Commit Graph

79 Commits

Author SHA1 Message Date
Daniel Nephin 573050a5a9 Make envoy integration tests a `go test` suite (#7842)
* test/integration: only run against 1 envoy version

These tests are slow enough that it seems unlikely that anyone is
running multiple versions locally. If someone wants to, a for loop
outside of run_test.sh should do the right thing.

Remove unused vars.

* Remove logic to iterate over test cases, run a single case

* Add a golang runner for integration tests

* Use build tags for envoy integration tests

And add junit-xml report
2020-05-21 15:54:04 +00:00
Kyle Havlovitz 136549205c
Merge pull request #7759 from hashicorp/ingress/tls-hosts
Add TLS option for Ingress Gateway listeners
2020-05-11 09:18:43 -07:00
Chris Piraino 646902621b Set default protocol to http in TLS integration test 2020-05-08 20:23:23 -07:00
Daniel Nephin 5655d7f34e Add outlier_detection check to integration test
Fix decoding of time.Duration types.
2020-05-08 14:56:57 -04:00
Chris Piraino 5105bf3d67
Require individual services in ingress entry to match protocols (#7774)
We require any non-wildcard services to match the protocol defined in
the listener on write, so that we can maintain a consistent experience
through ingress gateways. This also helps guard against accidental
misconfiguration by a user.

- Update tests that require an updated protocol for ingress gateways
2020-05-06 16:09:24 -05:00
Kyle Havlovitz b2a0251f66 Add a check for custom host to ingress TLS integration test 2020-05-06 15:12:02 -05:00
Kyle Havlovitz d452769d92 Add TLS integration test for ingress gateway
- Pull Consul Root CA from API in order to verify certificate chain
- Assert on the DNSSAN as well to ensure it is correct
2020-05-06 15:12:02 -05:00
Kyle Havlovitz f14c54e25e Add TLS option and DNS SAN support to ingress config
xds: Only set TLS context for ingress listener when requested
2020-05-06 15:12:02 -05:00
Chris Piraino f40833d094 Allow Hosts field to be set on an ingress config entry
- Validate that this cannot be set on a 'tcp' listener nor on a wildcard
service.
- Add Hosts field to api and test in consul config write CLI
- xds: Configure envoy with user-provided hosts from ingress gateways
2020-05-06 15:06:13 -05:00
Kyle Havlovitz 247f9eaf13 Allow ingress gateways to route traffic based on Host header
This commit adds the necessary changes to allow an ingress gateway to
route traffic from a single defined port to multiple different upstream
services in the Consul mesh.

To do this, we now require all HTTP requests coming into the ingress
gateway to specify a Host header that matches "<service-name>.*" in
order to correctly route traffic to the correct service.

- Differentiate multiple listener's route names by port
- Adds a case in xds for allowing default discovery chains to create a
  route configuration when on an ingress gateway. This allows default
  services to easily use host header routing
- ingress-gateways have a single route config for each listener
  that utilizes domain matching to route to different services.
2020-05-06 15:06:13 -05:00
freddygv eddd5bd73b PR comments 2020-04-27 11:08:41 -06:00
freddygv 2a85e44519 Add envoy integration tests 2020-04-27 11:08:40 -06:00
Chris Piraino ecc8a2d6f7 Allow ingress gateways to route through mesh gateways
- Adds integration test for mesh gateways local + remote modes with ingress
- ingress golden files updated for mesh gateway endpoints
2020-04-24 09:31:32 -05:00
Kyle Havlovitz e7b1ee55de Add http routing support and integration test to ingress gateways 2020-04-24 09:31:32 -05:00
Kyle Havlovitz e9e8c0e730
Ingress Gateways for TCP services (#7509)
* Implements a simple, tcp ingress gateway workflow

This adds a new type of gateway for allowing Ingress traffic into Connect from external services.

