open-nomad/CHANGELOG.md

## 0.3.0 (UNRELEASED)

__BACKWARDS INCOMPATIBILITIES:__
  * Any users of the runtime environment variable `$NOMAD_PORT_` will need to
    update to the new `$NOMAD_ADDR_` varriable [GH-704]
  * Service names that include periods will fail validation. To fix, remove any
    periods from the service name before running the job [GH-770]
  * Task resources are now validated and enforce minimum resources. If a job
    specifies resources below the minimum they will need to be updated [GH-739]
  * Node ID is no longer specifiable. For users who have set a custom Node
    ID, the node should be drained before Nomad is updated and the data_dir
    should be deleted before starting for the first time [GH-675]
  * Users of custom restart policies should update to the new syntax which adds
    a `mode` field. The `mode` can be either `fail` or `delay`. The default for
    `batch` and `service` jobs is `fail` and `delay` respectively [GH-594]
  * All jobs that interpret variables in constraints or driver configurations
    will need to be updated to the new syntax which wraps the interpreted
    variable in curly braces. ($node.class becomes ${node.class}) [GH-760]
  * All users who have multiple servers need to upgrade non-leaders first before
    upgrading their leader server. Alternatively, all servers could be shutdown,
    upgraded and brought back up. This upgrade path is necessary because Raft
    logs are now LZW compressed and all followers must know how to handle the
    new format [GH-826]

IMPROVEMENTS:
  * core: Populate job status [GH-663]
  * core: Cgroup fingerprinter [GH-712]
  * core: Node class constraint [GH-618]
  * core: User specifiable kill timeout [GH-624]
  * core: Job queueing via blocked evaluations  [GH-726]
  * core: Only reschedule failed batch allocations [GH-746]
  * core: Add available nodes by DC to AllocMetrics [GH-619]
  * core: Improve scheduler retry logic under contention [GH-787]
  * core: Computed node class and stack optimization [GH-691, GH-708]
  * core: Improved restart policy with more user configuration [GH-594]
  * core: Periodic specification for jobs [GH-540, GH-657, GH-659, GH-668]
  * core: Batch jobs are garbage collected from the Nomad Servers [GH-586]
  * core: Free half the CPUs on leader node for use in plan queue and evaluation
    broker [GH-812]
  * core: Seed random number generator used to randomize node traversal order
    during scheduling [GH-808]
  * core/api: System garbage collection endpoint [GH-828]
  * core/api: Allow users to set arbitrary headers via agent config [GH-699]
  * core/cli: Prefix based lookups of allocs/nodes/evals/jobs [GH-575]
  * core/cli: Print short identifiers and UX cleanup [GH-675, GH-693, GH-692]
  * core/client: Client pulls minimum set of required allocations [GH-731]
  * cli: Output of agent-info is sorted [GH-617]
  * cli: Eval monitor detects zero wait condition [GH-776]
  * cli: Ability to navigate allocation directories [GH-709, GH-798]
  * client: Log rotation for all drivers [GH-685, GH-763]
  * client: Create a tmp/ directory inside each task directory [GH-757]
  * client: Store when an allocation was received by the client [GH-821]
  * client: Heartbeating and saving state resilient under high load [GH-811]
  * client: Handle updates to tasks Restart Policy and KillTimeout [GH-751]
  * client: Killing a driver handle is retried with an exponential backoff
    [GH-809]
  * client: Send Node to server when periodic fingerprinters change Node
    attributes/metadata [GH-749]
  * client/api: File-system access to allocation directories [GH-669]
  * drivers: Interpret Nomad variables in environment variables/args [GH-653]
  * driver/rkt: Add support for CPU/Memory isolation [GH-610]
  * driver/rkt: Add support for mounting alloc/task directory [GH-645]
  * driver/docker: Support for .dockercfg based auth for private registries
    [GH-773]

