Commit Graph

650 Commits

Author SHA1 Message Date
Pierre Souchay b672707552 64000 max limit to DNS messages since there is overhead
Added debug log to give information about truncation.
2018-03-07 16:14:41 +01:00
Pierre Souchay 06afb4d02c [BUGFIX] do not break when TCP DNS answer exceeds 64k
It will avoid having discovery broken when having large number
of instances of a service (works with SRV and A* records).

Fixes https://github.com/hashicorp/consul/issues/3850
2018-03-07 10:08:06 +01:00
Mitchell Hashimoto fbac58280e
agent/consul/fsm: begin using testify/assert 2018-03-06 09:48:15 -08:00
Pierre Souchay 09970479b5 Allow to control the number of A/AAAA Record returned by DNS
This allows to have randomized resource records (i.e. each
answer contains only one IP, but the IP changes every request) for
A, AAAA records.

It will fix https://github.com/hashicorp/consul/issues/3355 and
https://github.com/hashicorp/consul/issues/3937

See https://github.com/hashicorp/consul/issues/3937#issuecomment-370610509
for details.

It basically add a new option called `a_record_limit` and will not
return more than a_record_limit when performing A, AAAA or ANY DNS
requests.

The existing `udp_answer_limit` option is still working but should
be considered as deprecated since it works only with DNS clients
not supporting EDNS.
2018-03-06 02:07:42 +01:00
Edd Steel 413cb3d3b5
Re-use defined endpoints for tests 2018-03-03 11:19:18 -08:00
Paul Banks 628dcc9793
Merge pull request #3899 from pierresouchay/fix_blocking_queries_index
Services Indexes modified per service instead of using a global Index
2018-03-02 16:24:43 +00:00
Pierre Souchay 85b73f8163 Simplified error handling for maxIndexForService
* added unit tests to ensure service index is properly garbage collected
* added Upgrade from Version 1.0.6 to higher section in documentation
2018-03-01 14:09:36 +01:00
Paul Banks f7ecbce39a
Fix test running in non-bash shells 2018-02-22 14:06:06 +00:00
Paul Banks 0ee77a5e02
Merge pull request #3900 from hashicorp/fix-monitor-sigint-3891
Fixes #3891: agent monitor no longer unresponsive before logs stream.
2018-02-21 21:28:33 +00:00
Preetha Appan 77d35f1829
Remove extra newline 2018-02-21 13:21:47 -06:00
Preetha Appan 573500dc51
Unit test that calls revokeLeadership twice to make sure its idempotent 2018-02-21 12:48:53 -06:00
Preetha Appan bd270b02ba
Make sure revokeLeadership is called if establishLeadership errors 2018-02-21 12:33:22 -06:00
Alex Dadgar 535842004c Test autopilots start/stop idempotency 2018-02-21 10:19:30 -08:00
Alex Dadgar 4d99696f02 Improve autopilot shutdown to be idempotent 2018-02-20 15:51:59 -08:00
Pierre Souchay e6d85cb36a Fixed comments for function maxIndexForService 2018-02-20 23:57:28 +01:00
Pierre Souchay b26ea3c230 [Revert] Only update services if tags are different
This patch did give some better results, but break watches on
the services of a node.

It is possible to apply the same optimization for nodes than
to services (one index per instance), but it would complicate
further the patch.

Let's do it in another PR.
2018-02-20 23:34:42 +01:00
Pierre Souchay 903e866835 Only update services if tags are different 2018-02-20 23:08:04 +01:00
Pierre Souchay 56d5c0bf22 Enable Raft index optimization per service name on health endpoint
Had to fix unit test in order to check properly indexes.
2018-02-20 01:35:50 +01:00
Paul Banks 69ebbf3e79
Fixes #3891: agent monitor no longer unresponsive before logs stream.
The root cause is actually that the agent's streaming HTTP API didn't flush until the first log line was found which commonly was pretty soon since the default level is INFO. In cases where there were no logs immediately due to level for instance, the client gets stuck in the HTTP code waiting on a response packet from the server before we enter the loop that checks the shutdown channel from the signal handler.

This fix flushes the initial status immediately on the streaming endpoint which lets the client code get into it's expected state where it's listening for shutdown or log lines.
2018-02-19 21:53:10 +00:00
Pierre Souchay ec1b278595 Get only first service to test whether we have to cleanup index of a service 2018-02-19 22:44:49 +01:00
Pierre Souchay 523feb0be4 Fixed comment about raftIndex + use test.Helper() 2018-02-19 19:30:25 +01:00
Pierre Souchay 4c188c1d08 Services Indexes modified per service instead of using a global Index
This patch improves the watches for services on large cluster:
each service has now its own index, such watches on a specific service
are not modified by changes in the global catalog.

