Commit Graph

1378 Commits

Author SHA1 Message Date
James Rasell 0e926ef3fd
allow configuration of Docker hostnames in bridge mode (#11173)
Add a new hostname string parameter to the network block which
allows operators to specify the hostname of the network namespace.
Changing this causes a destructive update to the allocation and it
is omitted if empty from API responses. This parameter also supports
interpolation.

In order to have a hostname passed as a configuration param when
creating an allocation network, the CreateNetwork func of the
DriverNetworkManager interface needs to be updated. In order to
minimize the disruption of future changes, rather than add another
string func arg, the function now accepts a request struct along with
the allocID param. The struct has the hostname as a field.

The in-tree implementations of DriverNetworkManager.CreateNetwork
have been modified to account for the function signature change.
In updating for the change, the enhancement of adding hostnames to
network namespaces has also been added to the Docker driver, whilst
the default Linux manager does not current implement it.
2021-09-16 08:13:09 +02:00
Aleksandr Zagaevskiy ebb87e65fe Support configurable dynamic port range 2021-09-10 11:52:47 +03:00
James Rasell b6813f1221
chore: fix incorrect docstring formatting. 2021-08-30 11:08:12 +02:00
Mahmood Ali 84a3522133
Consider all system jobs for a new node (#11054)
When a node becomes ready, create an eval for all system jobs across
namespaces.

The previous code uses `job.ID` to deduplicate evals, but that ignores
the job namespace. Thus if there are multiple jobs in different
namespaces sharing the same ID/Name, only one will be considered for
running in the new node. Thus, Nomad may skip running some system jobs
in that node.
2021-08-18 09:50:37 -04:00
Mahmood Ali c37339a8c8
Merge pull request #9160 from hashicorp/f-sysbatch
core: implement system batch scheduler
2021-08-16 09:30:24 -04:00
Mahmood Ali bfc766357e
deployments: canary=0 is implicitly autopromote (#11013)
In a multi-task-group job, treat 0 canary groups as auto-promote.

This change fixes an edge case where Nomad requires a manual promotion,
if the job had any group with canary=0 and rest of groups having
auto_promote set.

Co-authored-by: Michael Schurter <mschurter@hashicorp.com>
2021-08-10 17:06:40 -04:00
Seth Hoenig 3371214431 core: implement system batch scheduler
This PR implements a new "System Batch" scheduler type. Jobs can
make use of this new scheduler by setting their type to 'sysbatch'.

Like the name implies, sysbatch can be thought of as a hybrid between
system and batch jobs - it is for running short lived jobs intended to
run on every compatible node in the cluster.

As with batch jobs, sysbatch jobs can also be periodic and/or parameterized
dispatch jobs. A sysbatch job is considered complete when it has been run
on all compatible nodes until reaching a terminal state (success or failed
on retries).

Feasibility and preemption are governed the same as with system jobs. In
this PR, the update stanza is not yet supported. The update stanza is sill
limited in functionality for the underlying system scheduler, and is
not useful yet for sysbatch jobs. Further work in #4740 will improve
support for the update stanza and deployments.

Closes #2527
2021-08-03 10:30:47 -04:00
Seth Hoenig ac5c83cafd core: remove internalization of affinity strings
Basically the same as #10896 but with the Affinity struct.
Since we use reflect.DeepEquals for job comparison, there is
risk of false positives for changes due to a job struct with
memoized vs non-memoized strings.

Closes #10897
2021-07-15 15:15:39 -05:00
Seth Hoenig 1aec25f1df core: do not memoize constraint strings
This PR causes Nomad to no longer memoize the String value of
a Constraint. The private memoized variable may or may not be
initialized at any given time, which means a reflect.DeepEqual
comparison between two jobs (e.g. during Plan) may return incorrect
results.

Fixes #10836
2021-07-14 10:04:35 -05:00
Mahmood Ali 1f34f2197b
Merge pull request #10806 from hashicorp/munda/idempotent-job-dispatch
Enforce idempotency of dispatched jobs using token on dispatch request
2021-07-08 10:23:31 -04:00
Tim Gross 9f128a28ae
service: remove duplicate name check during validation (#10868)
When a task group with `service` block(s) is validated, we validate that there
are no duplicates, but this validation doesn't have access to the task environment
because it hasn't been created yet. Services and checks with interpolation can
be flagged incorrectly as conflicting. Name conflicts in services are not
actually an error in Consul and users have reported wanting to use the same
service name for task groups differentiated by tags.
2021-07-08 09:43:38 -04:00
Alex Munda 848918018c
Move idempotency token to write options. Remove DispatchIdempotent 2021-06-30 15:10:48 -05:00
Alex Munda ca86c7ba0c
Add idempotency token to dispatch request instead of special meta key 2021-06-29 15:59:23 -05:00
Seth Hoenig d026ff1f66 consul/connect: add support for connect mesh gateways
This PR implements first-class support for Nomad running Consul
Connect Mesh Gateways. Mesh gateways enable services in the Connect
mesh to make cross-DC connections via gateways, where each datacenter
may not have full node interconnectivity.

