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oci-vpn-lab.tf
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oci-vpn-lab.tf
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provider "oci" {
alias = "vpnlab"
tenancy_ocid = "${var.tenancy_ocid}"
user_ocid = "${var.user_ocid}"
fingerprint = "${var.fingerprint}"
private_key_path = "${var.private_key_path}"
region = "${lookup(var.regions-map, var.region)}"
}
resource "oci_core_drg" "cloud-drg" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
display_name = "cloud.drg"
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_vcn" "cloud-vcn" {
provider = "oci.vpnlab"
cidr_block = "${var.cloud-vcn-cidr}"
dns_label = "cloudvcn"
compartment_id = "${var.compartment_ocid}"
display_name = "cloud.vcn"
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_vcn" "onprem-vcn" {
provider = "oci.vpnlab"
cidr_block = "${var.onprem-vcn-cidr}"
dns_label = "onpremvcn"
compartment_id = "${var.compartment_ocid}"
display_name = "onprem.vcn"
freeform_tags = [{"lab"= "network"},{"vpn"="onprem"}]
}
resource "oci_core_internet_gateway" "cloud-igw" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.cloud-vcn.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
display_name = "cloud.igw"
}
resource "oci_core_route_table" "cloud-rt" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.cloud-vcn.id}"
display_name = "cloud.rt"
route_rules =[ {
destination = "${var.onprem-vcn-cidr}"
network_entity_id = "${oci_core_drg.cloud-drg.id}"
},
{
destination = "0.0.0.0/0"
network_entity_id = "${oci_core_internet_gateway.cloud-igw.id}"
},
]
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_security_list" "cloud-sl" {
provider = "oci.vpnlab"
display_name = "cloud-sl"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.cloud-vcn.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "cloud"}]
egress_security_rules = [{
protocol = "all"
destination = "0.0.0.0/0"
}]
ingress_security_rules = [{
tcp_options {
"max" = 22
"min" = 22
}
protocol = "6"
source = "0.0.0.0/0"
},
{
protocol = 1
source = "${var.onprem-vcn-cidr}"
},
]
}
resource "oci_core_drg_attachment" "cloud-drg-att" {
provider = "oci.vpnlab"
drg_id = "${oci_core_drg.cloud-drg.id}"
vcn_id = "${oci_core_vcn.cloud-vcn.id}"
}
resource "oci_core_subnet" "cloud-sub" {
provider = "oci.vpnlab"
cidr_block = "${var.cloud-sub-cidr}"
display_name = "cloud.sub"
dns_label = "cloudsub"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.cloud-vcn.id}"
security_list_ids =[ "${oci_core_security_list.cloud-sl.id}"]
route_table_id = "${oci_core_route_table.cloud-rt.id}"
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_cpe" "cloud-cpe" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
ip_address = "${oci_core_instance.libreswan-instance.public_ip}"
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_ipsec" "cloud-ipsec-connection" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
cpe_id = "${oci_core_cpe.cloud-cpe.id}"
drg_id = "${oci_core_drg.cloud-drg.id}"
static_routes = ["0.0.0.0/0"]
display_name = "cloud.vpn"
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
resource "oci_core_internet_gateway" "onprem-igw" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
display_name = "onprem.igw"
}
resource "oci_core_route_table" "onprem-dmz-rt" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
display_name = "onprem.dmz-rt"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
route_rules = [{
destination = "0.0.0.0/0"
network_entity_id = "${oci_core_internet_gateway.onprem-igw.id}"
}]
}
resource "oci_core_route_table" "onprem-secure-rt" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
display_name = "onprem.secure-rt"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
route_rules = [{
destination = "0.0.0.0/0"
network_entity_id = "${oci_core_internet_gateway.onprem-igw.id}"
},
{
destination = "${var.cloud-vcn-cidr}"
network_entity_id = "${lookup(data.oci_core_private_ips.libreswan-private-ip-ds.private_ips[0],"id")}"
}]
}
resource "oci_core_security_list" "onprem-dmz-sl" {
provider = "oci.vpnlab"
display_name = "onprem-dmz-sl"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
egress_security_rules = [{
protocol = "all"
destination = "0.0.0.0/0"
}]
ingress_security_rules = [{
tcp_options {
"max" = 22
"min" = 22
}
protocol = "6"
source = "0.0.0.0/0"
},
{
protocol = 1
source = "${var.cloud-vcn-cidr}"
},
{
protocol = 1
source = "${var.onprem-dmz-sub-cidr}"
},
{
protocol = 50
source = "0.0.0.0/0"
},
]
}
resource "oci_core_subnet" "onprem-dmz-sub" {
provider = "oci.vpnlab"
cidr_block = "${var.onprem-dmz-sub-cidr}"
display_name = "onprem.dmz"
dns_label = "onpremdmz"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
security_list_ids = ["${oci_core_security_list.onprem-dmz-sl.id}"]
route_table_id = "${oci_core_route_table.onprem-dmz-rt.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
}
resource "oci_core_subnet" "onprem-secure-sub" {
