
# Extend create and delete timeout to 2h
delete = "2h"
create = "2h"
}
# The default workerpool has to be imported as it will already exist on cluster create
import_on_create = each.value.pool_name == "default" ? var.allow_default_worker_pool_replacement ? false : true : null
}
# copy of the pool resource above which ignores changes to the worker pool for use in autoscaling scenarios
resource "ibm_container_vpc_worker_pool" "autoscaling_pool" {
for_each = { for pool in local.all_standalone_autoscaling_pools : pool.pool_name => pool }
vpc_id = var.vpc_id
resource_group_id = var.resource_group_id
cluster = local.cluster_id
worker_pool_name = each.value.pool_name
flavor = each.value.machine_type
operating_system = each.value.operating_system
worker_count = each.value.workers_per_zone
secondary_storage = each.value.secondary_storage
entitlement = var.ocp_entitlement
labels = each.value.labels
crk = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.crk
kms_instance_id = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.kms_instance_id
kms_account_id = each.value.boot_volume_encryption_kms_config == null ? null : each.value.boot_volume_encryption_kms_config.kms_account_id
security_groups = each.value.additional_security_group_ids
lifecycle {
ignore_changes = [worker_count]
}
dynamic "zones" {
for_each = each.value.subnet_prefix != null ? var.vpc_subnets[each.value.subnet_prefix] : each.value.vpc_subnets
content {
subnet_id = zones.value.id
name = zones.value.zone
}
}
# Apply taints to worker pools i.e. all_standalone_pools
dynamic "taints" {
for_each = var.worker_pools_taints == null ? [] : concat(var.worker_pools_taints["all"], lookup(var.worker_pools_taints, each.value["pool_name"], []))
content {
effect = taints.value.effect
key = taints.value.key
value = taints.value.value
}
}
# The default workerpool has to be imported as it will already exist on cluster create
import_on_create = each.value.pool_name == "default" ? var.allow_default_worker_pool_replacement ? false : true : null
}
##############################################################################
# Confirm network healthy by ensuring master can communicate with all workers.
#
# Please note:
# The network health check is applicable only if the cluster is accessible.
#
# To do this, we run a script to execute "kubectl logs" against each calico
# daemonset pod (as there will be one pod per node) and ensure it passes.
#
# Why?
# There can be a delay in getting the routes set up for the VPN that lets
# the master connect across accounts down to the workers, and that VPN
# connection is what is used by "kubectl logs".
#
# Why is there a delay?
# The network microservice has to trigger on new workers being created and
# push down an updated vpn config, and then the vpn server and client need
# to pick up this updated config. Depending on how busy the network
# microservice is handling requests, there might be a delay.
##############################################################################
resource "null_resource" "confirm_network_healthy" {
count = var.verify_worker_network_readiness ? 1 : 0
# Worker pool creation can start before the 'ibm_container_vpc_cluster' completes since there is no explicit
# depends_on in 'ibm_container_vpc_worker_pool', just an implicit depends_on on the cluster ID. Cluster ID can exist before
# 'ibm_container_vpc_cluster' completes, so hence need to add explicit depends on against 'ibm_container_vpc_cluster' here.
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_cluster.autoscaling_cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool]
provisioner "local-exec" {
command = "${path.module}/scripts/confirm_network_healthy.sh"
interpreter = ["/bin/bash", "-c"]
environment = {
KUBECONFIG = data.ibm_container_cluster_config.cluster_config[0].config_file_path
}
}
}
##############################################################################
# Addons
##############################################################################
# Lookup the current default csi-driver version
data "ibm_container_addons" "existing_addons" {
cluster = local.cluster_id
}
locals {
# for each cluster, look for installed csi driver to get version. If array is empty (no csi driver) then null is returned
csi_driver_version = [
for addon in data.ibm_container_addons.existing_addons.addons :
addon.version if addon.name == "vpc-block-csi-driver"
]
# get the addons and their versions and create an addons map including the corresponding csi_driver_version
addons = merge(
{ for addon_name, addon_version in(var.addons != null ? var.addons : {}) : addon_name => addon_version if addon_version != null },
length(local.csi_driver_version) > 0 ? { vpc-block-csi-driver = local.csi_driver_version[0] } : {}
)
}
resource "ibm_container_addons" "addons" {
# Worker pool creation can start before the 'ibm_container_vpc_cluster' completes since there is no explicit
# depends_on in 'ibm_container_vpc_worker_pool', just an implicit depends_on on the cluster ID. Cluster ID can exist before
# 'ibm_container_vpc_cluster' completes, so hence need to add explicit depends on against 'ibm_container_vpc_cluster' here.
