Contiv Storage release v0.3.0

Contiv Storage Release v0.3.0

Contiv Storage is the all-singing, all-dancing volumes system for Swarm and
Mesos. It provides a locking and policies subsystem for all volume types
including Ceph and NFS. The locking subsystem is used to ensure that two of the
same volume cannot be scheduled at the same time, while the policies system is
used to enforce volume compliance. Contiv Storage is best suited to large
clusters and labs.

This beta release version of Contiv Storage brings the latest features and
bugfixes.

NOTE: this version has a bug in volsupervisor which may cause it to fail
to snapshot occasionally, but it should overall work which is why we decided to
release now. We will have a fix in 0.3.1 (about a week).

• Plugin Name Change: the standard volplugin plugin name was changed to
  volcontiv. Documentation will been updated soon.
• Several deprecated API endpoints were removed from apiserver.
• apiserver now returns the full volume JSON for the copy when making a copy
  of another volume.
• Many improvements to our general locking strategy:
  • Mounts right after restart should be more reliable
  • Mount failures should heal more appropriately and faster.
• Volume will only be snapshotted by volsupervisor now if they are mounted.
  This occurs unless it's an unlocked volume, which will snapshot whether
  mounted or not. We feel this is more in-line with how
  snapshots should work for users.
• New volmigrate tool for upgrading our schema to the latest version (for
  running the latest version!). There were no schema changes this time, but it
  will be expected that people run this to upgrade volplugin.
• Validation of policy is much more strict than it used to be.
• Backend classes: You can now specify "ceph" or "nfs" as a "backend" attribute
  which takes place of the "backends" dictionary if specified to provide a
  canned set of options for each "backends" parameter. This allows you to write
  simpler policies with the same effect.
• Policy revisions are now kept in the database -- when you upload a new policy
  for a previously-used name, the previous version is archived. If you wish to
  read the archives you can use volcli to retrieve them.

You can get volplugin below, or if you wish to run it in containers you can try
the contiv/volplugin-autorun image:

docker run -it -v /var/run/docker.sock:/var/run/docker.sock contiv/volplugin-autorun:v0.3.0

Note that you must have an existing ceph installation for this to work!

If you just wish to configure volplugin itself, you can pull
contiv/volplugin. It contains
volcli, volplugin, apiserver, and volsupervisor and is tagged by release
version.

docker pull contiv/volplugin:v0.3.0

Contiv Storage Release v0.2.0

Contiv Storage Release v0.2.0

Contiv Storage is the all-singing, all-dancing volumes system for Swarm and
Mesos. It provides a locking and policies subsystem for all volume types
including Ceph and NFS. The locking subsystem is used to ensure that two of the
same volume cannot be scheduled at the same time, while the policies system is
used to enforce volume compliance. Contiv Storage is best suited to large
clusters and labs.

This beta release version of Contiv Storage brings the latest features and
bugfixes.

• apiserver is the new volmaster: apiserver is now just an API server and no
  longer a master process. The master functionality has been distributed into
  volplugin itself, so it can run as an independent unit. As a result, a
  limited number of apiservers really need to be available now, instead of
  there being lots of them.
• As a result, the volplugin now needs to communicate with an etcd cluster
  directly. We think this is a good trade to make for a cluster where docker
  depends on etcd already (f.e. kubernetes or cluster store).
• Use jitter function to mitigate thundering herd problems for mount TTL
  refresh and a few other things.
• Vastly improved error output across the board.
• Unlocked and Locked mode also now apply to mounts that live on the same host.
  Previously, a locked mount could take mounts on the same host for additional
  containers. We felt this logic was unintuitive, and so made the behavior
  consistent across the board. Please report to the
  issues if you disagree!
• volcli volume remove now takes a -f switch to forcefully remove the
  underlying volume no matter what.
• Bugfixes:
  • If no volumes to list, do not return a "not found" error but instead give empty output.
  • Fix a map corruption in volplugin's local mount tracking.

You can get volplugin below, or if you wish to run it in containers you can try
the contiv/volplugin-autorun image:

docker run -it -v /var/run/docker.sock:/var/run/docker.sock contiv/volplugin-autorun:v0.2.0

Note that you must have an existing ceph installation for this to work!

If you just wish to configure volplugin itself, you can pull contiv/volplugin. It contains volcli, volplugin, apiserver, and volsupervisor and is tagged by release version.

docker pull contiv/volplugin:v0.2.0

v0.1.1: Swarm Compatibility Fix

Contiv Storage Release v0.1.1

Contiv Storage is the all-singing, all-dancing volumes system for Swarm and
Mesos. It provides a locking and policies subsystem for all volume types
including Ceph and NFS. The locking subsystem is used to ensure that two of the
same volume cannot be scheduled at the same time, while the policies system is
used to enforce volume compliance. Contiv Storage is best suited to large
clusters and labs.

This beta release version of Contiv Storage brings the latest features and
bugfixes.

• Improved compatibility for Swarm 1.1+ and Docker 1.12+

If you want a newer release than the latest release build, you can find Contiv
Storage's latest builds here.

Contiv Storage Release v0.1.0

Contiv Storage Release v0.1.0

Contiv Storage is the all-singing, all-dancing volumes system for Swarm and Mesos. It provides a locking and policies subsystem for all volume types including Ceph and NFS. The locking subsystem is used to ensure that two of the same volume cannot be scheduled at the same time, while the policies system is used to enforce volume compliance. Contiv Storage is best suited to large clusters and labs.

This beta release version of Contiv Storage brings the latest features and bugfixes.

First release! Nearly a year's worth of work!

If you want a newer release than the latest release build, you can find Contiv Storage's latest builds here.