Commit Graph

315 Commits (717621698d7b883aa05e36031c92b96c103c0f40)

Author SHA1 Message Date
Daniel Nephin 3aec942b17 streaming: default rpc.enable_streaming to true
So that all servers will start the grpc server used by streaming
2021-02-25 14:06:04 -05:00
Daniel Nephin b91c5a8383 config: rename testCase fields
So that their name better reflects their purpose
2021-02-16 14:40:16 -05:00
Daniel Nephin 534631659c config: make TestLoad_IntegrationWithFlags easier to work with
Replace the large table of tests with individual calls to run(). By using
runCase, failure messages will include the line number for the test case, as
well as a line number from the test functions.

Example:
=== FAIL: agent/config TestLoad_IntegrationWithFlags/failing_case (0.01s)
    runtime_test.go:4721: case: failing case
    runtime_test.go:4864: error "data_dir cannot be empty" does not contain "I expected this error"

Previous:
    runtime_test.go:4864: error "data_dir cannot be empty" does not contain "I expected this error"

Without the line number to the testCase data, debugging these tests is
difficult. It is impossible to jump directly to the test case, and
difficult to find the location because of many similarly named cases.
2021-02-16 14:40:16 -05:00
Daniel Nephin bd728df345 move test case iteration to caller
To make the test case logic more obvious
2021-02-16 14:40:16 -05:00
Daniel Nephin f86ceea803 config: remove test cases for impossible scenarios
AEInterval is overridden by NonUserSource, so there is no way for a user
to set this value. These two cases represented impossible real world
scenarios.

Instead the test is replaced with one that shows that the AEInterval can
not be set by config.

This change allows us to remove the hcltail and jsontail fields from
testCase
2021-02-16 14:40:15 -05:00
Daniel Nephin 76787d4dd0 Fix error checking
There were two identical if lines, remove one and use a switch/case so the compiler
can catch this problem.
2021-02-16 14:40:15 -05:00
Daniel Nephin 863551beb4 config: move testing shims to LoadOpts
This will allow us to eventually port these tests to use config.Load instead of
unexported functions.
2021-02-16 14:40:15 -05:00
Daniel Nephin 4411da5ddd Remove patchActual, does not appear to be necessary
also small rename and fix comment
2021-02-16 14:40:15 -05:00
Daniel Nephin 1dcafa51a4 config: make config.TestLoad_FullConfig use config.Load
This commit makes a number of changes that should make
TestLoad_FullConfig easier to work with, and make the test more like
real world scenarios.

* use separate files in testdata/ dir to store the config source.
  Separate files are much easier to edit because editors can syntax
  highlight json/hcl, and it makes strings easier to find. Previously
  trying to find strings would match strings used in other tests.
* use the exported config.Load interface instead of internal NewBuilder
  and BuildAndValidate.
* remove the tail config overrides, which are only necessary with
  nonZero works.
2021-01-27 17:51:53 -05:00
Daniel Nephin a0dd45941b config: Unexport Builder and NewBuilder
This type and constructor are implementation details of config loading.
All callers should use config.Load.
2021-01-27 17:41:53 -05:00
Daniel Nephin 32d36d0dd4 config: replace calls to config.NewBuilder with config.Load
This is another incremental change to reduce config loading to a single
small interface. All calls to NewBuilder can be replaced with Load.
2021-01-27 17:34:43 -05:00
Daniel Nephin 97a577502d config: improve the interface of Load
This commit reduces the interface to Load() a bit, in preparation for
unexporting NewBuilder and having everything call Load.

The three arguments are reduced to a single argument by moving the other
two into the options struct.

The three return values are reduced to two by moving the RuntimeConfig
and Warnings into a LoadResult struct.
2021-01-27 17:34:43 -05:00
Daniel Nephin c500182105 config: Use golden for TestRuntimeConfig_Sanitize
A golden file makes the expected value easier to work with. This change also
removes a number of shims for enterprise and replaces them with a single one
for the golden filename.
2021-01-11 14:34:03 -05:00
Pierre Souchay 7c1b69cbeb
Display a warning when rpc.enable_streaming = true is set on a client (#9530)
* Display a warning when rpc.enable_streaming = true is set on a client

This option has no effect when running as an agent

* Added warning when server starts with use_streaming_backend but without rpc.enable_streaming

