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Author SHA1 Message Date
Hans Hasselberg 73c4e9f07c
tls: auto_encrypt enables automatic RPC cert provisioning for consul clients (#5597) 2019-06-27 22:22:07 +02:00
Hans Hasselberg d511e86491
agent: enable reloading of tls config (#5419) 
This PR introduces reloading tls configuration. Consul will now be able to reload the TLS configuration which previously required a restart. It is not yet possible to turn TLS ON or OFF with these changes. Only when TLS is already turned on, the configuration can be reloaded. Most importantly the certificates and CAs.
 2019-03-13 10:29:06 +01:00
Hans Hasselberg 75ababb54f
Centralise tls configuration part 1 (#5366) 
In order to be able to reload the TLS configuration, we need one way to generate the different configurations.

This PR introduces a `tlsutil.Configurator` which holds a `tlsutil.Config`. Afterwards it is responsible for rendering every `tls.Config`. In this particular PR I moved `IncomingHTTPSConfig`, `IncomingTLSConfig`, and `OutgoingTLSWrapper` into `tlsutil.Configurator`.

This PR is a pure refactoring - not a single feature added. And not a single test added. I only slightly modified existing tests as necessary.
 2019-02-26 16:52:07 +01:00
Matt Keeler ec9934b6f8 Remaining ACL Unit Tests (#4852) 
* Add leader token upgrade test and fix various ACL enablement bugs

* Update the leader ACL initialization tests.

* Add a StateStore ACL tests for ACLTokenSet and ACLTokenGetBy* functions

* Advertise the agents acl support status with the agent/self endpoint.

* Make batch token upsert CAS’able to prevent consistency issues with token auto-upgrade

* Finish up the ACL state store token tests

* Finish the ACL state store unit tests

Also rename some things to make them more consistent.

* Do as much ACL replication testing as I can.
 2018-10-31 13:00:46 -07:00
Matt Keeler 99e0a124cb
New ACLs (#4791) 
This PR is almost a complete rewrite of the ACL system within Consul. It brings the features more in line with other HashiCorp products. Obviously there is quite a bit left to do here but most of it is related docs, testing and finishing the last few commands in the CLI. I will update the PR description and check off the todos as I finish them over the next few days/week.
Description

At a high level this PR is mainly to split ACL tokens from Policies and to split the concepts of Authorization from Identities. A lot of this PR is mostly just to support CRUD operations on ACLTokens and ACLPolicies. These in and of themselves are not particularly interesting. The bigger conceptual changes are in how tokens get resolved, how backwards compatibility is handled and the separation of policy from identity which could lead the way to allowing for alternative identity providers.

On the surface and with a new cluster the ACL system will look very similar to that of Nomads. Both have tokens and policies. Both have local tokens. The ACL management APIs for both are very similar. I even ripped off Nomad's ACL bootstrap resetting procedure. There are a few key differences though.

    Nomad requires token and policy replication where Consul only requires policy replication with token replication being opt-in. In Consul local tokens only work with token replication being enabled though.
    All policies in Nomad are globally applicable. In Consul all policies are stored and replicated globally but can be scoped to a subset of the datacenters. This allows for more granular access management.
    Unlike Nomad, Consul has legacy baggage in the form of the original ACL system. The ramifications of this are:
        A server running the new system must still support other clients using the legacy system.
        A client running the new system must be able to use the legacy RPCs when the servers in its datacenter are running the legacy system.
        The primary ACL DC's servers running in legacy mode needs to be a gate that keeps everything else in the entire multi-DC cluster running in legacy mode.

