Commit Graph

28 Commits

Author SHA1 Message Date
Ronald dd0e8eec14
copyright headers for agent folder (#16704)
* copyright headers for agent folder

* Ignore test data files

* fix proto files and remove headers in agent/uiserver folder

* ignore deep-copy files
2023-03-28 14:39:22 -04:00
Dan Upton 9fe6c33c0d
xDS Load Balancing (#14397)
Prior to #13244, connect proxies and gateways could only be configured by an
xDS session served by the local client agent.

In an upcoming release, it will be possible to deploy a Consul service mesh
without client agents. In this model, xDS sessions will be handled by the
servers themselves, which necessitates load-balancing to prevent a single
server from receiving a disproportionate amount of load and becoming
overwhelmed.

This introduces a simple form of load-balancing where Consul will attempt to
achieve an even spread of load (xDS sessions) between all healthy servers.
It does so by implementing a concurrent session limiter (limiter.SessionLimiter)
and adjusting the limit according to autopilot state and proxy service
registrations in the catalog.

If a server is already over capacity (i.e. the session limit is lowered),
Consul will begin draining sessions to rebalance the load. This will result
in the client receiving a `RESOURCE_EXHAUSTED` status code. It is the client's
responsibility to observe this response and reconnect to a different server.

Users of the gRPC client connection brokered by the
consul-server-connection-manager library will get this for free.

The rate at which Consul will drain sessions to rebalance load is scaled
dynamically based on the number of proxies in the catalog.
2022-09-09 15:02:01 +01:00
Daniel Upton 497df1ca3b proxycfg: server-local config entry data sources
This is the OSS portion of enterprise PR 2056.

This commit provides server-local implementations of the proxycfg.ConfigEntry
and proxycfg.ConfigEntryList interfaces, that source data from streaming events.

It makes use of the LocalMaterializer type introduced for peering replication,
adding the necessary support for authorization.

It also adds support for "wildcard" subscriptions (within a topic) to the event
publisher, as this is needed to fetch service-resolvers for all services when
configuring mesh gateways.

Currently, events will be emitted for just the ingress-gateway, service-resolver,
and mesh config entry types, as these are the only entries required by proxycfg
— the events will be emitted on topics named IngressGateway, ServiceResolver,
and MeshConfig topics respectively.

Though these events will only be consumed "locally" for now, they can also be
consumed via the gRPC endpoint (confirmed using grpcurl) so using them from
client agents should be a case of swapping the LocalMaterializer for an
RPCMaterializer.
2022-07-04 10:48:36 +01:00
R.B. Boyer 809344a6f5
peering: initial sync (#12842)
- Add endpoints related to peering: read, list, generate token, initiate peering
- Update node/service/check table indexing to account for peers
- Foundational changes for pushing service updates to a peer
- Plumb peer name through Health.ServiceNodes path

see: ENT-1765, ENT-1280, ENT-1283, ENT-1283, ENT-1756, ENT-1739, ENT-1750, ENT-1679,
     ENT-1709, ENT-1704, ENT-1690, ENT-1689, ENT-1702, ENT-1701, ENT-1683, ENT-1663,
     ENT-1650, ENT-1678, ENT-1628, ENT-1658, ENT-1640, ENT-1637, ENT-1597, ENT-1634,
     ENT-1613, ENT-1616, ENT-1617, ENT-1591, ENT-1588, ENT-1596, ENT-1572, ENT-1555

Co-authored-by: R.B. Boyer <rb@hashicorp.com>
Co-authored-by: freddygv <freddy@hashicorp.com>
Co-authored-by: Chris S. Kim <ckim@hashicorp.com>
Co-authored-by: Evan Culver <eculver@hashicorp.com>
Co-authored-by: Nitya Dhanushkodi <nitya@hashicorp.com>
2022-04-21 17:34:40 -05:00
Matt Keeler 3badd4c35c
Add event generation for autopilot state updates (#12626)
Whenever autopilot updates its state it notifies Consul. That notification will then trigger Consul to extract out the ready server information. If the ready servers have changed, then an event will be published to notify any subscribers of the full set of ready servers.

All these ready server event things are contained within an autopilotevents package instead of the consul package to make importing them into the grpc related packages possible
2022-04-19 13:03:03 -04:00
Matt Keeler 3447880091
Enable running autopilot state updates on all servers (#12617)
* Fixes a lint warning about t.Errorf not supporting %w

* Enable running autopilot on all servers

On the non-leader servers all they do is update the state and do not attempt any modifications.