* Added unit test
2021-01-08 15:23:23 -05:00
Daniel Nephin 7b45d0baea
Merge pull request #9249 from hashicorp/dnephin/config-tags
config: use fields to detect enterprise-only settings
2021-01-07 19:49:29 -05:00
Daniel Nephin a9285ad76a
Merge pull request #9251 from hashicorp/dnephin/config-cleanup-flags-and-opts
config: move testing shims and cleanup some defaults
2021-01-07 19:11:22 -05:00
Daniel Nephin a9734b69c5 config: remove t.Parallel and some unused fields from tests
Use go-cmp for better diffs in tests
2021-01-07 18:57:52 -05:00
Michael Montgomery ba3fe0c875 Remove unneeded test 2021-01-04 19:47:13 -06:00
Michael Montgomery e4f603dfae Merge branch 'master' into 6074-allow-config-MaxHeaderBytes 2020-12-30 14:14:05 -06:00
Michael Montgomery 817903b925 Fixed failing tests
Removed use of `NewTestAgent`, per review comment
Removed CLI flag, per review comment
Updated website documentation
Added changelog entry
2020-12-30 14:09:50 -06:00
Daniel Nephin b9e60c0775 testing: skip slow tests with -short
Add a skip condition to all tests slower than 100ms.

This change was made using `gotestsum tool slowest` with data from the
last 3 CI runs of master.
See https://github.com/gotestyourself/gotestsum#finding-and-skipping-slow-tests

With this change:

```
$ time go test -count=1 -short ./agent
ok      github.com/hashicorp/consul/agent       0.743s

real    0m4.791s

$ time go test -count=1 -short ./agent/consul
ok      github.com/hashicorp/consul/agent/consul        4.229s

real    0m8.769s
```
2020-12-07 13:42:55 -05:00
Daniel Nephin 78f767e78c config: move testing shims to BuilderOpts
And remove the devMode field from builder.

This change helps make the Builder state more explicit by moving inputs to the BuilderOps struct,
leaving only fields that can change during Builder.Build on the Builder struct.
2020-11-20 18:31:10 -05:00
Daniel Nephin 0a44906fe3 config: Use LiteralSource for some defaults
Using the LiteralSource makes it much easier to find default values, because an IDE reports
the location of a default. With an HCL string they are harder to discover.

Also removes unnecessary mapstructure.Decodes of constant values.
2020-11-20 18:14:17 -05:00
Michael Montgomery 585c84e9ff Merge branch 'master' into 6074-allow-config-MaxHeaderBytes 2020-11-20 07:43:53 -06:00
Matt Keeler 66fd23d67f
Refactor to call non-voting servers read replicas (#9191)
Co-authored-by: Kit Patella <kit@jepsen.io>
2020-11-17 10:53:57 -05:00
Kit Patella 8e554ee74b Merge branch 'mkcp/telemetry/add-all-metric-definitions' of ssh://github.com/hashicorp/consul into mkcp/telemetry/add-all-metric-definitions 2020-11-16 15:26:12 -08:00
Kit Patella ad4cebc1d8 fix some tests that were broken from the TelemetryConfig change 2020-11-16 15:22:36 -08:00
Kit Patella fc30f07cc7
linting: sort and group import 2020-11-16 14:17:24 -08:00
Kit Patella 2fe021f03c update runtime_test to handle PrometheusOpts expiry field change 2020-11-16 14:16:12 -08:00
Matt Keeler c048e86bb2
Switch to using the external autopilot module 2020-11-09 09:22:11 -05:00
R.B. Boyer 8e616a93c1
agent: sanitize ui metrics proxy header values on agent/self endpoint (#9104) 2020-11-05 13:25:27 -06:00
R.B. Boyer a66c4591d7
agent: introduce path allow list for requests going through the metrics proxy (#9059)
Added a new option `ui_config.metrics_proxy.path_allowlist`. This defaults to `["/api/v1/query", "/api/v1/query_range"]` when the metrics provider is set to `prometheus`.

