diff --git a/.gitignore b/.gitignore
index a9e8a0c..cd27389 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,8 +3,9 @@
 **/.terraform/*
 
 # .tfstate files
-*.tfstate
+# *.tfstate
 *.tfstate.*
+!terraform.tfstate
 
 # Crash log files
 crash.log
@@ -16,7 +17,7 @@ crash.*.log
 # to change depending on the environment.
 *.tfvars
 *.tfvars.json
-
+!*.auto.tfvars
 # Ignore override files as they are usually used to override resources locally and so
 # are not checked in
 override.tf
@@ -34,3 +35,14 @@ override.tf.json
 .terraformrc
 terraform.rc
 
+# output plans
+*-plan.zip
+
+
+# Ignore ssh_key_file_ref
+**/ssh-key-ref-outputs.tf
+
+# Ignore the lock files
+*.lock.hcl
+
+.project