Commit Graph

595 Commits

Author SHA1 Message Date
cskh 15b40f36f3
Use safeio to write server metadata file (#20101)
* Use safeio to write server metadata file

* guard the conversion
2024-01-05 14:46:19 -05:00
Derek Menteer 8f4c43727d
[NET-5916] Fix locality-aware routing config and tests (CE) (#19483)
Fix locality-aware routing config and tests
2023-11-02 14:05:06 -05:00
John Murret f0cf8f2f40
NET-6294 - v1 Agentless proxycfg datasource errors after v2 changes (#19365) 2023-10-27 14:06:38 -06:00
Derek Menteer 48c4a5b736
Add grpc keepalive configuration. (#19339)
Prior to the introduction of this configuration, grpc keepalive messages were
sent after 2 hours of inactivity on the stream. This posed issues in various
scenarios where the server-side xds connection balancing was unaware that envoy
instances were uncleanly killed / force-closed, since the connections would
only be cleaned up after ~5 minutes of TCP timeouts occurred. Setting this
config to a 30 second interval with a 20 second timeout ensures that at most,
it should take up to 50 seconds for a dead xds connection to be closed.
2023-10-24 08:05:31 -05:00
R.B. Boyer b9ab63c55d
server: when the v2 catalog experiment is enabled reject api and rpc requests that are for the v1 catalog (#19129)
When the v2 catalog experiment is enabled the old v1 catalog apis will be
forcibly disabled at both the API (json) layer and the RPC (msgpack) layer.
This will also disable anti-entropy as it uses the v1 api.

This includes all of /v1/catalog/*, /v1/health/*, most of /v1/agent/*,
/v1/config/*, and most of /v1/internal/*.
2023-10-11 10:44:03 -05:00
Eric Haberkorn 170417ac97
Honor Default Traffic Permissions in V2 (#18886)
wire up v2 default traffic permissions
2023-09-19 10:42:32 -04:00
Nitya Dhanushkodi 78b170ad50
xds controller: setup watches for and compute leaf cert references in ProxyStateTemplate, and wire up leaf cert manager dependency (#18756)
* Refactors the leafcert package to not have a dependency on agent/consul and agent/cache to avoid import cycles. This way the xds controller can just import the leafcert package to use the leafcert manager.

The leaf cert logic in the controller:
* Sets up watches for leaf certs that are referenced in the ProxyStateTemplate (which generates the leaf certs too).
* Gets the leaf cert from the leaf cert cache
* Stores the leaf cert in the ProxyState that's pushed to xds
* For the cert watches, this PR also uses a bimapper + a thin wrapper to map leaf cert events to related ProxyStateTemplates

Since bimapper uses a resource.Reference or resource.ID to map between two resource types, I've created an internal type for a leaf certificate to use for the resource.Reference, since it's not a v2 resource.
The wrapper allows mapping events to resources (as opposed to mapping resources to resources)

The controller tests:
Unit: Ensure that we resolve leaf cert references
Lifecycle: Ensure that when the CA is updated, the leaf cert is as well

Also adds a new spiffe id type, and adds workload identity and workload identity URI to leaf certs. This is so certs are generated with the new workload identity based SPIFFE id.

* Pulls out some leaf cert test helpers into a helpers file so it
can be used in the xds controller tests.
* Wires up leaf cert manager dependency
* Support getting token from proxytracker
* Add workload identity spiffe id type to the authorize and sign functions



---------

Co-authored-by: John Murret <john.murret@hashicorp.com>
2023-09-12 12:56:43 -07:00
John Murret 62062fd4fd
NET-5132 - Configure multiport routing for connect proxies in TProxy mode (#18606)
* mesh-controller: handle L4 protocols for a proxy without upstreams

* sidecar-controller: Support explicit destinations for L4 protocols and single ports.

* This controller generates and saves ProxyStateTemplate for sidecar proxies.
* It currently supports single-port L4 ports only.
* It keeps a cache of all destinations to make it easier to compute and retrieve destinations.
* It will update the status of the pbmesh.Upstreams resource if anything is invalid.

* endpoints-controller: add workload identity to the service endpoints resource

* small fixes

* review comments

* Address PR comments

* sidecar-proxy controller: Add support for transparent proxy

This currently does not support inferring destinations from intentions.

