[cloud-sql-proxy] Running the Cloud SQL Proxy as a persistent service

[pietroventurini]

Hello :) , I needed to run the Cloud SQL Proxy as a persistent service as recommended by the Cloud SQL documentation for production environments.

I couldn't find an example of it, so I would like to propose to update the cloud-sql-proxy.sh script, so to add automatic restart capabilities to the proxy by including into the systemd service unit configuration (line 312) something like:

[Service]
# ...

Restart=on-failure
RestartSec=5

This would be similar to what has been done in other scripts, for instance in solr.sh

1. Do you think it might be convenient for users to have such capability provided in the sample?
2. Do you see any downsides to such proposal?

Thank you!