Commit Graph

201 Commits

Author SHA1 Message Date
R.B. Boyer 38d4b75ab3
xds: fix flaky protocol tests (#10410) 2021-06-16 11:57:43 -05:00
Freddy 3127dac0fb
Merge pull request #10404 from hashicorp/ingress-stats 2021-06-15 14:28:07 -06:00
R.B. Boyer 1645b6aafe
xds: adding more delta protocol tests (#10398)
Fixes #10125
2021-06-15 15:21:07 -05:00
freddygv bdb3af918c Regen golden files 2021-06-15 14:18:25 -06:00
Freddy 0d05cbb105
Update agent/xds/listeners.go
Co-authored-by: R.B. Boyer <4903+rboyer@users.noreply.github.com>
2021-06-15 14:09:26 -06:00
freddygv e07542211a Remove unused param 2021-06-15 11:19:45 -06:00
freddygv 450ac44126 Update ingress gateway stats labeling
In the absence of stats_tags to handle this pattern, when we pass
"ingress_upstream.$port" as the stat_prefix, Envoy splits up that prefix
and makes the port a part of the metric name.

For example:
- stat_prefix: ingress_upstream.8080

This leads to metric names like envoy_http_8080_no_route. Changing the
stat_prefix to ingress_upstream_80880 yields the expected metric names
such as envoy_http_no_route.

Note that we don't encode the destination's name/ns/dc in this
stat_prefix because for HTTP services ingress gateways use a single
filter chain. Only cluster metrics are available on a per-upstream
basis.
2021-06-15 08:52:18 -06:00
freddygv 5d7188e290 Update terminating gateway stats labeling
This change makes it so that the stat prefix for terminating gateways
matches that of connect proxies. By using the structure of
"upstream.svc.ns.dc" we can extract labels for the destination service,
namespace, and datacenter.
2021-06-15 08:52:18 -06:00
R.B. Boyer 8d5f81b460
xds: ensure that dependent xDS resources are reconfigured during primary type warming (#10381)
Updates to a cluster will clear the associated endpoints, and updates to
a listener will clear the associated routes. Update the incremental xDS
logic to account for this implicit cleanup so that we can finish warming
the clusters and listeners.

Fixes #10379
2021-06-14 17:20:27 -05:00
Freddy f399fd2add
Rename CatalogDestinationsOnly (#10397)
CatalogDestinationsOnly is a passthrough that would enable dialing
addresses outside of Consul's catalog. However, when this flag is set to
true only _connect_ endpoints for services can be dialed.

This flag is being renamed to signal that non-Connect endpoints can't be
dialed by transparent proxies when the value is set to true.
2021-06-14 14:15:09 -06:00
Freddy 61ae2995b7
Add flag for transparent proxies to dial individual instances (#10329) 2021-06-09 14:34:17 -06:00
Freddy 62facc1a04
Revert "Avoid adding original_dst filter when not needed" (#10365) 2021-06-08 13:18:41 -06:00
Freddy c61e2bbda7
Ensure passthrough clusters can be created (#10301) 2021-05-26 15:05:14 -06:00
Freddy 7cfd7e9ec1
Avoid adding original_dst filter when not needed (#10302) 2021-05-26 15:04:45 -06:00
R.B. Boyer 7c9763d027
xds: emit a labeled gauge of connected xDS streams by version (#10243)
Fixes #10099
2021-05-14 13:59:13 -05:00
R.B. Boyer 05b52a3d63
connect: update supported envoy versions to 1.18.3, 1.17.3, 1.16.4, and 1.15.5 (#10231) 2021-05-12 14:06:06 -05:00
Daniel Nephin 55f620d636
Merge pull request #10155 from hashicorp/dnephin/config-entry-remove-fields
config-entry: remove Kind and Name field from Mesh config entry
2021-05-04 17:27:56 -04:00
Mark Anderson b9fc9ddc01 Add simple test for downstream sockets
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 10963d0cbd Add support for downstreams
Enhance config by adding SocketPath and LocalSocketPath config values

Supports syntax of the form:
```
services {
  name = "sock_forwarder"
  id = "sock_forwarder.1"
  socket_path = "/tmp/downstream_3.sock"
  connect {
    sidecar_service {
      proxy {
	local_service_socket_path = "/tmp/downstream.sock"
      }
    }
  }
}
```

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson c3510e6d47 Add tests for xds/listeners
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 5f04b6abe2 Convert mode to string representation
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 626b27a874 Continue working through proxy and agent
Rework/listeners, rename makeListener

Refactor, tests pass

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Freddy ec38cf3206
Fixup discovery chain handling in transparent mode (#10168)
Co-authored-by: R.B. Boyer <4903+rboyer@users.noreply.github.com>

Previously we would associate the address of a discovery chain target
with the discovery chain's filter chain. This was broken for a few reasons:

- If the upstream is a virtual service, the client proxy has no way of
dialing it because virtual services are not targets of their discovery
chains. The targets are distinct services. This is addressed by watching
the endpoints of all upstream services, not just their discovery chain
targets.

