variable user_data  {
  type    = "string"
  default = <<EOF
#cloud-config
manage_etc_hosts: localhost
package_update: true
package_upgrade: true
EOF
}
resource "openstack_compute_keypair_v2" "k8s" {
    name = "kubernetes-${var.cluster_name}"
    public_key = "${chomp(file(var.public_key_path))}"
}

resource "openstack_compute_secgroup_v2" "k8s_master" {
    name = "${var.cluster_name}-k8s-master"
    description = "${var.cluster_name} - Kubernetes Master"
    rule {
        ip_protocol = "tcp"
        from_port = "6443"
        to_port = "6443"
        cidr = "0.0.0.0/0"
    }
}

resource "openstack_compute_secgroup_v2" "bastion" {
    name = "${var.cluster_name}-bastion"
    description = "${var.cluster_name} - Bastion Server"
    rule {
        ip_protocol = "tcp"
        from_port = "22"
        to_port = "22"
        cidr = "0.0.0.0/0"
    }
}

resource "openstack_compute_secgroup_v2" "k8s" {
    name = "${var.cluster_name}-k8s"
    description = "${var.cluster_name} - Kubernetes"
    rule {
        ip_protocol = "icmp"
        from_port = "-1"
        to_port = "-1"
        cidr = "0.0.0.0/0"
    }
    rule {
        ip_protocol = "tcp"
        from_port = "1"
        to_port = "65535"
        self = true
    }
    rule {
        ip_protocol = "udp"
        from_port = "1"
        to_port = "65535"
        self = true
    }
    rule {
        ip_protocol = "icmp"
        from_port = "-1"
        to_port = "-1"
        self = true
    }
}

resource "openstack_compute_instance_v2" "bastion" {
    name = "${var.cluster_name}-bastion-${count.index+1}"
    count = "${var.number_of_bastions}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_bastion}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s.name}",
                        "${openstack_compute_secgroup_v2.bastion.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "bastion"
        depends_on = "${var.network_id}"
    }

    provisioner "local-exec" {
	     command = "sed s/USER/${var.ssh_user}/ contrib/terraform/openstack/ansible_bastion_template.txt | sed s/BASTION_ADDRESS/${var.bastion_fips[0]}/ > contrib/terraform/openstack/group_vars/no-floating.yml"
    }

    user_data = "${var.user_data}"
}

resource "openstack_compute_instance_v2" "k8s_master" {
    name = "${var.cluster_name}-k8s-master-${count.index+1}"
    count = "${var.number_of_k8s_masters}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_master}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s_master.name}",
                        "${openstack_compute_secgroup_v2.bastion.name}",
                        "${openstack_compute_secgroup_v2.k8s.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "etcd,kube-master,kube-node,k8s-cluster,vault"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}

resource "openstack_compute_instance_v2" "k8s_master_no_etcd" {
    name = "${var.cluster_name}-k8s-master-ne-${count.index+1}"
    count = "${var.number_of_k8s_masters_no_etcd}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_master}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s_master.name}",
                        "${openstack_compute_secgroup_v2.k8s.name}" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "kube-master,kube-node,k8s-cluster,vault"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}

resource "openstack_compute_instance_v2" "etcd" {
    name = "${var.cluster_name}-etcd-${count.index+1}"
    count = "${var.number_of_etcd}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_etcd}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s.name}" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "etcd,vault,no-floating"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}


resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip" {
    name = "${var.cluster_name}-k8s-master-nf-${count.index+1}"
    count = "${var.number_of_k8s_masters_no_floating_ip}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_master}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s_master.name}",
                        "${openstack_compute_secgroup_v2.k8s.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "etcd,kube-master,kube-node,k8s-cluster,vault,no-floating"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}

resource "openstack_compute_instance_v2" "k8s_master_no_floating_ip_no_etcd" {
    name = "${var.cluster_name}-k8s-master-ne-nf-${count.index+1}"
    count = "${var.number_of_k8s_masters_no_floating_ip_no_etcd}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_master}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s_master.name}",
                        "${openstack_compute_secgroup_v2.k8s.name}" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "kube-master,kube-node,k8s-cluster,vault,no-floating"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}


resource "openstack_compute_instance_v2" "k8s_node" {
    name = "${var.cluster_name}-k8s-node-${count.index+1}"
    count = "${var.number_of_k8s_nodes}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_node}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s.name}",
                        "${openstack_compute_secgroup_v2.bastion.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "kube-node,k8s-cluster"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}

resource "openstack_compute_instance_v2" "k8s_node_no_floating_ip" {
    name = "${var.cluster_name}-k8s-node-nf-${count.index+1}"
    count = "${var.number_of_k8s_nodes_no_floating_ip}"
    image_name = "${var.image}"
    flavor_id = "${var.flavor_k8s_node}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = [ "${openstack_compute_secgroup_v2.k8s.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user}"
        kubespray_groups = "kube-node,k8s-cluster,no-floating"
        depends_on = "${var.network_id}"
    }
    user_data = "${var.user_data}"
}

resource "openstack_compute_floatingip_associate_v2" "bastion" {
    count = "${var.number_of_bastions}"
    floating_ip = "${var.bastion_fips[count.index]}"
    instance_id = "${element(openstack_compute_instance_v2.bastion.*.id, count.index)}"
}

resource "openstack_compute_floatingip_associate_v2" "k8s_master" {
    count = "${var.number_of_k8s_masters}"
    instance_id = "${element(openstack_compute_instance_v2.k8s_master.*.id, count.index)}"
    floating_ip = "${var.k8s_master_fips[count.index]}"
}

resource "openstack_compute_floatingip_associate_v2" "k8s_node" {
    count = "${var.number_of_k8s_nodes}"
    floating_ip = "${var.k8s_node_fips[count.index]}"
    instance_id = "${element(openstack_compute_instance_v2.k8s_node.*.id, count.index)}"
}


resource "openstack_blockstorage_volume_v2" "glusterfs_volume" {
  name = "${var.cluster_name}-glusterfs_volume-${count.index+1}"
  count = "${var.number_of_gfs_nodes_no_floating_ip}"
  description = "Non-ephemeral volume for GlusterFS"
  size = "${var.gfs_volume_size_in_gb}"
}

resource "openstack_compute_instance_v2" "glusterfs_node_no_floating_ip" {
    name = "${var.cluster_name}-gfs-node-nf-${count.index+1}"
    count = "${var.number_of_gfs_nodes_no_floating_ip}"
    image_name = "${var.image_gfs}"
    flavor_id = "${var.flavor_gfs_node}"
    key_pair = "${openstack_compute_keypair_v2.k8s.name}"
    network {
        name = "${var.network_name}"
    }
    security_groups = ["${openstack_compute_secgroup_v2.k8s.name}",
                        "default" ]
    metadata = {
        ssh_user = "${var.ssh_user_gfs}"
        kubespray_groups = "gfs-cluster,network-storage,no-floating"
        depends_on = "${var.network_id}"
    }
    user_data = "#cloud-config\nmanage_etc_hosts: localhost\npackage_update: true\npackage_upgrade: true"
}

resource "openstack_compute_volume_attach_v2" "glusterfs_volume" {
  count = "${var.number_of_gfs_nodes_no_floating_ip}"
  instance_id = "${element(openstack_compute_instance_v2.glusterfs_node_no_floating_ip.*.id, count.index)}"
  volume_id   = "${element(openstack_blockstorage_volume_v2.glusterfs_volume.*.id, count.index)}"
}