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open-consul/CHANGELOG.md

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0.6.0 (Unreleased)

FEATURES:

  • Service ACL's apply to service discovery [GH-1024]

BUG FIXES:

  • Allow services with / characters in the UI [GH-988]
  • Token hiding in HTTP logs bug fixed [GH-1020]
  • RFC6598 addresses are accepted as private IP's [GH-1050]
  • Tokens passed from the CLI or API work for maint mode [GH-1230]

IMPROVEMENTS:

  • Advertised gossip/rpc addresses can now be configured [GH-1004]
  • Atlas integration options are reload-able via SIGHUP [GH-1199]
  • Atlas endpoint is a configurable option and CLI arg [GH-1201]

MISC:

  • Vagrantfile fixed for VMware [GH-1042]

0.5.2 (May 18, 2015)

FEATURES:

  • Include datacenter in the members output
  • HTTP Health Check sets user agent "Consul Health Check" [GH-951]

BUG FIXES:

  • Fixed memory leak caused by blocking query [GH-939]

MISC:

  • Remove unused constant [GH-941]

0.5.1 (May 13, 2015)

FEATURES:

  • Ability to configure minimum session TTL. [GH-821]
  • Ability to set the initial state of a health check when registering [GH-859]
  • New configtest sub-command to verify config validity [GH-904]
  • ACL enforcement is prefix based for service names [GH-905]
  • ACLs support upsert for simpler restore and external generation [GH-909]
  • ACL tokens can be provided per-service during registration [GH-891]
  • Support for distinct LAN and WAN advertise addresses [GH-816]
  • Migrating Raft log from LMDB to BoltDB [GH-857]
  • session_ttl_min is now configurable to reduce the minimum TTL [GH-821]
  • Adding verify_server_hostname to protect against server forging [GH-927]

BUG FIXES:

  • Datacenter is lowercased, fixes DNS lookups [GH-761]
  • Deregister all checks when service is deregistered [GH-918]
  • Fixing issues with updates of persisted services [GH-910]
  • Chained CNAME resolution fixes [GH-862]
  • Tokens are filtered out of log messages [GH-860]
  • Fixing anti-entropy issue if servers rollback Raft log [GH-850]
  • Datacenter name is case insensitive for DNS lookups
  • Queries for invalid datacenters do not leak sockets [GH-807]

IMPROVEMENTS:

  • HTTP health checks more reliable, avoid KeepAlives [GH-824]
  • Improved protection against a passive cluster merge
  • SIGTERM is properly handled for graceful shutdown [GH-827]
  • Better staggering of deferred updates to checks [GH-884]
  • Configurable stats prefix [GH-902]
  • Raft uses BoltDB as the backend store. [GH-857]
  • API RenewPeriodic more resilient to transient errors [GH-912]

0.5.0 (February 19, 2015)

FEATURES:

  • Key rotation support for gossip layer. This allows the encrypt key to be changed globally. See "keyring" command. [GH-336]
  • Options to join the WAN pool on start (start_join_wan, retry_join_wan) [GH-477]
  • Optional HTTPS interface [GH-478]
  • Ephemeral keys via "delete" session behavior. This allows keys to be deleted when a session is invalidated instead of having the lock released. Adds new "Behavior" field to Session which is configurable. [GH-487]
  • Reverse DNS lookups via PTR for IPv4 and IPv6 [GH-475]
  • API added checks and services are persisted. This means services and checks will survive a crash or restart. [GH-497]
  • ACLs can now protect service registration. Users in blacklist mode should allow registrations before upgrading to prevent a service disruption. [GH-506] [GH-465]
  • Sessions support a heartbeat failure detector via use of TTLs. This adds a new "TTL" field to Sessions and a /v1/session/renew endpoint. Heartbeats act like a failure detector (health check), but are managed by the servers. [GH-524] [GH-172]
  • Support for service specific IP addresses. This allows the service to advertise an address that is different from the agent. [GH-229] [GH-570]
  • Support KV Delete with Check-And-Set [GH-589]
  • Merge armon/consul-api into api as official Go client.
  • Support for distributed locks and semaphores in API client [GH-594] [GH-600]
  • Support for native HTTP health checks [GH-592]
  • Support for node and service maintanence modes [GH-606]
  • Added new "consul maint" command to easily toggle maintanence modes [GH-625]
  • Added new "consul lock" command for simple highly-available deployments. This lets Consul manage the leader election and easily handle N+1 deployments without the applications being Consul aware. [GH-619]
  • Multiple checks can be associated with a service [GH-591] [GH-230]