* Fix the RPC conn limiting tests

Technically they were relying on racey behavior before. Now they should be reliable.
2022-04-07 10:48:48 -04:00
R.B. Boyer e27e58c6cc
agent: refactor the agent delegate interface to be partition friendly (#11429) 2021-10-26 15:08:55 -05:00
FFMMM 6433a57d3c
fix autopilot_failure_tolerance, add autopilot metrics test case (#11399)
Signed-off-by: FFMMM <FFMMM@users.noreply.github.com>
2021-10-25 10:55:59 -07:00
FFMMM 7f28301212
fix consul_autopilot_healthy metric emission (#11231)
https://github.com/hashicorp/consul/issues/10730
2021-10-08 10:31:50 -07:00
Krastin Krastev ba13dbf24c
Update autopilot.go
Fixing a minuscule typo in logging
2021-09-20 14:40:58 +02:00
R.B. Boyer d730298f59
state: partition the nodes.uuid and nodes.meta indexes as well (#10882) 2021-08-19 16:17:59 -05:00
Kit Patella 0b18f5612e trim help strings to save a few bytes 2020-11-16 11:02:11 -08:00
Kit Patella af719981f3 finish adding static server metrics 2020-11-13 16:26:08 -08:00
Kit Patella b486c1bce8 add the service name in the agent rather than in the definitions themselves 2020-11-13 13:18:04 -08:00
Kit Patella 9533372ded first pass on agent-configured prometheusDefs and adding defs for every consul metric 2020-11-12 18:12:12 -08:00
Matt Keeler 1f40f51a58
Fix a bunch of linter warnings 2020-11-09 09:22:12 -05:00
Matt Keeler 755fb72994
Switch to using the external autopilot module 2020-11-09 09:22:11 -05:00
Sarah Christoff 8a930f7d3a
Remove failed nodes from serfWAN (#6028)
* Prune Servers from WAN and LAN

* cleaned up and fixed LAN to WAN

* moving things around

* force-leave remove from serfWAN, create pruneSerfWAN

* removed serfWAN remove, reduced complexity, fixed comments

* add another place to remove from serfWAN

* add nil check

* Update agent/consul/server.go

Co-Authored-By: Paul Banks <banks@banksco.de>
2019-06-28 12:40:07 -05:00
Kyle Havlovitz 60307ef328
Remove deprecated metric names 2018-05-08 16:23:15 -07:00
Veselkov Konstantin 05666113a4 remove golint warnings 2018-01-28 22:40:13 +04:00
Kyle Havlovitz 77d92bf15c
More autopilot reorganizing 2017-12-13 10:57:37 -08:00
Kyle Havlovitz f347c8a531
More refactoring to make autopilot consul-agnostic 2017-12-12 17:46:28 -08:00
Kyle Havlovitz 8546a1d3c6
Move autopilot to a standalone package 2017-12-11 16:45:33 -08:00
James Phillips c6e0366c02
Relaxes Autopilot promotion logic. (#3623)
* Relaxes Autopilot promotion logic.

When we defaulted the Raft protocol version to 3 in #3477 we made
the numPeers() routine more strict to only count voters (this is
more conservative and more correct). This had the side effect of
breaking rolling updates because it's at odds with the Autopilot
non-voter promotion logic.

That logic used to wait to only promote to maintain an odd quorum
of servers. During a rolling update (add one new server, wait, and
then kill an old server) the dead server cleanup would still count
the old server as a peer, which is conservative and the right thing
to do, and no longer count the non-voter. This would wait to promote,
so you could get into a stalemate. It is safer to promote early than
remove early, so by promoting as soon as possible we have chosen
that as the solution here.

Fixes #3611

* Gets rid of unnecessary extra not-a-voter check.
2017-10-31 15:16:56 -05:00
Kyle Havlovitz 0063516e5e
Update metric names and add a legacy config flag 2017-10-04 16:43:27 -07:00
Frank Schroeder c38dcf2d17
agent: move agent/consul/agent to agent/metadata 2017-08-09 14:36:52 +02:00
Frank Schroeder 1d0bbfed9c
agent: move agent/consul/structs to agent/structs 2017-08-09 14:32:12 +02:00
Frank Schroeder cd837b0b18 pkg refactor
command/agent/*                  -> agent/*
    command/consul/*                 -> agent/consul/*
    command/agent/command{,_test}.go -> command/agent{,_test}.go
    command/base/command.go          -> command/base.go
    command/base/*                   -> command/*
    commands.go                      -> command/commands.go

The script which did the refactor is:

