42 Commits (040f47c46e6e661c52d047258a064edc47cb431f)

Author	SHA1	Message	Date
Matt Keeler	973341a592	ACL Authorizer overhaul (#6620) ... * ACL Authorizer overhaul To account for upcoming features every Authorization function can now take an extra *acl.EnterpriseAuthorizerContext. These are unused in OSS and will always be nil. Additionally the acl package has received some thorough refactoring to enable all of the extra Consul Enterprise specific authorizations including moving sentinel enforcement into the stubbed structs. The Authorizer funcs now return an acl.EnforcementDecision instead of a boolean. This improves the overall interface as it makes multiple Authorizers easily chainable as they now indicate whether they had an authoritative decision or should use some other defaults. A ChainedAuthorizer was added to handle this Authorizer enforcement chain and will never itself return a non-authoritative decision. * Include stub for extra enterprise rules in the global management policy * Allow for an upgrade of the global-management policy	5 years ago
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.	5 years ago
R.B. Boyer	dfcdc41ef8	connect: allow 'envoy_cluster_json' escape hatch to continue to function (#6378)	5 years ago
R.B. Boyer	7a6faccf2f	docs: document how envoy escape hatches work with the discovery chain (#6350) ... - Bootstrap escape hatches are OK. - Public listener/cluster escape hatches are OK. - Upstream listener/cluster escape hatches are not supported. If an unsupported escape hatch is configured and the discovery chain is activated log a warning and act like it was not configured. Fixes #6160	5 years ago
R.B. Boyer	561b2fe606	connect: generate the full SNI names for discovery targets in the compiler rather than in the xds package (#6340)	5 years ago
R.B. Boyer	ae79cdab1b	connect: introduce ExternalSNI field on service-defaults (#6324) ... Compiling this will set an optional SNI field on each DiscoveryTarget. When set this value should be used for TLS connections to the instances of the target. If not set the default should be used. Setting ExternalSNI will disable mesh gateway use for that target. It also disables several service-resolver features that do not make sense for an external service.	5 years ago
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.	5 years ago
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).	5 years ago
R.B. Boyer	c395affc93	connect: expose an API endpoint to compile the discovery chain (#6248) ... In addition to exposing compilation over the API cleaned up the structures that would be exchanged to be cleaner and easier to support and understand. Also removed ability to configure the envoy OverprovisioningFactor.	5 years ago
R.B. Boyer	f02924fafe	connect: simplify the compiled discovery chain data structures (#6242) ... This should make them better for sending over RPC or the API. Instead of a chain implemented explicitly like a linked list (nodes holding pointers to other nodes) instead switch to a flat map of named nodes with nodes linking other other nodes by name. The shipped structure is just a map and a string to indicate which key to start from. Other changes: * inline the compiler option InferDefaults as true * introduce compiled target config to avoid needing to send back additional maps of Resolvers; future target-specific compiled state can go here * move compiled MeshGateway out of the Resolver and into the TargetConfig where it makes more sense.	5 years ago
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	5 years ago
Matt Keeler	fcc18c1675	Fix prepared query upstream endpoint generation (#6236) ... Use the correct SNI value for prepared query upstreams	5 years ago
R.B. Boyer	ad9e7b6ae9	connect: allow L7 routers to match on http methods (#6164) ... Fixes #6158	5 years ago
R.B. Boyer	85cf2706e6	connect: change router syntax for matching query parameters to resemble the syntax for matching paths and headers for consistency. (#6163) ... This is a breaking change, but only in the context of the beta series.	5 years ago
R.B. Boyer	1dbd92e091	connect: validate and test more of the L7 config entries (#6156)	5 years ago
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	5 years ago
hashicorp-ci	a4431da1cc	Merge Consul OSS branch 'master' at commit ef257b084d	5 years ago
Christian Muehlhaeuser	16193665ca	Fixed a few tautological condition mistakes (#6177) ... None of these changes should have any side-effects. They're merely fixing tautological mistakes.	5 years ago
R.B. Boyer	d7a5158805	xds: allow http match criteria to be applied to routes on services using grpc protocols (#6149)	5 years ago
R.B. Boyer	bcd2de3a2e	implement some missing service-router features and add more xDS testing (#6065) ... - also implement OnlyPassing filters for non-gateway clusters	5 years ago
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	5 years ago
Michael Schurter	b5aab27c21	connect: allow overriding envoy listener bind_address (#6033) ... * connect: allow overriding envoy listener bind_address * Update agent/xds/config.go Co-Authored-By: Kyle Havlovitz <kylehav@gmail.com> * connect: allow overriding envoy listener bind_port * envoy: support unix sockets for grpc in bootstrap Add AgentSocket BootstrapTplArgs which if set overrides the AgentAddress and AgentPort to generate a bootstrap which points Envoy to a unix socket file instead of an ip:port. * Add a test for passing the consul addr as a unix socket * Fix config formatting for envoy bootstrap tests * Fix listeners test cases for bind addr/port * Update website/source/docs/connect/proxies/envoy.md	5 years ago
Matt Keeler	62ad0294d4	Don't use WatchedDatacenters in the xds code as thsoe get nil'ed out prior to sending to xds	5 years ago
Matt Keeler	25f580bcaa	Fix a bunch of xds flaky tests ... The clusters/endpoints test were still relying on deterministic ordering of clusters/endpoints which cannot be relied upon due to golang purposefully not providing any guarantee about consistent interation ordering of maps. Also fixed a small bug in the connect proxy cluster generation that was causing the clusters slice to be double the size it needed to with the first half being all nil pointers.	5 years ago
