ci: prune docker tags prefixed with "master-" older than 90 days #1639
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A tool to delete old image tags has been added, since we found out it's the cause of our Drone manifest pushing woes. This should run on merge, and deletes any images prefixed with
master-
fromgrafana/loki
,grafana/promtail
, andgrafana/loki-canary
.The
<branch>-<SHA>
tags are treated as ephemeral and we can't guarantee they'll exist forever; but we can guarantee that all other tags will always exist.