It should improve a lot the performance of tools such as consul-template
or libraries performing watches on very large clusters with many
services/watches.
2018-02-19 18:29:22 +01:00
Edd Steel 35c2083422
Clarify comments 2018-02-17 17:46:11 -08:00
Edd Steel 61be181f6f Test every endpoint for OPTIONS/MethodNotFound 2018-02-17 17:34:13 -08:00
Edd Steel 6c33163959 Allow endpoints to handle OPTIONS/MethodNotFound themselves 2018-02-17 17:34:03 -08:00
Edd Steel 4dc9d2ebd7
Initialise `allowedMethods` in init() 2018-02-17 17:31:24 -08:00
Kyle Havlovitz ea452c6032
Fix the coordinate update endpoint not passing the ACL token 2018-02-15 11:58:02 -08:00
Edd Steel 40eefc9f7d
Support OPTIONS requests
- register endpoints with supported methods
- support OPTIONS requests, indicating supported methods
- extract method validation (error 405) from individual endpoints
- on 405 where multiple methods are allowed, create a single Allow
  header with comma-separated values, not multiple Allow headers.
2018-02-12 10:15:31 -08:00
Andrei Burd dbb010c865 adding human readability for dns requests debug log (#3751) 2018-02-11 09:02:28 -06:00
Pierre Souchay 824b72cf90 Merge remote-tracking branch 'origin/master' into service_metadata 2018-02-11 13:20:49 +01:00
Pierre Souchay e99bf584c9 Fixed TestSanitize unit test 2018-02-11 12:11:11 +01:00
James Phillips 37cf6583db
Fixes a panic on TCP-based DNS lookups.
This came in via the monkey patch in #3861.

Fixes #3877
2018-02-08 17:57:41 -08:00
Pierre Souchay f2df4005fe Added unit tests for structs and fixed PartialClone() 2018-02-09 01:37:45 +01:00
James Phillips 4f3b4d0e55
Addresses additional state mutations.
Did a sweep of 84d6ac2d51
and checked them all.
2018-02-07 07:02:10 -08:00
James Phillips ca461f8890
Fixes all the racy output-side updates to tags. 2018-02-06 20:35:55 -08:00
James Phillips e7dd7b2d13
Adds a more robust unit test for index churn. 2018-02-06 20:35:38 -08:00
Pierre Souchay 3acc5b58d4 Added support for Service Metadata 2018-02-07 01:54:42 +01:00
James Phillips 41e3fcf205
Makes server manager shift away from failed servers from Serf events.
Because this code was doing pointer equality checks, it would work for
the case of a failed attempted RPC because the objects are from the
manager itself:

https://github.com/hashicorp/consul/blob/v1.0.3/agent/consul/rpc.go#L283-L302

But the pointer check would always fail for events coming in from the
Serf path because the server object is newly-created:

https://github.com/hashicorp/consul/blob/v1.0.3/agent/router/serf_adapter.go#L14-L40

This means that we didn't proactively shift RPC traffic away from a
failed server, we'd have to wait for an RPC to fail, which exposes
the error to the calling client.

By switching over to a name check vs. a pointer check we get the correct
behavior. We added a DEBUG log as well to help observe this behavior during
integrated testing.

Related to #3863 since the fix here needed the same logic duplicated, owing
to the complicated atomic stuff.