* PR review comments

* mesh-controller: handle L4 protocols for a proxy without upstreams

* sidecar-controller: Support explicit destinations for L4 protocols and single ports.

* This controller generates and saves ProxyStateTemplate for sidecar proxies.
* It currently supports single-port L4 ports only.
* It keeps a cache of all destinations to make it easier to compute and retrieve destinations.
* It will update the status of the pbmesh.Upstreams resource if anything is invalid.

* endpoints-controller: add workload identity to the service endpoints resource

* small fixes

* review comments

* Make sure endpoint refs route to mesh port instead of an app port

* Address PR comments

* fixing copyright

* tidy imports

* sidecar-proxy controller: Add support for transparent proxy

This currently does not support inferring destinations from intentions.

* tidy imports

* add copyright headers

* Prefix sidecar proxy test files with source and destination.

* Update controller_test.go

* NET-5132 - Configure multiport routing for connect proxies in TProxy mode

* formatting golden files

* reverting golden files and adding changes in manually.  build implicit destinations still has some issues.

* fixing files that were incorrectly repeating the outbound listener

* PR comments

* extract AlpnProtocol naming convention to getAlpnProtocolFromPortName(portName)

* removing address level filtering.

* adding license to resources_test.go

---------

Co-authored-by: Iryna Shustava <iryna@hashicorp.com>
Co-authored-by: R.B. Boyer <rb@hashicorp.com>
Co-authored-by: github-team-consul-core <github-team-consul-core@hashicorp.com>
2023-09-12 01:17:56 +00:00
Semir Patel 576ffdf705
fix: emit consul version metric on a regular interval (#18724) 2023-09-08 13:09:07 -05:00
Gerard Nguyen 56d6e54ac7
fix: NET-1521 show latest config in /v1/agent/self (#18681)
* fix: NET-1521 show latest config in /v1/agent/self
2023-09-08 09:47:31 +10:00
Phil Porada 7ea986783d
Add TCP+TLS Healthchecks (#18381)
* Begin adding TCPUseTLS

* More TCP with TLS plumbing

* Making forward progress

* Keep on adding TCP+TLS support for healthchecks

* Removed too many lines

* Unit tests for TCP+TLS

* Update tlsutil/config.go

Co-authored-by: Samantha <hello@entropy.cat>

* Working on the tcp+tls unit test

* Updated the runtime integration tests

* Progress

* Revert this file back to HEAD

* Remove debugging lines

* Implement TLS enabled TCP socket server and make a successful TCP+TLS healthcheck on it

* Update docs

* Update agent/agent_test.go

Co-authored-by: Samantha <hello@entropy.cat>

* Update website/content/docs/ecs/configuration-reference.mdx

Co-authored-by: Samantha <hello@entropy.cat>

* Update website/content/docs/ecs/configuration-reference.mdx

Co-authored-by: Samantha <hello@entropy.cat>

* Update agent/checks/check.go

Co-authored-by: Samantha <hello@entropy.cat>

* Address comments

* Remove extraneous bracket

* Update agent/agent_test.go

Co-authored-by: Samantha <hello@entropy.cat>

* Update agent/agent_test.go

Co-authored-by: Samantha <hello@entropy.cat>

* Update website/content/docs/ecs/configuration-reference.mdx

Co-authored-by: Samantha <hello@entropy.cat>

* Update the mockTLSServer

* Remove trailing newline

* Address comments

* Fix merge problem

* Add changelog entry

---------

Co-authored-by: Samantha <hello@entropy.cat>
2023-09-05 13:34:44 -07:00
Derek Menteer b56fbc7a62
[NET-4958] Fix issue where envoy endpoints would fail to populate after snapshot restore (#18636)
Fix issue where agentless endpoints would fail to populate after snapshot restore.

Fixes an issue that was introduced in #17775. This issue happens because
a long-lived pointer to the state store is held, which is unsafe to do.
Snapshot restorations will swap out this state store, meaning that the
proxycfg watches would break for agentless.
2023-09-01 10:18:10 -05:00
Ashwin Venkatesh 797e42dc24
Watch the ProxyTracker from xDS controller (#18611) 2023-08-29 14:39:29 -07:00
John Murret 0e606504bc
NET-4944 - wire up controllers with proxy tracker (#18603)
Co-authored-by: github-team-consul-core <github-team-consul-core@hashicorp.com>
2023-08-29 09:15:34 -06:00
John Murret 051f250edb
NET-5338 - NET-5338 - Run a v2 mode xds server (#18579)
* NET-5338 - NET-5338 - Run a v2 mode xds server

* fix linting
2023-08-24 16:44:14 -06:00
Semir Patel 53e28a4963
OSS -> CE (community edition) changes (#18517) 2023-08-22 09:46:03 -05:00
hashicorp-copywrite[bot] 5fb9df1640
[COMPLIANCE] License changes (#18443)
* Adding explicit MPL license for sub-package

This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.

