Consolidated Grafana Loki

[viccross]

Centralising the logging (and in future, the metrics) of a set of z/VM systems will be important for management. The current logging process relies on syslog forwarding, and the extension to the OpsMgr syslog capability to support the z/VM name means that this can be realised.

Steps:

• [ ] incorporate the updated syslog capability (including z/VM name) into the base ESI
• [ ] enable coordinator rsyslogd for TCP receiving
• [ ] implement syslog forwarding from non-coordinator ELANs to the coordinator Promtail

[viccross]

Decision points:

• was considering HAProxy for forwarding syslog, but it has its own forwarding capability.
• realised that it's more than just syslog since 7 Promtails are set up in total and only one is syslog... maybe HAProxy could do this forwarding to Loki...