Consul docs with more information:
https://www.consul.io/docs/connect/gateways/mesh-gateway

The following group level service block can be used to establish
a Connect mesh gateway.

service {
  connect {
    gateway {
      mesh {
        // no configuration
      }
    }
  }
}

Services can make use of a mesh gateway by configuring so in their
upstream blocks, e.g.

service {
  connect {
    sidecar_service {
      proxy {
        upstreams {
          destination_name = "<service>"
          local_bind_port  = <port>
          datacenter       = "<datacenter>"
          mesh_gateway {
            mode = "<mode>"
          }
        }
      }
    }
  }
}

Typical use of a mesh gateway is to create a bridge between datacenters.
A mesh gateway should then be configured with a service port that is
mapped from a host_network configured on a WAN interface in Nomad agent
config, e.g.

client {
  host_network "public" {
    interface = "eth1"
  }
}

Create a port mapping in the group.network block for use by the mesh
gateway service from the public host_network, e.g.

network {
  mode = "bridge"
  port "mesh_wan" {
    host_network = "public"
  }
}

Use this port label for the service.port of the mesh gateway, e.g.

service {
  name = "mesh-gateway"
  port = "mesh_wan"
  connect {
    gateway {
      mesh {}
    }
  }
}

Currently Envoy is the only supported gateway implementation in Consul.
By default Nomad client will run the latest official Envoy docker image
supported by the local Consul agent. The Envoy task can be customized
by setting `meta.connect.gateway_image` in agent config or by setting
the `connect.sidecar_task` block.

Gateways require Consul 1.8.0+, enforced by the Nomad scheduler.

Closes #9446
2021-06-04 08:24:49 -05:00
Seth Hoenig d359eb6f3a consul/connect: use additional constraints in scheduling connect tasks
This PR adds two additional constraints on Connect sidecar and gateway tasks,
making sure Nomad schedules them only onto nodes where Connect is actually
enabled on the Consul agent.

Consul requires `connect.enabled = true` and `ports.grpc = <number>` to be
explicitly set on agent configuration before Connect APIs will work. Until
now, Nomad would only validate a minimum version of Consul, which would cause
confusion for users who try to run Connect tasks on nodes where Consul is not
yet sufficiently configured. These contstraints prevent job scheduling on nodes
where Connect is not actually use-able.

Closes #10700
2021-06-03 15:43:34 -05:00
Tim Gross e9777a88ce plan applier: add trace-level log of plan
The plans generated by the scheduler produce high-level output of counts on each
evaluation, but when debugging scheduler issues it'd be nice to have a more
detailed view of the resulting plan. Emitting this log at trace minimizes the
overhead, and producing it in the plan applyer makes it easier to find as it
will always be on the leader.
2021-06-02 10:25:23 -04:00
Chris Baker 263ddd567c
Node Drain Metadata (#10250) 2021-05-07 13:58:40 -04:00
Michael Schurter 547a718ef6
Merge pull request #10248 from hashicorp/f-remotetask-2021
core: propagate remote task handles
2021-04-30 08:57:26 -07:00
Luiz Aoqui f1b9055d21
Add metrics for blocked eval resources (#10454)
* add metrics for blocked eval resources

* docs: add new blocked_evals metrics

* fix to call `pruneStats` instead of `stats.prune` directly
2021-04-29 15:03:45 -04:00
Michael Schurter e62795798d core: propagate remote task handles
Add a new driver capability: RemoteTasks.

When a task is run by a driver with RemoteTasks set, its TaskHandle will
be propagated to the server in its allocation's TaskState. If the task
is replaced due to a down node or draining, its TaskHandle will be
propagated to its replacement allocation.

This allows tasks to be scheduled in remote systems whose lifecycles are
disconnected from the Nomad node's lifecycle.

See https://github.com/hashicorp/nomad-driver-ecs for an example ECS
remote task driver.
2021-04-27 15:07:03 -07:00
Mahmood Ali cf24a9eaaf
api: /v1/jobs always include namespaces (#10434)
Add Namespace as a top-level field in `/v1/jobs` stub.

The `/v1/jobs` endpoint already includes the namespace under `JobSummary`, though the API is odd, as typically the job ID and Namespace are in the same level, and the oddity complicates the UI frontend development.

The downside of adding it is redundant field, that makes the response body a bit bigger, specially for clusters with large jobs. Though, it should compress nicely and I expect the overhead to be small to overall response size. The benefit of a cleaner and more consistent API seem worth it.

Fixes #10431
2021-04-23 16:36:54 -04:00
Mahmood Ali d2fcce21f8
Migrate all allocs when draining a node (#10411)
This fixes a bug affecting drain nodes, where allocs may fail to be
migrated if they belong to different namespaces but share the same job
name.

The reason is that the helper function that creates the migration evals
indexed the allocs by job ID without accounting for the namespaces.
When job ids clash, only an eval is created for one and the rest of the
allocs remain intact.

Fixes #10172
2021-04-21 12:11:14 -04:00
Seth Hoenig 1ee8d5ffc5 api: implement fuzzy search API
This PR introduces the /v1/search/fuzzy API endpoint, used for fuzzy
searching objects in Nomad. The fuzzy search endpoint routes requests
to the Nomad Server leader, which implements the Search.FuzzySearch RPC
method.

Requests to the fuzzy search API are based on the api.FuzzySearchRequest
object, e.g.

{
  "Text": "ed",
  "Context": "all"
}

Responses from the fuzzy search API are based on the api.FuzzySearchResponse
object, e.g.

{
  "Index": 27,
  "KnownLeader": true,
  "LastContact": 0,
  "Matches": {
    "tasks": [
      {
        "ID": "redis",
        "Scope": [
          "default",
          "example",
          "cache"
        ]
      }
    ],
    "evals": [],
    "deployment": [],
    "volumes": [],
    "scaling_policy": [],
    "images": [
      {
        "ID": "redis:3.2",
        "Scope": [
          "default",
          "example",
          "cache",
          "redis"
        ]
      }
    ]
  },
  "Truncations": {
    "volumes": false,
    "scaling_policy": false,
    "evals": false,
    "deployment": false
  }
}

The API is tunable using the new server.search stanza, e.g.

server {
  search {
    fuzzy_enabled   = true
    limit_query     = 200
    limit_results   = 1000
    min_term_length = 5
  }
}

