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87 Commits

Author SHA1 Message Date
Preetha Appan 777504ff0e Fixes deadlock between barrier write and leader notify channel read . Fixes #3230 2017-07-05 17:09:18 -05:00
Grégoire Seux 2e7c202ca2 Correctly forward Host header in healthcheck (#3203) 
Host header must be set explicitely on http requests

Change-Id: I91a32f0fb1ec3fbc713adf0e10869797e91172c7
Signed-off-by: Grégoire Seux <g.seux@criteo.com>
 2017-06-29 16:26:08 -07:00
Preetha Appan c872a05922 Fix missing formatting directive causing go vet to fail 2017-06-27 16:32:38 -05:00
Frank Schroeder 913748bcc4
Revert "agent: add allowStale option for HTTP API (#3142)" 
This reverts commit 1e0fd27a74f5b18775ce91a84310430de35a4a80.
 2017-06-27 07:04:55 +02:00
Frank Schröder 5500eb95eb agent: fix DNS recursor tests (#3190) 
The makeRecursor function was using an unreliable mechanism
to start a server with a random port. This patch changes this
so that the server starts on port 0 to let the kernel pick
a free port.

In addition, to similar functions for starting a test DNS
server were folded into one.
 2017-06-25 10:42:37 -07:00
James Phillips fb640d1ffe
Removes some useless comments. 2017-06-25 10:32:35 -07:00
James Phillips 4b85d33ef1 Fixes watch tracking during reloads and fixes address issue. (#3189) 
This patch fixes watch registration through the config file and a broken log line when the watch registration fails. It also plumbs all the watch loading through a common function and tweaks the
unit test to create the watch before the reload.
 2017-06-24 12:52:41 -07:00
James Phillips 2184136284 Changes host-based node IDs from opt-out to opt-in. (#3187) 2017-06-24 09:36:53 -07:00
James Phillips 59621dbccc Revert "discover: move instance discover code into separate package (#3144)" (#3180) 
This reverts commit 26bfb2d00a30bf30ebdd85ba2e1e19f37355853f.
 2017-06-23 01:38:55 -07:00
James Phillips 728971afdb Fixes broken HTTP header and method for health checks. (#3178) 
* Fixes broken HTTP header and method for health checks.
* Adds a fuzz utility and test to make sure copy is complete.
 2017-06-23 01:15:48 -07:00
wojtkiewicz f320bb9083
agent: add allowStale option for HTTP API (#3142) 
This patch adds an "allowStale" option to the HTTP API
configuration which allows stale reads to provide linear
read scalability.

Fixes #3142
 2017-06-22 10:31:13 +02:00
wojtkiewicz 26c8697a40
agent: add "http_config" 
This patch adds an "http_config" object to the config file
and moves the "http_api_response_headers" option there.

"http_api_response_headers" is now deprecated in favor of
"http_config.response_headers"
 2017-06-22 10:31:11 +02:00
James Phillips d2251018d9 Fixes checked in web assets and associated build scripts. (#3173) 2017-06-21 14:43:07 -07:00
Frank Schröder 4bdff5fff4 discover: move instance discover code into separate package (#3144) 
This patch moves the code that discovers instances from metadata
information to github.com/hashicorp/go-discover with
sub-packages for each provider.
 2017-06-21 10:40:38 +02:00
Frank Schröder 04b636d1f4 agent: notify systemd after JoinLAN (#2121) 
This patch adds support for notifying systemd via the
NOTIFY_SOCKET by sending 'READY=1' to the socket after
a successful JoinLAN.

Fixes #2121
 2017-06-21 06:43:55 +02:00
Frank Schroeder f8e52c897e agent: fix 'consul leave' shutdown race (#2880) 
When the agent is triggered to shutdown via an external 'consul leave'
command delivered via the HTTP API then the client expects to receive a
response when the agent is down. This creates a race on when to shutdown
the agent itself like the RPC server, the checks and the state and the
external endpoints like DNS and HTTP.

This patch splits the shutdown process into two parts:

 * shutdown the agent
 * shutdown the endpoints (http and dns)

They can be executed multiple times, concurrently and in any order but
should be executed first agent, then endpoints to provide consistent
behavior across all use cases. Both calls have to be executed for a
proper shutdown.

This could be partially hidden in a single function but would introduce
some magic that happens behind the scenes which one has to know of but
isn't obvious.

