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168 Commits

Author SHA1 Message Date
Joshua Boniface 47f86475f8 Handle failures of Ceph commands gradefully 
If these commands fail, catch the error, print a message, and set up
empty lists. Also handle later data parsing in this case.
 2019-07-09 16:43:38 -04:00
Joshua Boniface 1a8e7509f7 Support run_os_command timeout; use timeouts 2019-07-09 15:09:13 -04:00
Joshua Boniface 83a4140703 Allow enabling debug mode in config 
Makes debugging easier without modifying code.
 2019-07-09 14:59:00 -04:00
Joshua Boniface 8eeba9bc9b Make Ceph commands time out if needed 2019-07-09 14:35:53 -04:00
Joshua Boniface 19701c66e4 Move fencing to after keepalive output 
Just makes the messages a little easier to read when triggered.
 2019-07-09 14:24:31 -04:00
Joshua Boniface 17dfaf43c5 Move hypervisor selection out to common 2019-07-09 14:20:58 -04:00
Joshua Boniface b551b54642 Rename message when contending 2019-07-09 14:03:48 -04:00
Joshua Boniface 4249d5d982 Always load and store IPMI on daemon start 
Without this, the IPMI information set during initial node creation can
never be changed, which can cause issues later. Instead, always set it
fresh on each node boot.
 2019-07-09 14:00:31 -04:00
Joshua Boniface 7f828a27a5 Free RBD locks when fencing node 2019-07-09 10:59:31 -04:00
Joshua Boniface bc54ea2449 Log message when starting or stopping API client 2019-07-08 19:29:49 -04:00
Joshua Boniface cda690e94f Set RADOS df information in ZK 2019-07-08 10:19:56 -04:00
Joshua Boniface d9ebd04264 Fix missing dom_uuid values in data reads 2019-07-07 15:30:28 -04:00
Joshua Boniface b82ccaa84d Improve flush handling 
Similar to recent client changes, don't replace the previous node record
of an already-migrated VM. Wait for shutdown if required. Use a
continue statement instead of a needless else block.
 2019-07-07 15:27:37 -04:00
Joshua Boniface 0d398f663b Rename "Domain" to "VM" in various class names 
The name "Domain", though technically correct from a Libvirt
perspective, was unnecessarily confusing. Call the class instances what
they are, VMs.
 2019-07-07 15:20:37 -04:00
Joshua Boniface 8216125b02 Enable autostart of API client on Primary 
Adds a config flag that turns on the API client following the Primary
coordinator. The retcode of the start/stop commands is ignore so this
can fail gracefully if e.g. the client isn't installed.
 2019-07-06 02:42:56 -04:00
Joshua Boniface e6012965f1 Add YAML header to sample config files 2019-07-06 02:24:35 -04:00
Joshua Boniface 3e591bd09e Remove extra whitespaces on blank lines 2019-06-25 22:33:23 -04:00
Joshua Boniface 08cb16bfbc Revamp VM migration handling 
This was very old code that was hard to follow and quite fragile, with
failures and infinite loops occurring fairly frequently. These changes
make the code more robust, including the addition of timeouts, some code
cleanup, and some improvements to the logical flow.

Also forces the libvirt migration to occur on the cluster network, which
couples to changes in the libvirtd listen (via pvc-ansible) and in
Daemon.py via the previous commit.
 2019-06-25 22:23:48 -04:00
Joshua Boniface d336fce253 Connect to actual IP not localhost for Libvirt 2019-06-25 22:09:32 -04:00
Joshua Boniface 75d0e7f989 Revert "Only perform fencing duties on primary" 
This reverts commit 464c69aac6.

Actually, yea, this made sense - if the primary fails, it can't
fence itself.
 2019-06-25 12:36:48 -04:00
Joshua Boniface 85a5a8a0c9 Disable tx offloading on bridge interfaces 
Reference: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717215#68

Without this, DHCP fails when traversing only the local bridge, for
Debian Jessie or earlier (and possibly other OSes as well), due to the
missing UDP checksums. This disables the offload and hence reenables
the checksums even on the software-only bridge.