These values can be increased or decreased, so as to provide more
search results or to reduce load on the Nomad Server. The fuzzy search
API can be disabled entirely by setting `fuzzy_enabled` to `false`.
2021-04-16 16:36:07 -06:00
Tim Gross dbcc2694b0 refactor: move VolumeRequest validation to Validate method 2021-04-07 11:24:09 -04:00
Seth Hoenig f17ba33f61 consul: plubming for specifying consul namespace in job/group
This PR adds the common OSS changes for adding support for Consul Namespaces,
which is going to be a Nomad Enterprise feature. There is no new functionality
provided by this changeset and hopefully no new bugs.
2021-04-05 10:03:19 -06:00
Chris Baker 436d46bd19
Merge branch 'main' into f-node-drain-api 2021-04-01 15:22:57 -05:00
Tim Gross aec5337862 CSI: HTTP handlers for create/delete/list 2021-03-31 16:37:09 -04:00
Mahmood Ali 0c2551270a oversubscription: Add MemoryMaxMB to internal structs
Start tracking a new MemoryMaxMB field that represents the maximum memory a task
may use in the client. This allows tasks to specify a memory reservation (to be
used by scheduler when placing the task) but use excess memory used on the
client if the client has any.

This commit adds the server tracking for the value, and ensures that allocations
AllocatedResource fields include the value.
2021-03-30 16:55:58 -04:00
Nick Ethier daecfa61e6
Merge pull request #10203 from hashicorp/f-cpu-cores
Reserved Cores [1/4]: Structs and scheduler implementation
2021-03-29 14:05:54 -04:00
Chris Baker 16e37b986a reworked Node.Canonicalize() to enforce invariants, fixed a broken test 2021-03-26 18:58:38 +00:00
Chris Baker 770c9cecb5 restored Node.Sanitize() for RPC endpoints
multiple other updates from code review
2021-03-26 17:03:15 +00:00
Chris Baker cb540ed691 added tests that the API doesn't leak Node.SecretID
added more documentation on JSON encoding to the contributing guide
2021-03-23 18:09:20 +00:00
Chris Baker a186badf35 moved JSON handlers and extension code around a bit for proper order of
initialization
2021-03-22 14:12:42 +00:00
Chris Baker 9f7bc5a575 refactor? 2021-03-22 01:49:21 +00:00
Chris Baker dd291e69f4 removed deprecated fields from Drain structs and API
node drain: use msgtype on txn so that events are emitted
wip: encoding extension to add Node.Drain field back to API responses

new approach for hiding Node.SecretID in the API, using `json` tag
documented this approach in the contributing guide
refactored the JSON handlers with extensions
modified event stream encoding to use the go-msgpack encoders with the extensions
2021-03-21 15:30:11 +00:00
Nick Ethier 648ade63ad scheduler: implement scheduling of reserved cores 2021-03-19 00:29:07 -04:00
Nick Ethier 26b200e8bd api: add new 'cores' field to task resources 2021-03-18 23:13:30 -04:00
Nick Ethier 4b2912d343 structs: add struct fields and funcs for reservable cpu cores 2021-03-18 22:49:06 -04:00
Tim Gross fa25e048b2
CSI: unique volume per allocation
Add a `PerAlloc` field to volume requests that directs the scheduler to test
feasibility for volumes with a source ID that includes the allocation index
suffix (ex. `[0]`), rather than the exact source ID.

Read the `PerAlloc` field when making the volume claim at the client to
determine if the allocation index suffix (ex. `[0]`) should be added to the
volume source ID.
2021-03-18 15:35:11 -04:00
Charlie Voiselle 0473f35003
Fixup uses of `sanity` (#10187)
* Fixup uses of `sanity`
* Remove unnecessary comments.

These checks are better explained by earlier comments about
the context of the test. Per @tgross, moved the tests together
to better reinforce the overall shared context.

* Update nomad/fsm_test.go
2021-03-16 18:05:08 -04:00
Tim Gross 97b0e26d1f RPC endpoints to support 'nomad ui -login'
RPC endpoints for the user-driven APIs (`UpsertOneTimeToken` and
`ExchangeOneTimeToken`) and token expiration (`ExpireOneTimeTokens`).
Includes adding expiration to the periodic core GC job.
2021-03-10 08:17:56 -05:00
Tim Gross 6b2c4b56d0 state store updates for one-time tokens
The `OneTimeToken` struct is to support the `nomad ui -login` command. This
changeset adds the struct to the Nomad state store.
2021-03-10 08:17:56 -05:00
Tim Gross b764f52ab9
deploymentwatcher: reset progress deadline on promotion (#10042)
In a deployment with two groups (ex. A and B), if group A's canary becomes
healthy before group B's, the deadline for the overall deployment will be set
to that of group A. When the deployment is promoted, if group A is done it
will not contribute to the next deadline cutoff. Group B's old deadline will
be used instead, which will be in the past and immediately trigger a
deployment progress failure. Reset the progress deadline when the job is
promotion to avoid this bug, and to better conform with implicit user
expectations around how the progress deadline should interact with promotions.
2021-02-22 16:44:03 -05:00
AndrewChubatiuk 3d0aa2ef56 allocate sidecar task port on host_network interface 2021-02-13 02:42:13 +02:00
Nick Ethier eacc4da499
Merge branch 'master' into b-9477 2021-02-05 11:58:13 -05:00
Chris Baker ebbb760ec4 support for scaling_policy in global prefix search 2021-02-03 19:26:57 +00:00
Nick Ethier 43a4d72fda structs: namespace port validation by host_network 2021-02-02 14:56:52 -05:00
Seth Hoenig 8b05efcf88 consul/connect: Add support for Connect terminating gateways
This PR implements Nomad built-in support for running Consul Connect
terminating gateways. Such a gateway can be used by services running
inside the service mesh to access "legacy" services running outside
the service mesh while still making use of Consul's service identity
based networking and ACL policies.

https://www.consul.io/docs/connect/gateways/terminating-gateway

These gateways are declared as part of a task group level service
definition within the connect stanza.

service {
  connect {
    gateway {
      proxy {
        // envoy proxy configuration
      }
      terminating {
        // terminating-gateway configuration entry
      }
    }
  }
}

Currently Envoy is the only supported gateway implementation in
Consul. The gateay task can be customized by configuring the
connect.sidecar_task block.

