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Use Pre-existing Floating IP for Bastion (#8214)

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* use pre-existing floating IP for bastion

* document bastion_fips in readme
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Febrian Setianto 2021-11-19 17:58:52 +02:00 committed by GitHub
parent 83e0b786d4
commit f48ae18630
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6 changed files with 12 additions and 2 deletions
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1
contrib/terraform/openstack/README.md
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@ -251,6 +251,7 @@ For your cluster, edit `inventory/$CLUSTER/cluster.tfvars`.
|`dns_nameservers`| An array of DNS name server names to be used by hosts in the internal subnet. |
|`floatingip_pool` | Name of the pool from which floating IPs will be allocated |
|`k8s_master_fips` | A list of floating IPs that you have already pre-allocated; they will be attached to master nodes instead of creating new random floating IPs. |
|`bastion_fips` | A list of floating IPs that you have already pre-allocated; they will be attached to bastion node instead of creating new random floating IPs. |
|`external_net` | UUID of the external network that will be routed to |
|`flavor_k8s_master`,`flavor_k8s_node`,`flavor_etcd`, `flavor_bastion`,`flavor_gfs_node` | Flavor depends on your openstack installation, you can get available flavor IDs through `openstack flavor list` |
|`image`,`image_gfs` | Name of the image to use in provisioning the compute resources. Should already be loaded into glance. |

1
contrib/terraform/openstack/kubespray.tf
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@ -24,6 +24,7 @@ module "ips" {
router_id = module.network.router_id
k8s_nodes = var.k8s_nodes
k8s_master_fips = var.k8s_master_fips
bastion_fips = var.bastion_fips
router_internal_port_id = module.network.router_internal_port_id
}

2
contrib/terraform/openstack/modules/ips/main.tf
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@ -28,7 +28,7 @@ resource "openstack_networking_floatingip_v2" "k8s_node" {
}
resource "openstack_networking_floatingip_v2" "bastion" {
count = var.number_of_bastions
count = length(var.bastion_fips) > 0 ? 0 : var.number_of_bastions
pool = var.floatingip_pool
depends_on = [null_resource.dummy_dependency]
}

2
contrib/terraform/openstack/modules/ips/outputs.tf
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@ -17,5 +17,5 @@ output "k8s_nodes_fips" {
}
output "bastion_fips" {
value = openstack_networking_floatingip_v2.bastion[*].address
value = length(var.bastion_fips) > 0 ? var.bastion_fips : openstack_networking_floatingip_v2.bastion[*].address
}

2
contrib/terraform/openstack/modules/ips/variables.tf
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@ -20,4 +20,6 @@ variable "k8s_nodes" {}
variable "k8s_master_fips" {}
variable "bastion_fips" {}
variable "router_internal_port_id" {}

6
contrib/terraform/openstack/variables.tf
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@ -162,6 +162,12 @@ variable "k8s_master_fips" {
default = []
}
variable "bastion_fips" {
description = "specific pre-existing floating IPs to use for bastion node"
type = list(string)
default = []
}
variable "floatingip_pool" {
description = "name of the floating ip pool to use"
default = "external"