consul

Tree: f51a9d29ae

Author	SHA1	Message	Date
Dan Upton	b9c485dcb8	Controller Supervision (#17016 )	2 years ago
Ronald	b64674623e	Copyright headers for missing files/folders (#16708 ) * copyright headers for agent folder	2 years ago
Nathan Coleman	e0f4f6c152	Run config entry controller routines on leader (#16054 )	2 years ago
Dan Upton	1c2c975b0b	xDS Load Balancing (#14397 ) Prior to #13244, connect proxies and gateways could only be configured by an xDS session served by the local client agent. In an upcoming release, it will be possible to deploy a Consul service mesh without client agents. In this model, xDS sessions will be handled by the servers themselves, which necessitates load-balancing to prevent a single server from receiving a disproportionate amount of load and becoming overwhelmed. This introduces a simple form of load-balancing where Consul will attempt to achieve an even spread of load (xDS sessions) between all healthy servers. It does so by implementing a concurrent session limiter (limiter.SessionLimiter) and adjusting the limit according to autopilot state and proxy service registrations in the catalog. If a server is already over capacity (i.e. the session limit is lowered), Consul will begin draining sessions to rebalance the load. This will result in the client receiving a `RESOURCE_EXHAUSTED` status code. It is the client's responsibility to observe this response and reconnect to a different server. Users of the gRPC client connection brokered by the consul-server-connection-manager library will get this for free. The rate at which Consul will drain sessions to rebalance load is scaled dynamically based on the number of proxies in the catalog.	2 years ago
alex	927cee692b	peering: emit exported services count metric (#13811 ) Signed-off-by: acpana <8968914+acpana@users.noreply.github.com>	2 years ago
Riddhi Shah	d8d8c8603e	Add support for merge-central-config query param (#13001 ) Adds a new query param merge-central-config for use with the below endpoints: /catalog/service/:service /catalog/connect/:service /health/service/:service /health/connect/:service If set on the request, the response will include a fully resolved service definition which is merged with the proxy-defaults/global and service-defaults/:service config entries (on-demand style). This is useful to view the full service definition for a mesh service (connect-proxy kind or gateway kind) which might not be merged before being written into the catalog (example: in case of services in the agentless model).	3 years ago
R.B. Boyer	f507f62f3c	peering: initial sync (#12842 ) - Add endpoints related to peering: read, list, generate token, initiate peering - Update node/service/check table indexing to account for peers - Foundational changes for pushing service updates to a peer - Plumb peer name through Health.ServiceNodes path see: ENT-1765, ENT-1280, ENT-1283, ENT-1283, ENT-1756, ENT-1739, ENT-1750, ENT-1679, ENT-1709, ENT-1704, ENT-1690, ENT-1689, ENT-1702, ENT-1701, ENT-1683, ENT-1663, ENT-1650, ENT-1678, ENT-1628, ENT-1658, ENT-1640, ENT-1637, ENT-1597, ENT-1634, ENT-1613, ENT-1616, ENT-1617, ENT-1591, ENT-1588, ENT-1596, ENT-1572, ENT-1555 Co-authored-by: R.B. Boyer <rb@hashicorp.com> Co-authored-by: freddygv <freddy@hashicorp.com> Co-authored-by: Chris S. Kim <ckim@hashicorp.com> Co-authored-by: Evan Culver <eculver@hashicorp.com> Co-authored-by: Nitya Dhanushkodi <nitya@hashicorp.com>	3 years ago
R.B. Boyer	fc9b1a277d	sync changes to oss files made in enterprise (#10670 )	3 years ago
R.B. Boyer	71d45a3460	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	4 years ago
freddygv	5ba14ad41d	Add trace logs to proxycfg state runner and xds srv	4 years ago
Paul Banks	332477f24c	Add /v1/internal/ui/metrics-proxy API endpoint that proxies to a configured metrics provider backend.	4 years ago
Paul Banks	e4db845246	Refactor uiserver to separate package, cleaner Reloading	4 years ago
Chris Piraino	3feae7f77b	Report node/service usage metrics from every server Using the newly provided state store methods, we periodically emit usage metrics from the servers. We decided to emit these metrics from all servers, not just the leader, because that means we do not have to care about leader election flapping causing metrics turbulence, and it seems reasonable for each server to emit its own view of the state, even if they should always converge rapidly.	4 years ago
Kyle Havlovitz	97f1f341d6	Automatically renew the token used by the Vault CA provider	4 years ago
Matt Keeler	3dbbd2d37d	Implement Client Agent Auto Config There are a couple of things in here. First, just like auto encrypt, any Cluster.AutoConfig RPC will implicitly use the less secure RPC mechanism. This drastically modifies how the Consul Agent starts up and moves most of the responsibilities (other than signal handling) from the cli command and into the Agent.	4 years ago
freddygv	15c74d6943	Move GatewayServices out of Internal	5 years ago
Hans Hasselberg	51549bd232	rpc: oss changes for network area connection pooling (#7735 )	5 years ago
freddygv	24207226ca	Add proxycfg state management for terminating-gateways	5 years ago
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.	5 years ago
R.B. Boyer	0ecb4538c1	agent: differentiate wan vs lan loggers in memberlist and serf (#7205 ) This should be a helpful change until memberlist and serf can be properly switched to native hclog.	5 years ago
Chris Piraino	401221de58	Allow users to configure either unstructured or JSON logging (#7130 ) * hclog Allow users to choose between unstructured and JSON logging	5 years ago

22 Commits (f51a9d29aea20bd52d8d0bdba38cba9ea476e653)