* Adding explicit MPL license for sub-package

This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.

* Updating the license from MPL to Business Source License

Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at <Blog URL>, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl.

* add missing license headers

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

* Update copyright file headers to BUSL-1.1

---------

Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
2023-08-11 09:12:13 -04:00
Poonam Jadhav 5208ea90e4
NET-4657/add resource service client (#18053)
### Description

<!-- Please describe why you're making this change, in plain English.
-->
Dan had already started on this
[task](https://github.com/hashicorp/consul/pull/17849) which is needed
to start building the HTTP APIs. This just needed some cleanup to get it
ready for review.

Overview:

- Rename `internalResourceServiceClient` to
`insecureResourceServiceClient` for name consistency
- Configure a `secureResourceServiceClient` with auth enabled

### PR Checklist

* [ ] ~updated test coverage~
* [ ] ~external facing docs updated~
* [x] appropriate backport labels added
* [ ] ~not a security concern~
2023-07-14 14:09:02 -04:00
Vijay 2f20c77e4d
Displays Consul version of each nodes in UI nodes section (#17754)
* update UINodes and UINodeInfo response with consul-version info added as NodeMeta, fetched from serf members

* update test cases TestUINodes, TestUINodeInfo

* added nil check for map

* add consul-version in local agent node metadata

* get consul version from serf member and add this as node meta in catalog register request

* updated ui mock response to include consul versions as node meta

* updated ui trans and added version as query param to node list route

* updates in ui templates to display consul version with filter and sorts

* updates in ui - model class, serializers,comparators,predicates for consul version feature

* added change log for Consul Version Feature

* updated to get version from consul service, if for some reason not available from serf

* updated changelog text

* updated dependent testcases

* multiselection version filter

* Update agent/consul/state/catalog.go

comments updated

Co-authored-by: Jared Kirschner <85913323+jkirschner-hashicorp@users.noreply.github.com>

---------

Co-authored-by: Jared Kirschner <85913323+jkirschner-hashicorp@users.noreply.github.com>
2023-07-12 13:34:39 -06:00
Ashesh Vidyut 2af6bc434a
feature - [NET - 4005] - [Supportability] Reloadable Configuration - enable_debug (#17565)
* # This is a combination of 9 commits.
# This is the 1st commit message:

init without tests

# This is the commit message #2:

change log

# This is the commit message #3:

fix tests

# This is the commit message #4:

fix tests

# This is the commit message #5:

added tests

# This is the commit message #6:

change log breaking change

# This is the commit message #7:

removed breaking change

# This is the commit message #8:

fix test

# This is the commit message #9:

keeping the test behaviour same

* # This is a combination of 12 commits.
# This is the 1st commit message:

init without tests

# This is the commit message #2:

change log

# This is the commit message #3:

fix tests

# This is the commit message #4:

fix tests

# This is the commit message #5:

added tests

# This is the commit message #6:

change log breaking change

# This is the commit message #7:

removed breaking change

# This is the commit message #8:

fix test

# This is the commit message #9:

keeping the test behaviour same

# This is the commit message #10:

made enable debug atomic bool

# This is the commit message #11:

fix lint

# This is the commit message #12:

fix test true enable debug

* parent 10f500e895d92cc3691ade7b74a33db755d22039
author absolutelightning <ashesh.vidyut@hashicorp.com> 1687352587 +0530
committer absolutelightning <ashesh.vidyut@hashicorp.com> 1687352592 +0530

init without tests

change log

fix tests

fix tests

added tests

change log breaking change

removed breaking change

fix test

keeping the test behaviour same

made enable debug atomic bool

fix lint

fix test true enable debug

using enable debug in agent as atomic bool

test fixes

fix tests

fix tests

added update on correct locaiton

fix tests

fix reloadable config enable debug

fix tests

fix init and acl 403

* revert commit
2023-06-30 08:30:29 +05:30
Derek Menteer 04edace1de
Fix issue with streaming service health watches. (#17775)
Fix issue with streaming service health watches.