provider = "oci.vpnlab"
cidr_block = "${var.onprem-secure-sub-cidr}"
display_name = "onprem.secure"
dns_label = "onpremsecure"
compartment_id = "${var.compartment_ocid}"
vcn_id = "${oci_core_vcn.onprem-vcn.id}"
route_table_id = "${oci_core_route_table.onprem-secure-rt.id}"
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
}
data "oci_identity_availability_domain" "ad" {
provider = "oci.vpnlab"
compartment_id = "${var.tenancy_ocid}"
ad_number = 1
}
resource "oci_core_instance" "libreswan-instance" {
provider = "oci.vpnlab"
availability_domain = "${data.oci_identity_availability_domain.ad.name}"
compartment_id = "${var.compartment_ocid}"
shape = "${var.libreswan-shape}"
create_vnic_details {
subnet_id = "${oci_core_subnet.onprem-dmz-sub.id}"
skip_source_dest_check = "true"
}
display_name = "libreswan"
hostname_label = "libreswan"
metadata {
ssh_authorized_keys = "${var.ssh_public_key}"
user_data = "${base64encode(file(var.bootstrapfile))}"
}
source_details {
source_id = "${var.centos7-image[lookup(var.regions-map, var.region)]}"
source_type = "image"
}
preserve_boot_volume = false
freeform_tags = [{"lab"= "network"},{"vpn"= "onprem"}]
}
resource "oci_core_instance" "cloud-instance" {
provider = "oci.vpnlab"
availability_domain = "${data.oci_identity_availability_domain.ad.name}"
compartment_id = "${var.compartment_ocid}"
shape = "${var.cloud-instance-shape}"
create_vnic_details {
subnet_id = "${oci_core_subnet.cloud-sub.id}"
}
display_name = "cloud.instance"
hostname_label = "cloudinstance"
metadata {
ssh_authorized_keys = "${var.ssh_public_key}"
}
source_details {
source_id = "${var.ol7-image[lookup(var.regions-map, var.region)]}"
source_type = "image"
}
preserve_boot_volume = false
freeform_tags = [{"lab"= "network"},{"vpn"="cloud"}]
}
data "oci_core_vnic_attachments" "libreswan-vnic-att-ds" {
provider = "oci.vpnlab"
compartment_id = "${var.compartment_ocid}"
instance_id = "${oci_core_instance.libreswan-instance.id}"
}
# Gets the OCID of the first (default) VNIC
data "oci_core_vnic" "libreswan-vnic-ds" {
provider = "oci.vpnlab"
vnic_id = "${lookup(data.oci_core_vnic_attachments.libreswan-vnic-att-ds.vnic_attachments[0],"vnic_id")}"
}
# List Private IPs
data "oci_core_private_ips" "libreswan-private-ip-ds" {
provider = "oci.vpnlab"
vnic_id = "${data.oci_core_vnic.libreswan-vnic-ds.id}"
}
resource "null_resource" "update-ips" {
triggers {
libreswan-instance-ids = "${join(",", oci_core_ipsec.cloud-ipsec-connection.*.id)}"
}
provisioner "local-exec" {
command = "sleep 9"
}
provisioner "remote-exec" {
connection {
agent = false
timeout = "10m"
host = "${oci_core_instance.libreswan-instance.public_ip}"
user = "opc"
private_key = "${var.ssh_private_key}"
}
inline = [
"sudo service ipsec stop",
"sudo sed -i 's/__libreswan_instance_private_ip__/${oci_core_instance.libreswan-instance.private_ip}/g' /etc/ipsec.d/oci-ipsec.conf",
"sudo sed -i 's/__libreswan_instance_public_ip__/${oci_core_instance.libreswan-instance.public_ip}/g' /etc/ipsec.d/oci-ipsec.conf",
"sudo sed -i 's/__ip_address_tunnel_1__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[0],"ip_address")}/g' /etc/ipsec.d/oci-ipsec.conf",
"sudo sed -i 's/__ip_address_tunnel_2__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[1],"ip_address")}/g' /etc/ipsec.d/oci-ipsec.conf",
"sudo sed -i 's/__libreswan_instance_public_ip__/${oci_core_instance.libreswan-instance.public_ip}/g' /etc/ipsec.d/oci-ipsec.secrets",
"sudo sed -i 's/__ip_address_tunnel_1__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[0],"ip_address")}/g' /etc/ipsec.d/oci-ipsec.secrets",
"sudo sed -i 's/__ip_address_tunnel_2__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[1],"ip_address")}/g' /etc/ipsec.d/oci-ipsec.secrets",
"sudo sed -i 's/__psk1__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[0],"shared_secret")}/g' /etc/ipsec.d/oci-ipsec.secrets",
"sudo sed -i 's/__psk2__/${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[1],"shared_secret")}/g' /etc/ipsec.d/oci-ipsec.secrets",
"sudo service ipsec start",
"sleep 7",
"sudo ip route add ${var.cloud-vcn-cidr} nexthop dev vti1 nexthop dev vti2",
]
}
}
output "libreswan_ips" {
value = [
"${oci_core_instance.libreswan-instance.private_ip}",
"${oci_core_instance.libreswan-instance.public_ip}"
]
}
output "cloud-instance_ips" {
value = [
"${oci_core_instance.cloud-instance.private_ip}",
"${oci_core_instance.cloud-instance.public_ip}"
]
}
data "oci_core_ipsec_config" "cloud-ipsec-config" {
ipsec_id = "${oci_core_ipsec.cloud-ipsec-connection.id}"
}
output "tunnel-1" {
value = [
"${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[0],"ip_address")}",
"${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[0],"shared_secret")}"
]
}
output "tunnel-2" {
value = [
"${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[1],"ip_address")}",
"${lookup(data.oci_core_ipsec_config.cloud-ipsec-config.tunnels[1],"shared_secret")}"
]
}