30 Commits (356b29bf358eb77db934d8ad7ec3ad3bf1d8b581)

Author	SHA1	Message	Date
Ronald	94ec4eb2f4	copyright headers for agent folder (#16704) ... * copyright headers for agent folder * Ignore test data files * fix proto files and remove headers in agent/uiserver folder * ignore deep-copy files	2 years ago
R.B. Boyer	9a485cdb49	proxycfg: ensure that an irrecoverable error in proxycfg closes the xds session and triggers a replacement proxycfg watcher (#16497) ... Receiving an "acl not found" error from an RPC in the agent cache and the streaming/event components will cause any request loops to cease under the assumption that they will never work again if the token was destroyed. This prevents log spam (#14144, #9738). Unfortunately due to things like: - authz requests going to stale servers that may not have witnessed the token creation yet - authz requests in a secondary datacenter happening before the tokens get replicated to that datacenter - authz requests from a primary TO a secondary datacenter happening before the tokens get replicated to that datacenter The caller will get an "acl not found" *before* the token exists, rather than just after. The machinery added above in the linked PRs will kick in and prevent the request loop from looping around again once the tokens actually exist. For `consul-dataplane` usages, where xDS is served by the Consul servers rather than the clients ultimately this is not a problem because in that scenario the `agent/proxycfg` machinery is on-demand and launched by a new xDS stream needing data for a specific service in the catalog. If the watching goroutines are terminated it ripples down and terminates the xDS stream, which CDP will eventually re-establish and restart everything. For Consul client usages, the `agent/proxycfg` machinery is ahead-of-time launched at service registration time (called "local" in some of the proxycfg machinery) so when the xDS stream comes in the data is already ready to go. If the watching goroutines terminate it should terminate the xDS stream, but there's no mechanism to re-spawn the watching goroutines. If the xDS stream reconnects it will see no `ConfigSnapshot` and will not get one again until the client agent is restarted, or the service is re-registered with something changed in it. This PR fixes a few things in the machinery: - there was an inadvertent deadlock in fetching snapshot from the proxycfg machinery by xDS, such that when the watching goroutine terminated the snapshots would never be fetched. This caused some of the xDS machinery to get indefinitely paused and not finish the teardown properly. - Every 30s we now attempt to re-insert all locally registered services into the proxycfg machinery. - When services are re-inserted into the proxycfg machinery we special case "dead" ones such that we unilaterally replace them rather that doing that conditionally.	2 years ago
Derek Menteer	6599a9be1d	Fix nil-pointer panics from proxycfg package. (#16277) ... Prior to this PR, servers / agents would panic and crash if an ingress or api gateway were configured to use a discovery chain that both: 1. Referenced a peered service 2. Had a mesh gateway mode of local This could occur, because code for handling upstream watches was shared between both connect-proxy and the gateways. As a short-term fix, this PR ensures that the maps are always initialized for these gateway services. This PR also wraps the proxycfg execution and service registration calls with recover statements to ensure that future issues like this do not put the server into an unrecoverable state.	2 years ago
Dan Upton	328e3ff563	proxycfg: rate-limit delivery of config snapshots (#14960) ... Adds a user-configurable rate limiter to proxycfg snapshot delivery, with a default limit of 250 updates per second. This addresses a problem observed in our load testing of Consul Dataplane where updating a "global" resource such as a wildcard intention or the proxy-defaults config entry could starve the Raft or Memberlist goroutines of CPU time, causing general cluster instability.	2 years ago
Daniel Upton	13c04a13af	proxycfg: terminate stream on irrecoverable errors ... This is the OSS portion of enterprise PR 2339. It improves our handling of "irrecoverable" errors in proxycfg data sources. The canonical example of this is what happens when the ACL token presented by Envoy is deleted/revoked. Previously, the stream would get "stuck" until the xDS server re-checked the token (after 5 minutes) and terminated the stream. Materializers would also sit burning resources retrying something that could never succeed. Now, it is possible for data sources to mark errors as "terminal" which causes the xDS stream to be closed immediately. Similarly, the submatview.Store will evict materializers when it observes they have encountered such an error.	2 years ago
Dan Upton	adeabed126	proxycfg: replace direct agent cache usage with interfaces (#13320) ... This is the OSS portion of enterprise PRs 1904, 1905, 1906, 1907, 1949, and 1971. It replaces the proxycfg manager's direct dependency on the agent cache with interfaces that will be implemented differently when serving xDS sessions from a Consul server.	3 years ago
Dan Upton	2427e38839	Enable servers to configure arbitrary proxies from the catalog (#13244) ... OSS port of enterprise PR 1822 Includes the necessary changes to the `proxycfg` and `xds` packages to enable Consul servers to configure arbitrary proxies using catalog data. Broadly, `proxycfg.Manager` now has public methods for registering, deregistering, and listing registered proxies — the existing local agent state-sync behavior has been moved into a separate component that makes use of these methods. When an xDS session is started for a proxy service in the catalog, a goroutine will be spawned to watch the service in the server's state store and re-register it with the `proxycfg.Manager` whenever it is updated (and clean it up when the client goes away).	3 years ago
