As described by @BBlack in today's SRE meeting, members of the performance team (perf-team / @Imarlier ) also need access to webservers hosting misc static sites (currently bromine and vega) because it now hosts sitemap.wikimedia.org
This can be achieved by adding the perf-roots admin group to the puppet role webserver_misc_static in hierdata/role/common/. and would give them root access on bromine.eqiad.wmnet and vega.codfw.wmnet
This is replacing the access formerly requested in T201350 and the reason for all this is to work on T199252 and the other sitemap-related tickets linked from there.
Up further thought the releases servers (releases1001/2001) are better suited for this since they can fulfill all the requirements and already have multiple groups for releasers/uploaders to upload files.