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Author SHA1 Message Date
Mahmood Ali 3da10b5cb3 scheduler: tests for multiple drivers in TG 2019-08-29 09:03:31 -04:00
Danielle Lancashire 3a5e48ad18
scheduler: Implicit constraint on readonly hostvol 
When a Client declares a volume is ReadOnly, we should only schedule it
for requests for ReadOnly volumes. This change means that if a host
exposes a readonly volume, we then validate that the group level
requests for the volume are all read only for that host.
 2019-08-21 20:57:05 +02:00
Danielle Lancashire e132a30899
structs: Unify Volume and VolumeRequest 2019-08-12 15:39:08 +02:00
Danielle Lancashire 073836ec67
scheduler: Add a feasability checker for Host Vols 2019-08-12 15:39:08 +02:00
Alex Dadgar 5198ff05c3 convert driver to device for device constraint/attributes 2019-01-23 10:58:45 -08:00
Danielle Tomlinson 9c72dafc95 scheduler: Add is_set/is_not_set constraints 
This adds constraints for asserting that a given attribute or value
exists, or does not exist. This acts as a companion to =, or !=
operators, e.g:

```hcl
constraint {
        attribute = "${attrs.type}"
        operator  = "!="
        value     = "database"
}

constraint {
        attribute = "${attrs.type}"
        operator  = "is_set"
}
```
 2018-11-15 11:00:32 -08:00
Danielle Tomlinson e5c641daa9 scheduler: Allow comparisons of nil values 
This commit allows the ConstraintChecker to test values that do not exist.
This is useful when wanting to _exclude_ given nodes from executing a
job, for example, if you wanted to give canary nodes an attribute, and
not run critical services on them, you may specify something like the
below, but not want to tag all other nodes with the inverse.

```hcl
constraint {
  attribute = "${node.attr.canary}
  operator = "!="
  value = "1"
}
```

This also requires all constraint checkers to allow for nil target
values, as they will no longer be short circuited by resolving a target.
 2018-11-13 13:36:51 -08:00
Alex Dadgar 6fa893c801 affinities 2018-11-07 10:32:03 -08:00
Alex Dadgar feb83a2be3 assign devices 2018-11-07 10:32:03 -08:00
Preetha Appan 53c3f8151b
fix linting 2018-10-16 18:29:49 -05:00
Alex Dadgar f5a76d8411 review comments 2018-10-15 15:31:13 -07:00
Alex Dadgar 7ecd65109a Check constraints on devices 2018-10-14 13:35:47 -07:00
Alex Dadgar 5284554fcc rework device checker 2018-10-13 16:47:53 -07:00
Alex Dadgar 1089e13b14 add to stack 2018-10-13 12:27:49 -07:00
Alex Dadgar 9b5aaac410 Device feasability checker 2018-10-13 12:27:49 -07:00
Preetha Appan dccb693221
test for setcontainsany, and treat set_contains same as set_contains_all 2018-09-04 16:10:11 -05:00
Preetha Appan 5eacd6ada4
Implement affinity support in generic scheduler 2018-09-04 16:10:11 -05:00
Chelsea Holland Komlo 329605b7cc fix up scheduling test 2018-03-21 15:54:03 -04:00
Chelsea Holland Komlo d92703617c simplify logic 
bump log level
 2018-03-21 15:15:26 -04:00
Chelsea Holland Komlo c7fd0bd8a1 fix up scheduler mocks 2018-03-21 15:15:25 -04:00
Chelsea Holland Komlo 3aa726baab fix scheduler driver name; create node structs file 2018-03-21 15:15:25 -04:00
Chelsea Holland Komlo 3cba95e8a7 allow nomad to schedule based on the status of a client driver health check 
Slight updates for go style
 2018-03-21 15:15:25 -04:00
Josh Soref ed8db9992e spelling: feasibility 2018-03-11 18:07:09 +00:00
Michael Schurter a66c53d45a Remove structs import from api 
Goes a step further and removes structs import from api's tests as well
by moving GenerateUUID to its own package.
 2017-09-29 10:36:08 -07:00
Alex Dadgar 4173834231 Enable more linters 2017-09-26 15:26:33 -07:00
Alex Dadgar 84d06f6abe Sync namespace changes 2017-09-07 17:04:21 -07:00
Alex Dadgar 2650bb1d12 Distinct Property supports arbitrary limit 
This PR enhances the distinct_property constraint such that a limit can
be specified in the RTarget/value parameter. This allows constraints
such as:

```
constraint {
  distinct_property = "${meta.rack}"
  value = "2"
}
```

This restricts any given rack from running more than 2 allocations from
the task group.

Fixes https://github.com/hashicorp/nomad/issues/1146
 2017-07-31 16:52:13 -07:00
Alex Dadgar 8169590d76 Fix tests 2017-05-01 13:54:26 -07:00
Alex Dadgar 60c42f745a Split distinct property and host iterator and add iterator to system stack 2017-03-08 19:00:10 -08:00
Alex Dadgar a439bf709d Property Set 2017-03-08 17:50:40 -08:00
Alex Dadgar d83a8fe9f2 Unoptimized implementation + testing 2017-03-07 14:48:54 -08:00
Alex Dadgar 989827e402 Add set contains 2016-10-19 13:06:28 -07:00
Alex Dadgar 2de9299cab ProposedAllocs dedups in-place updated allocations 2016-03-21 18:09:32 -07:00
Alex Dadgar 5018f5dd1e Only interpret vars wrapped in braces 2016-02-04 17:26:46 -08:00
Alex Dadgar 151fe5ed88 Make computed node class a string and add versioning 2016-01-31 18:04:45 -08:00
Alex Dadgar 9a8871249d EvalEligibility unit tests and simplify escaped constraint tracking 2016-01-26 17:34:41 -08:00
Alex Dadgar 9dc22532e5 Respond to comments 2016-01-26 16:43:42 -08:00
Alex Dadgar 1bd9bece62 Change the unique namespace on the node 2016-01-26 15:16:43 -08:00
Alex Dadgar 2b7d42bf9b FeasibilityWrapper uses computed node class eligibility to call feasibility checks minimally 2016-01-26 15:16:43 -08:00
Alex Dadgar 5d23025df8 EvalEligibility in context 2016-01-26 15:16:43 -08:00
Alex Dadgar 5e71751a1d Add node class to constraints 2015-12-21 17:15:34 -08:00
Alex Dadgar 3cdbfc010f Remove weight and hard/soft fields from constraint 2015-10-27 14:31:14 -07:00
Alex Dadgar 1784387e1d Rename Dynamic -> ProposedAllocConstraintIterator 2015-10-26 14:12:54 -07:00
Alex Dadgar fd9c2baf02 Constants for constraints and renaming to use undescore instead of camel 2015-10-26 13:47:56 -07:00
Alex Dadgar ecc4f98f3a Change "unique" to "distinctHosts" 2015-10-22 17:40:41 -07:00
Alex Dadgar 910dcc49fb DynamicConstraintIterator that implements the unique constraint 2015-10-22 14:31:12 -07:00
Alex Dadgar 406e135ce8 Add negative test to DriverIterator, increase system scheduler attempts, and fix evictAndPlace status message 2015-10-16 11:36:26 -07:00
Alex Dadgar 692efe513d Use valid driver values in test 2015-10-14 18:39:44 -07:00
Armon Dadgar 931a113cb5 scheduler: adding regexp and version constraint cache 2015-10-12 20:15:07 -07:00
Armon Dadgar 81c08ba66e scheduler: support lexical ordering constraints 2015-10-11 15:57:06 -04:00