From 8ed7802bbb3bfcc16d06841c0ee0992ca5833dab Mon Sep 17 00:00:00 2001
From: Bradley <41597815+userbradley@users.noreply.github.com>
Date: Thu, 7 Sep 2023 10:25:07 +0100
Subject: [PATCH] terraform parralelism flag

---
 .../terraform/terraform-refresh-takes-ages.md | 35 +++++++++++++++++++
 mkdocs.yml                                    |  1 +
 2 files changed, 36 insertions(+)
 create mode 100644 docs/automation/iac/terraform/terraform-refresh-takes-ages.md

diff --git a/docs/automation/iac/terraform/terraform-refresh-takes-ages.md b/docs/automation/iac/terraform/terraform-refresh-takes-ages.md
new file mode 100644
index 00000000..95f91f8c
--- /dev/null
+++ b/docs/automation/iac/terraform/terraform-refresh-takes-ages.md
@@ -0,0 +1,35 @@
+---
+title: Terraform refresh takes ages
+---
+
+## What
+
+This can happen with both Terraform and Terragrunt, so this applies to al
+
+The issue is when running a `terraform plan` the plan will sit at the below for ages
+
+```text
+...
+google_folder.sandbox: Refreshing state... [id=folders/<>]
+...
+^CStopping operation...
+```
+
+This happens because terraform sucks at walking the graph
+
+## Solution
+
+Set the [`parallelism` flag to 20](https://developer.hashicorp.com/terraform/cli/commands/apply#parallelism-n) and disable a refresh
+
+
+=== "Terraform"
+
+    ```shell
+    terraform plan -parallelism=20 -refresh=false
+    ```
+
+=== "Terragrunt"
+
+    ```shell
+    terragrunt plan -parallelism=20 -refresh=false
+    ```
diff --git a/mkdocs.yml b/mkdocs.yml
index 8caf5d5e..9afab0d0 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -15,6 +15,7 @@ nav:
           - Remote Data: automation/iac/terraform/remote-data.md
           - Terraform lock file update: automation/iac/terraform/terraform-lock-file-update.md
           - "Terraform plugin Cannot locate module locally, unknown reason": automation/iac/terraform/terraform-plugin-cannot-locate-module-locally-unknown-reason.md
+          - Terraform refresh takes ages: automation/iac/terraform/terraform-refresh-takes-ages.md
           - Terraform Sleep: automation/iac/terraform/terraform-sleep.md
           - Terraform verbose: automation/iac/terraform/terraform-verbose.md
           - tfupdate: automation/iac/terraform/tfupdate.md