BUG FIXES:
  * core: Node drain could only be partially applied [GH-750]
  * core: Fix panic when eval Ack occurs at delivery limit [GH-790]
  * cli: Handle parsing of un-named ports [GH-604]
  * cli: Enforce absolute paths for data directories [GH-622]
  * client: Cleanup of the allocation directory [GH-755]
  * client: Improved stability under high contention [GH-789]
  * client: Handle non-200 codes when parsing AWS metadata [GH-614]
  * client: Unmounted of shared alloc dir when client is rebooted [GH-755]
  * client/consul: Service name changes handled properly [GH-766]
  * driver/rkt: handle broader format of rkt version outputs [GH-745]
  * driver/qemu: failed to load image and kvm accelerator fixes [GH-656]

## 0.2.3 (December 17, 2015)

BUG FIXES:
  * core: Task States not being properly updated [GH-600]
  * client: Fixes for user lookup to support CoreOS [GH-591]
  * discovery: Using a random prefix for nomad managed services [GH-579]
  * discovery: De-Registering Tasks while Nomad sleeps before failed tasks are
    restarted.
  * discovery: Fixes for service registration when multiple allocations are bin
    packed on a node [GH-583]
  * configuration: Sort configuration files [GH-588]
  * cli: RetryInterval was not being applied properly [GH-601]

## 0.2.2 (December 11, 2015)

IMPROVEMENTS:
  * core: Enable `raw_exec` driver in dev mode [GH-558]
  * cli: Server join/retry-join command line and config options [GH-527]
  * cli: Nomad reports which config files are loaded at start time, or if none
    are loaded [GH-536], [GH-553]

BUG FIXES:
  * core: Send syslog to `LOCAL0` by default as previously documented [GH-547]
  * client: remove all calls to default logger [GH-570]
  * consul: Nomad is less noisy when Consul is not running [GH-567]
  * consul: Nomad only deregisters services that it created [GH-568]
  * driver/exec: Shutdown a task now sends the interrupt signal first to the
    process before forcefully killing it. [GH-543]
  * driver/docker: Docker driver no longer leaks unix domain socket connections
    [GH-556]
  * fingerprint/network: Now correctly detects interfaces on Windows [GH-382]

## 0.2.1 (November 28, 2015)

IMPROVEMENTS:

  * core: Can specify a whitelist for activating drivers [GH-467]
  * core: Can specify a whitelist for activating fingerprinters [GH-488]
  * core/api: Can list all known regions in the cluster [GH-495]
  * client/spawn: spawn package tests made portable (work on Windows) [GH-442]
  * client/executor: executor package tests made portable (work on Windows) [GH-497]
  * client/driver: driver package tests made portable (work on windows) [GH-502]
  * client/discovery: Added more consul client api configuration options [GH-503]
  * driver/docker: Added TLS client options to the config file [GH-480]
  * jobspec: More flexibility in naming Services [GH-509]

BUG FIXES:

  * core: Shared reference to DynamicPorts caused port conflicts when scheduling
    count > 1 [GH-494]
  * client/restart policy: Not restarting Batch Jobs if the exit code is 0 [GH-491]
  * client/service discovery: Make Service IDs unique [GH-479]
  * client/service: Fixes update to check definitions and services which are already registered [GH-498]
  * driver/docker: Expose the container port instead of the host port [GH-466]
  * driver/docker: Support `port_map` for static ports [GH-476]
  * driver/docker: Pass 0.2.0-style port environment variables to the docker container [GH-476]
  * jobspec: distinct_hosts constraint can be specified as a boolean (previously panicked) [GH-501]

## 0.2.0 (November 18, 2015)

__BACKWARDS INCOMPATIBILITIES:__

  * core: HTTP API `/v1/node/<id>/allocations` returns full Allocation and not
    stub [GH-402]
  * core: Removed weight and hard/soft fields in constraints [GH-351]
  * drivers: Qemu and Java driver configurations have been updated to both use
    `artifact_source` as the source for external images/jars to be ran
  * jobspec: New reserved and dynamic port specification [GH-415]
  * jobspec/drivers: Driver configuration supports arbitrary struct to be
    passed in jobspec [GH-415]

FEATURES:

