Commit Graph

117 Commits

Author SHA1 Message Date
Joshua Boniface 5f193a6134 Perform automatic shutdown/stop on VM disable
Instead of requiring the VM to already be stopped, instead allow disable
state changes to perform a shutdown first. Also add a force option which
will do a hard stop instead of a shutdown.

References #148
2021-11-06 03:57:24 -04:00
Joshua Boniface c41664d2da Reformat code with Black code formatter
Unify the code style along PEP and Black principles using the tool.
2021-11-06 03:02:43 -04:00
Joshua Boniface c0f7ba0125 Add limit negation to VM list
When using the "state", "node", or "tag" arguments to a VM list, add
support for a "negate" flag to look for all VMs *not in* the state,
node, or tag state.
2021-10-07 11:50:52 -04:00
Joshua Boniface 58db537093 Add memory and vCPU checks to VM define/modify
Ensures that a VM won't:

(a) Have provisioned more RAM than there is available on a given node.
Due to memory overprovisioning, this is simply a "is the VM memory count
more than the node count", and doesn't factor in free or used memory on
a node, total cluster usage, etc. So if a node has 64GB total RAM, the
VM limit is 64GB. It is up to an administrator to ensure sanity *below*
that value.

(b) Have provisioned more vCPUs than there are CPU cores on the node,
minus 2 to account for hypervisor/storage processes. Will ensure there
is no severe CPU contention caused by a single VM having more vCPUs than
there are actual execution threads available.

Closes #139
2021-09-13 01:51:21 -04:00
Joshua Boniface e962743e51 Add VM device hot attach/detach support
Adds a new API endpoint to support hot attach/detach of devices, and the
corresponding client-side logic to use this endpoint when doing VM
network/storage add/remove actions.

The live attach is now the default behaviour for these types of
additions and removals, and can be disabled if needed.

Closes #141
2021-09-12 19:33:00 -04:00
Joshua Boniface 75fb60b1b4 Add VM list filtering by tag
Uses same method as state or node filtering, rather than altering how
the main LIMIT field works.
2021-07-14 00:59:20 -04:00
Joshua Boniface 9ea9ac3b8a Revamp tag handling and display
Add an additional protected class, limit manipulation to one at a time,
and ensure future flexibility. Also makes display consistent with other
VM elements.
2021-07-13 22:39:52 -04:00
Joshua Boniface 9a199992a1 Add functions for manipulating VM tags
Adds tags to schema (v3), to VM definition, adds function to modify
tags, adds function to get tags, and adds tags to VM data output.

Tags will enable more granular classification of VMs based either on
administrator configuration or from automated system events.
2021-07-13 19:05:33 -04:00
Joshua Boniface 0699c48d10 Fix bad schema path name 2021-07-09 16:47:09 -04:00
Joshua Boniface 4832245d9c Handle non-RBD disks and non-RBD errors better 2021-07-09 15:48:57 -04:00
Joshua Boniface 2138f2f59f Fail VM removal on disk removal failures
Prevents bad states where the VM is "removed" but some of its disks
remain due to e.g. stuck watchers.

Rearrange the sequence so it goes stop, delete disks, then delete VM,
and then return a failure if any of the disk(s) fail to remove, allowing
the task to be rerun after fixing the problem.
2021-07-09 15:39:06 -04:00
Joshua Boniface c0c9327a7d Return an empty log if the value is None 2021-07-09 13:08:00 -04:00
Joshua Boniface 5ffabcfef5 Avoid failing if we can't get the future data 2021-07-09 13:05:37 -04:00
Joshua Boniface 58789f1db4 Move VM list assembly to thread pool
This helps parallelize the numerous Zookeeper calls a little bit, at
least within the bounds of the GIL, to improve performance when getting
a large list of VMs. The max_workers value is capped at 32 to avoid
causing too many threads during concurrent executions, but still
provides a noticeable speedup (on the order of 0.2-0.4 seconds with 75
VMs, scaling up further as counts grow).
2021-07-01 17:32:47 -04:00
Joshua Boniface f91c07fdcf Re-add UUID limit matching for full UUIDs
This *was* valuable when passing a full UUID in, so go back to that.
Verify first that the limit string is an actual UUID, and then compare
against it if applicable.
2021-06-28 12:27:43 -04:00
Joshua Boniface c54f66efa8 Limit match only on VM name
I can see no possible reason to want to do limits against UUIDs, but
supporting that means match is not what one would expect since a random
UUID could match the limit. So only limit based on the name.
2021-06-23 19:17:35 -04:00
Joshua Boniface cd860bae6b Optimize VM list in API
With many VMs this slows down linearly. Rework it a bit so there are
fewer calls to getInformationFromXML and so the processing could happen
in parallel at some point.
2021-06-23 19:14:26 -04:00
Joshua Boniface 07dbd55f03 Use list comprehension to compare against source 2021-06-22 02:31:14 -04:00
Joshua Boniface 6cd0ccf0ad Fix network check on VM config modification 2021-06-22 02:21:55 -04:00
Joshua Boniface 60e1da09dd Don't try any shenannegans when updating NICs
Trying to do this on the VMInstance side had problems because we can't
differentiate the 3 types of migration there. So, just update this in
the API side and hope everything goes well.