This commit fixes an issue where the health streams were unaware of service
export changes. Whenever an exported-services config entry is modified, it is
effectively an ACL change.

The bug would be triggered by the following situation:

- no services are exported
- an upstream watch to service X is spawned
- the streaming backend filters out data for service X (due to lack of exports)
- service X is finally exported

In the situation above, the streaming backend does not trigger a refresh of its
data.  This means that any events that were supposed to have been received prior
to the export are NOT backfilled, and the watches never see service X spawning.

We currently have decided to not trigger a stream refresh in this situation due
to the potential for a thundering herd effect (touching exports would cause a
re-fetch of all watches for that partition, potentially).  Therefore, a local
blocking-query approach was added by this commit for agentless.

It's also worth noting that the streaming subscription is currently bypassed
most of the time with agentful, because proxycfg has a `req.Source.Node != ""`
which prevents the `streamingEnabled` check from passing.  This means that while
agents should technically have this same issue, they don't experience it with
mesh health watches.

Note that this is a temporary fix that solves the issue for proxycfg, but not
service-discovery use cases.
2023-06-15 12:46:58 -05:00
R.B. Boyer 72f991d8d3
agent: remove agent cache dependency from service mesh leaf certificate management (#17075)
* agent: remove agent cache dependency from service mesh leaf certificate management

This extracts the leaf cert management from within the agent cache.

This code was produced by the following process:

1. All tests in agent/cache, agent/cache-types, agent/auto-config,
   agent/consul/servercert were run at each stage.

    - The tests in agent matching .*Leaf were run at each stage.

    - The tests in agent/leafcert were run at each stage after they
      existed.

2. The former leaf cert Fetch implementation was extracted into a new
   package behind a "fake RPC" endpoint to make it look almost like all
   other cache type internals.

3. The old cache type was shimmed to use the fake RPC endpoint and
   generally cleaned up.

4. I selectively duplicated all of Get/Notify/NotifyCallback/Prepopulate
   from the agent/cache.Cache implementation over into the new package.
   This was renamed as leafcert.Manager.

    - Code that was irrelevant to the leaf cert type was deleted
      (inlining blocking=true, refresh=false)

5. Everything that used the leaf cert cache type (including proxycfg
   stuff) was shifted to use the leafcert.Manager instead.

6. agent/cache-types tests were moved and gently replumbed to execute
   as-is against a leafcert.Manager.

7. Inspired by some of the locking changes from derek's branch I split
   the fat lock into N+1 locks.

8. The waiter chan struct{} was eventually replaced with a
   singleflight.Group around cache updates, which was likely the biggest
   net structural change.

9. The awkward two layers or logic produced as a byproduct of marrying
   the agent cache management code with the leaf cert type code was
   slowly coalesced and flattened to remove confusion.

10. The .*Leaf tests from the agent package were copied and made to work
    directly against a leafcert.Manager to increase direct coverage.

I have done a best effort attempt to port the previous leaf-cert cache
type's tests over in spirit, as well as to take the e2e-ish tests in the
agent package with Leaf in the test name and copy those into the
agent/leafcert package to get more direct coverage, rather than coverage
tangled up in the agent logic.

There is no net-new test coverage, just coverage that was pushed around
from elsewhere.
2023-06-13 10:54:45 -05:00
Ronald 8118aae5c1
Add writeAuditRPCEvent to agent_oss (#17607)
* Add writeAuditRPCEvent to agent_oss

* fix the other diffs

* backport change log
2023-06-07 22:35:48 +00:00
cskh cf4059f3ce
chore: fix the error message format (#17554) 2023-06-02 13:37:44 +00:00
skpratt fdda7adeaa
issue a warning if major FIPS assumptions are broken (#17524) 2023-05-31 09:01:44 -05:00
Dan Bond 8dee353492
agent: don't write server metadata in dev mode (#17383)
Signed-off-by: Dan Bond <danbond@protonmail.com>
2023-05-16 02:50:27 -07:00
Dan Bond 95f462d5f1
agent: prevent very old servers re-joining a cluster with stale data (#17171)
* agent: configure server lastseen timestamp

