These act as TFTP/DHCP/boot servers, but also host apt.wikimedia.org
- assign new IP addresses for replacement servers (private IPs, unlike before!)
- create Ganeti VMs
- install OS (buster) on new VMs
- create new puppet role for installserver minus APT repo (role::installserver::light)
- create new puppet role for APT repo minus DHCP/TFTP (role::apt_repo)
- apply both puppet roles and check/fix all errors (add buster support)
- rsync data APT repo data (done from install1002 to apt1001 and apt2001, added to cron jobs)
- switch DNS CNAME for webproxy / switch squids to buster
- switch DHCP_relay config on routers
- switch TFTP server IPs in DHCP config
- switch apt.wikimedia.org to the new backend apt1001 in DNS after making some tests
- install1002.wikimedia.org replaced with install1003.eqiad.wmnet in all config files
- install2002.wikimedia.org replaced with install2003.codfw.wmnet in all config files
- remove old servers from DNS and decom fully with cookbook