Commit graph

259 commits

Author SHA1 Message Date
Drew Bailey 007158ee75
ignore setting job summary when oldstatus == newstatus (#9884) 2021-01-25 10:34:27 -05:00
Drew Bailey 630babb886
prevent double job status update (#9768)
* Prevent Job Statuses from being calculated twice

https://github.com/hashicorp/nomad/pull/8435 introduced atomic eval
insertion iwth job (de-)registration. This change removes a now obsolete
guard which checked if the index was equal to the job.CreateIndex, which
would empty the status. Now that the job regisration eval insetion is
atomic with the registration this check is no longer necessary to set
the job statuses correctly.

* test to ensure only single job event for job register

* periodic e2e

* separate job update summary step

* fix updatejobstability to use copy instead of modified reference of job

* update envoygatewaybindaddresses copy to prevent job diff on null vs empty

* set ConsulGatewayBindAddress to empty map instead of nil

fix nil assertions for empty map

rm unnecessary guard
2021-01-22 09:18:17 -05:00
Drew Bailey 9adca240f8
Event Stream: Track ACL changes, unsubscribe on invalidating changes (#9447)
* upsertaclpolicies

* delete acl policies msgtype

* upsert acl policies msgtype

* delete acl tokens msgtype

* acl bootstrap msgtype

wip unsubscribe on token delete

test that subscriptions are closed after an ACL token has been deleted

Start writing policyupdated test

* update test to use before/after policy

* add SubscribeWithACLCheck to run acl checks on subscribe

* update rpc endpoint to use broker acl check

* Add and use subscriptions.closeSubscriptionFunc

This fixes the issue of not being able to defer unlocking the mutex on
the event broker in the for loop.

handle acl policy updates

* rpc endpoint test for terminating acl change

* add comments

Co-authored-by: Kris Hicks <khicks@hashicorp.com>
2020-12-01 11:11:34 -05:00
Drew Bailey a0b7f05a7b
Remove Managed Sinks from Nomad (#9470)
* Remove Managed Sinks from Nomad

Managed Sinks were a beta feature in Nomad 1.0-beta2. During the beta
period it was determined that this was not a scalable approach to
support community and third party sinks.

* update comment

* changelog
2020-11-30 14:00:31 -05:00
Tim Gross b2cd0da0a2
CSI: fix transaction handling in state store (#9438)
When making updates to CSI plugins, the state store methods that have open
write transactions were querying the state store using the same methods used
by the CSI RPC endpoint, but these method creates their own top-level read
transactions. During concurrent plugin updates (as happens when a plugin job
is stopped), this can cause write skew in the plugin counts.

* Refactor the CSIPlugin query methods to have an implementation method that
accepts a transaction, which can be called with either a read txn or a write
txn.
* Refactor the CSIVolume query methods to have an implementation method that
accepts a transaction, which can be called with either a read txn or a write
txn.
* CSI volumes need to be "denormalized" with their plugins and (optionally)
allocations. Read-only RPC endpoints should take a snapshot so that we can
make multiple state store method calls with a consistent view.
2020-11-25 11:15:57 -05:00
Tim Gross 60874ebe25
csi: Postrun hook should not change mode (#9323)
The unpublish workflow requires that we know the mode (RW vs RO) if we want to
unpublish the node. Update the hook and the Unpublish RPC so that we mark the
claim for release in a new state but leave the mode alone. This fixes a bug
where RO claims were failing node unpublish.

The core job GC doesn't know the mode, but we don't need it for that workflow,
so add a mode specifically for GC; the volumewatcher uses this as a sentinel
to check whether claims (with their specific RW vs RO modes) need to be claimed.
2020-11-11 13:06:30 -05:00
Chris Baker 53aa5e75c9 fix #9227: use both job and type query on scaling policy list endpoint 2020-11-10 23:26:35 +00:00
Chris Baker 719077a26d added new policy capabilities for recommendations API
state store: call-out to generic update of job recommendations from job update method
recommendations API work, and http endpoint errors for OSS
support for scaling polices in task block of job spec
add query filters for ScalingPolicy list endpoint
command: nomad scaling policy list: added -job and -type
2020-10-28 14:32:16 +00:00
Drew Bailey 86080e25a9
Send events to EventSinks (#9171)
* Process to send events to configured sinks

This PR adds a SinkManager to a server which is responsible for managing
managed sinks. Managed sinks subscribe to the event broker and send
events to a sink writer (webhook). When changes to the eventstore are
made the sinkmanager and managed sink are responsible for reloading or
starting a new managed sink.

