Following up some issues here:
I manage to fix ( although awaiting some feedback to validate the solutions ).
When running the sanity check from one of the fronts, I gets these:
[Check kaltura-batch daemon status] [SKIPPED as kaltura-batch is not installed]
[Check kaltura-batch daemon init] [SKIPPED as kaltura-batch is not installed]
Which is interesting, since batch is indeed installed and running, although in another host, of course.
[kaltura-kmc ver in KMC config.ini] [PASSED, RC: 0] - [.051767753]
PHP Warning: file_get_contents(): SSL operation failed with code 1. OpenSSL Error messages:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed in /opt/kaltura/bin/get_kmc_swfs.php on line 11
PHP Warning: file_get_contents(): Failed to enable crypto in /opt/kaltura/bin/get_kmc_swfs.php on line 11
PHP Warning: file_get_contents(https://media.xxxxx.com:443/kmc): failed to open stream: operation failed in /opt/kaltura/bin/get_kmc_swfs.php on line 11
[Get KMC SWFs] [FAILED, RC: 255] - [.092134882]
Which is interesting also as I can curl it perfectly:
# curl -I https://media.xxxxx.com:443/kmcHTTP/1.0 200 OK
Date: Thu, 30 Sep 2021 19:25:48 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.2.34
X-Powered-By: PHP/7.2.34
X-Kaltura-Session: 1917060332, 1633029948
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
X-Frame-Options: DENY
X-Me: media.xxxxx.com
Connection: close
Content-Type: text/html; charset=utf-8
But indeed, uploading content, aside from taking a long time, does NOT play and the spinning wheel is all we get:
Can someone shed some light here?