Requests that do not use one of the allow-listed paths (via exact match) get a 403 Forbidden response instead.
2020-10-30 16:49:54 -05:00
Michael Montgomery 5b6ac035ff Resolves #6074. Adds new option to configure HTTP Server's MaxHeaderBytes with option `-http-max-header-bytes`
Adds tests for behavior
2020-10-29 12:38:19 -05:00
Daniel Nephin 853667e7d8 health: change the name of UseStreamingBackend config
Remove it from the cache section, and update the docs.
2020-10-23 17:47:01 -04:00
Daniel Nephin ea77eccb14
Merge pull request #8825 from hashicorp/streaming/add-config
streaming: add config and docs
2020-10-09 14:33:58 -04:00
Daniel Nephin e7d505dc33 config: add field for enabling streaming in the client
agent: register the new streaming cache-type
2020-10-09 14:11:34 -04:00
Matt Keeler 0d8bf9c62c
Remove oss/ent divergence of runtime_test.go (#8903) 2020-10-09 10:45:11 -04:00
Kit Patella adeabf2399
Merge pull request #8877 from hashicorp/mkcp/telemetry/consul.api.http
Add flag for disabling 1.9 metrics backwards compatibility and warnings when set to default
2020-10-08 13:22:37 -07:00
Matt Keeler 38f5ddce2a
Add per-agent reconnect timeouts (#8781)
This allows for client agent to be run in a more stateless manner where they may be abruptly terminated and not expected to come back. If advertising a per-agent reconnect timeout using the advertise_reconnect_timeout configuration when that agent leaves, other agents will wait only that amount of time for the agent to come back before reaping it.

This has the advantageous side effect of causing servers to deregister the node/services/checks for that agent sooner than if the global reconnect_timeout was used.
2020-10-08 15:02:19 -04:00
Daniel Nephin b93577c94f config: add field for enabling streaming RPC endpoint 2020-10-08 12:11:20 -04:00
Kit Patella 7fe2f80b4b add config flag to disable 1.9 metrics backwards compatibility. Add warnings on start and reload on default value 2020-10-07 17:12:52 -07:00
R.B. Boyer a2a8e9c783
connect: intentions are now managed as a new config entry kind "service-intentions" (#8834)
- Upgrade the ConfigEntry.ListAll RPC to be kind-aware so that older
copies of consul will not see new config entries it doesn't understand
replicate down.

- Add shim conversion code so that the old API/CLI method of interacting
with intentions will continue to work so long as none of these are
edited via config entry endpoints. Almost all of the read-only APIs will
continue to function indefinitely.

- Add new APIs that operate on individual intentions without IDs so that
the UI doesn't need to implement CAS operations.

- Add a new serf feature flag indicating support for
intentions-as-config-entries.

- The old line-item intentions way of interacting with the state store
will transparently flip between the legacy memdb table and the config
entry representations so that readers will never see a hiccup during
migration where the results are incomplete. It uses a piece of system
metadata to control the flip.

- The primary datacenter will begin migrating intentions into config
entries on startup once all servers in the datacenter are on a version
of Consul with the intentions-as-config-entries feature flag. When it is
complete the old state store representations will be cleared. We also
record a piece of system metadata indicating this has occurred. We use
this metadata to skip ALL of this code the next time the leader starts
up.

- The secondary datacenters continue to run the old intentions
replicator until all servers in the secondary DC and primary DC support
intentions-as-config-entries (via serf flag). Once this condition it met
the old intentions replicator ceases.

