View source for SLO/Docker-registry

{{Draft}}

==Summary==
This page covers the highly available [[Docker-registry|docker registry]] hosted at docker-registry.wikimedia.org.
{| class="wikitable"
|Owner
|Service Ops Team
|-
|Status
|ACTIVE
|-
|Dependencies
|Swift, PyBal
|-
|Services that depends on this one
|Kubernetes, CI
|}
==Architecture==
==Service Level Objectives==
===Service level objective 1: 95% of get manifest or tag operations will complete in less than 2s===
*Service level indicator 1: measured by DC, and will only take in account active DC for measurements [[https://grafana.wikimedia.org/d/StcefURWz/docker-registry-wip?orgId=1&var-datasource=codfw%20prometheus%2Fops&panelId=16&fullscreen&from=1556250746552&to=1556272346553 graph link]]
*Checked every month or at least every quarter
===Service level objective 2: 95% of push manifest or tag operations will complete in less than 3s===
*Service level indicator 1: measured by DC, and will only take in account active DC for measurements [[https://grafana.wikimedia.org/d/StcefURWz/docker-registry-wip?orgId=1&var-datasource=codfw%20prometheus%2Fops&panelId=16&fullscreen&from=1556250746552&to=1556272346553 graph link]]
*Checked every quarter/ month
===Service level objective 3: registry is serving content (at least in read-only mode, pulling images) 99% of the time===
*Service level indicator 1: 5XX responses over 2XX ratio is less than 1%
*Checked every quarter or month.