Also rearranged the steps and added comments arround this section to
better clarify what each command is doing.
 2019-06-25 12:36:37 -04:00
Joshua Boniface 464c69aac6 Only perform fencing duties on primary 
There was really no need for this to be shared among all the
coordinators, which seemed more fragile. This way only the primary will
try to fence dead nodes.
 2019-06-24 20:17:51 -04:00
Joshua Boniface 249611b161 Remove duplicate import 2019-06-24 20:14:43 -04:00
Joshua Boniface ef272b0b7d Add removal confirmations and zap disk before add 2019-06-21 15:52:28 -04:00
Joshua Boniface 867ad1fc1b Support human-readable biconversion and in volumes 2019-06-21 09:23:52 -04:00
Joshua Boniface ddedb1a992 Set image features to supported values 2019-06-19 15:19:36 -04:00
Joshua Boniface 0f15e7cda5 Set shutdown state after final keepalive 2019-06-19 14:52:47 -04:00
Joshua Boniface 0060c0313b Put daemonstate to shutdown when stopping 
This way it isn't "run" all the way until it shuts down.
 2019-06-19 14:23:07 -04:00
Joshua Boniface 9a0554fdbe Remove all volumes from pool on removal 
Technically not needed, but otherwise random errors may be thrown,
so best to be explicit.
 2019-06-19 12:49:03 -04:00
Joshua Boniface 87907d4ce8 Remove size field from volume objects 
This data is just in the stats anyways.
 2019-06-19 10:45:14 -04:00
Joshua Boniface 09562fdc06 Output in json format instead 2019-06-19 10:32:01 -04:00
Joshua Boniface a940d03959 Fix some bugs and add RBD volume stats 2019-06-19 10:25:22 -04:00
Joshua Boniface db0b382b3d Don't bother with snapshot management by Daemon 
This is *definitely* not needed in the end, and just uses RAM for
no conceivable purpose. Snapshots are fully client-managed.
 2019-06-19 09:43:04 -04:00
Joshua Boniface 1c9f606480 Implement volume and snapshot handling by daemon 
This seems like a super-gross way to do this, but at the moment
I don't have a better way. Maybe just remove this component since
none of the volume/snapshot stuff is dynamic; will see as this
progresses.
 2019-06-19 09:40:32 -04:00
Joshua Boniface 784b428ed0 Add creation of volume and snapshot lists 2019-06-19 09:29:36 -04:00
Joshua Boniface 064e6455bc Correct some more bugs 2019-06-19 00:29:21 -04:00
Joshua Boniface a4ab3075ab Correct some bugs around new code 2019-06-19 00:23:25 -04:00
Joshua Boniface 01959cb9e3 Implementation of RBD volumes and snapshots 
Adds the ability to manage RBD volumes (add/remove) and RBD
snapshots (add/remove). (Working) list functions to come.
 2019-06-19 00:12:44 -04:00
Joshua Boniface 2bbbda3da5 Only trigger pool updates on primary 2019-06-18 21:26:05 -04:00
Joshua Boniface 612f5ab52c Strip pv_block from stdout 2019-06-18 20:34:25 -04:00
Joshua Boniface 1622226c32 Add more logging during OSD creation/deletion 2019-06-18 20:31:04 -04:00
Joshua Boniface 3adeef6fdd Use the fsid to activate new OSDs 2019-06-18 20:22:28 -04:00
Joshua Boniface 443108f53d Add support for enable/disable keepalive detail 2019-06-18 19:54:42 -04:00
Joshua Boniface 79f284a0a9 Pass logger into run_command 2019-06-18 13:45:59 -04:00
Joshua Boniface 080ca3201c Correct actual problem with this_node 2019-06-18 13:43:54 -04:00
Joshua Boniface d076f9f4eb Use self.this_node everywhere 2019-06-18 13:25:16 -04:00
Joshua Boniface aee078f3eb Support disabling keepalive logging 2019-06-18 12:44:07 -04:00
Joshua Boniface b0411e8e1a Remove "error" message from Ceph commands 
This triggeres at every node start and isn't useful.
 2019-06-18 12:41:38 -04:00
Joshua Boniface 8d9007f697 Remove OSD stat collection if count is zero 
Otherwise, ceph osd df will hang indefinitely trying to get data
for the zero OSDs.
 2019-06-18 12:36:53 -04:00
Joshua Boniface 5a327dc41a Clean up Ceph pipeline and add more debug logs 2019-06-18 11:19:03 -04:00