- The secondary datacenters replicate the new config entries as they are
migrated in the primary. When they detect that the primary has zeroed
it's old state store table it waits until all config entries up to that
point are replicated and then zeroes its own copy of the old state store
table. We also record a piece of system metadata indicating this has
occurred. We use this metadata to skip ALL of this code the next time
the leader starts up.
2020-10-06 13:24:05 -05:00
Kit Patella f5c51ae13b remove consul.api.http from filtered metric prefixes 2020-10-02 14:16:02 -07:00
Kit Patella 52451cf846
Merge pull request #8271 from coignetp/http-metrics-label
Use method and path as labels for http metrics
2020-10-02 13:41:48 -07:00
Paul Banks d0c160130b
Merge pull request #8694 from hashicorp/ui-config-metrics
Add config changes for UI metrics
2020-10-01 17:38:03 +01:00
R.B. Boyer 9801ef8eb1
agent: enable enable_central_service_config by default (#8746) 2020-10-01 09:19:14 -05:00
Paul Banks f6d55e1d25
Fix reload test; address other PR feedback 2020-09-30 18:00:07 +01:00
Paul Banks 526bab6164
Add config changes for UI metrics 2020-09-30 17:59:16 +01:00
Daniel Nephin 4c9ed41eab
Merge pull request #8554 from hashicorp/dnephin/agent-setup-persisted-tokens
agent: move token persistence from agent into token.Store
2020-09-03 17:29:21 -04:00
R.B. Boyer 119e945c3e
connect: all config entries pick up a meta field (#8596)
Fixes #8595
2020-09-02 14:10:25 -05:00
Daniel Nephin f1a41318d7 token: OSS support for enterprise tokens 2020-08-31 15:10:15 -04:00
Daniel Nephin 629e4aaa65 config: use token.Config for ACLToken config
Using the target Config struct reduces the amount of copying and
translating of configuration structs.
2020-08-31 15:10:15 -04:00
R.B. Boyer d1843456d2
agent: ensure that we normalize bootstrapped config entries (#8547) 2020-08-27 11:37:25 -05:00
Daniel Nephin e16375216d config: use logging.Config in RuntimeConfig
To add structure to RuntimeConfig, and remove the need to translate into a third type.
2020-08-19 13:21:00 -04:00
Daniel Nephin 63bad36de7 testing: disable global metrics sink in tests
This might be better handled by allowing configuration for the InMemSink interval and retail, and disabling
the global. For now this is a smaller change to remove the goroutine leak caused by tests because go-metrics
does not provide any way of shutting down the global goroutine.
2020-08-18 19:04:57 -04:00
Daniel Nephin 35f1ecee0b config: Move remote-script-checks warning to config
Previously it was done in Agent.Start, but it can be done much earlier
2020-08-17 17:39:49 -04:00
Daniel Nephin 27b36bfc4e config: move NodeName validation to config validation
Previsouly it was done in Agent.Start, which is much later then it needs to be.

The new 'dns' package was required, because otherwise there would be an
import cycle. In the future we should move more of the dns server into
the dns package.
2020-08-17 17:25:02 -04:00
Daniel Nephin b4015969c9
Merge pull request #8515 from hashicorp/dnephin/unexport-testing-shims
config: unexport fields and resolve TODOs in config.Builder
2020-08-17 16:03:07 -04:00
Daniel Nephin d68edcecf4 testing: Remove all the defer os.Removeall
Now that testutil uses t.Cleanup to remove the directory the caller no longer has to manage
the removal
2020-08-14 19:58:53 -04:00
Daniel Nephin 8a4d292c8e config: unexport and resolve TODOs in config.Builder
- unexport testing shims, and document their purpose
- resolve a TODO by moving validation to NewBuilder and storing the one
  field that is used instead of all of Options
- create a slice with the correct size to avoid extra allocations
2020-08-14 19:23:32 -04:00
Daniel Nephin 38980ebb4c config: Make Source an interface
This will allow us to accept config from auto-config without needing to
go through a serialziation cycle.
2020-08-10 12:46:28 -04:00
Matt Keeler 67dec3b609
Require token replication to be enabled in secondary dcs when ACLs are enabled with AutoConfig (#8451)
AutoConfig will generate local tokens for clients and the ability to use local tokens is gated off of token replication being enabled and being configured with a replication token. Therefore we already have a hard requirement on having token replication enabled, this commit just makes sure to surface that to the operator instead of having to discern what the issue is from RPC errors.
2020-08-07 10:20:27 -04:00
Hans Hasselberg d316cd06c1
auto_config implies connect (#8433) 2020-08-07 12:02:02 +02:00
Matt Keeler dbb461a5d3
Allow setting verify_incoming* when using auto_encrypt or auto_config (#8394)
Ensure that enabling AutoConfig sets the tls configurator properly

This also refactors the TLS configurator a bit so the naming doesn’t imply only AutoEncrypt as the source of the automatically setup TLS cert info.
2020-07-30 10:15:12 -04:00
Matt Keeler 34034b76f5
Agent Auto Config: Implement Certificate Generation (#8360)
Most of the groundwork was laid in previous PRs between adding the cert-monitor package to extracting the logic of signing certificates out of the connect_ca_endpoint.go code and into a method on the server.

This also refactors the auto-config package a bit to split things out into multiple files.
2020-07-28 15:31:48 -04:00
Pierre Souchay 505de6dc29
Added ratelimit to handle throtling cache (#8226)
This implements a solution for #7863

It does:

    Add a new config cache.entry_fetch_rate to limit the number of calls/s for a given cache entry, default value = rate.Inf
    Add cache.entry_fetch_max_burst size of rate limit (default value = 2)

The new configuration now supports the following syntax for instance to allow 1 query every 3s:

    command line HCL: -hcl 'cache = { entry_fetch_rate = 0.333}'
    in JSON

{
  "cache": {
    "entry_fetch_rate": 0.333
  }
}
2020-07-27 23:11:11 +02:00
Matt Keeler 2ee9fe0a4d
Move generation of the CA Configuration from the agent code into a method on the RuntimeConfig (#8363)
This allows this to be reused elsewhere.
2020-07-23 16:05:28 -04:00
Paul Coignet 1d75a8fb50
Fix tests 2020-07-23 11:04:10 +02:00
Matt Keeler 4a5b352c18
Require enabling TLS to enable Auto Config (#8159)
On the servers they must have a certificate.

