Commit Graph

8 Commits

Author SHA1 Message Date
R.B. Boyer f2b8bf109c
xds: use envoy's rbac filter to handle intentions entirely within envoy (#8569) 2020-08-27 12:20:58 -05:00
R.B. Boyer 91df06098c
xds: improve how envoy metrics are emitted (#6312)
Since generated envoy clusters all are named using (mostly) SNI syntax
we can have envoy read the various fields out of that structure and emit
it as stats labels to the various telemetry backends.

I changed the delimiter for the 'customization hash' from ':' to '~'
because ':' is always reencoded by envoy as '_' when generating metrics
keys.
2019-08-16 09:30:17 -05:00
R.B. Boyer 4666599e18
connect: reconcile how upstream configuration works with discovery chains (#6225)
* connect: reconcile how upstream configuration works with discovery chains

The following upstream config fields for connect sidecars sanely
integrate into discovery chain resolution:

- Destination Namespace/Datacenter: Compilation occurs locally but using
different default values for namespaces and datacenters. The xDS
clusters that are created are named as they normally would be.

- Mesh Gateway Mode (single upstream): If set this value overrides any
value computed for any resolver for the entire discovery chain. The xDS
clusters that are created may be named differently (see below).

- Mesh Gateway Mode (whole sidecar): If set this value overrides any
value computed for any resolver for the entire discovery chain. If this
is specifically overridden for a single upstream this value is ignored
in that case. The xDS clusters that are created may be named differently
(see below).

- Protocol (in opaque config): If set this value overrides the value
computed when evaluating the entire discovery chain. If the normal chain
would be TCP or if this override is set to TCP then the result is that
we explicitly disable L7 Routing and Splitting. The xDS clusters that
are created may be named differently (see below).

- Connect Timeout (in opaque config): If set this value overrides the
value for any resolver in the entire discovery chain. The xDS clusters
that are created may be named differently (see below).

If any of the above overrides affect the actual result of compiling the
discovery chain (i.e. "tcp" becomes "grpc" instead of being a no-op
override to "tcp") then the relevant parameters are hashed and provided
to the xDS layer as a prefix for use in naming the Clusters. This is to
ensure that if one Upstream discovery chain has no overrides and
tangentially needs a cluster named "api.default.XXX", and another
Upstream does have overrides for "api.default.XXX" that they won't
cross-pollinate against the operator's wishes.

Fixes #6159
2019-08-01 22:03:34 -05:00
Matt Keeler 155cdf022f
Envoy Mesh Gateway integration tests (#6187)
* Allow setting the mesh gateway mode for an upstream in config files

* Add envoy integration test for mesh gateways

This necessitated many supporting changes in most of the other test cases.

Add remote mode mesh gateways integration test
2019-07-24 17:01:42 -04:00
R.B. Boyer e060748d3f
tests: adding new envoy integration tests for L7 service-resolvers (#6129)
Additionally:

- wait for bootstrap config entries to be applied

- run the verify container in the host's PID namespace so we can kill
envoys without mounting the docker socket

* assert that we actually send HEALTHY and UNHEALTHY endpoints down in EDS during failover
2019-07-23 20:08:36 -05:00
R.B. Boyer c7df80ebf9
tests: further reduce envoy integration test flakiness (#6112)
In addition to waiting until s2 shows up healthy in the Catalog, wait
until s2 endpoints show up healthy via EDS in the s1 upstream clusters.
2019-07-12 11:12:56 -05:00
R.B. Boyer 2165e97efa
test: for envoy integration tests, wait until 's2' is healthy in consul before interrogating envoy (#6108)
When the envoy healthy panic threshold was explicitly disabled as part
of L7 traffic management it changed how envoy decided to load balance to
endpoints in a cluster. This only matters when envoy is in "panic mode"
aka "when you have a bunch of unhealthy endpoints". Panic mode sends
traffic to unhealthy instances in certain circumstances.

Note: Prior to explicitly disabling the healthy panic threshold, the
default value is 50%.

What was happening is that the test harness was bringing up consul the
sidecars, and the service instances all at once and sometimes the
proxies wouldn't have time to be checked by consul to be labeled as
'passing' in the catalog before a round of EDS happened.

The xDS server in consul effectively queries /v1/health/connect/s2 and
gets 1 result, but that one result has a 'critical' check so the xDS
server sends back that endpoint labeled as UNHEALTHY.

Envoy sees that 100% of the endpoints in the cluster are unhealthy and
would enter panic mode and still send traffic to s2. This is why the
test suites PRIOR to disabling the healthy panic threshold worked. They
were _incorrectly_ passing.

When the healthy panic threshol is disabled, envoy never enters panic
mode in this situation and thus the cluster has zero healthy endpoints
so load balancing goes nowhere and the tests fail.

Why does this only affect the test suites for envoy 1.8.0? My guess is
that https://github.com/envoyproxy/envoy/pull/4442 was merged into the
1.9.x series and somehow that plays a role.

This PR modifies the bats scripts to explicitly wait until the upstream
sidecar is healthy as measured by /v1/health/connect/s2?passing BEFORE
trying to interrogate envoy which should make the tests less racy.
2019-07-10 15:58:25 -05:00
Paul Banks d6c0557e86
Connect: allow configuring Envoy for L7 Observability (#5558)
* Add support for HTTP proxy listeners

* Add customizable bootstrap configuration options

* Debug logging for xDS AuthZ

* Add Envoy Integration test suite with basic test coverage

* Add envoy command tests to cover new cases

* Add tracing integration test

* Add gRPC support WIP

* Merged changes from master Docker. get CI integration to work with same Dockerfile now

* Make docker build optional for integration

* Enable integration tests again!

* http2 and grpc integration tests and fixes

* Fix up command config tests

* Store all container logs as artifacts in circle on fail

* Add retries to outer part of stats measurements as we keep missing them in CI

* Only dump logs on failing cases

* Fix typos from code review

* Review tidying and make tests pass again

* Add debug logs to exec test.

* Fix legit test failure caused by upstream rename in envoy config

* Attempt to reduce cases of bad TLS handshake in CI integration tests

* bring up the right service

* Add prometheus integration test

* Add test for denied AuthZ both HTTP and TCP

* Try ANSI term for Circle
2019-04-29 17:27:57 +01:00