Commit Graph

68 Commits

Author SHA1 Message Date
R.B. Boyer baf886c6f3
proxycfg: introduce explicit UpstreamID in lieu of bare string (#12125)
The gist here is that now we use a value-type struct proxycfg.UpstreamID
as the map key in ConfigSnapshot maps where we used to use "upstream
id-ish" strings. These are internal only and used just for bidirectional
trips through the agent cache keyspace (like the discovery chain target
struct).

For the few places where the upstream id needs to be projected into xDS,
that's what (proxycfg.UpstreamID).EnvoyID() is for. This lets us ALWAYS
inject the partition and namespace into these things without making
stuff like the golden testdata diverge.
2022-01-20 10:12:04 -06:00
Daniel Upton caa5b5a5a6
xds: prefer fed state gateway definitions if they're fresher (#11522)
Fixes an issue described in #10132, where if two DCs are WAN federated
over mesh gateways, and the gateway in the non-primary DC is terminated
and receives a new IP address (as is commonly the case when running them
on ephemeral compute instances) the primary DC is unable to re-establish
its connection until the agent running on its own gateway is restarted.

This was happening because we always preferred gateways discovered by
the `Internal.ServiceDump` RPC (which would fail because there's no way
to dial the remote DC) over those discovered in the federation state,
which is replicated as long as the primary DC's gateway is reachable.
2021-11-09 16:45:36 +00:00
freddygv ecccf22fd7 Exclude default partition from GatewayKey string
This will behave the way we handle SNI and SPIFFE IDs, where the default
partition is excluded.

Excluding the default ensures that don't attempt to compare default.dc2
to dc2 in OSS.
2021-11-01 14:45:52 -06:00
freddygv ce43e8cf99 Store GatewayKey in proxycfg snapshot for re-use 2021-11-01 13:58:53 -06:00
freddygv f3f15640a9 Update mesh gateway proxy watches for partitions
This commit updates mesh gateway watches for cross-partitions
communication.

* Mesh gateways are keyed by partition and datacenter.

* Mesh gateways will now watch gateways in partitions that export
services to their partition.

* Mesh gateways in non-default partitions will not have cross-datacenter
watches. They are not involved in traditional WAN federation.
2021-10-27 09:03:56 -06:00
freddygv 3966677aaf Finish removing useInDatacenter 2021-10-26 23:36:01 -06:00
freddygv ea311d2e47 Configure sidecars to watch gateways in partitions
Previously the datacenter of the gateway was the key identifier, now it
is the datacenter and partition.

When dialing services in other partitions or datacenters we now watch
the appropriate partition.
2021-10-26 23:35:37 -06:00
Paul Banks 8548e15f1b Update proxycfg to hold more ingress config state 2021-09-23 10:08:02 +01:00
Paul Banks 1dd1683ed9 Header manip for split legs plumbing 2021-09-10 21:09:24 +01:00
Paul Banks f70f7b2389 Header manip for service-router plumbed through 2021-09-10 21:09:24 +01:00
Paul Banks fc2ed4cdf4 Ingress gateway header manip plumbing 2021-09-10 21:09:24 +01:00
Dhia Ayachi 96d7842118
partition dicovery chains (#10983)
* partition dicovery chains

* fix default partition for OSS
2021-09-07 16:29:32 -04:00
freddygv ed79e38a36 Update comment for test function 2021-08-20 17:40:33 -06:00
freddygv b1050e4229 Update prepared query cluster SAN validation
Previously SAN validation for prepared queries was broken because we
validated against the name, namespace, and datacenter for prepared
queries.

However, prepared queries can target:

- Services with a name that isn't their own
- Services in multiple datacenters

This means that the SpiffeID to validate needs to be based on the
prepared query endpoints, and not the prepared query's upstream
definition.

This commit updates prepared query clusters to account for that.
2021-08-20 17:40:33 -06:00
freddygv 1f192eb7d9 Fixup proxy config test fixtures
- The TestNodeService helper created services with the fixed name "web",
and now that name is overridable.

- The discovery chain snapshot didn't have prepared query endpoints so
the endpoints tests were missing data for prepared queries
2021-08-20 17:38:57 -06:00
R.B. Boyer 61f1c01b83
agent: ensure that most agent behavior correctly respects partition configuration (#10880) 2021-08-19 15:09:42 -05:00
Mark Anderson c3510e6d47 Add tests for xds/listeners
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
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
freddygv 3c97e5a777 Update proxycfg for transparent proxy 2021-03-17 13:40:39 -06:00
freddygv 60cb306524 Add session flag to cookie config 2020-09-11 18:34:03 -06:00
freddygv 5871b667a5 Revert EnvoyConfig nesting 2020-09-11 09:21:43 -06:00
freddygv 0c50b8e769 Add explicit protocol overrides in tgw xds test cases 2020-09-03 08:57:48 -06:00
freddygv daad3b9210 Remove LB infix and move injection to xds 2020-09-02 15:13:50 -06:00
freddygv d7bda050e0 Restructure structs and other PR comments 2020-09-02 09:10:50 -06:00
freddygv 194d34b09d Pass LB config to Envoy via xDS 2020-08-28 14:27:40 -06:00
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
Matt Keeler 2ec4e46eb2
Default Cache rate limiting options in New
Also get rid of the TestCache helper which was where these defaults were happening previously.
2020-07-28 12:34:35 -04:00
Matt Keeler 6d94900cd7
Disable background cache refresh for Connect Leaf Certs
The rationale behind removing them is that all of our own code (xDS, builtin connect proxy) use the cache notification mechanism. This ensures that the blocking fetch behind the scenes is always executing. Therefore the only way you might go to get a certificate and have to wait is when 1) the request has never been made for that cert before or 2) you are using the v1/agent/connect/ca/leaf API for retrieving the cert yourself.