* periodically check in sink progress to raft

Save progress on the last successfully sent index to raft. This allows a
managed sink to resume close to where it left off in the event of a lost
server or leadership change

dereference eventsink so we can accurately use the watchch

When using a pointer to eventsink struct it was updated immediately and our reload logic would not trigger
2020-10-26 17:27:54 -04:00
Drew Bailey 1ae39a9ed9
event sink crud operation api (#9155)
* network sink rpc/api plumbing

state store methods and restore

upsert sink test

get sink

delete sink

event sink list and tests

go generate new msg types

validate sink on upsert

* go generate
2020-10-23 14:23:00 -04:00
Drew Bailey 6c788fdccd
Events/msgtype cleanup (#9117)
* use msgtype in upsert node

adds message type to signature for upsert node, update tests, remove placeholder method

* UpsertAllocs msg type test setup

* use upsertallocs with msg type in signature

update test usage of delete node

delete placeholder msgtype method

* add msgtype to upsert evals signature, update test call sites with test setup msg type

handle snapshot upsert eval outside of FSM and ignore eval event

remove placeholder upsertevalsmsgtype

handle job plan rpc and prevent event creation for plan

msgtype cleanup upsertnodeevents

updatenodedrain msgtype

msg type 0 is a node registration event, so set the default  to the ignore type

* fix named import

* fix signature ordering on upsertnode to match
2020-10-19 09:30:15 -04:00
Drew Bailey c463479848
filter on additional filter keys, remove switch statement duplication
properly wire up durable event count

move newline responsibility

moves newline creation from NDJson to the http handler, json stream only encodes and sends now

ignore snapshot restore if broker is disabled

enable dev mode to access event steam without acl

use mapping instead of switch

use pointers for config sizes, remove unused ttl, simplify closed conn logic
2020-10-14 14:14:33 -04:00
Drew Bailey df96b89958
Add EvictCallbackFn to handle removing entries from go-memdb when they
are removed from the event buffer.

Wire up event buffer size config, use pointers for structs.Events
instead of copying.
2020-10-14 12:44:42 -04:00
Drew Bailey 9d48818eb8
writetxn can return error, add alloc and job generic events. Add events
table for durability
2020-10-14 12:44:39 -04:00
Drew Bailey 400455d302
Events/eval alloc events (#9012)
* generic eval update event

first pass at alloc client update events

* api/event client
2020-10-14 12:44:37 -04:00
Drew Bailey 4793bb4e01
Events/deployment events (#9004)
* Node Drain events and Node Events (#8980)

Deployment status updates

handle deployment status updates (paused, failed, resume)

deployment alloc health

generate events from apply plan result

txn err check, slim down deployment event

one ndjson line per index

* consolidate down to node event + type

* fix UpdateDeploymentAllocHealth test invocations

* fix test
2020-10-14 12:44:37 -04:00
Luiz Aoqui 88d4eecfd0
add scaling policy type 2020-09-29 17:57:46 -04:00
Drew Bailey 28aa0387e9
remove node events for state track changing pr
remove Txn and update calls with ReadTxn()

constructor for changetrackerdb
2020-09-04 10:23:35 -04:00
Drew Bailey 0af749c92e
Transaction change tracking
This commit wraps memdb.DB with a changeTrackerDB, which is a thin
wrapper around memdb.DB which enables go-memdb's TrackChanges on all write
transactions. When the transaction is comitted the changes are sent to
an eventPublisher which will be used to create and emit change events.

