Commit Graph

36 Commits

Author SHA1 Message Date
Grégoire Seux 6a57c7fec5 Implement /v1/agent/health/service/<service name> endpoint (#3551)
This endpoint aggregates all checks related to <service id> on the agent
and return an appropriate http code + the string describing the worst
check.

This allows to cleanly expose service status to other component, hiding
complexity of multiple checks.
This is especially useful to use consul to feed a load balancer which
would delegate health checking to consul agent.

Exposing this endpoint on the agent is necessary to avoid a hit on
consul servers and avoid decreasing resiliency (this endpoint will work
even if there is no consul leader in the cluster).
2019-01-07 09:39:23 -05:00
Hans Hasselberg 1a520d65b4
Builtin tls helper (#5078)
* command: add tls subcommand
* website: update docs and guide
2018-12-19 09:22:49 +01:00
Dhi Aurrahman 342e2696dc connect: Fix comment DYNAMIC_DNS to LOGICAL_DNS (#4799)
LOGICAL_DNS is one of the supported service discovery types [1].

[1] https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/service_discovery#arch-overview-service-discovery-types
2018-10-24 07:02:01 -07:00
Paul Banks 0523efa2fe merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in 2018-10-10 16:55:34 +01:00
Paul Banks bcf2cc2de3 cli: envoy command default gRPC port (#4768)
* Default gRPC port; Start on some basic tests for argument and ENV handling; Make Exec test less platform-dependent.

* Allow hot-restarts

* Remove debug
2018-10-10 16:55:34 +01:00
R.B. Boyer 4427417140 cli: avoid passing envoy bootstrap configuration as arguments (#4747)
Play a trick with CLOEXEC to pass the envoy bootstrap configuration as
an open file descriptor to the exec'd envoy process. The file only
briefly touches disk before being unlinked.

We convince envoy to read from this open file descriptor by using the
/dev/fd/$FDNUMBER mechanism to read the open file descriptor as a file.

Because the filename no longer has an extension envoy's sniffing logic
falls back on JSON instead of YAML, so the bootstrap configuration must
be generated as JSON instead.
2018-10-10 16:55:34 +01:00
Paul Banks 1e4c5a1811 Connect Envoy Command (#4735)
* Plumb xDS server and proxyxfg into the agent startup

* Add `consul connect envoy` command to allow running Envoy as a connect sidecar.

* Add test for help tabs; typos and style fixups from review
2018-10-10 16:55:34 +01:00
Paul Banks 979e1c9c94 Add -sidecar-for and new /agent/service/:service_id endpoint (#4691)
- A new endpoint `/v1/agent/service/:service_id` which is a generic way to look up the service for a single instance. The primary value here is that it:
   - **supports hash-based blocking** and so;
   - **replaces `/agent/connect/proxy/:proxy_id`** as the mechanism the built-in proxy uses to read its config.
   - It's not proxy specific and so works for any service.
   - It has a temporary shim to call through to the existing endpoint to preserve current managed proxy config defaulting behaviour until that is removed entirely (tested).
 - The built-in proxy now uses the new endpoint exclusively for it's config
 - The built-in proxy now has a `-sidecar-for` flag that allows the service ID of the _target_ service to be specified, on the condition that there is exactly one "sidecar" proxy (that is one that has `Proxy.DestinationServiceID` set) for the service registered.
 - Several fixes for edge cases for SidecarService
 - A fix for `Alias` checks - when running locally they didn't update their state until some external thing updated the target. If the target service has no checks registered as below, then the alias never made it past critical.
2018-10-10 16:55:34 +01:00
Paul Banks 92fe8c8e89 Add Proxy Upstreams to Service Definition (#4639)
* Refactor Service Definition ProxyDestination.

This includes:
 - Refactoring all internal structs used
 - Updated tests for both deprecated and new input for:
   - Agent Services endpoint response
   - Agent Service endpoint response
   - Agent Register endpoint
     - Unmanaged deprecated field
     - Unmanaged new fields
     - Managed deprecated upstreams
     - Managed new
   - Catalog Register
     - Unmanaged deprecated field
     - Unmanaged new fields
     - Managed deprecated upstreams
     - Managed new
   - Catalog Services endpoint response
   - Catalog Node endpoint response
   - Catalog Service endpoint response
 - Updated API tests for all of the above too (both deprecated and new forms of register)

TODO:
 - config package changes for on-disk service definitions
 - proxy config endpoint
 - built-in proxy support for new fields

* Agent proxy config endpoint updated with upstreams

* Config file changes for upstreams.

* Add upstream opaque config and update all tests to ensure it works everywhere.

* Built in proxy working with new Upstreams config

* Command fixes and deprecations

* Fix key translation, upstream type defaults and a spate of other subtele bugs found with ned to end test scripts...

TODO: tests still failing on one case that needs a fix. I think it's key translation for upstreams nested in Managed proxy struct.

* Fix translated keys in API registration.
≈

* Fixes from docs
 - omit some empty undocumented fields in API
 - Bring back ServiceProxyDestination in Catalog responses to not break backwards compat - this was removed assuming it was only used internally.

* Documentation updates for Upstreams in service definition

* Fixes for tests broken by many refactors.

* Enable travis on f-connect branch in this branch too.