Co-authored-by: Chris Piraino <cpiraino@hashicorp.com>
2020-04-16 14:00:48 -07:00
Pierre Souchay 2199a134a0 More tolerant assert_alive_wan_member_count to fix unstable tests
Example of failure (very frequent):
https://circleci.com/gh/hashicorp/consul/157985
2020-04-13 16:02:45 +02:00
Hans Hasselberg 66415be90e
connect: support envoy 1.14.1 (#7624) 2020-04-09 20:58:22 +02:00
Chris Piraino 584f90bbeb
Fix flapping of mesh gateway connect-service watches (#7575) 2020-04-02 10:12:13 -05:00
Pierre Souchay eafe9a895a
tests: fixed bats warning (#7544)
This fixes this bats warning:

  duplicate test name(s) in /workdir/primary/bats/verify.bats: test_s1_upstream_made_1_connection

Test was already defined at line 42, rename it to avoid test name duplication
2020-03-31 22:29:27 +02:00
Hans Hasselberg 6a49a42e98
connect: support for envoy 1.13.1 and 1.12.3 (#7380)
* setup new envoy versions for CI
* bump version on the website too.
2020-03-10 11:04:46 +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
Matt Keeler 0041102e29
Change where the envoy snapshots get put when a test fails (#7298)
This will allow us to capture them in CI
2020-03-05 16:01:10 -05:00
Hans Hasselberg 9cb7adb304
add envoy version 1.12.2 and 1.13.0 to the matrix (#7240)
* add 1.12.2

* add envoy 1.13.0

* Introduce -envoy-version to get 1.10.0 passing.

* update old version and fix consul-exec case

* add envoy_version and fix check

* Update Envoy CLI tests to account for the 1.13 compatibility changes.

Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com>
2020-02-10 14:53:04 -05:00
Paschalis Tsilias a335aa57c5
Expose Envoy's /stats for statsd agents (#7173)
* Expose Envoy /stats for statsd agents; Add testcases

* Remove merge conflict leftover

* Add support for prefix instead of path; Fix docstring to mirror these changes

* Add new config field to docs; Add testcases to check that /stats/prometheus is exposed as well

* Parametrize matchType (prefix or path) and value

* Update website/source/docs/connect/proxies/envoy.md

Co-Authored-By: Paul Banks <banks@banksco.de>

Co-authored-by: Paul Banks <banks@banksco.de>
2020-02-03 17:19:34 +00:00
Matt Keeler bfc03ec587
Fix a couple bugs regarding intentions with namespaces (#7169) 2020-01-29 17:30:38 -05:00
Matt Keeler c09693e545
Updates to Config Entries and Connect for Namespaces (#7116) 2020-01-24 10:04:58 -05:00
Chris Piraino f3b54fa535
Allow configuration of upstream connection limits in Envoy (#6829)
* Adds 'limits' field to the upstream configuration of a connect proxy

This allows a user to configure the envoy connect proxy with
'max_connections', 'max_queued_requests', and 'max_concurrent_requests'. These
values are defined in the local proxy on a per-service instance basis
and should thus NOT be thought of as a global-level or even service-level value.
2019-12-03 14:13:33 -06:00
R.B. Boyer 2011f3d7dc
xds: mesh gateway CDS requests are now allowed to receive an empty CDS reply (#6787)
This is the rest of the fix for #6543 that was incompletely fixed in #6576.
2019-11-26 15:55:13 -06:00
Paul Banks 87699eca2f
Fix support for RSA CA keys in Connect. (#6638)
* Allow RSA CA certs for consul and vault providers to correctly sign EC leaf certs.

* Ensure key type ad bits are populated from CA cert and clean up tests

* Add integration test and fix error when initializing secondary CA with RSA key.

* Add more tests, fix review feedback

* Update docs with key type config and output

* Apply suggestions from code review

Co-Authored-By: R.B. Boyer <rb@hashicorp.com>
2019-11-01 13:20:26 +00:00
R.B. Boyer 8dcba472a2
xds: tcp services using the discovery chain should not assume RDS during LDS (#6623)
Previously the logic for configuring RDS during LDS for L7 upstreams was
overapplied to TCP proxies resulting in a cluster name of <emptystring>
being used incorrectly.