BUG FIXES:

  • Fixed X-Consul-Index calculation for KV ListKeys
  • Fixed errors under extremely high read parallelism
  • Fixed issue causing event watches to not fire reliably [GH-479]
  • Fixed non-monotonic X-Consul-Index with key deletion [GH-577] [GH-195]
  • Fixed use of default instead of custom TLD in some DNS responses [GH-582]
  • Fixed memory leaks in API client when an error response is returned [GH-608]
  • Fixed issues with graceful leave in single-node bootstrap cluster [GH-621]
  • Fixed issue preventing node reaping [GH-371]
  • Fixed gossip stability at very large scale
  • Fixed string of rpc error: rpc error: ... no known leader. [GH-611]
  • Fixed panic in exec during cancellation
  • Fixed health check state reset caused by SIGHUP [GH-693]
  • Fixed bug in UI when multiple datacenters exist.

IMPROVEMENTS:

  • Support "consul exec" in foreign datacenter [GH-584]
  • Improved K/V blocking query performance [GH-578]
  • CLI respects CONSUL_RPC_ADDR environment variable to load parameter [GH-542]
  • Added support for multiple DNS recursors [GH-448]
  • Added support for defining multiple services per configuration file [GH-433]
  • Added support for defining multiple checks per configuration file [GH-433]
  • Allow mixing of service and check definitions in a configuration file [GH-433]
  • Allow notes for checks in service definition file [GH-449]
  • Random stagger for agent checks to prevent thundering herd [GH-546]
  • More useful metrics are sent to statsd/statsite
  • Added configuration to set custom HTTP headers (CORS) [GH-558]
  • Reject invalid configurations to simplify validation [GH-576]
  • Guard against accidental cluster mixing [GH-580] [GH-260]
  • Added option to filter DNS results on warning [GH-595]
  • Improve write throughput with raft log caching [GH-604]
  • Added ability to bind RPC and HTTP listeners to UNIX sockets [GH-587] [GH-612]
  • K/V HTTP endpoint returns 400 on conflicting flags [GH-634] [GH-432]

MISC:

  • UI confirms before deleting key sub-tree [GH-520]
  • More useful output in "consul version" [GH-480]
  • Many documentation improvements
  • Reduce log messages when quorum member is logs [GH-566]

UPGRADE NOTES:

  • If acl_default_policy is "deny", ensure tokens are updated to enable service registration to avoid a service disruption. The new ACL policy can be submitted with 0.4 before upgrading to 0.5 where it will be enforced.

  • Servers running 0.5.X cannot be mixed with older servers. (Any client version is fine). There is a 15 minute upgrade window where mixed versions are allowed before older servers will panic due to an unsupported internal command. This is due to the new KV tombstones which are internal to servers.

0.4.1 (October 20, 2014)

FEATURES:

  • Adding flags for -retry-join to attempt a join with configurable retry behavior. [GH-395]

BUG FIXES:

  • Fixed ACL token in UI
  • Fixed ACL reloading in UI [GH-323]
  • Fixed long session names in UI [GH-353]
  • Fixed exit code from remote exec [GH-346]
  • Fixing only a single watch being run by an agent [GH-337]
  • Fixing potential race in connection multiplexing
  • Fixing issue with Session ID and ACL ID generation. [GH-391]
  • Fixing multiple headers for /v1/event/list endpoint [GH-361]
  • Fixing graceful leave of leader causing invalid Raft peers [GH-360]
  • Fixing bug with closing TLS connction on error
  • Fixing issue with node reaping [GH-371]
  • Fixing aggressive deadlock time [GH-389]
  • Fixing syslog filter level [GH-272]
  • Serf snapshot compaction works on Windows [GH-332]
  • Raft snapshots work on Windows [GH-265]
  • Consul service entry clean by clients now possible
  • Fixing improper deserialization

