Commit Graph

26 Commits

Author SHA1 Message Date
Joshua Boniface e76832de91 Allow inter-cluster orphan NTP sync
Due to the requirement of Ceph to have all peer nodes tightly
synchronized with each other to come online, PVC nodes need a way to
synchronize to each other even in the absence of an external time
reference. This is especially prevalent if a set of nodes are left
offline for an extended period (>1-2 weeks), since their hardware clocks
will drift. If the resulting Internet connectivity is then dependent on
a VM, this will cause a catch-22 and the cluster will not properly
start.

This configuration will accomplish that - if no suitable >6 stratum
peers are found, the hosts will enter orphan mode. Since they are now
all configured as "peers" with each other, they will collectively decide
on one of them to become the source and sync to it. A local stratum 10
fudge is added so that at least one of the nodes can become this source.

While this is not an ideal use of NTP, it is by far the cleanest
solution to this problem, and does not impact normal functionality when
the two configured stratum-2 servers are reachable.
2021-05-19 11:03:18 -04:00
Joshua Boniface 7536732f30 Remove GRUB config from base role
This is not actually ideal.
2021-05-12 14:55:57 -04:00
Joshua Boniface 04bc9730a0 Fix version sorting bugs in kernel-cleanup.sh 2021-05-12 14:40:18 -04:00
Joshua Boniface 45322e0f9e Add additional items to base role
Backups, GRUB configuration, and IPMI configuration.
2021-05-12 13:53:15 -04:00
Joshua Boniface da9eafcdfa Fix sudoers to use conditional deploy_username 2021-04-13 16:50:05 -04:00
Joshua Boniface 70ba4b240f Allow configurable fail2ban IPs 2021-04-13 16:44:49 -04:00
Joshua Boniface 3819cd87fd Move to more dynamic apt configs
Allow specifying repository URLs in the group_vars, and add
release-specific template files to support future version changes.
2021-04-08 14:14:25 -04:00
Joshua Boniface 6589a9cd38 Add sensible sorting of kernel removals 2021-04-08 13:46:43 -04:00
Joshua Boniface ca3a5e144f Update tags and add kernel-cleanup script 2021-02-02 15:41:38 -05:00
Joshua Boniface fa0aeec88e Add local domain to resolver config 2021-01-28 13:34:26 -05:00
Joshua Boniface da8c357d38 Add PVC status MOTD script 2020-11-17 12:48:53 -05:00
Joshua Boniface 2edea75fbe Use generic Debian repos and PVC component 2020-08-26 12:16:39 -04:00
Joshua Boniface a0e4f3bd30 Improve SSH configuration for nodes
Ensure hostbased auth works with configs, remove erroneous old
conditional for authtypes, remove obsolete config option.
2020-08-06 15:56:01 -04:00
Joshua Boniface 6851d42885 Use Google DNS instead of Cloudflare
For some reason Cloudflare works in fewer places than Google, so just
use it instead.
2020-08-06 13:22:30 -04:00
Joshua Boniface 6b8232d38e Use cluster_group variable for paths
Instead of trying to automagic this group out of the Ansible hostvars,
just make it explicitly defined in the group_vars to avoid any
confusion.
2020-08-06 13:20:14 -04:00
Joshua Boniface c591b1e39f Include upstream and short names in hosts 2020-04-06 13:36:38 -04:00
Joshua Boniface 9b2e12e69b Add support for arbitrary /etc/hosts entries 2019-08-26 11:06:30 -04:00
Joshua Boniface 4217a92750 Allow sysrc triggers in nodes 2019-07-09 14:13:44 -04:00
Joshua Boniface a9b2942027 Add templating of network interfaces
Closes #1
2019-07-04 11:19:49 -04:00
Joshua Boniface 5dc3114ed6 Remove BLSE references 2019-06-24 12:55:52 -04:00
Joshua Boniface 553f7c92f9 Replace the square bracket with bracket 2019-06-18 10:59:31 -04:00
Joshua Boniface 0595a1bdd1 Don't use (broken) ansible_lsb 2019-06-17 23:05:51 -04:00
Joshua Boniface 05e0291493 Get NTP from real servers 2019-06-12 23:24:27 -04:00
Joshua Boniface 7f7c5fe3be Add hostsnames properly 2019-06-11 16:32:25 -04:00
Joshua Boniface 97d94fe3f2 Fix up some weird issues 2019-06-10 15:07:18 -04:00
Joshua Boniface 8ac0776a8e Initial commit of PVC Ansible role 2019-06-09 00:52:18 -04:00