Matt Keeler	a8e2e866e3	Update xds/proxycfg tests to use the same looking trust domain as a normal system ... This is to prevent confusion about what our SNI fields actually look like.	5 years ago
Matt Keeler	a7421c160f	Implement mesh gateway management of service subsets ... Fixup some error handling	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
R.B. Boyer	38d76c624e	Allow for both snake_case and CamelCase for config entries written with 'consul config write'. (#6044) ... This also has the added benefit of fixing an issue with passing time.Duration fields through config entries.	5 years ago
Matt Keeler	813e009a2d	Prepare for having different service kinds that are all generic… (#6013) ... Default to internal error when service kind is unknown	6 years ago
Paul Banks	ffcfdf29fc	Upgrade xDS (go-control-plane) API to support Envoy 1.10. (#5872) ... * Upgrade xDS (go-control-plane) API to support Envoy 1.10. This includes backwards compatibility shim to work around the ext_authz package rename in 1.10. It also adds integration test support in CI for 1.10.0. * Fix go vet complaints * go mod vendor * Update Envoy version info in docs * Update website/source/docs/connect/proxies/envoy.md	6 years ago
Matt Keeler	2ba6c3ac00	Update links to envoy docs on xDS protocol (#5871)	6 years ago
Paul Banks	421ecd32fc	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	6 years ago
Paul Banks	89fa5ec3ba	Connect: Fix Envoy getting stuck during load (#5499) ... * Connect: Fix Envoy getting stuck during load Also in this PR: - Enabled outlier detection on upstreams which will mark instances unhealthy after 5 failures (using Envoy's defaults) - Enable weighted load balancing where DNS weights are configured * Fix empty load assignments in the right place * Fix import names from review * Move millisecond parse to a helper function	6 years ago
R.B. Boyer	f4a3b9d518	fix typos reported by golangci-lint:misspell (#5434)	6 years ago
Nicholas Jackson	99fe9dabce	Envoy config cluster (#5308) ... * Start adding tests for cluster override * Refactor tests for clusters * Passing tests for custom upstream cluster override * Added capability to customise local app cluster * Rename config for local cluster override	6 years ago
R.B. Boyer	d3eb781384	Check ACLs more often for xDS endpoints. ... For established xDS gRPC streams recheck ACLs for each DiscoveryRequest or DiscoveryResponse. If more than 5 minutes has elapsed since the last ACL check, recheck even without an incoming DiscoveryRequest or DiscoveryResponse. ACL failures will terminate the stream.	6 years ago
R.B. Boyer	2dea3e2bd7	Fix some test typos.	6 years ago
Matt Keeler	18b29c45c4	New ACLs (#4791) ... This PR is almost a complete rewrite of the ACL system within Consul. It brings the features more in line with other HashiCorp products. Obviously there is quite a bit left to do here but most of it is related docs, testing and finishing the last few commands in the CLI. I will update the PR description and check off the todos as I finish them over the next few days/week. Description At a high level this PR is mainly to split ACL tokens from Policies and to split the concepts of Authorization from Identities. A lot of this PR is mostly just to support CRUD operations on ACLTokens and ACLPolicies. These in and of themselves are not particularly interesting. The bigger conceptual changes are in how tokens get resolved, how backwards compatibility is handled and the separation of policy from identity which could lead the way to allowing for alternative identity providers. On the surface and with a new cluster the ACL system will look very similar to that of Nomads. Both have tokens and policies. Both have local tokens. The ACL management APIs for both are very similar. I even ripped off Nomad's ACL bootstrap resetting procedure. There are a few key differences though. Nomad requires token and policy replication where Consul only requires policy replication with token replication being opt-in. In Consul local tokens only work with token replication being enabled though. All policies in Nomad are globally applicable. In Consul all policies are stored and replicated globally but can be scoped to a subset of the datacenters. This allows for more granular access management. Unlike Nomad, Consul has legacy baggage in the form of the original ACL system. The ramifications of this are: A server running the new system must still support other clients using the legacy system. A client running the new system must be able to use the legacy RPCs when the servers in its datacenter are running the legacy system. The primary ACL DC's servers running in legacy mode needs to be a gate that keeps everything else in the entire multi-DC cluster running in legacy mode. So not only does this PR implement the new ACL system but has a legacy mode built in for when the cluster isn't ready for new ACLs. Also detecting that new ACLs can be used is automatic and requires no configuration on the part of administrators. This process is detailed more in the "Transitioning from Legacy to New ACL Mode" section below.	6 years ago
Paul Banks	c9217c958e	merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in	6 years ago
Paul Banks	dca1303d05	Connect Envoy Command (#4735) ... * Plumb xDS server and proxyxfg into the agent startup * Add `consul connect envoy` command to allow running Envoy as a connect sidecar. * Add test for help tabs; typos and style fixups from review	6 years ago
Paul Banks	1909a95118	xDS Server Implementation (#4731) ... * Vendor updates for gRPC and xDS server * xDS server implementation for serving Envoy as a Connect proxy * Address initial review comments * consistent envoy package aliases; typos fixed; override TLS and authz for custom listeners * Moar Typos * Moar typos	6 years ago