From 82eedbd62208f5fadd38427119526a01c132b718 Mon Sep 17 00:00:00 2001
From: Yorgos Saslis <g.saslis@gmail.com>
Date: Tue, 5 Sep 2017 14:10:53 +0300
Subject: [PATCH] Update ansible inventory file when template changes (#1612)
This trigger ensures the inventory file is kept up-to-date. Otherwise, if the file exists and you've made changes to your terraform-managed infra without having deleted the file, it would never get updated.
For example, consider the case where you've destroyed and re-applied the terraform resources, none of the IPs would get updated, so ansible would be trying to connect to the old ones.
---
contrib/terraform/aws/create-infrastructure.tf | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/contrib/terraform/aws/create-infrastructure.tf b/contrib/terraform/aws/create-infrastructure.tf
index a58bca53c..f1f1e205b 100644
--- a/contrib/terraform/aws/create-infrastructure.tf
+++ b/contrib/terraform/aws/create-infrastructure.tf
@@ -162,7 +162,7 @@ resource "aws_instance" "k8s-worker" {
*/
data "template_file" "inventory" {
template = "${file("${path.module}/templates/inventory.tpl")}"
-
+
vars {
public_ip_address_bastion = "${join("\n",formatlist("bastion ansible_ssh_host=%s" , aws_instance.bastion-server.*.public_ip))}"
connection_strings_master = "${join("\n",formatlist("%s ansible_ssh_host=%s",aws_instance.k8s-master.*.tags.Name, aws_instance.k8s-master.*.private_ip))}"
@@ -176,6 +176,7 @@ data "template_file" "inventory" {
kube_insecure_apiserver_address = "kube_apiserver_insecure_bind_address: ${var.kube_insecure_apiserver_address}"
}
+
}
resource "null_resource" "inventories" {
@@ -183,4 +184,8 @@ resource "null_resource" "inventories" {
command = "echo '${data.template_file.inventory.rendered}' > ../../../inventory/hosts"
}
+ triggers {
+ template = "${data.template_file.inventory.rendered}"
+ }
+
}
--
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