When the gateway.terminating field is set, Nomad will write/update
the Configuration Entry into Consul on job submission. Because CEs
are global in scope and there may be more than one Nomad cluster
communicating with Consul, there is an assumption that any terminating
gateway defined in Nomad for a particular service will be the same
among Nomad clusters.

Gateways require Consul 1.8.0+, checked by a node constraint.

Closes #9445
2021-01-25 10:36:04 -06:00
Dennis Schön 3eaf1432aa
validate connect block allowed only within group.service 2021-01-20 14:34:23 -05:00
Kris Hicks d71a90c8a4
Fix some errcheck errors (#9811)
* Throw away result of multierror.Append

When given a *multierror.Error, it is mutated, therefore the return
value is not needed.

* Simplify MergeMultierrorWarnings, use StringBuilder

* Hash.Write() never returns an error

* Remove error that was always nil

* Remove error from Resources.Add signature

When this was originally written it could return an error, but that was
refactored away, and callers of it as of today never handle the error.

* Throw away results of io.Copy during Bridge

* Handle errors when computing node class in test
2021-01-14 12:46:35 -08:00
Kris Hicks abb8f2ebc0
Refactor Job.Scale() (#9771) 2021-01-14 12:40:42 -08:00
Drew Bailey 54becaab7d
Events/acl events (#9595)
* fix acl event creation

* allow way to access secretID without exposing it to stream

test that values are omitted

test event creation

test acl events

payloads are pointers

fix failing tests, do all security steps inside constructor

* increase time

* ignore empty tokens

* uncomment line

* changelog
2020-12-11 10:40:50 -05:00
Kris Hicks 0cf9cae656
Apply some suggested fixes from staticcheck (#9598) 2020-12-10 07:29:18 -08:00
Kris Hicks 0a3a748053
Add gosimple linter (#9590) 2020-12-09 11:05:18 -08:00
Kris Hicks 93155ba3da
Add gocritic to golangci-lint config (#9556) 2020-12-08 12:47:04 -08:00
James Rasell fd53963afb
core: fix typo msg used when job ID/name contains a null char. 2020-12-04 09:49:31 +01:00
Benjamin Buzbee e0acbbfcc6
Fix RPC retry logic in nomad client's rpc.go for blocking queries (#9266) 2020-11-30 15:11:10 -05:00
Seth Hoenig a35c0db6c7 nomad/structs: validate deprecated task.resource.network port labels
Enable users to submit jobs that still make use of the deprecated
task.resources.network stanza. Such jobs can be submitted, but
will emit a warning.
2020-11-23 12:40:40 -06:00
Nick Ethier f1ea79f5a8 remove references to default mbits 2020-11-23 10:32:13 -06:00
Nick Ethier 7266376ae6 nomad: update validate to check group networks for task port usage 2020-11-23 10:11:00 -06:00
Nick Ethier c4ddb0a43a website: add mbits and network deprecation notice 2020-11-23 10:09:36 -06:00
Seth Hoenig 4cc3c01d5b
Merge pull request #9352 from hashicorp/f-artifact-headers
jobspec: add support for headers in artifact stanza
2020-11-13 14:04:27 -06:00
Seth Hoenig bb8a5816a0 jobspec: add support for headers in artifact stanza
This PR adds the ability to set HTTP headers when downloading
an artifact from an `http` or `https` resource.

The implementation in `go-getter` is such that a new `HTTPGetter`
must be created for each artifact that sets headers (as opposed
to conveniently setting headers per-request). This PR maintains
the memoization of the default Getter objects, creating new ones
only for artifacts where headers are set.

Closes #9306
2020-11-13 12:03:54 -06:00
Jasmine Dahilig d6110cbed4
lifecycle: add poststop hook (#8194) 2020-11-12 08:01:42 -08:00
Nick Ethier 5e1634eda1
structs: canonicalize allocatedtaskresources to populate shared ports (#9309) 2020-11-11 16:21:47 -05:00
Chris Baker e3c0ea654d auto-complete for recommendations CLI, plus OSS components of recommendations prefix search 2020-11-11 11:13:43 +00:00
Luiz Aoqui c536286c7a
remove Namespace field from JobScaleRequest 2020-11-09 13:02:05 -05:00
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
Michael Schurter c2dd9bc996 core: open source namespaces 2020-10-22 15:26:32 -07:00
Nick Ethier 4903e5b114
Consul with CNI and host_network addresses (#9095)
* consul: advertise cni and multi host interface addresses

* structs: add service/check address_mode validation

* ar/groupservices: fetch networkstatus at hook runtime

* ar/groupservice: nil check network status getter before calling

* consul: comment network status can be nil
2020-10-15 15:32:21 -04:00
Pierre Cauchois 13218dc345
Enforce bounds on MaxQueryTime (#9064)
The MaxQueryTime value used in QueryOptions.HasTimedOut() can be set to
an invalid value that would throw off how RPC requests are retried.

This fix uses the same logic that enforces the MaxQueryTime bounds in the
blockingRPC() call.
2020-10-15 08:43:06 -04:00
Michael Schurter dd09fa1a4a
Merge pull request #9055 from hashicorp/f-9017-resources
api: add field filters to /v1/{allocations,nodes}
2020-10-14 14:49:39 -07:00
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
Michael Schurter 8ccbd92cb6 api: add field filters to /v1/{allocations,nodes}
Fixes #9017

The ?resources=true query parameter includes resources in the object
stub listings. Specifically:

- For `/v1/nodes?resources=true` both the `NodeResources` and
  `ReservedResources` field are included.
- For `/v1/allocations?resources=true` the `AllocatedResources` field is
  included.