(
	cd $GOPATH/src/github.com/hashicorp/consul
	git mv command/agent/command.go command/agent.go
	git mv command/agent/command_test.go command/agent_test.go
	git mv command/agent/flag_slice_value{,_test}.go command/
	git mv command/agent .
	git mv command/base/command.go command/base.go
	git mv command/base/config_util{,_test}.go command/
	git mv commands.go command/
	git mv consul agent
	rmdir command/base/

	gsed -i -e 's|package agent|package command|' command/agent{,_test}.go
	gsed -i -e 's|package agent|package command|' command/flag_slice_value{,_test}.go
	gsed -i -e 's|package base|package command|' command/base.go command/config_util{,_test}.go
	gsed -i -e 's|package main|package command|' command/commands.go

	gsed -i -e 's|base.Command|BaseCommand|' command/commands.go
	gsed -i -e 's|agent.Command|AgentCommand|' command/commands.go
	gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/commands.go
	gsed -i -e 's|base\.||' command/commands.go
	gsed -i -e 's|command\.||' command/commands.go

	gsed -i -e 's|command|c|' main.go
	gsed -i -e 's|range Commands|range command.Commands|' main.go
	gsed -i -e 's|Commands: Commands|Commands: command.Commands|' main.go

	gsed -i -e 's|base\.BoolValue|BoolValue|' command/operator_autopilot_set.go
	gsed -i -e 's|base\.DurationValue|DurationValue|' command/operator_autopilot_set.go
	gsed -i -e 's|base\.StringValue|StringValue|' command/operator_autopilot_set.go
	gsed -i -e 's|base\.UintValue|UintValue|' command/operator_autopilot_set.go

	gsed -i -e 's|\bCommand\b|BaseCommand|' command/base.go
	gsed -i -e 's|BaseCommand Options|Command Options|' command/base.go
	gsed -i -e 's|base.Command|BaseCommand|' command/*.go
	gsed -i -e 's|c\.Command|c.BaseCommand|g' command/*.go
	gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/*_test.go
	gsed -i -e 's|base\.||' command/*_test.go

	gsed -i -e 's|\bCommand\b|AgentCommand|' command/agent{,_test}.go
	gsed -i -e 's|cmd.AgentCommand|cmd.BaseCommand|' command/agent.go

	gsed -i -e 's|cli.AgentCommand = new(Command)|cli.Command = new(AgentCommand)|' command/agent_test.go
	gsed -i -e 's|exec.AgentCommand|exec.Command|' command/agent_test.go
	gsed -i -e 's|exec.BaseCommand|exec.Command|' command/agent_test.go
	gsed -i -e 's|NewTestAgent|agent.NewTestAgent|' command/agent_test.go
	gsed -i -e 's|= TestConfig|= agent.TestConfig|' command/agent_test.go
	gsed -i -e 's|: RetryJoin|: agent.RetryJoin|' command/agent_test.go

	gsed -i -e 's|\.\./\.\./|../|' command/config_util_test.go

	gsed -i -e 's|\bverifyUniqueListeners|VerifyUniqueListeners|' agent/config{,_test}.go command/agent.go
	gsed -i -e 's|\bserfLANKeyring\b|SerfLANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
	gsed -i -e 's|\bserfWANKeyring\b|SerfWANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
	gsed -i -e 's|\bNewAgent\b|agent.New|g' command/agent{,_test}.go
	gsed -i -e 's|\bNewAgent|New|' agent/{acl_test,agent,testagent}.go

	gsed -i -e 's|\bAgent\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bBool\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bConfig\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bDefaultConfig\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bDevConfig\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bMergeConfig\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bReadConfigPaths\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bParseMetaPair\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bSerfLANKeyring\b|agent.&|g' command/agent{,_test}.go
	gsed -i -e 's|\bSerfWANKeyring\b|agent.&|g' command/agent{,_test}.go

	gsed -i -e 's|circonus\.agent|circonus|g' command/agent{,_test}.go
	gsed -i -e 's|logger\.agent|logger|g' command/agent{,_test}.go
	gsed -i -e 's|metrics\.agent|metrics|g' command/agent{,_test}.go
	gsed -i -e 's|// agent.Agent|// agent|' command/agent{,_test}.go
	gsed -i -e 's|a\.agent\.Config|a.Config|' command/agent{,_test}.go

	gsed -i -e 's|agent\.AppendSliceValue|AppendSliceValue|' command/{configtest,validate}.go

	gsed -i -e 's|consul/consul|agent/consul|' GNUmakefile

	gsed -i -e 's|\.\./test|../../test|' agent/consul/server_test.go

	# fix imports
	f=$(grep -rl 'github.com/hashicorp/consul/command/agent' * | grep '\.go')
	gsed -i -e 's|github.com/hashicorp/consul/command/agent|github.com/hashicorp/consul/agent|' $f
	goimports -w $f

	f=$(grep -rl 'github.com/hashicorp/consul/consul' * | grep '\.go')
	gsed -i -e 's|github.com/hashicorp/consul/consul|github.com/hashicorp/consul/agent/consul|' $f
	goimports -w $f

	goimports -w command/*.go main.go
)
2017-06-10 18:52:45 +02:00
Renamed from consul/autopilot.go (Browse further)