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_cluster.autoscaling_cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool, null_resource.confirm_network_healthy]
cluster = local.cluster_id
resource_group_id = var.resource_group_id
# setting to false means we do not want Terraform to manage addons that are managed elsewhere
manage_all_addons = var.manage_all_addons
dynamic "addons" {
for_each = local.addons
content {
name = addons.key
version = addons.value
}
}
timeouts {
create = "1h"
}
}
locals {
worker_pool_config = [
for worker in var.worker_pools :
{
name = worker.pool_name
minSize = worker.minSize
maxSize = worker.maxSize
enabled = worker.enableAutoscaling
} if worker.enableAutoscaling != null && worker.minSize != null && worker.maxSize != null
]
}
resource "null_resource" "config_map_status" {
count = lookup(var.addons, "cluster-autoscaler", null) != null ? 1 : 0
depends_on = [ibm_container_addons.addons]
provisioner "local-exec" {
command = "${path.module}/scripts/get_config_map_status.sh"
interpreter = ["/bin/bash", "-c"]
environment = {
KUBECONFIG = data.ibm_container_cluster_config.cluster_config[0].config_file_path
}
}
}
resource "kubernetes_config_map_v1_data" "set_autoscaling" {
count = lookup(var.addons, "cluster-autoscaler", null) != null ? 1 : 0
depends_on = [null_resource.config_map_status]
metadata {
name = "iks-ca-configmap"
namespace = "kube-system"
}
data = {
"workerPoolsConfig.json" = jsonencode(local.worker_pool_config)
}
force = true
}
##############################################################################
# Attach additional security groups to the load balancers managed by this
# cluster. Note that the module attaches security group to existing loadbalancer
# only. Re-run the module to attach security groups to new load balancers created
# after the initial run of this module. The module detects new load balancers.
# https://cloud.ibm.com/docs/openshift?topic=openshift-vpc-security-group&interface=ui#vpc-sg-vpe-alb
##############################################################################
data "ibm_is_lbs" "all_lbs" {
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool, null_resource.confirm_network_healthy]
count = length(var.additional_lb_security_group_ids) > 0 ? 1 : 0
}
locals {
lbs_associated_with_cluster = length(var.additional_lb_security_group_ids) > 0 ? [for lb in data.ibm_is_lbs.all_lbs[0].load_balancers : lb.id if strcontains(lb.name, local.cluster_id)] : []
}
data "ibm_iam_auth_token" "tokendata" {
depends_on = [data.ibm_is_lbs.all_lbs]
}
resource "null_resource" "confirm_lb_active" {
count = length(var.additional_lb_security_group_ids)
depends_on = [data.ibm_iam_auth_token.tokendata]
provisioner "local-exec" {
command = "${path.module}/scripts/confirm_lb_active.sh ${var.region} ${local.lbs_associated_with_cluster[count.index]} ${var.use_private_endpoint}"
interpreter = ["/bin/bash", "-c"]
environment = {
IAM_TOKEN = data.ibm_iam_auth_token.tokendata.iam_access_token
}
}
}
module "attach_sg_to_lb" {
depends_on = [null_resource.confirm_lb_active]
count = length(var.additional_lb_security_group_ids)
source = "terraform-ibm-modules/security-group/ibm"
version = "2.6.2"
existing_security_group_id = var.additional_lb_security_group_ids[count.index]
use_existing_security_group_id = true
target_ids = [for index in range(var.number_of_lbs) : local.lbs_associated_with_cluster[index]] # number_of_lbs is necessary to give a static number of elements to tf to accomplish the apply when the cluster does not initially exists
