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Implement VPN configuration using a 'terraform module'.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| # | ||
| # Project Name:: en_infra_aws | ||
| # File:: vpn.tf | ||
| # | ||
| # Copyright (C) 2017 - Present | ||
| # Author: 'Mihai Vultur <mihai.vultur@___.com>' | ||
| # | ||
| # All rights reserved | ||
| # | ||
| # Description: | ||
| # Uses 'VPN module' to configure a OpenVPN server on the remote instance | ||
| # | ||
|
|
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| module "vpn" { | ||
| source = "../modules/vpn" | ||
| vpn_ip = "${module.nat.public_ip}" | ||
| vpn_port = "${var.vpn_port}" | ||
| vpc_cidr = "${var.vpc_cidr}" | ||
| ssh_user = "${var.ssh_user}" | ||
| #-- assuming 'private key name' by removing the '.pub' extension | ||
| private_key_file = "${replace(var.ssh_public_key_file, ".pub", "")}" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| { | ||
| "openvpn": { | ||
| "tar_path": "/home/${client_prefix}/keys", | ||
| "script_security": 2, | ||
| "push_routes": [ | ||
| "${push_routes_array}" | ||
| ], | ||
| "gateway": "${gateway_address}", | ||
| "config": { | ||
| "proto": "${vpn_proto}", | ||
| "cipher": "AES-256-CBC", | ||
| "port": ${vpn_port} | ||
| }, | ||
| "client_prefix": "${client_prefix}", | ||
| "signing_ca_cert": "/etc/openvpn/keys/${client_prefix}.crt", | ||
| "signing_ca_key": "/etc/openvpn/keys/${client_prefix}.key", | ||
| "key": { | ||
| "country": "RO", | ||
| "province": "CJ", | ||
| "city": "Cluj Napoca", | ||
| "org": "Endava", | ||
| "email": "[email protected]" | ||
| } | ||
| }, | ||
| "run_list": [ | ||
| "recipe[en_deploy_openvpn]" | ||
| ] | ||
| } |
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| @@ -0,0 +1,3 @@ | ||
| #cloud-config | ||
| hostname: NAT-VPN | ||
| manage_etc_hosts: true |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| # | ||
| # Project Name:: en_infra_aws | ||
| # Module:: VPN | ||
| # | ||
| # Copyright (C) 2017 - Present | ||
| # Author: 'Mihai Vultur <mihai.vultur@___.com>' | ||
| # | ||
| # All rights reserved | ||
| # | ||
| # Description: | ||
| # VPN module configures a OpenVPN server on the remote instance | ||
| # | ||
|
|
||
| data "template_file" "custom_attrib" { | ||
| template = "${file("../files/provisioning/vpn_custom_attrib.tpl")}" | ||
| vars { | ||
| push_routes_array = "${cidrhost(var.vpc_cidr, 0)} ${cidrnetmask(var.vpc_cidr)}" | ||
| gateway_address = "${var.vpn_ip}" | ||
| vpn_port = "${var.vpn_port}" | ||
| vpn_proto = "${var.vpn_proto}" | ||
| client_prefix = "devops_cluj" | ||
| } | ||
| } | ||
|
|
||
| #-- Currently, as of terraform 0.9.2, it doesn't allow us | ||
| #-- to specify a common connection block to be used for all | ||
| #-- the provisioners, so we have to repeat that block for | ||
| #-- each provisioner | ||
|
|
||
| resource "null_resource" "preparation" { | ||
| triggers { | ||
| always = "${uuid()}" | ||
| } | ||
| #-- | ||
| provisioner "remote-exec" { | ||
| inline = [ | ||
| "rm -rf /home/${var.ssh_user}/provision", | ||
| "curl -L --create-dirs -o /home/${var.ssh_user}/provision/en_ovpn.tar.gz https://github.com/xxmitsu/en_ovpn/archive/EN_OVPN-${var.ovpn_cookbook_ver}.tar.gz", | ||
| "tar -xzf /home/${var.ssh_user}/provision/en_ovpn.tar.gz -C /home/${var.ssh_user}/provision/", | ||
| "cat > /home/centos/provision/en_ovpn-EN_OVPN-${var.ovpn_cookbook_ver}/provision/custom_attrib.json <<EOL\n${data.template_file.custom_attrib.rendered}\nEOL", | ||
| "/home/centos/provision/en_ovpn-EN_OVPN-${var.ovpn_cookbook_ver}/provision/provision.sh /home/centos/provision/en_ovpn-EN_OVPN-${var.ovpn_cookbook_ver}/provision/" | ||
| ] | ||
| connection { | ||
| host = "${var.vpn_ip}" | ||
| user = "${var.ssh_user}" | ||
| timeout = "30s" | ||
| private_key = "${file(var.private_key_file)}" | ||
| } | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| # | ||
| # Project Name:: en_infra_aws | ||
| # Module:: VPN - variables file | ||
| # | ||
| # Copyright (C) 2017 - Present | ||
| # Author: 'Mihai Vultur <mihai.vultur@___.com>' | ||
| # | ||
| # All rights reserved | ||
| # | ||
| # Description: | ||
| # VPN module specific variables | ||
| # | ||
|
|
||
| variable "ssh_user" { | ||
| description = "Name of the ssh user used for configuring the remote instances" | ||
| type = "string" | ||
| } | ||
|
|
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| variable "private_key_file" { | ||
| description = "Path to private key file used in combination with ssh_user" | ||
| } | ||
|
|
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| variable "ovpn_cookbook_ver" { | ||
| description = "Version of the custom chef cookbook used to configure the OpenVPN service." | ||
| default = "1.1.0" | ||
| } | ||
|
|
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| variable "vpn_ip" { | ||
| description = "IP Address of the OpenVPN server" | ||
| } | ||
|
|
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| variable "vpn_port" { | ||
| description = "Port that the OpenVPN server will listen to." | ||
| default = "1194" | ||
| } | ||
|
|
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| variable "vpn_proto" { | ||
| description = "Protocol used for VPN transport: 'udp' or 'tcp'." | ||
| default = "tcp" | ||
| } | ||
|
|
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| variable "vpc_cidr" { | ||
| description = "CIDR block we want the OpenVPN server to add a route to facilitate traffic." | ||
| } |