This introduces an edge bug: if a VM is using a macvtap SR-IOV device,
and then tries to migrate, and the migrate is aborted, the NIC lists
will be inconsistent.

When I revamp the VMInstance in the future, I should be able to correct
this, but for now we'll have to live with that edgecase.
2021-06-22 00:00:50 -04:00
Joshua Boniface dc560c1dcb Better handle retcodes in migrate update 2021-06-21 23:46:47 -04:00
Joshua Boniface 68c7481aa2 Ensure offline migrations update SR-IOV NIC states 2021-06-21 23:35:52 -04:00
Joshua Boniface 24ce361a04 Ensure SR-IOV NIC states are updated on migration 2021-06-21 23:18:34 -04:00
Joshua Boniface eeb83da97d Add support for SR-IOV NICs to VMs 2021-06-21 23:18:22 -04:00
Joshua Boniface ae79113f7c Correct key typo and add error handler 2021-06-13 15:49:30 -04:00
Joshua Boniface 059230d369 Convert vm.py to new ZK schema handler 2021-06-13 13:41:21 -04:00
Joshua Boniface 9be426507a Fix erroneous lock calls 2021-05-30 15:31:17 -04:00
Joshua Boniface b4f2cf879e Rework vm library for new zkhandler 2021-05-29 21:17:19 -04:00
Joshua Boniface f46c2e7f6a Implement VM rename functionality
Closes #125
2021-05-23 17:21:19 -04:00
Joshua Boniface 0bf276fd51 Update copyright year in headers 2021-03-25 17:01:55 -04:00
Joshua Boniface f4ec161aa2 Update file copyright header.
Remove the option to select a later version of the GPL.
2021-03-25 16:58:02 -04:00
Joshua Boniface 1b6613c280 Add live VNC information to domain output
Sets in the node daemon, returns via the API, and shows in the CLI,
information about the live VNC listen address and port for VNC-enabled
VMs.

