Commit Graph

1800 Commits

Author SHA1 Message Date
Joshua Boniface fd4f033a04 Update return from initialize 2019-12-23 20:51:18 -05:00
Joshua Boniface 9076208a92 Fix missing code end block 2019-12-23 20:47:01 -05:00
Joshua Boniface e6a8ed0734 Replace in-markdown API docs with Swagger 2019-12-23 20:45:30 -05:00
Joshua Boniface a6683d5b17 Rebuild API using Flask-RESTful and Swagger docs 2019-12-23 20:43:20 -05:00
Joshua Boniface 91cb542e37 Make sure ACLs are name-unique in both directions 2019-12-22 22:33:26 -05:00
Joshua Boniface 66078223a4 Fix several bugs 2019-12-22 22:28:34 -05:00
Joshua Boniface de8c79755b Add documentation about the provisioner API 2019-12-19 23:44:10 -05:00
Joshua Boniface eecc07b731 Depend daemons on systemd
Numerous parts of PVC call systemctl commands or otherwise require a
functioning systemd-based system. Make the dependencies explicitly
reflect this.
2019-12-19 19:04:25 -05:00
Joshua Boniface a66b834ae4 Fix several small bugs 2019-12-19 18:58:53 -05:00
Joshua Boniface b17b7bf22b Add black magic to minimize ping losses
This particular arping interval/count, along with forcing it to run in
the foreground, seems to minimize the packet loss when the primary
coordinator transitions. Through extensive testing, this value results
in the, consistently, least amount of loss: 1-2 pings, at an 0.025s ping
interval, return "TTL exceeded", with no other loss, and only when the
node the test VM is on is the one switching to secondary state. No other
combination of values here, nor tweaks to other parts of the code, seem
able to reduce this further, therefore this is likely the best
configuration possible.
2019-12-19 18:57:32 -05:00
Joshua Boniface 2fe808f812 Make this even nicer 2019-12-19 13:29:15 -05:00
Joshua Boniface 7901ffb5e3 Handle the list of node_limits even better 2019-12-19 13:22:38 -05:00
Joshua Boniface 684499cce3 Better handle list elements when defining VM 2019-12-19 12:08:44 -05:00
Joshua Boniface 796fa4692f Pass remaining required args to vm_define 2019-12-19 11:53:24 -05:00
Joshua Boniface 78089afb4e Remove spurious argument to vm_define 2019-12-19 11:43:59 -05:00
Joshua Boniface 2d14fabe62 Don't throw exception while defining new VM
This would throw an exception since we tried to find the current host of
a VM that did not exist yet. If this happens, just get None.
2019-12-19 11:30:13 -05:00
Joshua Boniface 8c252aeecc Implemented coordinated locked node transitions
The previous method was a "throw it in the sea"-type migration with some
(very arbitrary) sleep statements thrown in for good measure.
Reimplement this with some hard locking. During each phase of the
transition, the nodes acquire read/write shared locks to a Zookeeper key
so that they can tightly coordinate the actions of transferring each
part of the primary state between them. This is done in a subthread to
prevent strange blocking issues that were encountered, likely due to
business in the existing main thread.
2019-12-19 10:56:34 -05:00
Joshua Boniface 0841ddf8b0 Handle integrity errors in DNS aggregator 2019-12-19 10:45:06 -05:00
Joshua Boniface 98764f1edd Clean up some aspects of node switchover 2019-12-18 21:39:40 -05:00
Joshua Boniface 23188199cb Handle failing Patroni events more gracefully 2019-12-18 21:12:22 -05:00
Joshua Boniface 669a8fbacd Clean up pycache files before (re)installing 2019-12-18 18:39:03 -05:00
Joshua Boniface 2b1b78622e Fix invalid arping option
It made little difference and didn't error, but was incorrect.
2019-12-18 12:06:40 -05:00
Joshua Boniface 5eec3e99f8 Lower delay during build-and-deploy 2019-12-18 11:56:50 -05:00
Joshua Boniface 355e16e23a Add missing dependencies 2019-12-18 11:56:22 -05:00
Joshua Boniface 364ab10673 Add slight delay when stopping the metadata API 2019-12-18 11:56:04 -05:00
Joshua Boniface 39c9f911cc Increase arping interval to 0.2s 2019-12-15 14:55:34 -05:00
Joshua Boniface 2b5c134970 Add missing distutils dep 2019-12-15 13:53:22 -05:00
Joshua Boniface 686af31c08 Reduce arping interval to 0.1s 2019-12-15 12:30:45 -05:00
Joshua Boniface 0a94fac407 Fix bugs around passing master
Was not passing properly and getting stuck sometimes, so modify the
checking and route creation a bit to prevent it. Seems to work.
2019-12-15 00:08:18 -05:00
Joshua Boniface 8202d7e64b Make output a little nicer 2019-12-14 16:56:33 -05:00
Joshua Boniface 292c2d9a44 Install newly moved schema file 2019-12-14 16:52:09 -05:00
Joshua Boniface 41479edc3d Remove separated provisioner 2019-12-14 16:47:46 -05:00
Joshua Boniface a2b30158f8 Move schema file 2019-12-14 16:47:32 -05:00
Joshua Boniface b3e21a5bf8 Integrate metadata API into node daemon 2019-12-14 16:41:01 -05:00
Joshua Boniface 8c36e7618a Modify node daemon to follow API 2019-12-14 14:13:26 -05:00
Joshua Boniface 0727a7f6ed Move all provisioner API functionality into main 2019-12-14 14:12:55 -05:00
Joshua Boniface 45dbc0eef8 Merge branch 'provisioner' into 'master'
Implement Provisioner daemon

Closes #56 and #22

See merge request parallelvirtualcluster/pvc!1
2019-12-13 15:05:57 -05:00
Joshua Boniface c0757405bc Increase delay in deploy 2019-12-13 00:06:37 -05:00
Joshua Boniface 78f053d81f Recreate network in aggregator if DNS changes 2019-12-13 00:03:47 -05:00
Joshua Boniface 0a8dd30a48 Restart dnsmasq when network details change 2019-12-12 23:51:22 -05:00
Joshua Boniface 6fa828e721 Don't stop the provisioner worker
It should probably just be running on all nodes all the time already,
but is started when a node first becomes primary.
2019-12-12 23:08:02 -05:00
Joshua Boniface c1b6ce0ff7 Reorder starting clients 2019-12-12 23:03:34 -05:00
Joshua Boniface b854d53fab Add API management to node daemon 2019-12-12 22:59:07 -05:00
Joshua Boniface 22ae087836 Add examples to deb install 2019-12-12 22:52:12 -05:00
Joshua Boniface f5fb741dad Unify the APIs 2019-12-12 22:50:42 -05:00
Joshua Boniface c91c9ae6d5 Fix formatting of node_limit when writing 2019-12-12 21:36:21 -05:00
Joshua Boniface fff44ab44e Make node limit output nicer 2019-12-12 20:52:56 -05:00
Joshua Boniface 708de48065 Finish the provisioner and metadata server 2019-12-12 19:41:23 -05:00
Joshua Boniface 88924497c2 Define with profile and allow options 2019-12-11 17:05:05 -05:00
Joshua Boniface 88a181b20d Allow metadata API in nft rules 2019-12-11 17:04:29 -05:00