Dan Upton	d7f8a8e4ef	proxycfg: remove dependency on `cache.UpdateEvent` (#13144) ... OSS portion of enterprise PR 1857. This removes (most) references to the `cache.UpdateEvent` type in the `proxycfg` package. As we're going to be direct usage of the agent cache with interfaces that can be satisfied by alternative server-local datasources, it doesn't make sense to depend on this type everywhere anymore (particularly on the `state.ch` channel). We also plan to extract `proxycfg` out of Consul into a shared library in the future, which would require removing this dependency. Aside from a fairly rote find-and-replace, the main change is that the `cache.Cache` and `health.Client` types now accept a callback function parameter, rather than a `chan<- cache.UpdateEvents`. This allows us to do the type conversion without running another goroutine.	3 years ago
Dhia Ayachi	e653f81919	reset `coalesceTimer` to nil as soon as the event is consumed (#11924) ... * reset `coalesceTimer` to nil as soon as the event is consumed * add change log * refactor to add relevant test. * fix linter * Apply suggestions from code review Co-authored-by: Freddy <freddygv@users.noreply.github.com> * remove non needed check Co-authored-by: Freddy <freddygv@users.noreply.github.com>	3 years ago
R.B. Boyer	097e1645e3	agent: ensure that most agent behavior correctly respects partition configuration (#10880)	3 years ago
Daniel Nephin	0575498d0d	proxycfg: Lookup the agent token as a default ... When no ACL token is provided with the service registration.	3 years ago
R.B. Boyer	188e8dc51f	agent/structs: add a bunch more EnterpriseMeta helper functions to help with partitioning (#10669)	3 years ago
Daniel Nephin	32c15d9a88	proxycfg: split state into kind-specific types ... This commit extracts all the kind-specific logic into handler types, and keeps the generic parts on the state struct. This change should make it easier to add new kinds, and see the implementation of each kind more clearly.	3 years ago
Daniel Nephin	016c5611d1	proxycfg: extract two types from state struct ... These two new struct types will allow us to make polymorphic handler for each kind, instad of having all the logic for each proxy kind on the state struct.	4 years ago
Daniel Nephin	f40b76af2d	proxycfg: use rpcclient/health.Client instead of passing around cache name ... This should allow us to swap out the implementation with something other than `agent/cache` without making further code changes.	4 years ago
Daniel Nephin	906834ce8e	proxycfg: Use streaming in connect state	4 years ago
R.B. Boyer	74d5df7c7a	xds: use envoy's rbac filter to handle intentions entirely within envoy (#8569)	4 years ago
Chris Piraino	9d9e23cc44	Add service id context to the proxycfg logger ... This is especially useful when multiple proxies are all querying the same Consul agent.	5 years ago
Kyle Havlovitz	f14c54e25e	Add TLS option and DNS SAN support to ingress config ... xds: Only set TLS context for ingress listener when requested	5 years ago
freddygv	24207226ca	Add proxycfg state management for terminating-gateways	5 years ago
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>	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
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
Matt Keeler	c09693e545	Updates to Config Entries and Connect for Namespaces (#7116)	5 years ago
Matt Keeler	5934f803bf	Sync of OSS changes to support namespaces (#6909)	5 years ago
Mike Morris	65be58703c	connect: remove managed proxies (#6220) ... * connect: remove managed proxies implementation and all supporting config options and structs * connect: remove deprecated ProxyDestination * command: remove CONNECT_PROXY_TOKEN env var * agent: remove entire proxyprocess proxy manager * test: remove all managed proxy tests * test: remove irrelevant managed proxy note from TestService_ServerTLSConfig * test: update ContentHash to reflect managed proxy removal * test: remove deprecated ProxyDestination test * telemetry: remove managed proxy note * http: remove /v1/agent/connect/proxy endpoint * ci: remove deprecated test exclusion * website: update managed proxies deprecation page to note removal * website: remove managed proxy configuration API docs * website: remove managed proxy note from built-in proxy config * website: add note on removing proxy subdirectory of data_dir	5 years ago
R.B. Boyer	4bdb690a25	activate most discovery chain features in xDS for envoy (#6024)	5 years ago
Matt Keeler	8d953f5840	Implement Mesh Gateways ... This includes both ingress and egress functionality.	5 years ago
Paul Banks	c9217c958e	merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in	6 years ago
Paul Banks	0f27ffd163	Proxy Config Manager (#4729) ... * Proxy Config Manager This component watches for local state changes on the agent and ensures that each service registered locally with Kind == connect-proxy has it's state being actively populated in the cache. This serves two purposes: 1. For the built-in proxy, it ensures that the state needed to accept connections is available in RAM shortly after registration and likely before the proxy actually starts accepting traffic. 2. For (future - next PR) xDS server and other possible future proxies that require _push_ based config discovery, this provides a mechanism to subscribe and be notified about updates to a proxy instance's config including upstream service discovery results. * Address review comments * Better comments; Better delivery of latest snapshot for slow watchers; Embed Config * Comment typos * Add upstream Stringer for funsies	6 years ago