Fixes #6621
2019-10-17 16:44:59 -05:00
Freddy fdd10dd8b8
Expose HTTP-based paths through Connect proxy (#6446)
Fixes: #5396

This PR adds a proxy configuration stanza called expose. These flags register
listeners in Connect sidecar proxies to allow requests to specific HTTP paths from outside of the node. This allows services to protect themselves by only
listening on the loopback interface, while still accepting traffic from non
Connect-enabled services.

Under expose there is a boolean checks flag that would automatically expose all
registered HTTP and gRPC check paths.

This stanza also accepts a paths list to expose individual paths. The primary
use case for this functionality would be to expose paths for third parties like
Prometheus or the kubelet.

Listeners for requests to exposed paths are be configured dynamically at run
time. Any time a proxy, or check can be registered, a listener can also be
created.

In this initial implementation requests to these paths are not
authenticated/encrypted.
2019-09-25 20:55:52 -06:00
R.B. Boyer 2cd5a7e542
tests: make envoy integration tests more tolerant of internal retries that may inflate counters (#6539)
This should remove false positives that look like:

    cluster.s2.default.primary.*cx_total - expected count: 2, actual count: 3
2019-09-25 09:08:42 -05:00
Pierre Souchay 2f37d68d9b [BUGFIX][BUILD] When test fail in circle-ci in main, have a proper error message (#6416)
Since FUNCNAME is not defined when running outside a function,
trap does not work and display wrong error message.

Example from https://circleci.com/gh/hashicorp/consul/69506 :

```
  ⨯ FAIL
  /home/circleci/project/test/integration/connect/envoy/run-tests.sh: line 1: FUNCNAME[0]: unbound variable
  make: *** [GNUmakefile:363: test-envoy-integ] Error 1
```

This fix will avoid this error message and display the real cause.
2019-08-28 10:26:05 -04:00
Matt Keeler 9a5b258edf
Turned on Envoy 1.11.1 integration tests (#6347)
I also ran this against 1.5.2 so the docs update claiming compatibility should still be accurate.
2019-08-20 10:20:13 -04:00
R.B. Boyer 72207256b9
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 8e22d80e35
connect: fix failover through a mesh gateway to a remote datacenter (#6259)
Failover is pushed entirely down to the data plane by creating envoy
clusters and putting each successive destination in a different load
assignment priority band. For example this shows that normally requests
go to 1.2.3.4:8080 but when that fails they go to 6.7.8.9:8080:

- name: foo
  load_assignment:
    cluster_name: foo
    policy:
      overprovisioning_factor: 100000
    endpoints:
    - priority: 0
      lb_endpoints:
      - endpoint:
          address:
            socket_address:
              address: 1.2.3.4
              port_value: 8080
    - priority: 1
      lb_endpoints:
      - endpoint:
          address:
            socket_address:
              address: 6.7.8.9
              port_value: 8080

Mesh gateways route requests based solely on the SNI header tacked onto
the TLS layer. Envoy currently only lets you configure the outbound SNI
header at the cluster layer.

If you try to failover through a mesh gateway you ideally would
configure the SNI value per endpoint, but that's not possible in envoy
today.

This PR introduces a simpler way around the problem for now:

1. We identify any target of failover that will use mesh gateway mode local or
   remote and then further isolate any resolver node in the compiled discovery
   chain that has a failover destination set to one of those targets.

2. For each of these resolvers we will perform a small measurement of
   comparative healths of the endpoints that come back from the health API for the
   set of primary target and serial failover targets. We walk the list of targets
   in order and if any endpoint is healthy we return that target, otherwise we
   move on to the next target.

3. The CDS and EDS endpoints both perform the measurements in (2) for the
   affected resolver nodes.

4. For CDS this measurement selects which TLS SNI field to use for the cluster
   (note the cluster is always going to be named for the primary target)

5. For EDS this measurement selects which set of endpoints will populate the
   cluster. Priority tiered failover is ignored.

One of the big downsides to this approach to failover is that the failover
detection and correction is going to be controlled by consul rather than
deferring that entirely to the data plane as with the prior version. This also
means that we are bound to only failover using official health signals and
cannot make use of data plane signals like outlier detection to affect
failover.