Signed-off-by: Dan Bond <danbond@protonmail.com>

* use correct config

Signed-off-by: Dan Bond <danbond@protonmail.com>

* add comments

Signed-off-by: Dan Bond <danbond@protonmail.com>

* use default age in test golden data

Signed-off-by: Dan Bond <danbond@protonmail.com>

* add changelog

Signed-off-by: Dan Bond <danbond@protonmail.com>

* fix runtime test

Signed-off-by: Dan Bond <danbond@protonmail.com>

* agent: add server_metadata

Signed-off-by: Dan Bond <danbond@protonmail.com>

* update comments

Signed-off-by: Dan Bond <danbond@protonmail.com>

* correctly check if metadata file does not exist

Signed-off-by: Dan Bond <danbond@protonmail.com>

* follow instructions for adding new config

Signed-off-by: Dan Bond <danbond@protonmail.com>

* add comments

Signed-off-by: Dan Bond <danbond@protonmail.com>

* update comments

Signed-off-by: Dan Bond <danbond@protonmail.com>

* Update agent/agent.go

Co-authored-by: Dan Upton <daniel@floppy.co>

* agent/config: add validation for duration with min

Signed-off-by: Dan Bond <danbond@protonmail.com>

* docs: add new server_rejoin_age_max config definition

Signed-off-by: Dan Bond <danbond@protonmail.com>

* agent: add unit test for checking server last seen

Signed-off-by: Dan Bond <danbond@protonmail.com>

* agent: log continually for 60s before erroring

Signed-off-by: Dan Bond <danbond@protonmail.com>

* pr comments

Signed-off-by: Dan Bond <danbond@protonmail.com>

* remove unneeded todo

* agent: fix error message

Signed-off-by: Dan Bond <danbond@protonmail.com>

---------

Signed-off-by: Dan Bond <danbond@protonmail.com>
Co-authored-by: Dan Upton <daniel@floppy.co>
2023-05-15 04:05:47 -07:00
Freddy e02ef16f02
Update HCP bootstrapping to support existing clusters (#16916)
* Persist HCP management token from server config

We want to move away from injecting an initial management token into
Consul clusters linked to HCP. The reasoning is that by using a separate
class of token we can have more flexibility in terms of allowing HCP's
token to co-exist with the user's management token.

Down the line we can also more easily adjust the permissions attached to
HCP's token to limit it's scope.

With these changes, the cloud management token is like the initial
management token in that iit has the same global management policy and
if it is created it effectively bootstraps the ACL system.

* Update SDK and mock HCP server

The HCP management token will now be sent in a special field rather than
as Consul's "initial management" token configuration.

This commit also updates the mock HCP server to more accurately reflect
the behavior of the CCM backend.

* Refactor HCP bootstrapping logic and add tests

We want to allow users to link Consul clusters that already exist to
HCP. Existing clusters need care when bootstrapped by HCP, since we do
not want to do things like change ACL/TLS settings for a running
cluster.

Additional changes:

* Deconstruct MaybeBootstrap so that it can be tested. The HCP Go SDK
  requires HTTPS to fetch a token from the Auth URL, even if the backend
  server is mocked. By pulling the hcp.Client creation out we can modify
  its TLS configuration in tests while keeping the secure behavior in
  production code.

* Add light validation for data received/loaded.

* Sanitize initial_management token from received config, since HCP will
  only ever use the CloudConfig.MangementToken.

* Add changelog entry
2023-04-27 22:27:39 +02:00
Michael Wilkerson 0dd4ea2033
* added Sameness Group to proto files (#16998)
- added Sameness Group to config entries
- added Sameness Group to subscriptions

* generated proto files

* added Sameness Group events to the state store
- added test cases

* Refactored health RPC Client
- moved code that is common to rpcclient under rpcclient common.go. This will help set us up to support future RPC clients

* Refactored proxycfg glue views
- Moved views to rpcclient config entry. This will allow us to reuse this code for a config entry client

* added config entry RPC Client
- Copied most of the testing code from rpcclient/health

* hooked up new rpcclient in agent

* fixed documentation and comments for clarity
2023-04-14 09:24:46 -07:00
Poonam Jadhav 8255cc97f5
feat: add reporting config with reload (#16890) 2023-04-11 15:04:02 -04:00
Ronald 94ec4eb2f4
copyright headers for agent folder (#16704)
* copyright headers for agent folder