On the clients they just have to set verify_outgoing to true to attempt TLS connections for RPCs.

Eventually we may relax these restrictions but right now all of the settings we push down (acl tokens, acl related settings, certificates, gossip key) are sensitive and shouldn’t be transmitted over an unencrypted connection. Our guides and docs should recoommend verify_server_hostname on the clients as well.

Another reason to do this is weird things happen when making an insecure RPC when TLS is not enabled. Basically it tries TLS anyways. We should probably fix that to make it clearer what is going on.
2020-06-19 16:38:14 -04:00
Matt Keeler d6e05482ab
Allow cancelling startup when performing auto-config (#8157)
Co-authored-by: Daniel Nephin <dnephin@hashicorp.com>
2020-06-19 15:16:00 -04:00
Matt Keeler b0fcf86140 Change auto config authorizer to allow for future extension
The envisioned changes would allow extra settings to enable dynamically defined auth methods to be used instead of  or in addition to the statically defined one in the configuration.
2020-06-18 15:22:24 -04:00
Daniel Nephin 692a4a8fc8
Merge pull request #7762 from hashicorp/dnephin/warn-on-unknown-service-file
config: warn if a config file is being skipped because of its file extension
2020-06-17 15:14:40 -04:00
Daniel Nephin be29d6bf75 config: warn when a config file is skipped
All commands which read config (agent, services, and validate) will now
print warnings when one of the config files is skipped because it did
not match an expected format.

Also ensures that config validate prints all warnings.
2020-06-17 13:08:54 -04:00
Daniel Nephin a9851e1812
Merge pull request #8070 from hashicorp/dnephin/add-gofmt-simplify
ci: Enable gofmt simplify
2020-06-16 17:18:38 -04:00
Matt Keeler 9f7b22a5eb
Agent Auto Configuration: Configuration Syntax Updates (#8003) 2020-06-16 15:03:22 -04:00
Daniel Nephin 068b43df90 Enable gofmt simplify
Code changes done automatically with 'gofmt -s -w'
2020-06-16 13:21:11 -04:00
Daniel Nephin 476b57fe22 config: refactor to consolidate all File->Source loading
Previously the logic for reading ConfigFiles and produces Sources was split
between NewBuilder and Build. This commit moves all of the logic into NewBuilder
so that Build() can operate entirely on Sources.

This change is in preparation for logging warnings when files have an
unsupported extension.

It also reduces the scope of BuilderOpts, and gets us very close to removing
Builder.options.
2020-06-16 12:52:23 -04:00
Daniel Nephin 77101eee82 config: rename Flags to BuilderOpts
Flags is an overloaded term in this context. It generally is used to
refer to command line flags. This struct, however, is a data object
used as input to the construction.

It happens to be partially populated by command line flags, but
otherwise has very little to do with them.

Renaming this struct should make the actual responsibility of this struct
more obvious, and remove the possibility that it is confused with
command line flags.

This change is in preparation for adding additional fields to
BuilderOpts.
2020-06-16 12:51:19 -04:00
Daniel Nephin 85e0338136 config: remove Args field from Flags
This field was populated for one reason, to test that it was empty.
Of all the callers, only a single one used this functionality. The rest
constructed a `Flags{}` struct which did not set Args.

I think this shows that the logic was in the wrong place. Only the agent
command needs to care about validating the args.

This commit removes the field, and moves the logic to the one caller
that cares.

Also fix some comments.
2020-06-16 12:49:53 -04:00
Daniel Nephin 8ec029ae6a Update comments that reference PatchSliceOfMaps
To reference decode.HookWeakDecodeFromSlice instead.

