289 Commits (1.6.2)

Author	SHA1	Message	Date
Daniel Nephin	329d76fd0e	Remove SnapshotRPC passthrough ... The caller has access to the delegate, so we do not gain anything by wrapping the call in Agent.	5 years ago
Pierre Souchay	2a8bf45e38	agent: show warning when enable_script_checks is enabled without safty net (#7437) ... In order to enforce a bit security on Consul agents, add a new method in agent to highlight possible security issues. This does not return an error for now, but might in the future. For now, it detects issues such as: https://www.hashicorp.com/blog/protecting-consul-from-rce-risk-in-specific-configurations/ This would display this kind of messages: ``` 2020-03-11T18:27:49.873+0100 [ERROR] agent: [SECURITY] issue: error="using enable-script-checks without ACLs and without allow_write_http_from is DANGEROUS, use enable-local-script-checks instead see https://www.hashicorp.com/blog/protecting-consul-from-rce-risk-in-specific-configurations/" ```	5 years ago
Andy Lindeman	fb0a990e4d	agent: rewrite checks with proxy address, not local service address (#7518) ... Exposing checks is supposed to allow a Consul agent bound to a different IP address (e.g., in a different Kubernetes pod) to access healthchecks through the proxy while the underlying service binds to localhost. This is an important security feature that makes sure no external traffic reaches the service except through the proxy. However, as far as I can tell, this is subtly broken in the case where the Consul agent cannot reach the proxy over localhost. If a proxy is configured with: `{ LocalServiceAddress: "127.0.0.1", Checks: true }`, as is typical with a sidecar proxy, the Consul checks are currently rewritten to `127.0.0.1:<random port>`. A Consul agent that does not share the loopback address cannot reach this address. Just to make sure I was not misunderstanding, I tried configuring the proxy with `{ LocalServiceAddress: "<pod ip>", Checks: true }`. In this case, while the checks are rewritten as expected and the agent can reach the dynamic port, the proxy can no longer reach its backend because the traffic is no longer on the loopback interface. I think rewriting the checks to use `proxy.Address`, the proxy's own address, is more correct in this case. That is the IP where the proxy can be reached, both by other proxies and by a Consul agent running on a different IP. The local service address should continue to use `127.0.0.1` in most cases.	5 years ago
Shaker Islam	ac309d55f4	docs: document exported functions in agent.go (closes #7101) (#7366) ... and fix one linter error	5 years ago
Daniel Nephin	231c99f7b4	Document Agent.LogOutput	5 years ago
Daniel Nephin	bb8833a2d5	agent: Remove unused Encrypted from interface ... It appears to be unused. It looks like it has been around a while, I geuss at some point we stopped using this method.	5 years ago
Daniel Nephin	266bdf7465	agent: Remove xdsServer field ... The field is only referenced from a single method, it can be a local var	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
Pierre Souchay	864f7efffa	agent: configuration reload preserves check's statuses for services (#7345) ... This fixes issue #7318 Between versions 1.5.2 and 1.5.3, a regression has been introduced regarding health of services. A patch #6144 had been issued for HealthChecks of nodes, but not for healthchecks of services. What happened when a reload was: 1. save all healthcheck statuses 2. cleanup everything 3. add new services with healthchecks In step 3, the state of healthchecks was taken into account locally, so at step 3, but since we cleaned up at step 2, state was lost. This PR introduces the snap parameter, so step 3 can use information from step 1	5 years ago
Hans Hasselberg	315d57bfb1	agent: sensible keyring error (#7272) ... Fixes #7231. Before an agent would always emit a warning when there is an encrypt key in the configuration and an existing keyring stored, which is happening on restart. Now it only emits that warning when the encrypt key from the configuration is not part of the keyring.	5 years ago