debugging TestFSM_ReconcileSummaries

wip

revert back rebase

revert back rebase

fix snapshot to actually use a snapshot
2020-09-01 10:27:20 -04:00
Lang Martin 7d483f93c0
csi: plugins track jobs in addition to allocations, and use job information to set expected counts (#8699)
* nomad/structs/csi: add explicit job support
* nomad/state/state_store: capture job updates directly
* api/nodes: CSIInfo needs the AllocID
* command/agent/csi_endpoint: AllocID was missing
Co-authored-by: Tim Gross <tgross@hashicorp.com>
2020-08-27 17:20:00 -04:00
Chris Baker 655cbb4d3c documenting tests for prefix bugs around job scaling policies 2020-08-27 03:22:13 +00:00
Lars Lehtonen f8a42f587f
nomad/state: fix dropped scaling_policy test errors 2020-08-07 23:05:33 -07:00
Tim Gross 23be116da0
csi: add -force flag to volume deregister (#8295)
The `nomad volume deregister` command currently returns an error if the volume
has any claims, but in cases where the claims can't be dropped because of
plugin errors, providing a `-force` flag gives the operator an escape hatch.

If the volume has no allocations or if they are all terminal, this flag
deletes the volume from the state store, immediately and implicitly dropping
all claims without further CSI RPCs. Note that this will not also
unmount/detach the volume, which we'll make the responsibility of a separate
`nomad volume detach` command.
2020-07-01 12:17:51 -04:00
Drew Bailey 01e2cc5054
allow ClusterMetadata to accept a watchset (#8299)
* allow ClusterMetadata to accept a watchset

* use nil instead of empty watchset
2020-06-26 13:23:32 -04:00
Tim Gross ce86a594a6
csi: fix plugin counts on node update (#7844)
In this changeset:

* If a Nomad client node is running both a controller and a node
  plugin (which is a common case), then if only the controller or the
  node is removed, the plugin was not being updated with the correct
  counts.
* The existing test for plugin cleanup didn't go back to the state
  store, which normally is ok but is complicated in this case by
  denormalization which changes the behavior. This commit makes the
  test more comprehensive.
* Set "controller required" when plugin has `PUBLISH_READONLY`. All
  known controllers that support `PUBLISH_READONLY` also support
  `PUBLISH_UNPUBLISH_VOLUME` but we shouldn't assume this.
* Only create plugins when the allocs for those plugins are
  healthy. If we allow a plugin to be created for the first time when
  the alloc is not healthy, then we'll recreate deleted plugins when
  the job's allocs all get marked terminal.
* Terminal plugin alloc updates should cleanup the plugin. The client
  fingerprint can't tell if the plugin is unhealthy intentionally (for
  the case of updates or job stop). Allocations that are
  server-terminal should delete themselves from the plugin and trigger
  a plugin self-GC, the same as an unused node.
2020-05-05 15:39:57 -04:00
Tim Gross 52e805a6a6
csi: ensure Read/WriteAllocs aren't released early (#7841)
We should only remove the `ReadAllocs`/`WriteAllocs` values for a
volume after the claim has entered the "ready to free"
state. The volume will eventually be released as expected. But
querying the volume API will show the volume is released before the
controller unpublish has finished and this can cause a race with
starting new jobs.

Test updates are to cover cases where we're dropping claims but not
running through the whole reaping process.
2020-04-30 17:11:31 -04:00
Tim Gross 083b35d651
csi: checkpoint volume claim garbage collection (#7782)
Adds a `CSIVolumeClaim` type to be tracked as current and past claims
on a volume. Allows for a client RPC failure during node or controller
detachment without having to keep the allocation around after the
first garbage collection eval.

