7df527e1ef | ||
---|---|---|
.. | ||
docker-images | ||
Corefile | ||
README.md | ||
cloud-config.yaml | ||
main.tf | ||
outputs.tf | ||
static-vpn-gw-cloud-init.yaml | ||
variables.tf | ||
versions.tf |
README.md
Containerized on-premises infrastructure
This module manages a cloud-config
configuration that starts an emulated on-premises infrastructure running in Docker Compose on a single instance, and connects it via static or dynamic VPN to a Google Cloud VPN gateway.
The emulated on-premises infrastructure is composed of:
- a Strongswan container managing the VPN tunnel to GCP
- an optional Bird container managing the BGP session
- a CoreDNS container servng local DNS and forwarding to GCP
- an Nginx container serving a simple static web page
- a generic Linux container used as a jump host inside the on-premises network
A complete scenario using this module is available in the networking blueprints.
The module renders the generated cloud config in the cloud_config
output, to be used in instances or instance templates via the user-data
metadata.
Examples
Static VPN
module "cloud-vpn" {
source = "./fabric/modules/net-vpn-static"
project_id = "my-project"
region = "europe-west1"
network = "my-vpc"
name = "to-on-prem"
remote_ranges = ["192.168.192.0/24"]
tunnels = {
remote-0 = {
peer_ip = module.vm.external_ip
traffic_selectors = { local = ["0.0.0.0/0"], remote = null }
}
}
}
module "on-prem" {
source = "./fabric/modules/cloud-config-container/onprem"
vpn_config = {
type = "static"
peer_ip = module.cloud-vpn.address
shared_secret = module.cloud-vpn.random_secret
}
}
module "vm" {
source = "./fabric/modules/compute-vm"
project_id = "my-project"
zone = "europe-west8-b"
name = "cos-nginx-tls"
network_interfaces = [{
nat = true
network = "default"
subnetwork = "gce"
}]
metadata = {
user-data = module.on-prem.cloud_config
google-logging-enabled = true
}
boot_disk = {
image = "projects/cos-cloud/global/images/family/cos-stable"
type = "pd-ssd"
size = 10
}
tags = ["ssh"]
}
# tftest skip
Variables
name | description | type | required | default |
---|---|---|---|---|
vpn_config | VPN configuration, type must be one of 'dynamic' or 'static'. | object({…}) |
✓ | |
config_variables | Additional variables used to render the cloud-config and CoreDNS templates. | map(any) |
{} |
|
coredns_config | CoreDNS configuration path, if null default will be used. | string |
null |
|
local_ip_cidr_range | IP CIDR range used for the Docker onprem network. | string |
"192.168.192.0/24" |
|
vpn_dynamic_config | BGP configuration for dynamic VPN, ignored if VPN type is 'static'. | object({…}) |
{…} |
|
vpn_static_ranges | Remote CIDR ranges for static VPN, ignored if VPN type is 'dynamic'. | list(string) |
["10.0.0.0/8"] |
Outputs
name | description | sensitive |
---|---|---|
cloud_config | Rendered cloud-config file to be passed as user-data instance metadata. |