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Author SHA1 Message Date
Frank Schroeder 4bfcf7b613 dns: replace nameserver lookup with consistent rpc call 
This patch replaces the code which determines the list of servers in the
current cluster with an RPC call to get the list of active consul
service instances which only run on servers.

This replaces the previous implementation which was more complex and
relied on serf messages which can provide a different view than the
consistent response from the raft log.

As a side effect it makes the implementation independent of the server
and the agent which means it works consistently across both. Different
behavior for server and agent was the root cause for the bug in
http://github.com/hashicorp/consul/issue/3047.

Fixes #3407
 2017-08-22 00:02:46 +02:00
Frank Schroeder 8e1f9b9b68 dns: split node lookup from request handling 2017-08-22 00:02:46 +02:00
Frank Schroeder db8ad8922e dns: refactor label by unrolling loop 2017-08-22 00:02:46 +02:00
Frank Schroeder c35206db07 dns: move ttl closer to usage 2017-08-22 00:02:46 +02:00
Frank Schroeder 1d0bbfed9c
agent: move agent/consul/structs to agent/structs 2017-08-09 14:32:12 +02:00
James Phillips 7b4d3d5576
Fixes a vet error. 2017-08-08 16:00:18 -07:00
Kyle Havlovitz 8c2e422074 Merge pull request #3369 from hashicorp/metrics-enhancements 
Add support for labels/filters from go-metrics
 2017-08-08 13:55:30 -07:00
Frank Schroeder 0f4986dcc7
dns: minor cleanups 2017-08-08 13:55:58 +02:00
Kyle Havlovitz 975ded2714
Add support for labels/filters from go-metrics 2017-08-08 01:45:10 -07:00
Preetha Appan 2df084968c Go back to using <nodename>.node.dc.consul as the name of the ns record being returned. 2017-08-07 16:02:33 -05:00
Frank Schroeder b571cb8097
dns: keep NS names in consul domain 2017-08-07 11:11:55 +02:00
Frank Schroeder 7b39af2b2d
dns: postmaster -> hostmaster 2017-08-07 11:11:55 +02:00
Frank Schroeder 98de22e13e
dns: we do not support zone transfers 2017-08-07 11:11:55 +02:00
Frank Schroeder e1bcbc6832
dns: drop CNAME for primary name server 2017-08-07 11:11:55 +02:00
Preetha Appan 393a0eae93
Added test case with IPV6 bind address for NS records, rewrote tests to use verify library and other code review feedback 2017-08-07 11:11:55 +02:00
Preetha Appan 52075bda1c
Added back glue records in NS response, expanded unit test. Also reused same function used in node lookup for adding A/AAAA records in the extra section of the NS response 2017-08-07 11:11:55 +02:00
Preetha Appan c7c4100503
Don't add A records for NS requests, because the record being returned already resolves correctly. Also fixed all the unit tests, and ignored hostnames that don't meet valid dns hostname criteria 2017-08-07 11:11:55 +02:00
Frank Schroeder 450d8a69b5
dns: provide correct SOA and NS responses 
This patch changes the behavior of the DNS server as follows:

* The SOA response contains the SOA record in the Answer section instead
  of the Authority section. It also contains NS records in the Authority
  and the corresponding A glue records in the Extra section.
  In addition, CNAMEs are added to the Extra section to make the
  MNAME of the SOA record resolvable.

  AAAA glue records are not yet supported.

* The NS response returns up to three random servers from the
  consul cluster in the Answer section and the glue A
  records in the Extra section.

  AAAA glue records are not yet supported.
 2017-08-07 11:11:55 +02:00
Preetha Appan bff45ee1da
Unify regex used to identify invalid dns characters 2017-08-07 11:11:55 +02:00
Preetha Appan 6bac9355fd
Use sanitized version of node name of server in NS record, and start with "server" rather than "ns" 2017-08-07 11:11:55 +02:00
Preetha Appan 7e9d683ab1
Removed a copy pasted irrelevant comment, and other code review feedback 2017-08-07 11:11:54 +02:00
Preetha Appan c38906daad
Add NS records and A records for each server. Constructs ns host names using the advertise address of the server. 2017-08-07 11:11:54 +02:00
James Phillips 6e794ea1b3 Adds support for agent-side ACL token management via API instead of config files. (#3324) 
* Adds token store and removes all runtime use of config for ACL tokens.
* Adds a new API for changing agent tokens on the fly.
 2017-07-26 11:03:43 -07:00
Frank Schroeder 53e409758b dns: fix data races in DNS compression tests 
Make the DisableCompression value configurable at runtime
to allow tests to change it without restarting/recreating
the server.
 2017-07-07 09:22:34 +02:00
Frank Schroeder 21a0e94aea agent: refactor: make address translation part of the agent 2017-07-07 09:22:34 +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
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
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 command/agent/dns.go (Browse further)