This changeset lays groundwork for moving the actual detachment RPCs
into a volume watching loop outside the GC eval.
2020-04-23 11:06:23 -04:00
Chris Baker 09d980be2b modify state store so that autoscaling policies are deleted from their
table as job is stopped (and recreated when job is started)
2020-04-21 23:01:26 +00:00
Lang Martin 24449e23af
csi: volume validate namespace (#7587)
* nomad/state/state_store: enforce that the volume namespace exists

* nomad/csi_endpoint_test: a couple of broken namespaces now

* nomad/csi_endpoint_test: one more test

* nomad/node_endpoint_test: use structs.DefaultNamespace

* nomad/state/state_store_test: use DefaultNamespace
2020-04-02 10:13:41 -04:00
Chris Baker 8ec252e627 added indices to the job scaling events, so we could properly do
blocking queries on the job scaling status
2020-04-01 17:28:19 +00:00
Chris Baker 40d6b3bbd1 adding raft and state_store support to track job scaling events
updated ScalingEvent API to record "message string,error bool" instead
of confusing "reason,error *string"
2020-04-01 16:15:14 +00:00
Lang Martin e03c328792
csi: use node MaxVolumes during scheduling (#7565)
* nomad/state/state_store: CSIVolumesByNodeID ignores namespace

* scheduler/scheduler: add CSIVolumesByNodeID to the state interface

* scheduler/feasible: check node MaxVolumes

* nomad/csi_endpoint: no namespace inn CSIVolumesByNodeID anymore

* nomad/state/state_store: avoid DenormalizeAllocationSlice

* nomad/state/iterator: clean up SliceIterator Next

* scheduler/feasible_test: block with MaxVolumes

* nomad/state/state_store_test: fix args to CSIVolumesByNodeID
2020-03-31 17:16:47 -04:00
Tim Gross 54b3573fc9
state: support snapshot of CSI plugin and volume tables (#7546)
The `csi_plugins` and `csi_volumes` tables were missing support for
snapshot persist and restore. This means restoring a snapshot would
result in missing information for CSI.
2020-03-30 11:17:16 -04:00
Chris Baker d6287c43b9 clean up some tests 2020-03-29 23:38:36 +00:00
Chris Baker 5e3c38be2f state_store:
* added method to retrieve all scaling policies for use in snapshotting, plus test
* better testing for ScalingPoliciesByNamespace
* added scaling policy snapshot persist and restore (and test of restore)

manually tested snapshot restore.

resolves #7539
2020-03-29 13:32:44 +00:00
Lang Martin 50ff9ccd44
csi: plugin deregistration on plugin job GC (#7502)
* nomad/structs/csi: delete just one plugin type from a node

* nomad/structs/csi: add DeleteAlloc

* nomad/state/state_store: add deleteJobFromPlugin

* nomad/state/state_store: use DeleteAlloc not DeleteNodeType

* move CreateTestCSIPlugin to state to avoid an import cycle

* nomad/state/state_store_test: delete a plugin by deleting its jobs

* nomad/*_test: move CreateTestCSIPlugin to state

* nomad/state/state_store: update one plugin per transaction

* command/plugin_status_test: move CreateTestCSIPlugin

* nomad: csi: handle nils CSIPlugin methods, clarity
2020-03-26 17:07:18 -04:00
Lang Martin 3375c92aa0
csi: make volume registration idempotent (#7490)
If not in use and not changing external ids, it should not be an error to register a volume again.

* nomad/state/state_store: make volume registration idempotent
2020-03-26 12:27:19 -04:00
Lang Martin ea80330aaa
csi: nomad/structs: test volume denormalize without plugin (#7472) 2020-03-26 09:43:59 -04:00
Mahmood Ali 281fc9837c tests: relax index checks
TestStateStore_Indexes specifically tests for `nodes` index, but asserts
on the exact number of indexes present in the state.  This is fragile
and will break almost everytime we add a state index.
2020-03-25 08:45:38 -04:00
Tim Gross 913da68296
csi: remove client from plugin on client node update (#7462)
Plugins track the client nodes where they are placed. On client
updates, remove the client from the plugin tracking if the client is
no longer running an instance of that controller/node plugin.