Fixes #2880
 2017-06-21 05:52:51 +02:00
Frank Schroeder 75f3add1f3 agent: drop unused constant 2017-06-21 05:42:39 +02:00
Frank Schroeder a1dec8a46f agent: make registerEndpoint private 
This is only used for testing.
 2017-06-21 05:42:39 +02:00
Frank Schroeder d3ab99244b agent: make the RPC endpoint overwrite mechanism more transparent 
This patch hides the RPC handler overwrite mechanism from the
rest of the code so that it works in all cases and that there
is no cooperation required from the tested code, i.e. we can
drop a.getEndpoint().
 2017-06-21 05:42:39 +02:00
Frank Schroeder 27adc31672 agent: rename agent var 2017-06-21 05:42:39 +02:00
Frank Schroeder 3e20a2ba81 agent: move structs into consul/structs pkg 
* CheckDefinition
 * ServiceDefinition
 * CheckType
 2017-06-21 05:42:39 +02:00
Frank Schroeder db78252019 agent: move NotifyGroup into the agent pkg 2017-06-21 05:42:39 +02:00
Frank Schroeder 2c47bc5d5b agent: move conn pool for muxed connections into separate pkg 2017-06-21 05:42:39 +02:00
Frank Schroeder e930b55f71 agent: move the SnapshotReplyFn out of the way 
When splitting up the consul package into server and client
the SnapshotReplyFn needs to be in a separate package to avoid
a circular dependency.
 2017-06-21 05:42:39 +02:00
Frank Schroeder b805a79078 agent: use the delegate interface for local state 2017-06-21 05:42:39 +02:00
Frank Schroeder 586b345767 agent: rename clientServer interface to delegate 2017-06-21 05:42:39 +02:00
preetapan 9e527836be Merge pull request #3154 from hashicorp/issue_2644_redux 
Fix stale reads on server startup. Consistent reads will now wait for up to config.RPCHoldTimeout for the server to get past its raft log, before returning an error. Servers that are starting up will eventually catch up. 
This fixes issue #2644
 2017-06-20 19:47:12 -05:00
Preetha Appan bb559d8e6e Minor fixes per code review 2017-06-20 19:43:07 -05:00
Frank Schroeder 280611d407
Revert "agent: fix 'consul leave' shutdown race (#2880)" 
This reverts commit 90c83a32b586c7d4add8d8ca0096025ecb886a77.
 2017-06-19 21:34:08 +02:00
Frank Schroeder 226a5d3db4 agent: fix 'consul leave' shutdown race (#2880) 
When the agent is triggered to shutdown via an external 'consul leave'
command delivered via the HTTP API then the client expects to receive a
response when the agent is down. This creates a race on when to shutdown
the agent itself like the RPC server, the checks and the state and the
external endpoints like DNS and HTTP. Ideally, the external endpoints
should be shutdown before the internal state but if the goal is to
respond reliably that the agent is down then this is not possible.

This patch splits the agent shutdown into two parts implemented in a
single method to keep it simple and unambiguos for the caller. The first
stage shuts down the internal state, checks, RPC server, ...
synchronously and then triggers the shutdown of the external endpoints
asychronously. This way the caller is guaranteed that the internal state
services are down when Shutdown returns and there remains enough time to
send a response.

Fixes #2880
 2017-06-19 21:24:26 +02:00
Preetha Appan f535a298f3 Added unit test to verify consistentRead method behavior 2017-06-16 11:58:12 -05:00
Preetha Appan f616a8dd06 Code review feedback, fixed major logic bug 2017-06-16 10:49:54 -05:00
Preetha Appan 42d3a3f3db Redo bug fix for stale reads on server startup, leveraging RPCHOldtimeout instead of maxQueryTime, plus tests 2017-06-15 22:41:30 -05:00
Kyle Havlovitz 5e45aec642 Add an option to disable keyring file (#3145) 
Also disables keyring file in dev mode.
 2017-06-15 15:24:04 -07:00
Seth Vargo 10c450c78d Add EDNS0 support (#3131) 
This is a refactor of GH-1980. Originally I tried to do a straight
rebase, but the code has changed too much.
 2017-06-14 16:22:54 -07:00
Preetha Appan ea1f301661 Fixed static asset build target and checked in new executable for assetfs 2017-06-12 12:57:02 -05:00
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