/cc @dadgar for a heads up in case this also affects Nomad.
2018-02-05 17:56:00 -08:00
James Phillips c718459e49
Adds a before/after test for #3845. 2018-02-05 16:18:29 -08:00
James Phillips 5b245c0201
Merge pull request #3845 from 42wim/tagfix
Fix service tags not added to health check. Part two
2018-02-05 16:18:00 -08:00
Kyle Havlovitz 46745eb89b
Add enterprise default config section 2018-02-05 13:33:59 -08:00
James Phillips 0aa05cc5f0
Merge pull request #3855 from hashicorp/pr-3782-slackpad
Adds support for gRPC health checks.
2018-02-02 17:57:27 -08:00
James Phillips 1a08e8c0f1
Changes "TLS" to "GRPCUseTLS" since it only applies to GRPC checks. 2018-02-02 17:29:34 -08:00
Wim 5cc76cce09 Fix service tags not added to health check. Part two 2018-01-29 20:32:44 +01:00
Veselkov Konstantin c2395d9bd0 fix refactoring 2018-01-28 22:53:30 +04:00
Veselkov Konstantin c4ad54e057 fix refactoring 2018-01-28 22:48:21 +04:00
Veselkov Konstantin 05666113a4 remove golint warnings 2018-01-28 22:40:13 +04:00
James Phillips 443250c76c
Improves user lookup error message.
Closes #3188
Closes #3184
2018-01-26 07:56:44 -08:00
Kyle Havlovitz 32dbb51c3b
Remove nonvoter from metadata.Server 2018-01-25 17:08:03 -08:00
James Phillips 38f5b2e7ce
Gets rid of named return parameters.
This wasn't wrong before but we don't generally use this style in
Consul.
2018-01-25 14:29:50 -08:00
James Phillips 1acaaecbdd
Moves non-stdlib includes into their own section. 2018-01-25 14:26:15 -08:00
Kyle Havlovitz 0e76d62846
Reset clusterHealth when autopilot starts 2018-01-23 12:52:28 -08:00
Kyle Havlovitz 6d1dbe6cc4
Move autopilot health loop into leader operations 2018-01-23 11:17:41 -08:00
James Phillips a4c3a3433c
Updates web assets to latest. 2018-01-22 14:46:07 -08:00
Kyle Havlovitz c4528a6110
Merge pull request #3821 from hashicorp/persist-file-handling
Add graceful handling of malformed persisted service/check files.
2018-01-22 12:31:33 -08:00
Kyle Havlovitz bb068b4c93
Merge pull request #3820 from hashicorp/serfwan-port-fix
Enforce a valid port for the Serf WAN since it can't be disabled.
2018-01-19 15:40:56 -08:00
James Phillips 77ab587ae1
Moves the coordinate fetch after the ACL check. 2018-01-19 15:25:22 -08:00
Kyle Havlovitz b651253cb2
Don't remove the files, just log an error 2018-01-19 14:25:51 -08:00
Kyle Havlovitz f191eb2df3
Enforce a valid port for the Serf WAN since it can't be disabled.
Fixes #3817
2018-01-19 14:22:23 -08:00
Kyle Havlovitz 17ec4a9394
Add graceful handling of malformed persisted service/check files.
Previously a change was made to make the file writing atomic,
but that wasn't enough to cover something like an OS crash so we
needed something here to handle the situation more gracefully.

Fixes #1221.
2018-01-19 14:07:36 -08:00
James Hartig 81d0ffc959 Resolve symlinks in config directory
Docker/Openshift/Kubernetes mount the config file as a symbolic link and
IsDir returns true if the file is a symlink. Before calling IsDir, the
symlink should be resolved to determine if it points at a file or
directory.