* Ignore test data files

* fix proto files and remove headers in agent/uiserver folder

* ignore deep-copy files
2023-03-28 14:39:22 -04:00
Eric Haberkorn 57e2493415
allow setting locality on services and nodes (#16581) 2023-03-10 09:36:15 -05:00
Eric Haberkorn dbaf8bf49c
add agent locality and replicate it across peer streams (#16522) 2023-03-07 14:05:23 -05:00
R.B. Boyer 9a485cdb49
proxycfg: ensure that an irrecoverable error in proxycfg closes the xds session and triggers a replacement proxycfg watcher (#16497)
Receiving an "acl not found" error from an RPC in the agent cache and the
streaming/event components will cause any request loops to cease under the
assumption that they will never work again if the token was destroyed. This
prevents log spam (#14144, #9738).

Unfortunately due to things like:

- authz requests going to stale servers that may not have witnessed the token
  creation yet

- authz requests in a secondary datacenter happening before the tokens get
  replicated to that datacenter

- authz requests from a primary TO a secondary datacenter happening before the
  tokens get replicated to that datacenter

The caller will get an "acl not found" *before* the token exists, rather than
just after. The machinery added above in the linked PRs will kick in and
prevent the request loop from looping around again once the tokens actually
exist.

For `consul-dataplane` usages, where xDS is served by the Consul servers
rather than the clients ultimately this is not a problem because in that
scenario the `agent/proxycfg` machinery is on-demand and launched by a new xDS
stream needing data for a specific service in the catalog. If the watching
goroutines are terminated it ripples down and terminates the xDS stream, which
CDP will eventually re-establish and restart everything.

For Consul client usages, the `agent/proxycfg` machinery is ahead-of-time
launched at service registration time (called "local" in some of the proxycfg
machinery) so when the xDS stream comes in the data is already ready to go. If
the watching goroutines terminate it should terminate the xDS stream, but
there's no mechanism to re-spawn the watching goroutines. If the xDS stream
reconnects it will see no `ConfigSnapshot` and will not get one again until
the client agent is restarted, or the service is re-registered with something
changed in it.

This PR fixes a few things in the machinery:

- there was an inadvertent deadlock in fetching snapshot from the proxycfg
  machinery by xDS, such that when the watching goroutine terminated the
  snapshots would never be fetched. This caused some of the xDS machinery to
  get indefinitely paused and not finish the teardown properly.

- Every 30s we now attempt to re-insert all locally registered services into
  the proxycfg machinery.

- When services are re-inserted into the proxycfg machinery we special case
  "dead" ones such that we unilaterally replace them rather that doing that
  conditionally.
2023-03-03 14:27:53 -06:00
Dan Upton 73b9b407ba
grpc: fix data race in balancer registration (#16229)
Registering gRPC balancers is thread-unsafe because they are stored in a
global map variable that is accessed without holding a lock. Therefore,
it's expected that balancers are registered _once_ at the beginning of
your program (e.g. in a package `init` function) and certainly not after
you've started dialing connections, etc.

> NOTE: this function must only be called during initialization time
> (i.e. in an init() function), and is not thread-safe.

While this is fine for us in production, it's challenging for tests that
spin up multiple agents in-memory. We currently register a balancer per-
agent which holds agent-specific state that cannot safely be shared.

This commit introduces our own registry that _is_ thread-safe, and
implements the Builder interface such that we can call gRPC's `Register`
method once, on start-up. It uses the same pattern as our resolver
registry where we use the dial target's host (aka "authority"), which is
unique per-agent, to determine which builder to use.
2023-02-28 10:18:38 +00:00
cskh 8e5942f5ca
fix: add tls config to unix socket when https is used (#16301)
* fix: add tls config to unix socket when https is used

* unit test and changelog
2023-02-21 08:28:13 -05:00
Matt Keeler 085c0addc0
Protobuf Refactoring for Multi-Module Cleanliness (#16302)
Protobuf Refactoring for Multi-Module Cleanliness

This commit includes the following:

