ganeti-confd(8) [debian man page]
ganeti-confd(8) Version 2.5.2 ganeti-confd(8) Name ganeti-confd - Ganeti conf daemon Synopsis ganeti-confd [-f] [-d] DESCRIPTION
ganeti-confd is a daemon used to answer queries related to the configuration of a Ganeti cluster. For testing purposes, you can give the -f option and the program won't detach from the running terminal. Debug-level message can be activated by giving the -d option. ROLE The role of the conf daemon is to make sure we have a highly available and very fast way to query cluster configuration values. This dae- mon is automatically active on all master candidates, and so has no single point of failure. It communicates via UDP so each query can eas- ily be sent to multiple servers, and it answers queries from a cached copy of the config it keeps in memory, so no disk access is required to get an answer. The config is reloaded from disk automatically when it changes, with a rate limit of once per second. If the conf daemon is stopped on all nodes, its clients won't be able to get query answers. COMMUNICATION PROTOCOL The confd protocol is an HMAC authenticated json-encoded custom format, over UDP. A client library is provided to make it easy to write software to query confd. More information can be found in the Ganeti 2.1 design doc, and an example usage can be seen in the (external) NBMA daemon for Ganeti. REPORTING BUGS
Report bugs to project website (http://code.google.com/p/ganeti/) or contact the developers using the Ganeti mailing list (ganeti@google- groups.com). SEE ALSO
Ganeti overview and specifications: ganeti(7) (general overview), ganeti-os-interface(7) (guest OS definitions). Ganeti commands: gnt-cluster(8) (cluster-wide commands), gnt-job(8) (job-related commands), gnt-node(8) (node-related commands), gnt- instance(8) (instance commands), gnt-os(8) (guest OS commands), gnt-group(8) (node group commands), gnt-backup(8) (instance import/export commands), gnt-debug(8) (debug commands). Ganeti daemons: ganeti-watcher(8) (automatic instance restarter), ganeti-cleaner(8) (job queue cleaner), ganeti-noded(8) (node daemon), ganeti-masterd(8) (master daemon), ganeti-rapi(8) (remote API daemon). Ganeti htools: htools(1) (generic binary), hbal(1) (cluster balancer), hspace(1) (capacity calculation), hail(1) (IAllocator plugin), hscan(1) (data gatherer from remote clusters). COPYRIGHT
Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc. Permission is granted to copy, distribute and/or modify under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL. Ganeti ganeti-confd(8)
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ganeti-rapi(8) Version 2.5.2 ganeti-rapi(8) Name ganeti-rapi - Ganeti remote API daemon Synopsis ganeti-rapi [-d] [-f] [--no-ssl] [-K SSL_KEY_FILE] [-C SSL_CERT_FILE] DESCRIPTION
ganeti-rapi is the daemon providing a remote API for Ganeti clusters. It is automatically started on the master node, and by default it uses SSL encryption. This can be disabled by passing the --no-ssl option, or alternatively the certificate used can be changed via the -C option and the key via the -K option. The daemon will listen to the "ganeti-rapi" tcp port, as listed in the system services database, or if not defined, to port 5080 by default. See the Ganeti remote API documentation for further information. Requests are logged to /var/log/ganeti/rapi-daemon.log, in the same format as for the node and master daemon. ACCESS CONTROLS
All query operations are allowed without authentication. Only the modification operations require authentication, in the form of basic authentication. The users and their rights are defined in the /var/lib/ganeti/rapi/users file. The users should be listed one per line, in the following format: username password options Currently the options field should equal the string write in order to actually give write permission for the given users. Example: rclient secret write guest testpw The first user (rclient) has read-write rights, whereas the second user (guest) only has read (query) rights, and as such is no different than not using authentication at all. More details (including on how to use hashed passwords) can be found in the Ganeti documentation. REPORTING BUGS
Report bugs to project website (http://code.google.com/p/ganeti/) or contact the developers using the Ganeti mailing list (ganeti@google- groups.com). SEE ALSO
Ganeti overview and specifications: ganeti(7) (general overview), ganeti-os-interface(7) (guest OS definitions). Ganeti commands: gnt-cluster(8) (cluster-wide commands), gnt-job(8) (job-related commands), gnt-node(8) (node-related commands), gnt- instance(8) (instance commands), gnt-os(8) (guest OS commands), gnt-group(8) (node group commands), gnt-backup(8) (instance import/export commands), gnt-debug(8) (debug commands). Ganeti daemons: ganeti-watcher(8) (automatic instance restarter), ganeti-cleaner(8) (job queue cleaner), ganeti-noded(8) (node daemon), ganeti-masterd(8) (master daemon), ganeti-rapi(8) (remote API daemon). Ganeti htools: htools(1) (generic binary), hbal(1) (cluster balancer), hspace(1) (capacity calculation), hail(1) (IAllocator plugin), hscan(1) (data gatherer from remote clusters). COPYRIGHT
Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc. Permission is granted to copy, distribute and/or modify under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL. Ganeti ganeti-rapi(8)