Commit Graph

73 Commits

Author SHA1 Message Date
Joshua Boniface 73443ecbaf Update vm.py to allow API use 2019-05-20 22:15:28 -04:00
Joshua Boniface 31f252ad9b Implement domain log watching
Implements the ability for a client to watch almost-live domain
console logs from the hypervisors. It does this using a deque-based
"tail -f" mechanism (with a configurable buffer per-VM) that watches
the domain console logfile in the (configurable) directory every
half-second. It then stores the current buffer in Zookeeper when
changed, where a client can then request it, either as a static piece
of text in the `less` pager, or via a similar "tail -f" functionality
implemented using fixed line splitting and comparison to provide a
generally-seamless output.

Enabling this feature requires each guest VM to implement a Libvirt
serial log and write its (text) console to it, for example using the
default logging directory:

```
<serial type='pty'>
    <log file='/var/log/libvirt/vmname.log' append='off'/>
<serial>
```

The append mode can be either on or off; on grows files unbounded,
off causes the log (and hence the PVC log data) to be truncated on
initial VM startup from offline. The administrator must choose how
they best want to handle this until Libvirt implements their own
clog-type logging format.
2019-04-12 11:15:32 -04:00
Joshua Boniface 9f0d7c5bf8 Support VM list filtering by state 2019-03-20 11:31:54 -04:00
Joshua Boniface eec14ff177 Don't set unmigrated VMs to start 2019-03-20 10:19:01 -04:00
Joshua Boniface 15c832650d Don't block stopping on non-start state 2019-03-16 23:32:13 -04:00
Joshua Boniface 318a2353ea Fix missing format key on delete 2019-03-15 01:13:03 -04:00
Joshua Boniface df394c5c39 Handle regex in a more consistent way 2019-03-12 23:52:59 -04:00
Joshua Boniface 1180a4c88e Remove debug 2019-03-12 21:46:30 -04:00
Joshua Boniface abbc361520 Sort the names properly 2019-03-12 21:46:09 -04:00
Joshua Boniface d6b554e88e Move the output to a better place; 2019-03-12 21:40:52 -04:00
Joshua Boniface eb087a26e7 Deleted the wrong line 2019-03-12 21:39:17 -04:00
Joshua Boniface 2e187ae032 But sort it right 2019-03-12 21:38:22 -04:00
Joshua Boniface 717e518deb List names instead of UUIDs 2019-03-12 21:35:33 -04:00
Joshua Boniface c4a97f04a7 Support raw VM listing 2019-03-12 21:30:01 -04:00
Joshua Boniface 081d855a03 Allow dumping of VMs 2019-03-12 21:09:54 -04:00
Joshua Boniface f0030ee5ed Handle network printing with cluster net 2018-11-18 17:57:58 -05:00
Joshua Boniface 720469d389 Standardize the layout of lists (dynamic fields) 2018-11-02 00:42:44 -04:00
Joshua Boniface 2c2208ab07 Tweak some output formatting in lists 2018-11-01 23:24:38 -04:00
Joshua Boniface 2b115160a2 Use zkhandler for everything; add delete operation 2018-10-27 15:51:52 -04:00
Joshua Boniface 2de65e514f Add missing common call 2018-10-21 22:10:05 -04:00
Joshua Boniface 05af23064f Fix name of "ansiiprint" since it's "ANSI" 2018-10-20 15:28:25 -04:00
Joshua Boniface a3f7419124 Handle colouring of network lists when a network is invalid 2018-10-20 15:27:07 -04:00
Joshua Boniface f198f62563 Massive rejigger into single daemon
Completely restructure the daemon code to move the 4 discrete daemons
into a single daemon that can be run on every hypervisor. Introduce the
idea of a static list of "coordinator" nodes which are configured at
install time to run Zookeeper and FRR in router mode, and which are
allowed to take on client network management duties (gateway, DHCP, DNS,
etc.) while also allowing them to run VMs (i.e. no dedicated "router"
nodes required).
2018-10-14 02:40:54 -04:00