Also removes a step from the adding config fields checklist which is
no longer necessary.
2020-06-09 17:43:05 -04:00
Hans Hasselberg 72f92ae7ca
agent: add option to disable agent cache for HTTP endpoints (#8023)
This allows the operator to disable agent caching for the http endpoint.
It is on by default for backwards compatibility and if disabled will
ignore the url parameter `cached`.
2020-06-08 10:08:12 +02:00
Daniel Nephin 99eb583ebc
Replace goe/verify.Values with testify/require.Equal (#7993)
* testing: replace most goe/verify.Values with require.Equal

One difference between these two comparisons is that go/verify considers
nil slices/maps to be equal to empty slices/maps, where as testify/require
does not, and does not appear to provide any way to enable that behaviour.

Because of this difference some expected values were changed from empty
slices to nil slices, and some calls to verify.Values were left.

* Remove github.com/pascaldekloe/goe/verify

Reduce the number of assertion packages we use from 2 to 1
2020-06-02 12:41:25 -04:00
R.B. Boyer ffb9c7d6f7
acl: remove the deprecated `acl_enforce_version_8` option (#7991)
Fixes #7292
2020-05-29 16:16:03 -05:00
Pierre Souchay e9d176db2a
Allow to restrict servers that can join a given Serf Consul cluster. (#7628)
Based on work done in https://github.com/hashicorp/memberlist/pull/196
this allows to restrict the IP ranges that can join a given Serf cluster
and be a member of the cluster.

Restrictions on IPs can be done separatly using 2 new differents flags
and config options to restrict IPs for LAN and WAN Serf.
2020-05-20 11:31:19 +02:00
Kit Patella 10b3478a4d agent/config: include Audit struct as a pointer on Config, fix tests 2020-05-11 14:13:05 -07:00
Matt Keeler cbe3a70f56
Update enterprise configurations to be in OSS
This will emit warnings about the configs not doing anything but still allow them to be parsed.

This also added the warnings for enterprise fields that we already had in OSS but didn’t change their enforcement behavior. For example, attempting to use a network segment will cause a hard error in OSS.
2020-05-04 10:21:05 -04:00
Hans Hasselberg 1194fe441f
auto_encrypt: add validations for auto_encrypt.{tls,allow_tls} (#7704)
Fixes https://github.com/hashicorp/consul/issues/7407.
2020-04-24 15:51:38 +02:00
Pierre Souchay 4a6569a4e3
tests: change default http_max_conns_per_client to 250 to ease tests (#7625)
On recent Mac OS versions, the ulimit defaults to 256 by default, but many
systems (eg: some Linux distributions) often limit this value to 1024.

On validation of configuration, Consul now validates that the number of
allowed files descriptors is bigger than http_max_conns_per_client.

This make some unit tests failing on Mac OS.
Use a less important value in unit test, so tests runs well by default
on Mac OS without need for tuning the OS.
2020-04-09 11:11:42 +02:00
Pierre Souchay 54b22c638d
config: allow running `consul agent -dev -ui-dir=some_path` (#7525)
When run in with `-dev` in DevMode, it is not possible to replace
the embeded UI with another one because `-dev` implies `-ui`.

This commit allows this an slightly change the error message
about Consul 0.7.0 which is very old and does not apply to
current version anyway.
2020-03-31 22:36:20 +02:00
Hans Hasselberg 7777891aa6
tls: remove old ciphers (#7282)
Following advice from:
https://github.com/ssllabs/research/wiki/SSL-and-TLS-Deployment-Best-Practices, this PR removes old ciphers.
2020-03-10 21:44:26 +01:00
R.B. Boyer 6adad71125
wan federation via mesh gateways (#6884)
This is like a Möbius strip of code due to the fact that low-level components (serf/memberlist) are connected to high-level components (the catalog and mesh-gateways) in a twisty maze of references which make it hard to dive into. With that in mind here's a high level summary of what you'll find in the patch:

There are several distinct chunks of code that are affected:

* new flags and config options for the server

* retry join WAN is slightly different

* retry join code is shared to discover primary mesh gateways from secondary datacenters

* because retry join logic runs in the *agent* and the results of that
  operation for primary mesh gateways are needed in the *server* there are
  some methods like `RefreshPrimaryGatewayFallbackAddresses` that must occur
  at multiple layers of abstraction just to pass the data down to the right
  layer.

* new cache type `FederationStateListMeshGatewaysName` for use in `proxycfg/xds` layers

* the function signature for RPC dialing picked up a new required field (the
  node name of the destination)

* several new RPCs for manipulating a FederationState object:
  `FederationState:{Apply,Get,List,ListMeshGateways}`

* 3 read-only internal APIs for debugging use to invoke those RPCs from curl

* raft and fsm changes to persist these FederationStates

* replication for FederationStates as they are canonically stored in the
  Primary and replicated to the Secondaries.