In the first case, the refresh change doesn’t alter the behavior. In the second case, it can be mitigated by using blocking queries with that API which just like normal cache notification mechanism will cause the blocking fetch to be initiated and to get leaf certs as soon as needed.

If you are not using blocking queries, or Envoy/xDS, or the builtin connect proxy but are retrieving the certs yourself then the HTTP endpoint might take a little longer to respond.

This also renames the RefreshTimeout field on the register options to QueryTimeout to more accurately reflect that it is used for any type that supports blocking queries.
2020-07-21 12:19:25 -04:00
Freddy 7e7c783c8f
Always return a gateway cluster (#8158) 2020-06-19 13:31:39 -06:00
Daniel Nephin 89d95561df Enable gofmt simplify
Code changes done automatically with 'gofmt -s -w'
2020-06-16 13:21:11 -04:00
freddygv 1e7e716742 Move compound service names to use ServiceName type 2020-06-12 13:47:43 -06:00
Freddy f759a48726
Enable gateways to resolve hostnames to IPv4 addresses (#7999)
The DNS resolution will be handled by Envoy and defaults to LOGICAL_DNS. This discovery type can be overridden on a per-gateway basis with the envoy_dns_discovery_type Gateway Option.

If a service contains an instance with a hostname as an address we set the Envoy cluster to use DNS as the discovery type rather than EDS. Since both mesh gateways and terminating gateways route to clusters using SNI, whenever there is a mix of hostnames and IP addresses associated with a service we use the hostname + CDS rather than the IPs + EDS.

Note that we detect hostnames by attempting to parse the service instance's address as an IP. If it is not a valid IP we assume it is a hostname.
2020-06-03 15:28:45 -06:00
Kyle Havlovitz bd6bb3bf2d 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
Kyle Havlovitz e4268c8b7f Support multiple listeners referencing the same service in gateway definitions 2020-05-06 15:06:13 -05:00
Kyle Havlovitz b21cd112e5 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
Freddy f5c1e5268b
TLS Origination for Terminating Gateways (#7671) 2020-04-27 16:25:37 -06:00
freddygv 5e260b2913 Use golden files for gateway certs and fix listener test flakiness 2020-04-27 11:08:41 -06:00
freddygv 929491c979 Add subset support 2020-04-27 11:08:40 -06:00
freddygv 2e35a9bb18 Add xds cluster/listener/endpoint management 2020-04-27 11:08:40 -06:00
Chris Piraino af5cc8fd92 Add all the xds ingress tests
This commit copies many of the connect-proxy xds testcases and reuses
for ingress gateways. This allows us to more easily see changes to the
envoy configuration when make updates to ingress gateways.
2020-04-24 09:31:32 -05:00
Chris Piraino b131b857da Pull out setupTestVariationConfigEntriesAndSnapshot in proxycfg
This allows us to reuse the same variations for ingress gateway testing
2020-04-24 09:31:32 -05:00
Daniel Nephin 1251c01b73 agent/cache: Make all cache options RegisterOptions
Previously the SupportsBlocking option was specified by a method on the
type, and all the other options were specified from RegisterOptions.

This change moves RegisterOptions to a method on the type, and moves
SupportsBlocking into the options struct.

Currently there are only 2 cache-types. So all cache-types can implement
this method by embedding a struct with those predefined values. In the
future if a cache type needs to be registered more than once with different
options it can remove the embedded type and implement the method in a way
that allows for paramaterization.
2020-04-16 18:56:34 -04:00
Kyle Havlovitz 6a5eba63ab
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
Andy Lindeman 42224fe45c
proxycfg: support path exposed with non-HTTP2 protocol (#7510)
If a proxied service is a gRPC or HTTP2 service, but a path is exposed
using the HTTP1 or TCP protocol, Envoy should not be configured with
`http2ProtocolOptions` for the cluster backing the path.

A situation where this comes up is a gRPC service whose healthcheck or
metrics route (e.g. for Prometheus) is an HTTP1 service running on
a different port. Previously, if these were exposed either using
`Expose: { Checks: true }` or `Expose: { Paths: ... }`, Envoy would
still be configured to communicate with the path over HTTP2, which would
not work properly.
2020-04-02 09:35:04 +02:00
R.B. Boyer a7fb26f50f
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 111cb51fc8
Testing updates to support namespaced testing of the agent/xds… (#7185)
* Various testing updates to support namespaced testing of the agent/xds package

* agent/proxycfg package updates to support better namespace testing
2020-02-03 09:26:47 -05:00
Matt Keeler 485a0a65ea
Updates to Config Entries and Connect for Namespaces (#7116) 2020-01-24 10:04:58 -05:00
Aestek 9329cbac0a Add support for dual stack IPv4/IPv6 network (#6640)
* Use consts for well known tagged adress keys

* Add ipv4 and ipv6 tagged addresses for node lan and wan

* Add ipv4 and ipv6 tagged addresses for service lan and wan

* Use IPv4 and IPv6 address in DNS
2020-01-17 09:54:17 -05:00
R.B. Boyer b091647090
agent: allow mesh gateways to initialize even if there are no connect services registered yet (#6576)
Fixes #6543

Also improved some of the proxycfg tests to cover snapshot validity
better.
2019-10-17 16:46:49 -05:00
Freddy 5eace88ce2
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