}
##############################################################################
# Attach additional security groups to the load balancers managed by this
# cluster. Note that the module attaches security group to existing loadbalancer
# only. Re-run the module to attach security groups to new load balancers created
# after the initial run of this module. The module detects new load balancers.
# https://cloud.ibm.com/docs/openshift?topic=openshift-vpc-security-group&interface=ui#vpc-sg-vpe-alb
##############################################################################
locals {
vpes_to_attach_to_sg = {
"master" : "iks-${local.cluster_id}",
"api" : "iks-api-${var.vpc_id}",
"registry" : "iks-registry-${var.vpc_id}"
}
}
data "ibm_is_virtual_endpoint_gateway" "master_vpe" {
count = length(var.additional_vpe_security_group_ids["master"])
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool, null_resource.confirm_network_healthy]
name = local.vpes_to_attach_to_sg["master"]
}
data "ibm_is_virtual_endpoint_gateway" "api_vpe" {
count = length(var.additional_vpe_security_group_ids["api"])
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool, null_resource.confirm_network_healthy]
name = local.vpes_to_attach_to_sg["api"]
}
data "ibm_is_virtual_endpoint_gateway" "registry_vpe" {
count = length(var.additional_vpe_security_group_ids["registry"])
depends_on = [ibm_container_vpc_cluster.cluster, ibm_container_vpc_worker_pool.pool, ibm_container_vpc_worker_pool.autoscaling_pool, null_resource.confirm_network_healthy]
name = local.vpes_to_attach_to_sg["registry"]
}
locals {
# loading cluster master, cluster API and registry VPE IDs to attach related SGs
master_vpe_id = length(var.additional_vpe_security_group_ids["master"]) > 0 ? data.ibm_is_virtual_endpoint_gateway.master_vpe[0].id : null
api_vpe_id = length(var.additional_vpe_security_group_ids["api"]) > 0 ? data.ibm_is_virtual_endpoint_gateway.api_vpe[0].id : null
registry_vpe_id = length(var.additional_vpe_security_group_ids["registry"]) > 0 ? data.ibm_is_virtual_endpoint_gateway.registry_vpe[0].id : null
}
module "attach_sg_to_master_vpe" {
count = length(var.additional_vpe_security_group_ids["master"])
source = "terraform-ibm-modules/security-group/ibm"
version = "2.6.2"
existing_security_group_id = var.additional_vpe_security_group_ids["master"][count.index]
use_existing_security_group_id = true
target_ids = [local.master_vpe_id]
}
module "attach_sg_to_api_vpe" {
count = length(var.additional_vpe_security_group_ids["api"])
source = "terraform-ibm-modules/security-group/ibm"
version = "2.6.2"
existing_security_group_id = var.additional_vpe_security_group_ids["api"][count.index]
use_existing_security_group_id = true
target_ids = [local.api_vpe_id]
}
module "attach_sg_to_registry_vpe" {
count = length(var.additional_vpe_security_group_ids["registry"])
source = "terraform-ibm-modules/security-group/ibm"
version = "2.6.2"
existing_security_group_id = var.additional_vpe_security_group_ids["registry"][count.index]
use_existing_security_group_id = true
target_ids = [local.registry_vpe_id]
}
##############################################################################
# Context Based Restrictions
##############################################################################
locals {
default_operations = [{
api_types = [
{
"api_type_id" : "crn:v1:bluemix:public:context-based-restrictions::::api-type:"
}
]
}]
}
module "cbr_rule" {
count = length(var.cbr_rules) > 0 ? length(var.cbr_rules) : 0
source = "terraform-ibm-modules/cbr/ibm//modules/cbr-rule-module"
version = "1.29.0"
rule_description = var.cbr_rules[count.index].description
enforcement_mode = var.cbr_rules[count.index].enforcement_mode
rule_contexts = var.cbr_rules[count.index].rule_contexts
resources = [{
attributes = [
{
name = "accountId"
value = var.cbr_rules[count.index].account_id
operator = "stringEquals"
},
{
name = "serviceInstance"
value = var.ignore_worker_pool_size_changes ? ibm_container_vpc_cluster.autoscaling_cluster[0].id : ibm_container_vpc_cluster.cluster[0].id
operator = "stringEquals"
},
{
name = "serviceName"
value = "containers-kubernetes"
operator = "stringEquals"
}
],
}]
operations = var.cbr_rules[count.index].operations == null ? local.default_operations : var.cbr_rules[count.index].operations
}