* a special derivative of anti-entropy that runs in secondaries to snapshot
  their local mesh gateway `CheckServiceNodes` and sync them into their upstream
  FederationState in the primary (this works in conjunction with the
  replication to distribute addresses for all mesh gateways in all DCs to all
  other DCs)

* a "gateway locator" convenience object to make use of this data to choose
  the addresses of gateways to use for any given RPC or gossip operation to a
  remote DC. This gets data from the "retry join" logic in the agent and also
  directly calls into the FSM.

* RPC (`:8300`) on the server sniffs the first byte of a new connection to
  determine if it's actually doing native TLS. If so it checks the ALPN header
  for protocol determination (just like how the existing system uses the
  type-byte marker).

* 2 new kinds of protocols are exclusively decoded via this native TLS
  mechanism: one for ferrying "packet" operations (udp-like) from the gossip
  layer and one for "stream" operations (tcp-like). The packet operations
  re-use sockets (using length-prefixing) to cut down on TLS re-negotiation
  overhead.

* the server instances specially wrap the `memberlist.NetTransport` when running
  with gateway federation enabled (in a `wanfed.Transport`). The general gist is
  that if it tries to dial a node in the SAME datacenter (deduced by looking
  at the suffix of the node name) there is no change. If dialing a DIFFERENT
  datacenter it is wrapped up in a TLS+ALPN blob and sent through some mesh
  gateways to eventually end up in a server's :8300 port.

* a new flag when launching a mesh gateway via `consul connect envoy` to
  indicate that the servers are to be exposed. This sets a special service
  meta when registering the gateway into the catalog.

* `proxycfg/xds` notice this metadata blob to activate additional watches for
  the FederationState objects as well as the location of all of the consul
  servers in that datacenter.

* `xds:` if the extra metadata is in place additional clusters are defined in a
  DC to bulk sink all traffic to another DC's gateways. For the current
  datacenter we listen on a wildcard name (`server.<dc>.consul`) that load
  balances all servers as well as one mini-cluster per node
  (`<node>.server.<dc>.consul`)

* the `consul tls cert create` command got a new flag (`-node`) to help create
  an additional SAN in certs that can be used with this flavor of federation.
2020-03-09 15:59:02 -05:00
Kim Ngo a8f4123d37
agent/txn_endpoint: configure max txn request length (#7388)
configure max transaction size separately from kv limit
2020-03-05 15:42:37 -06:00
Hans Hasselberg 315d57bfb1
agent: sensible keyring error (#7272)
Fixes #7231. Before an agent would always emit a warning when there is
an encrypt key in the configuration and an existing keyring stored,
which is happening on restart.

Now it only emits that warning when the encrypt key from the
configuration is not part of the keyring.
2020-02-13 20:35:09 +01:00
Hans Hasselberg cb0f94487c
config: increase http_max_conns_per_client default to 200 (#7289) 2020-02-13 16:27:33 +01:00
Akshay Ganeshen 8beb716414
feat: support sending body in HTTP checks (#6602) 2020-02-10 09:27:12 -07:00
Matt Keeler 9e5fd7f925
OSS Changes for various config entry namespacing bugs (#7226) 2020-02-06 10:52:25 -05:00
Freddy cb77fc6d01
Add managed service provider token (#7218)
Stubs for enterprise-only ACL token to be used by managed service providers.
2020-02-04 13:58:56 -07:00
Hans Hasselberg 5531678e9e
Security fixes (#7182)
* Mitigate HTTP/RPC Services Allow Unbounded Resource Usage

Fixes #7159.

Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com>
Co-authored-by: Paul Banks <banks@banksco.de>
2020-01-31 11:19:37 -05:00
Chris Piraino 401221de58
Allow users to configure either unstructured or JSON logging (#7130)
* hclog Allow users to choose between unstructured and JSON logging
2020-01-28 17:50:41 -06:00
R.B. Boyer 0f44bcd3d8
agent: default the primary_datacenter to the datacenter if not configured (#7111)
Something similar already happens inside of the server
(agent/consul/server.go) but by doing it in the general config parsing
for the agent we can have agent-level code rely on the PrimaryDatacenter
field, too.
2020-01-23 09:59:31 -06:00