Moves all packages that were within proto/ to proto/private
Rewrites imports to account for the packages being moved
Adds in buf.work.yaml to enable buf workspaces
Names the proto-public buf module so that we can override the Go package imports within proto/buf.yaml
Bumps the buf version dependency to 1.14.0 (I was trying out the version to see if it would get around an issue - it didn't but it also doesn't break things and it seemed best to keep up with the toolchain changes)

Why:

In the future we will need to consume other protobuf dependencies such as the Google HTTP annotations for openapi generation or grpc-gateway usage.
There were some recent changes to have our own ratelimiting annotations.
The two combined were not working when I was trying to use them together (attempting to rebase another branch)
Buf workspaces should be the solution to the problem
Buf workspaces means that each module will have generated Go code that embeds proto file names relative to the proto dir and not the top level repo root.
This resulted in proto file name conflicts in the Go global protobuf type registry.
The solution to that was to add in a private/ directory into the path within the proto/ directory.
That then required rewriting all the imports.

Is this safe?

AFAICT yes
The gRPC wire protocol doesn't seem to care about the proto file names (although the Go grpc code does tack on the proto file name as Metadata in the ServiceDesc)
Other than imports, there were no changes to any generated code as a result of this.
2023-02-17 16:14:46 -05:00
Paul Banks 5397e9ee7f
Adding experimental support for a more efficient LogStore implementation (#16176)
* Adding experimental support for a more efficient LogStore implementation

* Adding changelog entry

* Fix go mod tidy issues
2023-02-08 16:50:22 +00:00
cskh 25396d81c9
Apply agent partition to load services and agent api (#16024)
* Apply agent partition to load services and agent api

changelog
2023-01-20 12:59:26 -05:00
Dan Upton 7a55de375c
xds: don't attempt to load-balance sessions for local proxies (#15789)
Previously, we'd begin a session with the xDS concurrency limiter
regardless of whether the proxy was registered in the catalog or in
the server's local agent state.

This caused problems for users who run `consul connect envoy` directly
against a server rather than a client agent, as the server's locally
registered proxies wouldn't be included in the limiter's capacity.

Now, the `ConfigSource` is responsible for beginning the session and we
only do so for services in the catalog.

Fixes: https://github.com/hashicorp/consul/issues/15753
2023-01-18 12:33:21 -06:00
Paul Glass f5231b9157
Add new config_file_service_registration token (#15828) 2023-01-10 10:24:02 -06:00
Chris S. Kim a7b34d50fc
Output user-friendly name for anonymous token (#15884) 2023-01-09 12:28:53 -06:00
Dhia Ayachi 233eacf0a4
inject logger and create logdrop sink (#15822)
* inject logger and create logdrop sink

* init sink with an empty struct instead of nil

* wrap a logger instead of a sink and add a discard logger to avoid double logging

* fix compile errors

* fix linter errors

* Fix bug where log arguments aren't properly formatted

* Move log sink construction outside of handler

* Add prometheus definition and docs for log drop counter

Co-authored-by: Daniel Upton <daniel@floppy.co>
2023-01-06 11:33:53 -07:00
Dan Upton 7747384f1f
Wire in rate limiter to handle internal and external gRPC calls (#15857) 2022-12-23 13:42:16 -06:00
John Murret f5e01f8c6b
Rate Limit Handler - ensure rate limiting is not in the code path when not configured (#15819)
* Rate limiting handler - ensure configuration has changed before modifying limiters

* Updating test to validate arguments to UpdateConfig

* Removing duplicate test.  Updating mock.

* Renaming NullRateLimiter to NullRequestLimitsHandler

* Rate Limit Handler - ensure rate limiting is not in the code path when not configured

* Update agent/consul/rate/handler.go

Co-authored-by: Dhia Ayachi <dhia@hashicorp.com>

* formatting handler.go

* Rate limiting handler - ensure configuration has changed before modifying limiters

* Updating test to validate arguments to UpdateConfig

* Removing duplicate test.  Updating mock.

* adding logging for when UpdateConfig is called but the config has not changed.

* Update agent/consul/rate/handler.go

Co-authored-by: Dhia Ayachi <dhia@hashicorp.com>

* Update agent/consul/rate/handler_test.go

Co-authored-by: Dan Upton <daniel@floppy.co>

* modifying existing variable name based on pr feedback

* updating a broken merge conflict;

Co-authored-by: Dhia Ayachi <dhia@hashicorp.com>
Co-authored-by: Dan Upton <daniel@floppy.co>
2022-12-20 15:00:22 -07:00
Semir Patel bafa5c7156
Pass remote addr of incoming HTTP requests through to RPC(..) calls (#15700) 2022-12-14 09:24:22 -06:00
John Murret e027c94b52
adding config for request_limits (#15531)
* server: add placeholder glue for rate limit handler

This commit adds a no-op implementation of the rate-limit handler and
adds it to the `consul.Server` struct and setup code.