  * core: Blocking queries supported in API [GH-366]
  * core: System Scheduler that runs tasks on every node [GH-287]
  * core: Regexp, version and lexical ordering constraints [GH-271]
  * core: distinctHost constraint ensures Task Groups are running on distinct
    clients [GH-321]
  * core: Service block definition with Consul registration [GH-463, GH-460,
    GH-458, GH-455, GH-446, GH-425]
  * client: GCE Fingerprinting [GH-215]
  * client: Restart policy for task groups enforced by the client [GH-369,
    GH-393]
  * driver/rawexec: Raw Fork/Exec Driver [GH-237]
  * driver/rkt: Experimental Rkt Driver [GH-165, GH-247]
  * drivers: Add support for downloading external artifacts to execute for
    Exec, Raw exec drivers [GH-381]

IMPROVEMENTS:

  * core: Configurable Node GC threshold [GH-362]
  * core: Overlap plan verification and plan application for increased
    throughput [GH-272]
  * cli: Output of `alloc-status` also displays task state [GH-424]
  * cli: Output of `server-members` is sorted [GH-323]
  * cli: Show node attributes in `node-status` [GH-313]
  * client/fingerprint: Network fingerprinter detects interface suitable for
    use, rather than defaulting to eth0 [GH-334, GH-356]
  * client: Client Restore State properly reattaches to tasks and recreates
    them as needed [GH-364, GH-380, GH-388, GH-392, GH-394, GH-397, GH-408]
  * client: Periodic Fingerprinting [GH-391]
  * client: Precise snapshotting of TaskRunner and AllocRunner [GH-403, GH-411]
  * client: Task State is tracked by client [GH-416]
  * client: Test Skip Detection [GH-221]
  * driver/docker: Can now specify auth for docker pull [GH-390]
  * driver/docker: Can now specify DNS and DNSSearch options [GH-390]
  * driver/docker: Can now specify the container's hostname [GH-426]
  * driver/docker: Containers now have names based on the task name. [GH-389]
  * driver/docker: Mount task local and alloc directory to docker containers [GH-290]
  * driver/docker: Now accepts any value for `network_mode` to support userspace networking plugins in docker 1.9
  * driver/java: Pass JVM options in java driver [GH-293, GH-297]
  * drivers: Use BlkioWeight rather than BlkioThrottleReadIopsDevice [GH-222]
  * jobspec and drivers: Driver configuration supports arbitrary struct to be passed in jobspec [GH-415]

BUG FIXES:

  * core: Nomad Client/Server RPC codec encodes strings properly [GH-420]
  * core: Reset Nack timer in response to scheduler operations [GH-325]
  * core: Scheduler checks for updates to environment variables [GH-327]
  * cli: Fix crash when -config was given a directory or empty path [GH-119]
  * client/fingerprint: Use correct local interface on OS X [GH-361, GH-365]
  * client: Nomad Client doesn't restart failed containers [GH-198]
  * client: Reap spawn-daemon process, avoiding a zombie process [GH-240]
  * client: Resource exhausted errors because of link-speed zero [GH-146,
    GH-205]
  * client: Restarting Nomad Client leads to orphaned containers [GH-159]
  * driver/docker: Apply SELinux label for mounting directories in docker
    [GH-377]
  * driver/docker: Docker driver exposes ports when creating container [GH-212,
    GH-412]
  * driver/docker: Docker driver uses docker environment variables correctly
    [GH-407]
  * driver/qemu: Qemu fingerprint and tests work on both windows/linux [GH-352]

## 0.1.2 (October 6, 2015)

IMPROVEMENTS:

  * client: Nomad client cleans allocations on exit when in dev mode [GH-214]
  * drivers: Use go-getter for artifact retrieval, add artifact support to
    Exec, Raw Exec drivers [GH-288]

## 0.1.1 (October 5, 2015)

IMPROVEMENTS:

  * cli: Nomad Client configurable from command-line [GH-191]
  * client/fingerprint: Native IP detection and user specifiable network
    interface for fingerprinting [GH-189]
  * driver/docker: Docker networking mode is configurable [GH-184]
  * drivers: Set task environment variables [GH-206]

BUG FIXES:

  * client/fingerprint: Network fingerprinting failed if default network
    interface did not exist [GH-189]
  * client: Fixed issue where network resources throughput would be set to 0
    MBits if the link speed could not be determined [GH-205]
  * client: Improved detection of Nomad binary [GH-181]
  * driver/docker: Docker dynamic port mapping were not being set properly
    [GH-199]

## 0.1.0 (September 28, 2015)

  * Initial release