Idempotence fix for /etc/systemd/system/tomcat9.service.d/override.conf

[RodBruce]

When I try to run the playbook against an existing site running on Ubuntu 20.04 it hangs at the task:
"Wait for Blazegraph to come up" which is in the file:
roles/internal/Islandora-Devops.blazegraph/tasks/namespace.yml

What is happening here is that Tomcat isn't starting cleanly.

The problem is the way the file:
/etc/systemd/system/tomcat9.service.d/override.conf

Is getting added and modified in the file:
roles/internal/Islandora-Devops.tomcat/tasks/install-Debian.yml

I changed it so if the file is already there it won't overwrite it and will only add lines if they are not already there.

After I made the change I can run the playbook against an installed site and it works for me.

Here is a diff of my changes:

diff install-Debian.yml.save install-Debian.yml
24,29c24,28
< - name: Create file with sandbox overrides
<   copy:
<     dest: "/etc/systemd/system/tomcat9.service.d/override.conf"
<     content: |
<       [Service]
<       ReadWritePaths={{ blazegraph_home_dir }}/data/
---
> - name: Create a file for sandbox overrides
>   ansible.builtin.lineinfile:
>     path: "/etc/systemd/system/tomcat9.service.d/override.conf"
>     line: "[Service]"
>     create: yes
30a30,36
> 
> - name: Add Blazegraph ReadWritePaths to sandbox overrides
>   ansible.builtin.lineinfile:
>     path: "/etc/systemd/system/tomcat9.service.d/override.conf"
>     regex: "^ReadWritePaths={{ blazegraph_home_dir }}/data/$"
>     line: "ReadWritePaths={{ blazegraph_home_dir }}/data/"
>     insertafter: "[Service]"

Thanks