The ?task_states=false query parameter removes TaskStates from
/v1/allocations responses. (By default TaskStates are included.)
2020-10-14 10:35:22 -07:00
Drew Bailey 684807bddb
namespace filtering 2020-10-14 12:44:43 -04:00
Drew Bailey b4c135358d
use Events to wrap index and events, store in events table 2020-10-14 12:44:39 -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 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
Drew Bailey a4a2975edf
Event Stream API/RPC (#8947)
This Commit adds an /v1/events/stream endpoint to stream events from.

The stream framer has been updated to include a SendFull method which
does not fragment the data between multiple frames. This essentially
treats the stream framer as a envelope to adhere to the stream framer
interface in the UI.

If the `encode` query parameter is omitted events will be streamed as
newline delimted JSON.
2020-10-14 12:44:36 -04:00
Seth Hoenig ed13e5723f consul/connect: dynamically select envoy sidecar at runtime
As newer versions of Consul are released, the minimum version of Envoy
it supports as a sidecar proxy also gets bumped. Starting with the upcoming
Consul v1.9.X series, Envoy v1.11.X will no longer be supported. Current
versions of Nomad hardcode a version of Envoy v1.11.2 to be used as the
default implementation of Connect sidecar proxy.

This PR introduces a change such that each Nomad Client will query its
local Consul for a list of Envoy proxies that it supports (https://github.com/hashicorp/consul/pull/8545)
and then launch the Connect sidecar proxy task using the latest supported version
of Envoy. If the `SupportedProxies` API component is not available from
Consul, Nomad will fallback to the old version of Envoy supported by old
versions of Consul.

Setting the meta configuration option `meta.connect.sidecar_image` or
setting the `connect.sidecar_task` stanza will take precedence as is
the current behavior for sidecar proxies.

Setting the meta configuration option `meta.connect.gateway_image`
will take precedence as is the current behavior for connect gateways.

`meta.connect.sidecar_image` and `meta.connect.gateway_image` may make
use of the special `${NOMAD_envoy_version}` variable interpolation, which
resolves to the newest version of Envoy supported by the Consul agent.

Addresses #8585 #7665
2020-10-13 09:14:12 -05:00
Nick Ethier d45be0b5a6
client: add NetworkStatus to Allocation (#8657) 2020-10-12 13:43:04 -04:00
Seth Hoenig 0c5ae5769f
Merge pull request #9029 from hashicorp/b-tgs-updates
consul/connect: trigger update as necessary on connect changes
2020-10-05 16:48:04 -05:00
Seth Hoenig f44a4f68ee consul/connect: trigger update as necessary on connect changes
This PR fixes a long standing bug where submitting jobs with changes
to connect services would not trigger updates as expected. Previously,
service blocks were not considered as sources of destructive updates
since they could be synced with consul non-destructively. With Connect,
task group services that have changes to their connect block or to
the service port should be destructive, since the network plumbing of
the alloc is going to need updating.

Fixes #8596 #7991

Non-destructive half in #7192
2020-10-05 14:53:00 -05:00
Chris Baker 7f701fddd0 updated docs and validation to further prohibit null chars in region, datacenter, and job name 2020-10-05 18:01:50 +00:00
Chris Baker 23ea7cd27c updated job validate to refute job/group/task IDs containing null characters
updated CHANGELOG and upgrade guide
2020-10-05 18:01:49 +00:00
Michael Schurter 765473e8b0 jobspec: lower min cpu resources from 10->1
Since CPU resources are usually a soft limit it is desirable to allow
setting it as low as possible to allow tasks to run only in "idle" time.

Setting it to 0 is still not allowed to avoid potential unintentional
side effects with allowing a zero value. While there may not be any side
effects this commit attempts to minimize risk by avoiding the issue.

This does *not* change the defaults.
2020-09-30 12:15:13 -07:00
Luiz Aoqui 88d4eecfd0
add scaling policy type 2020-09-29 17:57:46 -04:00
Seth Hoenig af9543c997 consul: fix validation of task in group-level script-checks
When defining a script-check in a group-level service, Nomad needs to
know which task is associated with the check so that it can use the
correct task driver to execute the check.

This PR fixes two bugs:
1) validate service.task or service.check.task is configured
2) make service.check.task inherit service.task if it is itself unset

Fixes #8952
2020-09-28 15:02:59 -05:00
Pierre Cauchois e4b739cafd
RPC Timeout/Retries account for blocking requests (#8921)
The current implementation measures RPC request timeout only against
config.RPCHoldTimeout, which is fine for non-blocking requests but will
almost surely be exceeded by long-poll requests that block for minutes
at a time.

This adds an HasTimedOut method on the RPCInfo interface that takes into
account whether the request is blocking, its maximum wait time, and the
RPCHoldTimeout.
2020-09-18 08:58:41 -04:00
Jasmine Dahilig 71a694f39c
Merge pull request #8390 from hashicorp/lifecycle-poststart-hook
task lifecycle poststart hook
2020-08-31 13:53:24 -07:00
Jasmine Dahilig fbe0c89ab1 task lifecycle poststart: code review fixes 2020-08-31 13:22:41 -07:00
Tim Gross b77fe023b5
MRD: move 'job stop -global' handling into RPC (#8776)
The initial implementation of global job stop for MRD looped over all the
regions in the CLI for expedience. This changeset includes the OSS parts of
moving this into the RPC layer so that API consumers don't have to implement
this logic themselves.
2020-08-28 14:28:13 -04:00
Seth Hoenig 84176c9a41 consul/connect: make use of task kind to determine service name in consul token checks
When consul.allow_unauthenticated is set to false, the job_endpoint hook validates
that a `-consul-token` is provided and validates the token against the privileges
inherent to a Consul Service Identity policy for all the Connect enabled services
defined in the job.

