Changelog

1.2.4 (2016-06-14)

API

Code refactoring

Test

Fix leader election tests

1.2.3 (2016-05-25)

API

Update engine-api vendoring (supports new functions and signatures)
Fix registry auth bug for image pulls

1.2.2 (2016-05-05)

Cluster management

Fix deadlock that causes Swarm to hang

1.2.1 (2016-05-03)

Scheduler

Add containerslots filter to allow user to limit container number on a node

API

Use engine-api to handle large number of API calls
Update ContainerConfig to embed HostConfig and NetworkingConfig
stop/restart/kill a non-existent container should return 500 rather than 404
Return an error when assertion fails in hijack
Return an error when Image Pull fails
Fix image pull bug (wait until download finishes)
Fix and document some api response status codes
Add NodeID in docker info
Support docker ps --filter by volume

Build

Move dependencies to vendor/
Update Image Pull to use docker/distribution package
Convert docs Dockerfiles to use docs/base:oss

Test

Fix api/ps tests
Update api/stats test to prevent timeout on master branch
Use --cpu-shares instead of -c in integration test

Misc

Documentation clean up
Close http response body to avoid potential memory leak
Switch context.TODO() to context.Background() to enable context setting

1.2.0 (2016-04-13)

Scheduler

Move rescheduling out of experimental
Differentiate constraint errors from affinity errors
Printing unsatisfiable constraints for container scheduling failure
Enable rescheduling on master manager to prevent replica managers from rescheduling containers
Output error when starting a rescheduled container fails, and when removing container fails at node recovery
Validate cluster swarm.overcommit option

API

Introduce engine-api client to Swarm
Implement 'info' and 'version' with engine-api
Use apiClient for some volume, network, image operations
Print engine version in Info
Fix swarm api response status code
Support ps node filter
Fix HostConfig for /start endpoint
Print container 'created' state at ps
Update dockerclient to get labels on volumes, networks, images
Support private images, labels and other new flags in docker build
Select apiClient version according to node docker version

Node management

Prevent crash on channel double close
Manager retries EventMonitoring on failure.
Docker engine updates hostname/domainname
Force inspect for containers in Restarting state.
Increase max thread count to 50k to accommodate large cluster or heavy workload
Force to validate min and max refresh interval to be positive
Skip unstable tests from Docker bug 14203
Fix race condition between node removal from discovery and scheduler
Fix data race with node failureCount
Display warning message if an engine has labels with "node=xxx"

Discovery

Remove parameter which is not used in createDiscovery
Fix Consul leader election failure on multi-server

Mesos integration

Support rescind offer in swarm
Update mesos tests

Misc

Update golang version to 1.5.4
Skip redundant endpoints in "network inspect"
Validate duration flags:--delay, --timeout, --replication-ttl
Fix image matching via id
Make port 0 invalid as listening port
Improve volume inspect test
Add read lock for eventsHandler when only it is necessary

1.1.3 (2016-03-03)

Fix missing HostConfig for rescheduled containers
Fix TCP connections leak
Support docker run --net <node>/<network> ...
Fix CORS issue in the API

1.1.2 (2016-02-18)

Fix regression with Docker Compose

1.1.1 (2016-02-17)

Performance improvements around networking with Docker engine 1.10
Fix reschedule issue regarding events
Implement engine refresh backoff strategy for failing nodes

1.1.0 (2016-02-04)

Scheduler

Add support for container rescheduling on node failure. (experimental)
Use failureCount as a secondary health indicator
Add swarm container create retry option
Fixed the way soft affinities and handled

API

Support private registry on docker run
Expose error and last update time in docker info
Sort images by Created
Fix error when inspect on unhealthy node
Prevent panic in filters when container has no name
Add buildtime, kernelversion and experimental to API version
Support docker update and new networking related flags in run & network create/connect/disconnect/ls
Require --all on docker ps to display containers on unhealthy nodes
Retry on docker events EOF

Node Management

Add a random delay to avoid synchronized registration at swarm join
Use engine connection error to fail engine fast
Introduce pending state

Mesos integration

Rename slave to agent
Upgrade tests to use mesos 0.25
Code refactors
Improve debug output
Enable checkpoint failover in FrameworkInfo
Fix timeout when pulling images
Add timeout to refuse offers
Fix double start issue

Misc

Fix license grant
Documentation update
Use discovery from docker/docker

1.0.1 (2015-12-09)

Scheduler

Set labels for pending containers to fix scheduler failure

Discovery

Increase default TTL and heartbeat values to reduce traffic to discovery

API

Fix 'ps -a' panic issue
Fix network connect/disconnect for overlay network
Fix connection leak on TLS connections
Fix CLI hang on events command
Fix newline issue with events
Improve OPTIONS handler
Fix image digest
Fix memoryswappiness default value
Enable profiling for HTTP in debug mode

Node Update

Provide options on swarm node update frequency

Mesos integration

Change offers timeout default to prevent other frameworks starvation
Improve error output for bad swarm mesos user
Fix connection failure when using Mesos with ZooKeeper

Misc

Update to Go 1.5.2
Documentation update

1.0 (2015-10-13)

Scheduler

Swarm is now pulling Images in parallel after the scheduling decision has been made, which mitigates the error happening occasionally with Docker pulls blocking the entire scheduler.

General stability

The Node refresh loop process has been improved and does not yield to a panic when removing an Engine and trying to refresh the state at the same time.
The refresh loop has been randomized to better handle huge scale scenarios (> 1000 nodes) where a refresh burst could occur and make the Manager unstable/fail.
General improvements and fixes for the Mesos experimental backend for swarm.

Integration with libnetwork / Support for overlay networking

It is now possible to use the new networking features with Swarm through the network sub-system. Commands like docker network create, docker network attach and docker network ls are now available through swarm.

Integration with Docker Volume Plugins

You can now use the docker volume plugin subsystem available with docker volume.

Leader Election

You can now specify the --replication-ttl flag to control how long it takes for Replicas to be notified of the Primary failure and take over the lead.

TLS

This is now possible to use TLS with discovery for consul and etcd using the new --discovery-opt flag.

0.4 (2015-08-04)

Scheduler

Reschedule with soft affinity when image cannot be pulled

Store

Replace the store pkg by libKV
Fixes about consul/etcd and zookeeper

API

Fix docker push name matching
Fix docker exec status code
Fix docker pull status code

Docker Engine Compatibility

Improve docker info with docker client 1.7.x
Add SystemTime, http_proxy, https_proxy and no_proxy to docker info

Mesos integration

Task creation timeout configurable
Fix issue with hostname in library image
Use 'docker_port' attribute if available
Add support for random ports

Misc

Add doc on leader election / high availability of swarm manager
Lots of typos/improvements to the doc
Switch to golang 1.4