IMPROVEMENTS:

  • Use "critical" health state instead of "unknown" [GH-341]
  • Consul service can be targed for exec [GH-344]
  • Provide debug logging for session invalidation [GH-390]
  • Added "Deregister" button to UI [GH-364]
  • Added enable_truncate DNS configuration flag [GH-376]
  • Reduce mmap() size on 32bit systems [GH-265]
  • Temporary state is cleaned after an abort [GH-338] [GH-178]

MISC:

  • Health state "unknown" being deprecated

0.4.0 (September 5, 2014)

FEATURES:

  • Fine-grained ACL system to restrict access to KV store. Clients use tokens which can be restricted to (read, write, deny) permissions using longest-prefix matches.

  • Watch mechanisms added to invoke a handler when data changes in consul. Used with the consul watch command, or by specifying watches in an agent configuration.

  • Event system added to support custom user events. Events are fired using the consul event command. They are handled using a standard watch.

  • Remote execution using consul exec. This allows for command execution on remote instances mediated through Consul.

  • RFC-2782 style DNS lookups supported

  • UI improvements, including support for ACLs.

IMPROVEMENTS:

  • DNS case-insensitivity [GH-189]
  • Support for HTTP ?pretty parameter to pretty format JSON output.
  • Use $SHELL when invoking handlers. [GH-237]
  • Agent takes the -encrypt CLI Flag [GH-245]
  • New statsd_add config for Statsd support. [GH-247]
  • New addresses config for providing an override to client_addr for DNS, HTTP, or RPC endpoints. [GH-301] [GH-253]
  • Support Checkpoint for security bulletins and update announcements.

BUG FIXES:

  • Fixed race condition in -bootstrap-expect [GH-254]
  • Require PUT to /v1/session/destroy [GH-285]
  • Fixed registration race condition [GH-300] [GH-279]

UPGRADE NOTES:

  • ACL support should not be enabled until all server nodes are running Consul 0.4. Mixed server versions with ACL support enabled may result in panics.

0.3.1 (July 21, 2014)

FEATURES:

  • Improved bootstrapping process, thanks to @robxu9

BUG FIXES:

  • Fixed issue with service re-registration [GH-216]
  • Fixed handling of -rejoin flag
  • Restored 0.2 TLS behavior, thanks to @nelhage [GH-233]
  • Fix the statsite flags, thanks to @nelhage [GH-243]
  • Fixed filters on criticial / non-passing checks [GH-241]
  • Fixed initial log compaction crash [GH-297]

IMPROVEMENTS:

  • UI Improvements
  • Improved handling of Serf snapshot data
  • Increase reliability of failure detector
  • More useful logging messages

0.3.0 (June 13, 2014)

FEATURES:

  • Better, faster, cleaner UI [GH-194] [GH-196]
  • Sessions, which act as a binding layer between nodes, checks and KV data. [GH-162]
  • Key locking. KV data integrates with sessions to enable distributed locking. [GH-162]
  • DNS lookups can do stale reads and TTLs. [GH-200]
  • Added new /v1/agent/self endpoint [GH-173]
  • reload command can be used to trigger configuration reload from the CLI [GH-142]

IMPROVEMENTS:

  • members has a much cleaner output format [GH-143]
  • info includes build version information
  • Sorted results for datacneter list [GH-198]
  • Switch multiplexing to yamux
  • Allow multiple CA certis in ca_file [GH-174]
  • Enable logging to syslog. [GH-105]
  • Allow raw key value lookup [GH-150]
  • Log encryption enabled [GH-151]
  • Support -rejoin to rejoin a cluster after a previous leave. [GH-110]
  • Support the "any" wildcard for v1/health/state/ [GH-152]
  • Defer sync of health check output [GH-157]
  • Provide output for serfHealth check [GH-176]
  • Datacenter name is validated [GH-169]
  • Configurable syslog facilities [GH-170]
  • Pipelining replication of writes
  • Raft group commits
  • Increased stability of leader terms
  • Prevent previously left nodes from causing re-elections