Before, the check was assuming the service was of type sidecar-proxy. This fixes the
check to use the type of the task so we can distinguish between the different connect
types.
2020-08-27 12:14:40 -05:00
Seth Hoenig 9f1f2a5673 Merge branch 'master' into f-cc-ingress 2020-08-26 15:31:05 -05:00
Mahmood Ali 45f549e29e
Merge pull request #8691 from hashicorp/b-reschedule-job-versions
Respect alloc job version for lost/failed allocs
2020-08-25 18:02:45 -04:00
Mahmood Ali def768728e Have Plan.AppendAlloc accept the job 2020-08-25 17:22:09 -04:00
Mahmood Ali 18632955f2 clarify PathEscapesAllocDir specification
Clarify how to handle prefix value and path traversal within the alloc
dir but outside the prefix directory.
2020-08-24 20:44:26 -04:00
Seth Hoenig 26e77623e5 consul/connect: fixup tests to use new consul sdk 2020-08-24 12:02:41 -05:00
Seth Hoenig 5b072029f2 consul/connect: add initial support for ingress gateways
This PR adds initial support for running Consul Connect Ingress Gateways (CIGs) in Nomad. These gateways are declared as part of a task group level service definition within the connect stanza.

```hcl
service {
  connect {
    gateway {
      proxy {
        // envoy proxy configuration
      }
      ingress {
        // ingress-gateway configuration entry
      }
    }
  }
}
```

A gateway can be run in `bridge` or `host` networking mode, with the caveat that host networking necessitates manually specifying the Envoy admin listener (which cannot be disabled) via the service port value.

Currently Envoy is the only supported gateway implementation in Consul, and Nomad only supports running Envoy as a gateway using the docker driver.

Aims to address #8294 and tangentially #8647
2020-08-21 16:21:54 -05:00
Nick Ethier 3cd5f46613
Update UI to use new allocated ports fields (#8631)
* nomad: canonicalize alloc shared resources to populate ports

* ui: network ports

* ui: remove unused task network references and update tests with new shared ports model

* ui: lint

* ui: revert auto formatting

* ui: remove unused page objects

* structs: remove unrelated test from bad conflict resolution

* ui: formatting
2020-08-20 11:07:13 -04:00
Mahmood Ali 8a342926b7 Respect alloc job version for lost/failed allocs
This change fixes a bug where lost/failed allocations are replaced by
allocations with the latest versions, even if the version hasn't been
promoted yet.

Now, when generating a plan for lost/failed allocations, the scheduler
first checks if the current deployment is in Canary stage, and if so, it
ensures that any lost/failed allocations is replaced one with the latest
promoted version instead.
2020-08-19 09:52:48 -04:00
Tim Gross 38ec70eb8d
multiregion: validation should always return error for OSS (#8687) 2020-08-18 15:35:38 -04:00
Drew Bailey bd421b6197
Merge pull request #8453 from hashicorp/oss-multi-vault-ns
oss compoments for multi-vault namespaces
2020-07-27 08:45:22 -04:00
Drew Bailey b296558b8e
oss compoments for multi-vault namespaces
adds in oss components to support enterprise multi-vault namespace feature

upgrade specific doc on vault multi-namespaces

vault docs

update test to reflect new error
2020-07-24 10:14:59 -04:00
James Rasell da91e1d0fc
api: add namespace to scaling status GET response object. 2020-07-24 11:19:25 +02:00
Lang Martin a3bfd8c209
structs: Job.Validate only allows stop_after_client_disconnected on batch and service jobs (#8444)
* nomad/structs/structs: add to Job.Validate

* Update nomad/structs/structs.go

Co-authored-by: Mahmood Ali <mahmood@hashicorp.com>

* nomad/structs/structs: match error strings to the config file

* nomad/structs/structs_test: clarify the test a bit

* nomad/structs/structs_test: typo in the test error comparison

Co-authored-by: Mahmood Ali <mahmood@hashicorp.com>
2020-07-20 10:27:25 -04:00
Mahmood Ali fbfe4ab1bd Atomic eval insertion with job (de-)registration
This fixes a bug where jobs may get "stuck" unprocessed that
dispropotionately affect periodic jobs around leadership transitions.
When registering a job, the job registration and the eval to process it
get applied to raft as two separate transactions; if the job
registration succeeds but eval application fails, the job may remain
unprocessed. Operators may detect such failure, when submitting a job
update and get a 500 error code, and they could retry; periodic jobs
failures are more likely to go unnoticed, and no further periodic
invocations will be processed until an operator force evaluation.

This fixes the issue by ensuring that the job registration and eval
application get persisted and processed atomically in the same raft log
entry.

Also, applies the same change to ensure atomicity in job deregistration.

Backward Compatibility

We must maintain compatibility in two scenarios: mixed clusters where a
leader can handle atomic updates but followers cannot, and a recent
cluster processes old log entries from legacy or mixed cluster mode.

To handle this constraints: ensure that the leader continue to emit the
Evaluation log entry until all servers have upgraded; also, when
processing raft logs, the servers honor evaluations found in both spots,
the Eval in job (de-)registration and the eval update entries.

When an updated server sees mix-mode behavior where an eval is inserted
into the raft log twice, it ignores the second instance.

I made one compromise in consistency in the mixed-mode scenario: servers
may disagree on the eval.CreateIndex value: the leader and updated
servers will report the job registration index while old servers will
report the index of the eval update log entry. This discripency doesn't
seem to be material - it's the eval.JobModifyIndex that matters.
2020-07-14 11:59:29 -04:00
Tim Gross bd457343de
MRD: all regions should start pending (#8433)
Deployments should wait until kicked off by `Job.Register` so that we can
assert that all regions have a scheduled deployment before starting any
region. This changeset includes the OSS fixes to support the ENT work.

