Abstract Wikipedia team/Observability

In respect of the main pillars of Observability according to SRE, our have tools for Wikifunctions are:

1. Logging
2. Metrics
3. Tracing
4. Alerting

Supplementary info:

• https://wikitech.wikimedia.org/wiki/Logstash
• https://wikitech.wikimedia.org/wiki/MediaWiki_On_Kubernetes
• https://wikitech.wikimedia.org/wiki/SRE/Infrastructure_naming_conventions
• https://wikitech.wikimedia.org/wiki/Deployment_server