consul

Commit Graph

Author	SHA1	Message	Date
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
Mike Morris	66b8c20990	Bump go-discover to support EC2 Metadata Service v2 (#6865 ) Refs https://github.com/hashicorp/go-discover/pull/128 * deps: add replace directive for gocheck Transitive dep, source at https://launchpad.net/gocheck indicates project moved. This also avoids a dependency on bzr when fetching modules. Refs https://github.com/hashicorp/consul/pull/6818 * deps: make update-vendor * test: update retry-join expected names from go-discover	5 years ago
Hans Hasselberg	33a7df3330	tls: auto_encrypt enables automatic RPC cert provisioning for consul clients (#5597 )	5 years ago
Hans Hasselberg	ac45b17482	fix remaining CI failures after Go 1.12.1 Upgrade (#5576 )	6 years ago
Siva Prasad	f4a1c381a5	Vendoring update for go-discover. (#4412 ) * New Providers added and updated vendoring for go-discover * Vendor.json formatted using make vendorfmt * Docs/Agent/auto-join: Added documentation for the new providers introduced in this PR * Updated the golang.org/x/sys/unix in the vendor directory * Agent: TestGoDiscoverRegistration updated to reflect the addition of new providers * Deleted terraform.tfstate from vendor. * Deleted terraform.tfstate.backup Deleted terraform state file artifacts from unknown runs. * Updated x/sys/windows vendor for Windows binary compilation	6 years ago
Seth Vargo	accb85a6a9	Use new discover and useragent libs	7 years ago
Kyle Havlovitz	48560848fc	Move cloud auto-join docs to a separate page and add Triton	7 years ago
Frank Schröder	a052255f86	vendor: update go-discover (#3634 ) * vendor: update go-discover Pull in providers: * Aliyun (Alibaba Cloud) * Digital Ocean * OpenStack (os) * Scaleway * doc: use ... instead of xxx * doc: strip trailing whitespace * doc: add docs for aliyun, digitalocean, os and scaleway * agent: fix test	7 years ago
Frank Schroeder	9ffeba18ee	agent: fix code for updated go-discover signature Closes #3351	7 years ago
Frank Schroeder	2fac427cd4	agent: use github.com/hashicorp/go-discover Replace the provider specific node discovery code with go-discover to support AWS, Azure and GCE. Fixes #3282	7 years ago

11 Commits (95031f9f9045469a1ecee326f1c12319cb62b34e)