`IsMultiregionStarter` has no more callers in OSS, so remove it here.
2020-07-14 10:57:37 -04:00
Tim Gross 0ce3c1e942
multiregion: allow empty region DCs (#8426)
It's supposed to be possible for a region not to have `datacenters` set so
that it can use the job's `datacenters` field. This requires that operators
use the same DC name across multiple regions, but that's the default client
configuration.
2020-07-13 13:34:19 -04:00
Jasmine Dahilig 9e27231953 add poststart hook to task hook coordinator & structs 2020-07-08 11:01:35 -07:00
Chris Baker a77e012220 better testing of scaling parsing, fixed some broken tests by api
changes
2020-07-04 19:32:37 +00:00
Chris Baker 9100b6b7c0 changes to make sure that Max is present and valid, to improve error messages
* made api.Scaling.Max a pointer, so we can detect (and complain) when it is neglected
* added checks to HCL parsing that it is present
* when Scaling.Max is absent/invalid, don't return extraneous error messages during validation
* tweak to multiregion handling to ensure that the count is valid on the interpolated regional jobs

resolves #8355
2020-07-04 19:05:50 +00:00
Lang Martin 6c22cd587d
api: `nomad debug` new /agent/host (#8325)
* command/agent/host: collect host data, multi platform

* nomad/structs/structs: new HostDataRequest/Response

* client/agent_endpoint: add RPC endpoint

* command/agent/agent_endpoint: add Host

* api/agent: add the Host endpoint

* nomad/client_agent_endpoint: add Agent Host with forwarding

* nomad/client_agent_endpoint: use findClientConn

This changes forwardMonitorClient and forwardProfileClient to use
findClientConn, which was cribbed from the common parts of those
funcs.

* command/debug: call agent hosts

* command/agent/host: eliminate calling external programs
2020-07-02 09:51:25 -04:00
Mahmood Ali 7f460d2706 allocrunner: terminate sidecars in the end
This fixes a bug where a batch allocation fails to complete if it has
sidecars.

If the only remaining running tasks in an allocations are sidecars - we
must kill them and mark the allocation as complete.
2020-06-29 15:12:15 -04:00
Mahmood Ali 6605ebd314
Merge pull request #8223 from hashicorp/f-multi-network-validate-ports
core: validate port numbers are < 65535
2020-06-26 08:31:01 -04:00
Nick Ethier 89118016fc
command: correctly show host IP in ports output /w multi-host networks (#8289) 2020-06-25 15:16:01 -04:00
Tim Gross a449009e9f
multiregion validation fixes (#8265)
Multi-region jobs need to bypass validating counts otherwise we get spurious
warnings in Job.Plan.
2020-06-24 12:18:51 -04:00
Seth Hoenig 3872b493e5
Merge pull request #8011 from hashicorp/f-cnative-host
consul/connect: implement initial support for connect native
2020-06-24 10:33:12 -05:00
Michael Schurter 7869ebc587 docs: add comments to structs.Port struct 2020-06-23 11:38:01 -07:00
Michael Schurter 13ed710a04 core: validate port numbers are <= 65535
The scheduler returns a very strange error if it detects a port number
out of range. If these would somehow make it to the client they would
overflow when converted to an int32 and could cause conflicts.
2020-06-23 11:31:49 -07:00
Seth Hoenig 4d71f22a11 consul/connect: add support for running connect native tasks
This PR adds the capability of running Connect Native Tasks on Nomad,
particularly when TLS and ACLs are enabled on Consul.

The `connect` stanza now includes a `native` parameter, which can be
set to the name of task that backs the Connect Native Consul service.

There is a new Client configuration parameter for the `consul` stanza
called `share_ssl`. Like `allow_unauthenticated` the default value is
true, but recommended to be disabled in production environments. When
enabled, the Nomad Client's Consul TLS information is shared with
Connect Native tasks through the normal Consul environment variables.
This does NOT include auth or token information.

If Consul ACLs are enabled, Service Identity Tokens are automatically
and injected into the Connect Native task through the CONSUL_HTTP_TOKEN
environment variable.

Any of the automatically set environment variables can be overridden by
the Connect Native task using the `env` stanza.

Fixes #6083
2020-06-22 14:07:44 -05:00
Michael Schurter 562704124d
Merge pull request #8208 from hashicorp/f-multi-network
multi-interface network support
2020-06-19 15:46:48 -07:00
Nick Ethier a87e91e971
test: fix up testing around host networks 2020-06-19 13:53:31 -04:00
Nick Ethier f0ac1f027a
lint: spelling 2020-06-19 11:29:41 -04:00
Tim Gross b654e1b8a4
multiregion: all regions start in running if no max_parallel (#8209)
If `max_parallel` is not set, all regions should begin in a `running` state
rather than a `pending` state. Otherwise the first region is set to `running`
and then all the remaining regions once it enters `blocked. That behavior is
technically correct in that we have at most `max_parallel` regions running,
but definitely not what a user expects.
2020-06-19 11:17:09 -04:00
Nick Ethier f0559a8162
multi-interface network support 2020-06-19 09:42:10 -04:00
Tim Gross 8a354f828f
store ACL Accessor ID from Job.Register with Job (#8204)
In multiregion deployments when ACLs are enabled, the deploymentwatcher needs
an appropriately scoped ACL token with the same `submit-job` rights as the
user who submitted it. The token will already be replicated, so store the
accessor ID so that it can be retrieved by the leader.
2020-06-19 07:53:29 -04:00
Mahmood Ali 38a01c050e
Merge pull request #8192 from hashicorp/f-status-allnamespaces-2
CLI Allow querying all namespaces for jobs and allocations - Try 2
2020-06-18 20:16:52 -04:00
Nick Ethier 4a44deaa5c CNI Implementation (#7518) 2020-06-18 11:05:29 -07:00
Nick Ethier 0bc0403cc3 Task DNS Options (#7661)
Co-Authored-By: Tim Gross <tgross@hashicorp.com>
Co-Authored-By: Seth Hoenig <shoenig@hashicorp.com>
2020-06-18 11:01:31 -07:00
Mahmood Ali e784fe331a use '*' to indicate all namespaces
This reverts the introduction of AllNamespaces parameter that was merged
earlier but never got released.
2020-06-17 16:27:43 -04:00
Tim Gross c14a75bfab multiregion: use pending instead of paused
The `paused` state is used as an operator safety mechanism, so that they can
debug a deployment or halt one that's causing a wider failure. By using the
`paused` state as the first state of a multiregion deployment, we risked
resuming an intentionally operator-paused deployment because of activity in a
peer region.