- If multiple discovery chains resolve to the same target, that would
lead to multiple filter chains attempting to match on the target's
virtual IP. This is addressed by only matching on the upstream's virtual
IP.

NOTE: this implementation requires an intention to the redirecting
virtual service and not just to the final destination. This is how
we can know that the virtual service is an upstream to watch.

A later PR will look into traversing discovery chains when computing
upstreams so that intentions are only required to the discovery chain
targets.
2021-05-04 08:45:19 -06:00
Freddy 5427a1465c
Only consider virtual IPs for transparent proxies (#10162)
Initially we were loading every potential upstream address into Envoy
and then routing traffic to the logical upstream service. The downside
of this behavior is that traffic meant to go to a specific instance
would be load balanced across ALL instances.

Traffic to specific instance IPs should be forwarded to the original
destination and if it's a destination in the mesh then we should ensure
the appropriate certificates are used.

This PR makes transparent proxying a Kubernetes-only feature for now
since support for other environments requires generating virtual IPs,
and Consul does not do that at the moment.
2021-05-03 14:15:22 -06:00
Daniel Nephin bf4c289804 config-entry: remove Kind and Name field from Mesh config entry
No config entry needs a Kind field. It is only used to determine the Go type to
target. As we introduce new config entries (like this one) we can remove the kind field
and have the GetKind method return the single supported value.

In this case (similar to proxy-defaults) the Name field is also unnecessary. We always
use the same value. So we can omit the name field entirely.
2021-04-29 17:11:21 -04:00
R.B. Boyer 97e57aedfb
connect: update supported envoy versions to 1.18.2, 1.17.2, 1.16.3, and 1.15.4 (#10101)
The only thing that needed fixing up pertained to this section of the 1.18.x release notes:

> grpc_stats: the default value for stats_for_all_methods is switched from true to false, in order to avoid possible memory exhaustion due to an untrusted downstream sending a large number of unique method names. The previous default value was deprecated in version 1.14.0. This only changes the behavior when the value is not set. The previous behavior can be used by setting the value to true. This behavior change by be overridden by setting runtime feature envoy.deprecated_features.grpc_stats_filter_enable_stats_for_all_methods_by_default.

For now to maintain status-quo I'm explicitly setting `stats_for_all_methods=true` in all versions to avoid relying upon the default.

Additionally the naming of the emitted metrics for these gRPC requests changed slightly so the integration test assertions for `case-grpc` needed adjusting.
2021-04-29 15:22:03 -05:00
R.B. Boyer 06cd0aaa8d
xds: ensure that all envoyproxy/go-control-plane protobuf symbols are linked into the final binary (#10131)
This ensures that if someone does include some extension Consul does not currently make use of, that extension is actually usable. Without linking these envoy protobufs into the main binary it can't round trip the escape hatches to send them down to envoy.

Whenenver the go-control-plane library is upgraded next we just have to re-run 'make envoy-library'.
2021-04-29 14:58:26 -05:00
R.B. Boyer 91bee6246f
Support Incremental xDS mode (#9855)
This adds support for the Incremental xDS protocol when using xDS v3. This is best reviewed commit-by-commit and will not be squashed when merged.

Union of all commit messages follows to give an overarching summary:

xds: exclusively support incremental xDS when using xDS v3

Attempts to use SoTW via v3 will fail, much like attempts to use incremental via v2 will fail.
Work around a strange older envoy behavior involving empty CDS responses over incremental xDS.
xds: various cleanups and refactors that don't strictly concern the addition of incremental xDS support

Dissolve the connectionInfo struct in favor of per-connection ResourceGenerators instead.
Do a better job of ensuring the xds code uses a well configured logger that accurately describes the connected client.
xds: pull out checkStreamACLs method in advance of a later commit

xds: rewrite SoTW xDS protocol tests to use protobufs rather than hand-rolled json strings

In the test we very lightly reuse some of the more boring protobuf construction helper code that is also technically under test. The important thing of the protocol tests is testing the protocol. The actual inputs and outputs are largely already handled by the xds golden output tests now so these protocol tests don't have to do double-duty.