* Add consistent Deprecation comments to ProxyDestination uses

* Update version number on deprecation notices, and correct upstream datacenter field with explanation in docs
2018-10-10 16:55:34 +01:00
Paul Banks bed72f6078 Rename proxy package (re-run of #4550) (#4638)
* Rename agent/proxy package to reflect that it is limited to managed proxy processes

Rationale: we have several other components of the agent that relate to Connect proxies for example the ProxyConfigManager component needed for Envoy work. Those things are pretty separate from the focus of this package so far which is only concerned with managing external proxy processes so it's nota good fit to put code for that in here, yet there is a naming clash if we have other packages related to proxy functionality that are not in the `agent/proxy` package.

Happy to bikeshed the name. I started by calling it `managedproxy` but `managedproxy.Manager` is especially unpleasant. `proxyprocess` seems good in that it's more specific about purpose but less clearly connected with the concept of "managed proxies". The names in use are cleaner though e.g. `proxyprocess.Manager`.

This rename was completed automatically using golang.org/x/tools/cmd/gomvpkg.

Depends on #4541

* Fix missed windows tagged files
2018-10-10 16:55:34 +01:00
Pierre Souchay 5ecf9823d2 Fix more unstable tests in agent and command 2018-09-12 14:49:27 +01:00
Pierre Souchay e974ebd62e Fixed flaky tests (#4626) 2018-09-04 12:31:51 +01:00
Pierre Souchay 5f603d86ad Fix unstable test TestRegisterMonitor_heartbeat (#4568) 2018-08-24 13:33:58 -04:00
Pierre Souchay fd927ea110 BUGFIX: Unit test relying on WaitForLeader() did not work due to wrong test (#4472)
- Improve resilience of testrpc.WaitForLeader()

- Add additionall retry to CI

- Increase "go test" timeout to 8m

- Add wait for cluster leader to several tests in the agent package

- Add retry to some tests in the api and command packages
2018-08-06 19:46:09 -04:00
Mitchell Hashimoto 9091f2b108
command/connect/proxy: ignore check doesn't exist on -register 2018-06-29 10:58:06 -07:00
Paul Banks d140612350 Fixs a few issues that stopped this working in real life but not caught by tests:
- Dev mode assumed no persistence of services although proxy state is persisted which caused proxies to be killed on startup as their services were no longer registered. Fixed.
 - Didn't snapshot the ProxyID which meant that proxies were adopted OK from snapshot but failed to restart if they died since there was no proxyID in the ENV on restart
 - Dev mode with no persistence just kills all proxies on shutdown since it can't recover them later
 - Naming things
2018-06-25 12:24:14 -07:00
Mitchell Hashimoto 692f1ef357 command/connect/proxy: can specify prepared query upstream types 2018-06-25 12:24:13 -07:00
Paul Banks 3bac52480e Abandon daemonize for simpler solution (preserving history):
Reverts:
  - bdb274852ae469c89092d6050697c0ff97178465
  - 2c689179c4f61c11f0016214c0fc127a0b813bfe
  - d62e25c4a7ab753914b6baccd66f88ffd10949a3
  - c727ffbcc98e3e0bf41e1a7bdd40169bd2d22191
  - 31b4d18933fd0acbe157e28d03ad59c2abf9a1fb
  - 85c3f8df3eabc00f490cd392213c3b928a85aa44
2018-06-25 12:24:10 -07:00
Paul Banks e1aca748c4 Make daemoinze an option on test binary without hacks. Misc fixes for racey or broken tests. Still failing on several though. 2018-06-25 12:24:09 -07:00
Paul Banks c97db00903 Run daemon processes as a detached child.
This turns out to have a lot more subtelty than we accounted for. The test suite is especially prone to races now we can only poll the child and many extra levels of indirectoin are needed to correctly run daemon process without it becoming a Zombie.

I ran this test suite in a loop with parallel enabled to verify for races (-race doesn't find any as they are logical inter-process ones not actual data races). I made it through ~50 runs before hitting an error due to timing which is much better than before. I want to go back and see if we can do better though. Just getting this up.
2018-06-25 12:24:08 -07:00
Kyle Havlovitz 33d1d01374
Clarify CA commands' help text 2018-06-14 09:42:23 -07:00
Kyle Havlovitz 96f4ff961c
Add CA CLI commands for getting/setting config 2018-06-14 09:42:22 -07:00
Mitchell Hashimoto 118aa0f00a
command/connect/proxy: register monitor tests 2018-06-14 09:42:22 -07:00
Mitchell Hashimoto 771842255a
address comment feedback 2018-06-14 09:42:22 -07:00
Mitchell Hashimoto 021782c36b
command/connect/proxy: register monitor and -register flag 2018-06-14 09:42:22 -07:00
Mitchell Hashimoto 351a9585e4
command/connect/proxy: output information when starting similar to agent 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto 82ba167757
command/connect/proxy: detailed help 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto 01c3564158
command/connect/proxy: -service-addr required for -listen 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto a750254b28
command/connect/proxy: can set public listener from flags 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto b531919181
command/connect/proxy: tests for configuration 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto 3e8ea58585
command/connect/proxy: accept -service and -upstream 2018-06-14 09:42:21 -07:00
Mitchell Hashimoto b28e2b8622
connect/proxy: don't require proxy ID 2018-06-14 09:42:20 -07:00
Mitchell Hashimoto 4100c9567f
command/connect/proxy: set ACL token based on proxy token flag 2018-06-14 09:42:14 -07:00
Mitchell Hashimoto 9435d8088c
command/connect/proxy: set proxy ID from env var if set 2018-06-14 09:42:14 -07:00
Paul Banks 51b1bc028d
Rework connect/proxy and command/connect/proxy. End to end demo working again 2018-06-14 09:41:57 -07:00
Paul Banks 800deb693c
Original proxy and connect.Client implementation. Working end to end. 2018-06-14 09:41:56 -07:00