So not only does this PR implement the new ACL system but has a legacy mode built in for when the cluster isn't ready for new ACLs. Also detecting that new ACLs can be used is automatic and requires no configuration on the part of administrators. This process is detailed more in the "Transitioning from Legacy to New ACL Mode" section below.
 2018-10-19 12:04:07 -04:00
Matt Keeler dbc407cec9 go fmt changes 2018-06-27 09:07:22 -04:00
Matt Keeler 6ccc4f39db
Merge pull request #4216 from hashicorp/rpc-limiting 
Make RPC limits reloadable
 2018-06-20 09:05:28 -04:00
Guido Iaquinti 3ed73961b3 Attach server.Name label to client.rpc.failed 2018-06-13 14:56:14 +01:00
Guido Iaquinti bda575074e Attach server.ID label to client.rpc.failed 2018-06-13 14:53:44 +01:00
Guido Iaquinti edd6a69541 Client: add metric for failed RPC calls to server 2018-06-13 12:35:45 +01:00
Matt Keeler c5d9c2362f Merge branch 'master' of github.com:hashicorp/consul into rpc-limiting 
# Conflicts:
#	agent/agent.go
#	agent/consul/client.go
 2018-06-11 16:11:36 -04:00
Matt Keeler c589991452 Apply the limits to the clients rpcLimiter 2018-06-11 15:51:17 -04:00
Matt Keeler 14661a417b Allow for easy enterprise/oss coexistence 
Uses struct/interface embedding with the embedded structs/interfaces being empty for oss. Also methods on the server/client types are defaulted to do nothing for OSS
 2018-05-24 10:36:42 -04:00
Kyle Havlovitz 60307ef328
Remove deprecated metric names 2018-05-08 16:23:15 -07:00
James Phillips 8210523b1b
Moves the LAN event handler after the router is created. 
Fixes #3680
 2017-11-10 12:26:48 -08:00
Ryan Slade 6f05ea91a3 Replace time.Now().Sub(x) with time.Since(x) 2017-10-17 20:38:24 +02:00
James Phillips d1ad538345 Makes RPC handling more robust when rolling servers. (#3561) 
* Adds client-side retry for no leader errors.

This paves over the case where the client was connected to the leader
when it loses leadership.

* Adds a configurable server RPC drain time and a fail-fast path for RPCs.

When a server leaves it gets removed from the Raft configuration, so it will
never know who the new leader server ends up being. Without this we'd be
doomed to wait out the RPC hold timeout and then fail. This makes things fail
a little quicker while a sever is draining, and since we added a client retry
AND since the server doing this has already shut down and left the Serf LAN,
clients should retry against some other server.

* Makes the RPC hold timeout configurable.

* Reorders struct members.

* Sets the RPC hold timeout default for test servers.

* Bumps the leave drain time up to 5 seconds.

* Robustifies retries with a simpler client-side RPC hold.

* Reverts untended delete.
 2017-10-10 15:19:50 -07:00
Kyle Havlovitz 0063516e5e
Update metric names and add a legacy config flag 2017-10-04 16:43:27 -07:00
James Phillips c629773b40
Makes the all segments query explict, and the default for consul members. 2017-09-05 12:22:20 -07:00
James Phillips bc9780baad Adds simple rate limiting for client agent RPC calls to Consul servers. (#3440) 
* Added rate limiting for agent RPC calls.
* Initializes the rate limiter based on the config.
* Adds the rate limiter into the snapshot RPC path.
* Adds unit tests for the RPC rate limiter.
* Groups the RPC limit parameters under "limits" in the config.
* Adds some documentation about the RPC limiter.
* Sends a 429 response when the rate limiter kicks in.
* Adds docs for new telemetry.
* Makes snapshot telemetry look like RPC telemetry and cleans up comments.
 2017-09-01 15:02:50 -07:00
Kyle Havlovitz b77a0aa932
Fix some inconsistencies with segment logic and comments 2017-08-30 17:43:46 -07:00
James Phillips 6a6eadd8c7
Adds open source side of network segments (feature is Enterprise-only). 2017-08-30 11:58:29 -07:00
Frank Schroeder d9e2a51887 agent: drop unused code 
This code from http://github.com/hashicorp/consul/pull/3353 is no longer
required.
 2017-08-22 00:02:46 +02:00
Frank Schroeder c38dcf2d17
agent: move agent/consul/agent to agent/metadata 2017-08-09 14:36:52 +02:00
Frank Schroeder 85bdb77d90
agent: move agent/consul/servers to agent/router 2017-08-09 14:36:37 +02:00
Frank Schroeder 1d0bbfed9c
agent: move agent/consul/structs to agent/structs 2017-08-09 14:32:12 +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 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
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 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/client.go (Browse further)