In this specific scenario the lack of data plane signals is ok because the
effectiveness is already muted by the fact that the ultimate destination
endpoints will have their data plane signals scrambled when they pass through
the mesh gateway wrapper anyway so we're not losing much.

Another related fix is that we now use the endpoint health from the
underlying service, not the health of the gateway (regardless of
failover mode).
2019-08-05 13:30:35 -05:00
R.B. Boyer 6393edba53
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 3053342198
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 e039dfd7f8
connect: rework how the service resolver subset OnlyPassing flag works (#6173)
The main change is that we no longer filter service instances by health,
preferring instead to render all results down into EDS endpoints in
envoy and merely label the endpoints as HEALTHY or UNHEALTHY.

When OnlyPassing is set to true we will force consul checks in a
'warning' state to render as UNHEALTHY in envoy.

Fixes #6171
2019-07-23 20:20:24 -05:00
R.B. Boyer aca2c5de3f
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 4a9f4b97e6
tests: when running envoy integration tests try to limit container bleedover between cases (#6148) 2019-07-17 09:20:10 -05:00
R.B. Boyer 8a90185bbd
unknown fields now fail, so omit these unimplemented fields (#6125) 2019-07-12 14:04:15 -05:00
R.B. Boyer 9138a97054
Fix bug in service-resolver redirects if the destination uses a default resolver. (#6122)
Also:
- add back an internal http endpoint to dump a compiled discovery chain for debugging purposes

Before the CompiledDiscoveryChain.IsDefault() method would test:

- is this chain just one resolver step?
- is that resolver step just the default?

But what I forgot to test:

- is that resolver step for the same service that the chain represents?

This last point is important because if you configured just one config
entry:

    kind = "service-resolver"
    name = "web"
    redirect {
      service = "other"
    }

and requested the chain for "web" you'd get back a **default** resolver
for "other".  In the xDS code the IsDefault() method is used to
determine if this chain is "empty". If it is then we use the
pre-discovery-chain logic that just uses data embedded in the Upstream
object (and still lets the escape hatches function).

In the example above that means certain parts of the xDS code were going
to try referencing a cluster named "web..." despite the other parts of
the xDS code maintaining clusters named "other...".
2019-07-12 12:21:25 -05:00
R.B. Boyer 911ed76e5b
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 d4e58e9773 test: for envoy integration tests bump the time to wait for the upstream to be healthy (#6109) 2019-07-10 18:07:47 -04:00
R.B. Boyer 20caa4f744
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
Jack Pearkes e6f1b78efb Make cluster names SNI always (#6081)
* Make cluster names SNI always

* Update some tests

* Ensure we check for prepared query types

* Use sni for route cluster names

* Proper mesh gateway mode defaulting when the discovery chain is used

* Ignore service splits from PatchSliceOfMaps

* Update some xds golden files for proper test output

* Allow for grpc/http listeners/cluster configs with the disco chain

* Update stats expectation
2019-07-08 12:48:48 +01:00
R.B. Boyer 4bdb690a25
activate most discovery chain features in xDS for envoy (#6024) 2019-07-01 22:10:51 -05:00
Hans Hasselberg 33a7df3330
tls: auto_encrypt enables automatic RPC cert provisioning for consul clients (#5597) 2019-06-27 22:22:07 +02:00
Paul Banks 9f656a2dc8
Fix envoy 1.10 exec (#5964)
* Make exec test assert Envoy version - it was not rebuilding before and so often ran against wrong version. This makes 1.10 fail consistenty.

* Switch Envoy exec to use a named pipe rather than FD magic since Envoy 1.10 doesn't support that.

* Refactor to use an internal shim command for piping the bootstrap through.

* Fmt. So sad that vscode golang fails so often these days.

* go mod tidy

* revert go mod tidy changes

* Revert "ignore consul-exec tests until fixed (#5986)"

This reverts commit 683262a686.

* Review cleanups
2019-06-21 16:06:25 +01:00