Closes #115
2020-12-20 16:00:55 -05:00
Joshua Boniface 6912bd7a2a Add missing return statement for vm_modify 2020-11-08 00:57:13 -05:00
Joshua Boniface 0bf130077c Lint: W605 invalid escape sequence '<char>'
The previous attempt to correct these with character classes failed.
Instead, use the proper `r'blah'` regex formatting.
2020-11-07 17:41:09 -05:00
Joshua Boniface 3ed97d209f Revert "Lint: W605 invalid escape sequence '\^'"
This reverts commit 639937f9c2.
2020-11-07 17:39:34 -05:00
Joshua Boniface f33398458e Revert "Lint: W605 invalid escape sequence '\$'"
This reverts commit 76b1cafdcc.
2020-11-07 17:38:03 -05:00
Joshua Boniface 6f66b77a00 Lint: E121/E126 continuation line under/over-indented for hanging indent 2020-11-07 15:06:21 -05:00
Joshua Boniface 260b39ebf2 Lint: E302 expected 2 blank lines, found X 2020-11-07 14:45:24 -05:00
Joshua Boniface e9643651f7 Lint: F401 'daemon_lib.ansiprint' imported but unused
Removing further obsolete code from daemon-lib
2020-11-07 13:50:27 -05:00
Joshua Boniface 449f766a2c Lint: F821 undefined name 'zk_conn'
Actually removes these entire sections of dead code; the daemon-common
library does no formatting at all since it is no longer used by the CLI.
2020-11-07 13:45:26 -05:00
Joshua Boniface d2490419c5 Lint: E202 whitespace before ']' 2020-11-07 13:02:54 -05:00
Joshua Boniface 3f242cd437 Lint: E202 whitespace before '}' 2020-11-07 12:57:42 -05:00
Joshua Boniface b7daa8e1f6 E201 whitespace after '[' 2020-11-07 12:39:59 -05:00
Joshua Boniface e333f2b935 Lint: E201 whitespace after '{' 2020-11-07 12:38:31 -05:00
Joshua Boniface cb2defbde9 Lint: W391 blank line at end of file 2020-11-06 21:14:19 -05:00
Joshua Boniface 5da314902f Lint: F841 local variable '<variable>' is assigned to but never used 2020-11-06 21:13:13 -05:00
Joshua Boniface aecb845d6a Lint: E713 test for membership should be 'not in' 2020-11-06 20:37:52 -05:00
Joshua Boniface 72ae149cf1 Lint: E712 comparison to True should be 'if cond is True:' or 'if cond:' 2020-11-06 19:35:19 -05:00
Joshua Boniface 2d8f684fc8 Lint: E722 do not use bare 'except' (2) 2020-11-06 19:24:10 -05:00
Joshua Boniface d9e7b7ec15 Lint: F401 <library> imported but unused 2020-11-06 19:22:49 -05:00
Joshua Boniface ebf254f62d Lint: W293 blank line contains whitespace 2020-11-06 19:11:07 -05:00
Joshua Boniface 76b1cafdcc Lint: W605 invalid escape sequence '\$' 2020-11-06 19:01:22 -05:00
Joshua Boniface 639937f9c2 Lint: W605 invalid escape sequence '\^' 2020-11-06 18:59:30 -05:00
Joshua Boniface ec0b8acf90 Support per-VM migration type selectors
Allow a VM to specify its migration type as a default choice. The valid
options are "default" (i.e. behave as now), "live" which forces a live
migration only, and "shutdown" which forces a shutdown migration only.
The new option is treated as a VM meta option and is set to default if
not found.
2020-10-29 12:01:29 -04:00
Joshua Boniface d42bb74dc9 Use explicit acquire/release instead of with
The with blocks did not seem to work as expected. Go back to exclusive
locks as well since these are more consistent.
2020-10-21 11:38:23 -04:00
Joshua Boniface 88556f4a33 Convert from exclusive to write lock 2020-10-21 11:12:36 -04:00
Joshua Boniface 84ade53fae Add locks for VM state changes
Use exclusive locks during API events which change VM state. This is
fairly critical to avoid potential duplicate updates. Only implemented
for these specifically required functions to avoid major performance
hits elsewhere.
2020-10-21 10:40:00 -04:00
Joshua Boniface 142743b2c0 Fix erroneous comma 2020-08-05 10:34:30 -04:00
Joshua Boniface deaf138e45 Add stats to VM information 2020-06-07 00:42:11 -04:00
Joshua Boniface ce60836c34 Allow enforcement of live migration
Provides a CLI and API argument to force live migration, which triggers
a new VM state "migrate-live". The node daemon VMInstance during migrate
will read this flag from the state and, if enforced, will not trigger a
shutdown migration.

Closes #95
2020-06-06 12:00:44 -04:00
Joshua Boniface f61d443773 Allow move of migrated VM to current node
Will make the migrate permanent instead of throwing an error.

Fixes #96
2020-06-06 11:25:10 -04:00
Joshua Boniface 2d507f8b42 Ensure rbdlist is updated when modifying VM config 2020-05-12 11:08:47 -04:00
Joshua Boniface 6db4df51c0 Remove obsolete follow_console_log function 2020-02-19 10:19:49 -05:00
Joshua Boniface 5ddf72855b Clean up obsolete is_cli flags 2020-02-19 10:18:41 -05:00
Joshua Boniface 0e05ce8b07 Use correct wording of "shut down" 2020-02-19 10:04:58 -05:00
Joshua Boniface 07577a52a9 Implement wait support for various VM commands
Implements wait support for VM restart, shutdown, move, migrate, and
unmigrate commands, similar to node flush/node unflush.

Includes some additional refactoring of the move command to make its
operation identical to migrate, only without recording the previous
node.

References #72
2020-02-19 09:45:31 -05:00
Joshua Boniface 4505b239eb Rename API and common Debian packages
Closes #79
2020-02-08 18:50:38 -05:00