From a65c4b9cf6bd13343125ebff1b24796650844fd2 Mon Sep 17 00:00:00 2001
From: Kris Lamoureux <kris@lamoureux.io>
Date: Tue, 10 Oct 2023 00:14:52 -0400
Subject: [PATCH] Handle Ansible undefined loop variable

- Default docker_compose_deploy to empty list if undefined
- Add conditional check to avoid looping through an empty list
---
 roles/docker/tasks/main.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/roles/docker/tasks/main.yml b/roles/docker/tasks/main.yml
index fd37dbb..68036ac 100644
--- a/roles/docker/tasks/main.yml
+++ b/roles/docker/tasks/main.yml
@@ -74,10 +74,10 @@
   delegate_to: "{{ inventory_hostname }}"
   register: compose_update
   notify: compose_restart
-  loop: "{{ docker_compose_deploy }}"
+  loop: "{{ docker_compose_deploy | default([]) }}"
   loop_control:
     label: "{{ item.name }}"
-  when: docker_compose_deploy is defined
+  when: docker_compose_deploy is defined and docker_compose_deploy | length > 0
 
 - name: Set environment variables for docker-compose projects
   ansible.builtin.template: