matrixtest-IaC/kube.tf

resource "openstack_networking_port_v2" "kubeport" {
  name                = "kube${count.index + 1}-matrix-test-sunet-se-port"
  # We create as many ports as there are instances created
  count               =  var.kubesize # size of cluster
  network_id          = data.openstack_networking_network_v2.public.id
  # A list of security group ID
  security_group_ids  = [ 
                          data.openstack_networking_secgroup_v2.sshfromjumphosts.id, 
                          data.openstack_networking_secgroup_v2.allegress.id,
                          resource.openstack_networking_secgroup_v2.kubenode.id
                        ]
  admin_state_up      = "true"
}

resource "openstack_blockstorage_volume_v3" "kubevolumeboot" {
  count                = var.kubesize # size of cluster
  name                 = "kube${count.index + 1}-matrix-test-sunet-se-vol"
  description          = "OS volume for kubernetes node ${count.index + 1}"
  size                 = 30
  image_id             = data.openstack_images_image_v2.debian12image.id
  enable_online_resize = true # Allow us to resize volume while attached.
}

resource "openstack_blockstorage_volume_v3" "kubevolumesnap" {
  count                = var.kubesize # size of cluster
  name                 = "kube${count.index + 1}-matrix-test-sunet-se-vol"
  description          = "OS volume for kubernetes node ${count.index + 1}"
  size                 = 50
  enable_online_resize = true # Allow us to resize volume while attached.
}

# Create instances of kubernetes nodes
resource "openstack_compute_instance_v2" "kube" {
  name            = "kube${count.index + 1}.matrix-test.sunet.se"
  count           = var.kubesize
  flavor_id       = data.openstack_compute_flavor_v2.b2c4r16.id
  key_pair        = data.openstack_compute_keypair_v2.manderssonpub.id
  security_groups = [ 
                      data.openstack_networking_secgroup_v2.sshfromjumphosts.name, 
                      data.openstack_networking_secgroup_v2.allegress.name,
                      resource.openstack_networking_secgroup_v2.kubenode.name
                    ]
  user_data       = templatefile("kube-user.tpl",{})

  network {
    port   = resource.openstack_networking_port_v2.kubeport[count.index].id
  }

  block_device {
  uuid             = resource.openstack_blockstorage_volume_v3.kubevolumeboot[count.index].id
  source_type      = "volume"
  destination_type = "volume"
  boot_index       = 0
  }
}

resource "openstack_compute_volume_attach_v2" "snapvolattach" {
  instance_id = openstack_compute_instance_v2.kube[count.index].id
  volume_id   = openstack_blockstorage_volume_v3.kubevolumesnap[count.index].id
  count       = var.kubesize
  depends_on  = [ resource.openstack_compute_instance_v2.kube[count.index] ]
}