This changeset replaces the use of the `paused` state with a `pending` state,
and provides a `Deployment.Run` internal RPC to replace the use of the
`Deployment.Pause` (resume) RPC we were using in `deploymentwatcher`.
2020-06-17 11:06:14 -04:00
Tim Gross fd50b12ee2 multiregion: integrate with deploymentwatcher
* `nextRegion` should take status parameter
* thread Deployment/Job RPCs thru `nextRegion`
* add `nextRegion` calls to `deploymentwatcher`
* use a better description for paused for peer
2020-06-17 11:06:00 -04:00
Tim Gross 7b12445f29 multiregion: change AutoRevert to OnFailure 2020-06-17 11:05:45 -04:00
Tim Gross 5c4d0a73f4 start all but first region deployment in paused state 2020-06-17 11:05:34 -04:00
Tim Gross b09b7a2475 Multiregion job registration
Integration points for multiregion jobs to be registered in the enterprise
version of Nomad:
* hook in `Job.Register` for enterprise to send job to peer regions
* remove monitoring from `nomad job run` and `nomad job stop` for multiregion jobs
2020-06-17 11:04:58 -04:00
Drew Bailey 9263fcb0d3 Multiregion deploy status and job status CLI 2020-06-17 11:03:34 -04:00
Tim Gross 473a0f1d44 multiregion: unblock and cancel RPCs 2020-06-17 11:02:26 -04:00
Tim Gross ede3a4f1c4 multiregion: request structs 2020-06-17 11:00:34 -04:00
Tim Gross 6851024925 Multiregion structs
Initial struct definitions, jobspec parsing, validation, and conversion
between Nomad structs and API structs for multi-region deployments.
2020-06-17 11:00:14 -04:00
Chris Baker 1e3563e08c wip: added PreserveCounts to struct.JobRegisterRequest, development test for Job.Register 2020-06-16 18:45:17 +00:00
Chris Baker aeb3ed449e wip: added .PreviousCount to api.ScalingEvent and structs.ScalingEvent, with developmental tests 2020-06-15 19:40:21 +00:00
Lang Martin 069840bef8
scheduler/reconcile: set FollowupEvalID on lost stop_after_client_disconnect (#8105) (#8138)
* scheduler/reconcile: set FollowupEvalID on lost stop_after_client_disconnect

* scheduler/reconcile: thread follupEvalIDs through to results.stop

* scheduler/reconcile: comment typo

* nomad/_test: correct arguments for plan.AppendStoppedAlloc

* scheduler/reconcile: avoid nil, cleanup handleDelayed(Lost|Reschedules)
2020-06-09 17:13:53 -04:00
Mahmood Ali a73cd01a00
Merge pull request #8001 from hashicorp/f-jobs-list-across-nses
endpoint to expose all jobs across all namespaces
2020-05-31 21:28:03 -04:00
Drew Bailey 34871f89be
Oss license support for ent builds (#8054)
* changes necessary to support oss licesning shims

revert nomad fmt changes

update test to work with enterprise changes

update tests to work with new ent enforcements

make check

update cas test to use scheduler algorithm

back out preemption changes

add comments

* remove unused method
2020-05-27 13:46:52 -04:00
Seth Hoenig f6c8db8a8a consul/connect: use task kind to get service name
Fixes #8000

When requesting a Service Identity token from Consul, use the TaskKind
of the Task to get at the service name associated with the task. In
the past using the TaskName worked because it was generated as a sidecar
task with a name that included the service. In the Native context, we
need to get at the service name in a more correct way, i.e. using the
TaskKind which is defined to include the service name.
2020-05-18 13:46:00 -06:00
Mahmood Ali 5ab2d52e27 endpoint to expose all jobs across all namespaces
Allow a `/v1/jobs?all_namespaces=true` to list all jobs across all
namespaces.  The returned list is to contain a `Namespace` field
indicating the job namespace.

If ACL is enabled, the request token needs to be a management token or
have `namespace:list-jobs` capability on all existing namespaces.
2020-05-18 13:50:46 -04:00
Lang Martin d3c4700cd3
server: stop after client disconnect (#7939)
* jobspec, api: add stop_after_client_disconnect

* nomad/state/state_store: error message typo

* structs: alloc methods to support stop_after_client_disconnect

1. a global AllocStates to track status changes with timestamps. We
   need this to track the time at which the alloc became lost
   originally.

2. ShouldClientStop() and WaitClientStop() to actually do the math

* scheduler/reconcile_util: delayByStopAfterClientDisconnect

* scheduler/reconcile: use delayByStopAfterClientDisconnect

* scheduler/util: updateNonTerminalAllocsToLost comments

This was setup to only update allocs to lost if the DesiredStatus had
already been set by the scheduler. It seems like the intention was to
update the status from any non-terminal state, and not all lost allocs
have been marked stop or evict by now

* scheduler/testing: AssertEvalStatus just use require

* scheduler/generic_sched: don't create a blocked eval if delayed

* scheduler/generic_sched_test: several scheduling cases
2020-05-13 16:39:04 -04:00