This allows us to start working on the net/rpc and gRPC interceptors and
config logic.

* Add handler errors

* Set the global read and write limits

* fixing multilimiter moving packages

* Fix typo

* Simplify globalLimit usage

* add multilimiter and tests

* exporting LimitedEntity

* Apply suggestions from code review

Co-authored-by: John Murret <john.murret@hashicorp.com>

* add config update and rename config params

* add doc string and split config

* Apply suggestions from code review

Co-authored-by: Dan Upton <daniel@floppy.co>

* use timer to avoid go routine leak and change the interface

* add comments to tests

* fix failing test

* add prefix with config edge, refactor tests

* Apply suggestions from code review

Co-authored-by: Dan Upton <daniel@floppy.co>

* refactor to apply configs for limiters under a prefix

* add fuzz tests and fix bugs found. Refactor reconcile loop to have a simpler logic

* make KeyType an exported type

* split the config and limiter trees to fix race conditions in config update

* rename variables

* fix race in test and remove dead code

* fix reconcile loop to not create a timer on each loop

* add extra benchmark tests and fix tests

* fix benchmark test to pass value to func

* server: add placeholder glue for rate limit handler

This commit adds a no-op implementation of the rate-limit handler and
adds it to the `consul.Server` struct and setup code.

This allows us to start working on the net/rpc and gRPC interceptors and
config logic.

* Set the global read and write limits

* fixing multilimiter moving packages

* add server configuration for global rate limiting.

* remove agent test

* remove added stuff from handler

* remove added stuff from multilimiter

* removing unnecessary TODOs

* Removing TODO comment from handler

* adding in defaulting to infinite

* add disabled status in there

* adding in documentation for disabled mode.

* make disabled the default.

* Add mock and agent test

* addig documentation and missing mock file.

* Fixing test TestLoad_IntegrationWithFlags

* updating docs based on PR feedback.

* Updating Request Limits mode to use int based on PR feedback.

* Adding RequestLimits struct so we have a nested struct in ReloadableConfig.

* fixing linting references

* Update agent/consul/rate/handler.go

Co-authored-by: Dan Upton <daniel@floppy.co>

* Update agent/consul/config.go

Co-authored-by: Dan Upton <daniel@floppy.co>

* removing the ignore of the request limits in JSON.  addingbuilder logic to convert any read rate or write rate less than 0 to rate.Inf

* added conversion function to convert request limits object to handler config.

* Updating docs to reflect gRPC and RPC are rate limit and as a result, HTTP requests are as well.

* Updating values for TestLoad_FullConfig() so that they were different and discernable.

* Updating TestRuntimeConfig_Sanitize

* Fixing TestLoad_IntegrationWithFlags test

* putting nil check in place

* fixing rebase

* removing change for missing error checks.  will put in another PR

* Rebasing after default multilimiter config change

* resolving rebase issues

* updating reference for incomingRPCLimiter to use interface

* updating interface

* Updating interfaces

* Fixing mock reference

Co-authored-by: Daniel Upton <daniel@floppy.co>
Co-authored-by: Dhia Ayachi <dhia@hashicorp.com>
2022-12-13 13:09:55 -07:00
Dan Upton c692802dec
grpc: add rate-limiting middleware (#15550)
Implements the gRPC middleware for rate-limiting as a tap.ServerInHandle
function (executed before the request is unmarshaled).

Mappings between gRPC methods and their operation type are generated by
a protoc plugin introduced by #15564.
2022-12-13 15:01:56 +00:00
John Murret cd53120cd7
agent: Fix assignment of error when auto-reloading cert and key file changes. (#15769)
* Adding the setting of errors missing in config file watcher code in agent.

* add changelog
2022-12-12 12:24:39 -07:00
Eric Haberkorn 4268c1c25c
Remove the `connect.enable_serverless_plugin` agent configuration option (#15710) 2022-12-08 14:46:42 -05:00