Akshay Ganeshen	8beb716414	feat: support sending body in HTTP checks (#6602)	5 years ago
Freddy	cb77fc6d01	Add managed service provider token (#7218) ... Stubs for enterprise-only ACL token to be used by managed service providers.	5 years ago
Hans Hasselberg	5531678e9e	Security fixes (#7182) ... * Mitigate HTTP/RPC Services Allow Unbounded Resource Usage Fixes #7159. Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com> Co-authored-by: Paul Banks <banks@banksco.de>	5 years ago
R.B. Boyer	d78b5008ce	various tweaks on top of the hclog work (#7165)	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
Kit Patella	0d336edb65	Add accessorID of token when ops are denied by ACL system (#7117) ... * agent: add and edit doc comments * agent: add ACL token accessorID to debugging traces * agent: polish acl debugging * agent: minor fix + string fmt over value interp * agent: undo export & fix logging field names * agent: remove note and migrate up to code review * Update agent/consul/acl.go Co-Authored-By: Matt Keeler <mkeeler@users.noreply.github.com> * agent: incorporate review feedback * Update agent/acl.go Co-Authored-By: R.B. Boyer <public@richardboyer.net> Co-authored-by: Matt Keeler <mkeeler@users.noreply.github.com> Co-authored-by: R.B. Boyer <public@richardboyer.net>	5 years ago
Matt Keeler	c09693e545	Updates to Config Entries and Connect for Namespaces (#7116)	5 years ago
Hans Hasselberg	11a571de95	agent: setup grpc server with auto_encrypt certs and add -https-port (#7086) ... * setup grpc server with TLS config used across consul. * add -https-port flag	5 years ago
Aestek	8fc736038a	agent: remove service sidecars in Agent.cleanupRegistration (#7022) ... Sidecar proxies were left behind when cleaning up after an unsuccessful registration. There are now also removed when the service is cleanup up.	5 years ago
Hans Hasselberg	87f32c8ba6	auto_encrypt: set dns and ip san for k8s and provide configuration (#6944) ... * Add CreateCSRWithSAN * Use CreateCSRWithSAN in auto_encrypt and cache * Copy DNSNames and IPAddresses to cert * Verify auto_encrypt.sign returns cert with SAN * provide configuration options for auto_encrypt dnssan and ipsan * rename CreateCSRWithSAN to CreateCSR	5 years ago
Aestek	ba8fd8296f	Add support for dual stack IPv4/IPv6 network (#6640) ... * Use consts for well known tagged adress keys * Add ipv4 and ipv6 tagged addresses for node lan and wan * Add ipv4 and ipv6 tagged addresses for service lan and wan * Use IPv4 and IPv6 address in DNS	5 years ago
Matej Urbas	ce023359fe	agent: configurable MaxQueryTime and DefaultQueryTime. (#3777)	5 years ago
Matt Keeler	a78f7d7a34	OSS changes for implementing token based namespace inferencing ... remove debug log	5 years ago
Matt Keeler	5934f803bf	Sync of OSS changes to support namespaces (#6909)	5 years ago
Hans Hasselberg	2ad0831b34	agent: fewer file local differences between enterprise and oss (#6820) (#6898) ... * Increase number to test ignore. Consul Enterprise has more flags and since we are trying to reduce the differences between both code bases, we are increasing the number in oss. The semantics don't change, it is just a cosmetic thing. * Introduce agent.initEnterprise for enterprise related hooks. * Sync test with ent version. * Fix import order. * revert error wording.	5 years ago
Sarah Adams	aed5cb7669	give feedback to CLI user on forceleave command if node does not exist (#6841)	5 years ago
Matt Keeler	8f1f15a827	Track the correct check id for idempotent service/check updates	5 years ago
Sarah Christoff	5e1c6e907b	Set MinQuorum variable in Autopilot (#6654) ... * Add MinQuorum to Autopilot	5 years ago
Freddy	60f6ec0c2f	Store check type in catalog (#6561)	5 years ago
PHBourquin	039615641e	Checks to passing/critical only after reaching a consecutive success/failure threshold (#5739) ... A check may be set to become passing/critical only if a specified number of successive checks return passing/critical in a row. Status will stay identical as before until the threshold is reached. This feature is available for HTTP, TCP, gRPC, Docker & Monitor checks.	5 years ago