This also updates the SoTW protocol test to exclusively use xDS v2 which is the only variant of SoTW that will be supported in Consul 1.10.

xds: default xds.Server.AuthCheckFrequency at use-time instead of construction-time
2021-04-29 13:54:05 -05:00
Freddy 401f3010e0
Rename "cluster" config entry to "mesh" (#10127)
This config entry is being renamed primarily because in k8s the name
cluster could be confusing given that the config entry applies across
federated datacenters.

Additionally, this config entry will only apply to Consul as a service
mesh, so the more generic "cluster" name is not needed.
2021-04-28 16:13:29 -06:00
Freddy 6d15569062
Split Upstream.Identifier() so non-empty namespace is always prepended in ent (#10031) 2021-04-15 13:54:40 -06:00
R.B. Boyer 0470d9ec25 fix broken golden tests 2021-04-14 11:36:47 -05:00
Freddy 57b998e027
Merge pull request #9987 from hashicorp/remove-kube-dns-hack 2021-04-14 10:00:53 -06:00
freddygv 911d7dcaa8 Remove todo that was todone 2021-04-13 10:19:59 -06:00
freddygv 84a5f91a08 Avoid nil panic when cluster config doesn't exist 2021-04-13 10:17:11 -06:00
freddygv eeccba945d Replace TransparentProxy bool with ProxyMode
This PR replaces the original boolean used to configure transparent
proxy mode. It was replaced with a string mode that can be set to:

- "": Empty string is the default for when the setting should be
defaulted from other configuration like config entries.
- "direct": Direct mode is how applications originally opted into the
mesh. Proxy listeners need to be dialed directly.
- "transparent": Transparent mode enables configuring Envoy as a
transparent proxy. Traffic must be captured and redirected to the
inbound and outbound listeners.

This PR also adds a struct for transparent proxy specific configuration.
Initially this is not stored as a pointer. Will revisit that decision
before GA.
2021-04-12 09:35:14 -06:00
Iryna Shustava ff2e70f4ce
cli: Add new `consul connect redirect-traffic` command for applying traffic redirection rules when Transparent Proxy is enabled. (#9910)
* Add new consul connect redirect-traffic command for applying traffic redirection rules when Transparent Proxy is enabled.
* Add new iptables package for applying traffic redirection rules with iptables.
2021-04-09 11:48:10 -07:00
Freddy 38819dac1f
Merge pull request #9042 from lawliet89/tg-rewrite 2021-04-08 11:49:23 -06:00
freddygv b97d3422a7 Stable sort cidr ranges to match on 2021-04-08 11:27:57 -06:00
freddygv 69822fa5ae Remove kube-dns resolution since clusterip will be a tagged addr 2021-04-07 14:15:21 -06:00
R.B. Boyer 82245585c6
connect: add toggle to globally disable wildcard outbound network access when transparent proxy is enabled (#9973)
This adds a new config entry kind "cluster" with a single special name "cluster" where this can be controlled.
2021-04-06 13:19:59 -05:00
Yong Wen Chua 85aa7f2785
Merge branch 'master' of github.com:hashicorp/consul into tg-rewrite 2021-04-06 17:05:26 +08:00
freddygv c4ff0e6eca Uncomment listener tests 2021-03-17 21:37:12 -06:00
freddygv 6c43195e2a Merge master and fix upstream config protocol defaulting 2021-03-17 21:13:40 -06:00
freddygv ca2a62d807 Rename hasChains for clarity 2021-03-17 16:42:29 -06:00
freddygv 3c7e5c3308 PR comments 2021-03-17 16:18:56 -06:00
freddygv 4c58711594 Upstreams loop is only for prepared queries and they are not CentrallyConfigured 2021-03-17 15:32:52 -06:00
freddygv 9256d09255 Handle prepared queries in Upstreams loop and escape hatches in disco chain loop 2021-03-17 15:17:43 -06:00
freddygv 5b59780431 Update xds for transparent proxy 2021-03-17 13:40:49 -06:00
freddygv a3184e6cd7 Refactor makePublicListener
By accepting a name the function can be used for other inbound listeners,
like the one for TransparentProxy.
2021-03-16 19:22:26 -06:00
freddygv d90240d367 Restore old Envoy prefix on escape hatches
This is done because after removing ID and NodeName from
ServiceConfigRequest we will no longer know whether a request coming in
is for a Consul client earlier than v1.10.
2021-03-15 14:12:57 -06:00