consul

Branch: 18831-backport1.14.10

Author	SHA1	Message	Date
Derek Menteer	cf7f24a6ec	Change serf-tag references to field references.	2 years ago
Derek Menteer	0ceec9017b	Expose `grpc_tls` via serf for cluster peering.	2 years ago
Dan Upton	b9e525d689	grpc: rename public/private directories to external/internal (#13721 ) Previously, public referred to gRPC services that are both exposed on the dedicated gRPC port and have their definitions in the proto-public directory (so were considered usable by 3rd parties). Whereas private referred to services on the multiplexed server port that are only usable by agents and other servers. Now, we're splitting these definitions, such that external/internal refers to the port and public/private refers to whether they can be used by 3rd parties. This is necessary because the peering replication API needs to be exposed on the dedicated port, but is not (yet) suitable for use by 3rd parties.	2 years ago
R.B. Boyer	ea58f235f5	server: broadcast the public grpc port using lan serf and update the consul service in the catalog with the same data (#13687 ) Currently servers exchange information about their WAN serf port and RPC port with serf tags, so that they all learn of each other's addressing information. We intend to make larger use of the new public-facing gRPC port exposed on all of the servers, so this PR addresses that by passing around the gRPC port via serf tags and then ensuring the generated consul service in the catalog has metadata about that new port as well for ease of non-serf-based lookup.	2 years ago
R.B. Boyer	eb21649f82	partitions: various refactors to support partitioning the serf LAN pool (#11568 )	3 years ago
Daniel Nephin	3ac910606c	acl: remove reading of serf acl tags We no long need to read the acl serf tag, because servers are always either ACL enabled or ACL disabled. We continue to write the tag so that during an upgarde older servers will see the tag.	3 years ago
Daniel Nephin	d12dd48c61	acl: remove ACL upgrading from Clients As part of removing the legacy ACL system ACL upgrading and the flag for legacy ACLs is removed from Clients. This commit also removes the 'acls' serf tag from client nodes. The tag is only ever read from server nodes. This commit also introduces a constant for the acl serf tag, to make it easier to track where it is used.	3 years ago
Daniel Nephin	ed37a2dbc2	Refactor of serf feature flag tags. This refactor is to make it easier to see how serf feature flags are encoded as serf tags, and where those feature flags are read. - use constants for both the prefix and feature flag name. A constant makes it much easier for an IDE to locate the read and write location. - isolate the feature-flag encoding logic in the metadata package, so that the feature flag prefix can be unexported. Only expose a function for encoding the flags into tags. This logic is now next to the logic which reads the tags. - remove the duplicate `addEnterpriseSerfTags` functions. Both Client and Server structs had the same implementation. And neither implementation needed the method receiver.	4 years ago
Matt Keeler	66fd23d67f	Refactor to call non-voting servers read replicas (#9191 ) Co-authored-by: Kit Patella <kit@jepsen.io>	4 years ago
Daniel Nephin	cb050b280c	ci: enable SA4006 staticcheck check And fix the 'value not used' issues. Many of these are not bugs, but a few are tests not checking errors, and one appears to be a missed error in non-test code.	4 years ago
Daniel Nephin	99eb583ebc	Replace goe/verify.Values with testify/require.Equal (#7993 ) * testing: replace most goe/verify.Values with require.Equal One difference between these two comparisons is that go/verify considers nil slices/maps to be equal to empty slices/maps, where as testify/require does not, and does not appear to provide any way to enable that behaviour. Because of this difference some expected values were changed from empty slices to nil slices, and some calls to verify.Values were left. * Remove github.com/pascaldekloe/goe/verify Reduce the number of assertion packages we use from 2 to 1	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
Matt Keeler	61d8778210	Sync some feature flag support from enterprise (#7167 )	5 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
Alex Dadgar	43d0f96c42	do not bootstrap with non voters	6 years ago
Veselkov Konstantin	8e16bd7d77	fix refactoring	7 years ago
Veselkov Konstantin	7de57ba4de	remove golint warnings	7 years ago
Kyle Havlovitz	144e6e7d31	Remove nonvoter from metadata.Server	7 years ago
James Phillips	1333fa57a1	Skips unique node ID check for old versions of Consul. Fixes #3070.	7 years ago
Kyle Havlovitz	62102a537e	Organize segments for a cleaner split between enterprise and OSS	7 years ago
Kyle Havlovitz	14b027a3c2	Add segment addr field to tags for LAN flood joiner	7 years ago
James Phillips	b1a15e0c3d	Adds open source side of network segments (feature is Enterprise-only).	7 years ago
Frank Schroeder	7cff50a4df	agent: move agent/consul/agent to agent/metadata	7 years ago

23 Commits (18831-backport1.14.10)