Sarah Christoff	5e26971864	Prune Unhealthy Agents (#6571) ... * Add -prune flag to ForceLeave	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	5882e21b2b	agent: tolerate more failure scenarios during service registration with central config enabled (#6472) ... Also: * Finished threading replaceExistingChecks setting (from GH-4905) through service manager. * Respected the original configSource value that was used to register a service or a check when restoring persisted data. * Run several existing tests with and without central config enabled (not exhaustive yet). * Switch to ioutil.ReadFile for all types of agent persistence.	5 years ago
Aestek	7c7b7f24fd	Add option to register services and their checks idempotently (#4905)	5 years ago
Alvin Huang	c516fabfac	revert commits on master (#6413)	5 years ago
tradel	a4312d2e6e	add domain and nodeName to agent cert request	5 years ago
R.B. Boyer	91da908d2f	test: fix TestAgent.Start() to not segfault if the DNSServer cannot ListenAndServe (#6409) ... The embedded `Server` field on a `DNSServer` is only set inside of the `ListenAndServe` method. If that method fails for reasons like the address being in use and is not bindable, then the `Server` field will not be set and the overall `Agent.Start()` will fail. This will trigger the inner loop of `TestAgent.Start()` to invoke `ShutdownEndpoints` which will attempt to pretty print the DNS servers using fields on that inner `Server` field. Because it was never set, this causes a nil pointer dereference and crashes the test.	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
Alvin Huang	ef6b80bab2	resolve circleci config conflicts	5 years ago
Paul Banks	f38da47c55	Allow raft TrailingLogs to be configured. (#6186) ... This fixes pathological cases where the write throughput and snapshot size are both so large that more than 10k log entries are written in the time it takes to restore the snapshot from disk. In this case followers that restart can never catch up with leader replication again and enter a loop of constantly downloading a full snapshot and restoring it only to find that snapshot is already out of date and the leader has truncated its logs so a new snapshot is sent etc. In general if you need to adjust this, you are probably abusing Consul for purposes outside its design envelope and should reconsider your usage to reduce data size and/or write volume.	5 years ago
Alvin Huang	6f1953d96d	Merge branch 'master' into release/1-6	5 years ago
R.B. Boyer	b16d7f00bc	agent: avoid reverting any check updates that occur while a service is being added or the config is reloaded (#6144)	5 years ago
Matt Keeler	3b6d5e382a	Implement caching for config entry lists ... Update agent/cache-types/config_entry.go Co-Authored-By: R.B. Boyer <public@richardboyer.net>	5 years ago
R.B. Boyer	4bdb690a25	activate most discovery chain features in xDS for envoy (#6024)	5 years ago
Matt Keeler	3943e38133	Implement Kind based ServiceDump and caching of the ServiceDump RPC	5 years ago
hashicorp-ci	43bda6fb76	Merge Consul OSS branch 'master' at commit e91f73f592	5 years ago
Hans Hasselberg	33a7df3330	tls: auto_encrypt enables automatic RPC cert provisioning for consul clients (#5597)	6 years ago
hashicorp-ci	f4304e2e5b	Merge Consul OSS branch 'master' at commit 4eb73973b6	6 years ago
Pierre Souchay	0e907f5aa8	Support for maximum size for Output of checks (#5233) ... * Support for maximum size for Output of checks This PR allows users to limit the size of output produced by checks at the agent and check level. When set at the agent level, it will limit the output for all checks monitored by the agent. When set at the check level, it can override the agent max for a specific check but only if it is lower than the agent max. Default value is 4k, and input must be at least 1.	6 years ago
hashicorp-ci	4d185baf55	Merge Consul OSS branch 'master' at commit 88b15d84f9 ... skip-checks: true	6 years ago