Ceph

h1. 1B - Ceph Management API

h3. Live Pad

The live pad can be found here: "[pad]":http://pad.ceph.com/p/Ceph_management_API

Summit Snapshot

wCoding tasks (some done, see http://github.com/ceph/ceph branch wip-ceph-cli for an out-of-date working branch)

If you have ideas/comments/suggestions, contact us at irc.oftc.net #ceph, or ceph-devel@vger.kernel.org!

# Create command/param/help registry in monclient, export in JSON on request

** expression language for parameter descriptions: type, name, valid ranges/values, etc.

** make it simple to add new commands and easy to find the full list of commands supported

# Frontend CLI that requests command registry and validates user input, submits JSON command request

** do as much validation upfront as possible, as generically as possible

** write validation code such that it can be reused in REST endpoint

** format help, provide substring help

** allow for command-line completion (allow partial matching of input)

** format actual command request in unambiguous complete JSON form

# Remove existing command validation/parsing from monclient

** rely on front end to pass only valid commands as much as possible (some validation must talk to the cluster)

** refactor common tasks, like selection of output format

# Allow all formatted commands to output JSON or XML (planning ahead for REST)

# Validate all existing functionality remains unchanged with much-enhanced unit tests and existing tests

# migration path for existing 'allow command ...' cap strings

# discover/describe --admin-daemon and tell commands (currently just passthru)

# merge to master... 0.63ish?

# Add command-line completion to frontend and BASH snippets

# Create webserver for REST endpoint (after the interface is designed) using chunks of the CLI code as needed

# Allow REST endpoint to respond in JSON or XML at user's request

# Add some appropriate sort of monitoring to the REST endpoint

# ability to access daemon admin socket command set via REST mgmt endpoint

# ability to do 'tell <name> ...'

# ability to access cluster event log via cli, REST mgmt endpoint

# ceph-deploy support for deploying a management endpoint daemon

# (Possible): allow client to register interest in cluster events (cluster/OSD full, daemon status change, quorum change, administrative events/change) using an unknown mechanism (perhaps a URL that can be accessed on such events, perhaps with a parameter structure to carry information about the

Build / release tasks

# document upgrade path: upgrade cli tool first (it can talk to either old or new mons), mons second.

# merge first batch of cli stuff

# merge rest mgmt endpoint as it finishes

Documentation tasks

# Fix up manpage/webdoc for CLI; decide to document each or just defer to CLI help

# A large pile of documentation for REST API

Deprecation tasks

n/a