Extends the state store tests to ensure deregistration works as
expected and that controllers and nodes are being tracked
independently.
2020-03-24 13:26:31 -04:00
Chris Baker 9e530e167d
Merge pull request #7409 from hashicorp/scaling-api
Scaling API changes
2020-03-24 11:02:09 -05:00
Lang Martin bd22afd003
csi: volume deregister fails for volumes actively in use (#7445)
* nomad/structs/csi: add InUse to CSIVolume

* nomad/state/state_store: block volume deregistration for in use vols
2020-03-24 10:10:44 -04:00
Chris Baker abc7a52f56 finished refactoring state store, schema, etc 2020-03-24 13:57:14 +00:00
Chris Baker 6665d0bfb0 wip: added policy get endpoint, added UUID to policy 2020-03-24 13:55:20 +00:00
Chris Baker 9c2560ceeb wip: upsert/delete scaling policies on job upsert/delete 2020-03-24 13:55:18 +00:00
Chris Baker 65d92f1fbf WIP: adding ScalingPolicy to api/structs and state store 2020-03-24 13:55:18 +00:00
Lang Martin d994990ef0
csi: the scheduler allows a job with a volume write claim to be updated (#7438)
* nomad/structs/csi: split CanWrite into health, in use

* scheduler/scheduler: expose AllocByID in the state interface

* nomad/state/state_store_test

* scheduler/stack: SetJobID on the matcher

* scheduler/feasible: when a volume writer is in use, check if it's us

* scheduler/feasible: remove SetJob

* nomad/state/state_store: denormalize allocs before Claim

* nomad/structs/csi: return errors on claim, with context

* nomad/csi_endpoint_test: new alloc doesn't look like an update

* nomad/state/state_store_test: change test reference to CanWrite
2020-03-23 21:21:04 -04:00
Lang Martin 3621df1dbf csi: volume ids are only unique per namespace (#7358)
* nomad/state/schema: use the namespace compound index

* scheduler/scheduler: CSIVolumeByID interface signature namespace

* scheduler/stack: SetJob on CSIVolumeChecker to capture namespace

* scheduler/feasible: pass the captured namespace to CSIVolumeByID

* nomad/state/state_store: use namespace in csi_volume index

* nomad/fsm: pass namespace to CSIVolumeDeregister & Claim

* nomad/core_sched: pass the namespace in volumeClaimReap

* nomad/node_endpoint_test: namespaces in Claim testing

* nomad/csi_endpoint: pass RequestNamespace to state.*

* nomad/csi_endpoint_test: appropriately failed test

* command/alloc_status_test: appropriately failed test

* node_endpoint_test: avoid notTheNamespace for the job

* scheduler/feasible_test: call SetJob to capture the namespace

* nomad/csi_endpoint: ACL check the req namespace, query by namespace

* nomad/state/state_store: remove deregister namespace check

* nomad/state/state_store: remove unused CSIVolumes

* scheduler/feasible: CSIVolumeChecker SetJob -> SetNamespace

* nomad/csi_endpoint: ACL check

* nomad/state/state_store_test: remove call to state.CSIVolumes

* nomad/core_sched_test: job namespace match so claim gc works
2020-03-23 13:59:25 -04:00
Lang Martin 80619137ab csi: volumes listed in nomad node status (#7318)
* api/allocations: GetTaskGroup finds the taskgroup struct

* command/node_status: display CSI volume names

* nomad/state/state_store: new CSIVolumesByNodeID

* nomad/state/iterator: new SliceIterator type implements memdb.ResultIterator

* nomad/csi_endpoint: deal with a slice of volumes

* nomad/state/state_store: CSIVolumesByNodeID return a SliceIterator

* nomad/structs/csi: CSIVolumeListRequest takes a NodeID

* nomad/csi_endpoint: use the return iterator

* command/agent/csi_endpoint: parse query params for CSIVolumes.List

* api/nodes: new CSIVolumes to list volumes by node

* command/node_status: use the new list endpoint to print volumes

* nomad/state/state_store: error messages consider the operator

* command/node_status: include the Provider
2020-03-23 13:58:30 -04:00
Tim Gross b04d23dae0 csi: ensure volume query is idempotent (#7303)
We denormalize the `CSIVolume` struct when we query it from the state
store by getting the plugin and its health. But unless we copy the
volume, this denormalization gets synced back to the state store
without passing through the fsm (which is invalid).
2020-03-23 13:58:30 -04:00