Hi Guys,
A number of services are moving their APIs to require TLS 1.3 because of a vulnerability in TLS 1.2, which means you need to be running pretty recent versions of PHP and OpenSSL to access them. PHP needs to be 7.4.
Opsgenie is already requiring TLS 1.3, so if you're using them for your alerting, please make sure you're running a recent enough version of PHP for the API calls to function.
You can test this on your system with the test_alert.php CLI script in the Observium root directory.
In general, Observium is a fairly demanding PHP application so it's good practice to try to keep PHP as up to date as possible. We've seen some very nice performance improvements over the past few years, and 8.0 is going to bring even more.
For this reason we don't recommend running Observium on distributions like RHEL/CentOS which hold old versions for as long as possible.
Thanks,
Adam.