extract Terraform dummy-module to separate repo
https://github.com/status-im/infra-tf-dummy-module Signed-off-by: Jakub Sokołowski <jakub@status.im>
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# Description
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This is a dummy module which does not create any actual cloud resources. It's intended for registering hosts which cannot be managed with Terraform to our infra.
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For example providers like Hetzner or MacStadium have no provider module for Terrafom.
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This module creates the Ansible inventory hosts in order to make hosts appear the same way all the other hosts created by Terraform do.
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/*************************************************
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* WARNING!
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* This is just creating the inventory entries
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* the same way I do it for other hosts so
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* Ansible can use them during provisioning.
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*************************************************/
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/* DERIVED --------------------------------------*/
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locals {
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stage = var.stage != "" ? var.stage : terraform.workspace
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tokens = split(".", local.stage)
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dc = "${var.prefix}-${var.region}"
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# map of hostname => ip
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hostnames = { for i, ip in var.ips :
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"${var.name}-${format("%02d", i + 1)}.${local.dc}.${var.env}.${local.stage}" => ip
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}
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}
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/* RESOURCES ------------------------------------*/
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resource "ansible_host" "host" {
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for_each = local.hostnames
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inventory_hostname = each.key
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groups = [var.group, local.dc, "${var.env}.${local.stage}"]
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vars = {
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hostname = each.key
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dns_entry = "${each.key}.${var.domain}"
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dns_domain = var.domain
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data_center = local.dc
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region = var.region
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env = var.env
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stage = local.stage
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ansible_host = each.value
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/* Optional extra Ansible variables necessary for Windows */
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ansible_shell_type = (var.shell_type == null ? null : var.shell_type)
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ansible_become_user = (var.become_user == null ? null : var.become_user)
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ansible_become_method = (var.become_method == null ? null : var.become_method)
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}
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}
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resource "cloudflare_record" "host" {
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for_each = local.hostnames
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zone_id = var.zone_id
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name = each.key
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value = each.value
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type = "A"
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}
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output "public_ips" {
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value = var.ips
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}
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output "hostnames" {
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value = keys(local.hostnames)
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}
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output "hosts" {
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value = local.hostnames
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}
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/* SCALING --------------------------------------*/
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variable "region" {
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description = "Region in which the host reside."
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type = string
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}
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variable "prefix" {
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description = "Short name of provider being used."
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type = string
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default = "ms"
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}
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/* STATIC ---------------------------------------*/
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variable "ips" {
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description = "Static list of IPs used by the hosts."
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type = list(string)
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}
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/* GENERAL --------------------------------------*/
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variable "name" {
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description = "Prefix of hostname before index."
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type = string
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default = "node"
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}
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variable "group" {
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description = "Name of Ansible group to add hosts to."
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type = string
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}
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variable "env" {
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description = "Environment for these hosts, affects DNS entries."
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type = string
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}
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variable "stage" {
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description = "Name of stage, like prod, dev, or staging."
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type = string
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default = ""
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}
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variable "domain" {
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description = "DNS Domain to update"
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type = string
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}
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variable "zone_id" {
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description = "ID of CloudFlare zone for host record."
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/* We default to: statusim.net */
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default = "14660d10344c9898521c4ba49789f563"
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}
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variable "shell_type" {
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description = "Type of shell used by Ansible."
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type = string
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default = null
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}
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variable "become_user" {
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description = "What user Ansible should become."
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type = string
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default = null
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}
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variable "become_method" {
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description = "Method used by Ansible to become a user."
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type = string
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default = null
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}
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terraform {
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required_version = "~> 1.0.0"
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required_providers {
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ansible = {
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source = "nbering/ansible"
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version = " = 1.0.4"
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}
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cloudflare = {
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source = "cloudflare/cloudflare"
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version = " = 2.21.0"
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}
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}
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}
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