BUG FIXES:

  • Fixed memory leak in in-memory stats system
  • Fixing race between RPC and Raft init [GH-160]
  • Server-local RPC is avoids network [GH-148]
  • Fixing builds for older OSX [GH-147]

MISC:

  • Fixed missing prefixes on some log messages
  • Removed the -role filter of members command
  • Lots of docs fixes

0.2.1 (May 20, 2014)

IMPROVEMENTS:

  • Improved the URL formatting for the key/value editor in the Web UI. Importantly, the editor now allows editing keys with dashes in the name. [GH-119]
  • The web UI now has cancel and delete folder actions in the key/value editor. [GH-124], [GH-122]
  • Add flag to agent to write pid to a file. [GH-106]
  • Time out commands if Raft exceeds command enqueue timeout
  • Adding support for the -advertise CLI flag. [GH-156]
  • Fixing potential name conflicts on the WAN gossip ring [GH-158]
  • /v1/catalog/services returns an empty slice instead of null. [GH-145]
  • members command returns exit code 2 if no results. [GH-116]

BUG FIXES:

  • Renaming "separator" to "separator". This is the correct spelling, but both spellings are respected for backwards compatibility. [GH-101]
  • Private IP is properly found on Windows clients.
  • Windows agents won't show "failed to decode" errors on every RPC request.
  • Fixed memory leak with RPC clients. [GH-149]
  • Serf name conflict resoultion disabled. [GH-97]
  • Raft deadlock possibility fixed. [GH-141]

MISC:

  • Updating to latest version of LMDB
  • Reduced the limit of KV entries to 512KB. [GH-123].
  • Warn if any Raft log exceeds 1MB
  • Lots of docs fixes

0.2.0 (May 1, 2014)

FEATURES:

  • Adding Web UI for Consul. This is enabled by providing the -ui-dir flag with the path to the web directory. The UI is visited at the standard HTTP address (Defaults to http://127.0.0.1:8500/). There is a demo available here.
  • Adding new read consistency modes. ?consistent can be used for strongly consistent reads without caveats. ?stale can be used for stale reads to allow for higher throughput and read scalability. [GH-68]
  • /v1/health/service/ endpoint can take an optional ?passing flag to filter to only nodes with passing results. [GH-57]
  • The KV endpoint suports listing keys with the ?keys query parameter, and limited up to a separator using ?separator=.

IMPROVEMENTS:

  • Health check output goes into separate Output field instead of overriding Notes. [GH-59]
  • Adding a minimum check interval to prevent checks with extremely low intervals fork bombing. [GH-64]
  • Raft peer set cleared on leave. [GH-69]
  • Case insensitive parsing checks. [GH-78]
  • Increase limit of DB size and Raft log on 64bit systems. [GH-81]
  • Output of health checks limited to 4K. [GH-83]
  • More warnings if GOMAXPROCS == 1 [GH-87]
  • Added runtime information to consul info

BUG FIXES:

  • Fixed 404 on /v1/agent/service/deregister and /v1/agent/check/deregister. [GH-95]
  • Fixed JSON parsing for /v1/agent/check/register [GH-60]
  • DNS parser can handler period in a tag name. [GH-39]
  • "application/json" content-type is sent on HTTP requests. [GH-45]
  • Work around for LMDB delete issue. [GH-85]
  • Fixed tag gossip propagation for rapid restart. [GH-86]

MISC:

  • More conservative timing values for Raft
  • Provide a warning if attempting to commit a very large Raft entry
  • Improved timeliness of registration when server is in bootstrap mode. [GH-72]

0.1.0 (April 17, 2014)

  • Initial release