Fixes #3753
2018-01-12 15:43:38 -05:00
James Phillips ca43623734
Adds the NodeID field back to the /v1/agent/self Config block.
Fixes #3778
2018-01-10 15:17:54 -08:00
James Phillips ff2aae98f4
Adds more info about how to fix the private IP error.
Closes #3790
2018-01-10 09:53:41 -08:00
James Phillips e282e9285c
Fixes crash where body was optional for PQ endpoint (it is not).
Fixes #3791
2018-01-10 09:33:49 -08:00
Dmytro Kostiuchenko a45f6ad740 Add gRPC health-check #3073 2018-01-04 16:42:30 -05:00
Diptanu Choudhury f597d66392 Using labels 2017-12-21 20:30:29 -08:00
Diptanu Choudhury ac50568a1a Added telemetry around Catalog APIs 2017-12-21 16:35:12 -08:00
James Phillips 1cd94dec8a
Updates the checked in web assets. 2017-12-20 19:51:04 -08:00
James Phillips bfce81d721
Updates the built-in web assets. 2017-12-20 17:48:51 -08:00
James Phillips 8fd94a2e7c
Wraps HTTP mux to ban all non-printable characters from paths. 2017-12-20 15:47:53 -08:00
James Phillips 6f09cf48db
Updates the built-in web UI assets. 2017-12-20 13:43:52 -08:00
James Phillips 62e97a6602
Fixes a `go fmt` cleanup. 2017-12-20 13:43:38 -08:00
Kyle Havlovitz 74b0c58831
Fix vet error 2017-12-18 18:04:42 -08:00
Kyle Havlovitz dfc165a47b
Move autopilot initializing to oss file 2017-12-18 18:02:44 -08:00
Kyle Havlovitz 044c38aa7b
Move autopilot setup to a separate file 2017-12-18 16:55:51 -08:00
Kyle Havlovitz 9e1ba6fb4e
Make some final tweaks to autopilot package 2017-12-18 12:26:47 -08:00
Kyle Havlovitz 6b58df5898
Merge pull request #3737 from hashicorp/autopilot-refactor
Move autopilot to a standalone package
2017-12-15 14:09:40 -08:00
James Phillips 262cbbd9ca
Merge pull request #3728 from weiwei04/fix_globalRPC_goroutine_leak
fix globalRPC goroutine leak
2017-12-14 17:54:19 -08:00
James Phillips 518ab954bc
Merge pull request #3642 from yfouquet/master
[Fix] Service tags not added to health checks
2017-12-14 13:59:39 -08:00
James Phillips 47cd775b3d
Works around mapstructure behavior to enable sessions with no checks.
Fixes #3732
2017-12-14 09:07:56 -08:00
Kyle Havlovitz 798aca92c5
Expose IsPotentialVoter for advanced autopilot logic 2017-12-13 17:53:51 -08:00
James Phillips 68c94a5047
Changes maps to merge vs. overwrite when processing configs.
Fixes #3716
2017-12-13 16:06:01 -08:00
Kyle Havlovitz a4ac148077
Merge branch 'master' into autopilot-refactor 2017-12-13 11:54:32 -08:00
Kyle Havlovitz 6c985132de
A few last autopilot adjustments 2017-12-13 11:19:17 -08:00
Kyle Havlovitz 77d92bf15c
More autopilot reorganizing 2017-12-13 10:57:37 -08:00
James Phillips 984de6e2e0
Adds TODOs referencing #3744. 2017-12-13 10:52:06 -08:00
James Phillips 63011dd393
Copies the autopilot settings from the runtime config.
Fixes #3730
2017-12-13 10:32:05 -08:00
Kyle Havlovitz f347c8a531
More refactoring to make autopilot consul-agnostic 2017-12-12 17:46:28 -08:00
Yoann Fouquet f4f7db0059 [Fix] Service tags not added to health checks
Since commit 9685bdcd0ba4b4b3adb04f9c1dd67d637ca7894e, service tags are added to the health checks.
Otherwise, when adding a service, tags are not added to its check.

In updateSyncState, we compare the checks of the local agent with the checks of the catalog.
It appears that the service tags are different (missing in one case), and so the check is synchronized.
That increase the ModifyIndex periodically when nothing changes.

Fixed it by adding serviceTags to the check.

Note that the issue appeared in version 0.8.2.
Looks related to #3259.
2017-12-12 13:39:37 +01:00
Kyle Havlovitz 8546a1d3c6
Move autopilot to a standalone package 2017-12-11 16:45:33 -08:00
James Phillips 32b64575d1
Moves Serf helper into lib to fix import cycle in consul-enterprise. 2017-12-07 16:57:58 -08:00
James Phillips c16cce80bb
Turns of intent queue warnings and enables dynamic queue sizing. 2017-12-07 16:27:06 -08:00
Wei Wei 04531ff0fb fix globalRPC goroutine leak
Signed-off-by: Wei Wei <weiwei.inf@gmail.com>
2017-12-05 11:53:30 +08:00
James Phillips c4bc89a187
Creates a registration mechanism for snapshot and restore. 2017-11-29 18:36:53 -08:00
James Phillips 8571555703
Begins split out of snapshots from the main FSM class. 2017-11-29 18:36:53 -08:00
James Phillips 4eaee8e0ba
Creates a registration mechanism for FSM commands. 2017-11-29 18:36:53 -08:00
James Phillips 3e7ea1931c
Moves the FSM into its own package.
This will help make it clearer what happens when we add some registration
plumbing for the different operations and snapshots.
2017-11-29 18:36:53 -08:00
James Phillips 7f3783f4be
Resolves an FSM snapshot TODO.
This adds checks for sink write calls before we continue the refactor, which
will resolve the other TODO comment we deleted as part of this change.
2017-11-29 18:36:53 -08:00
James Phillips 5a24d37ac0
Creates a registration mechanism for schemas.
This also splits out the registration into the table-specific source
files.
2017-11-29 18:36:52 -08:00
James Phillips 36bb30e67a
Creates a registration mechanism for RPC endpoints. 2017-11-29 18:36:52 -08:00