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euca_conf

NAME

euca_conf - configuration tool for Eucalyptus

SYNOPSIS

euca_conf

DESCRIPTION

This manual page describes the euca_conf command which is used to configure Eucalyptus. There are few component to a Eucalyptus installation: the cloud controller (CLC), walrus, one or more cluster controller (CC), one storage controller (SC) per CC and node controller (NC).

CLC is the endpoint for the client tool, and contains the administrative UI (reachable at https://localhost:8443 on the CLC machine).

walrus is the S3 compatible storage for Eucalyptus.

CC controls a number of NCs, provisions the network for VMs.

SC gives EBS functionality to a cluster.

NC interact with the local hypervisor to start/stop/control instances.

OPTIONS

--help

display some help

--enable {walrus|sc|cloud}

Service to enable at the next start time. Needs to be run on the machine which has the service to start.

--disable {walrus|sc|cloud}

Disable services, preventing them to be started.

--register-cluster <name> <hostname>

Register a CC with the CLC. To allow provisioning of instances, at least one CC is needed on a running Eucalyptus installation. This command needs to be ran on the CLC machine, and the CC machine (possibly the same machine) needs to be reachable. The keys needs to be transferred from the CLC to the CC machine to enable secure operation, and ssh is used, so this command may ask for a password.
The user need to choose a name per CC.

--deregister-cluster <name> <hostname>

Deregister a CC.

--register-sc <CC> <hostname>

Register a SC with the CLC. The SC is needed to provide EBS support to a cluster logically resides with the CC. This command needs to be ran on the CLC machine, and the SC machine (possibly the same machine) needs to be reachable. The keys needs to be transferred from the CLC to the SC machine to enable secure operation, and ssh is used, so this command may ask for a password.
There has to be a CC already registered, since the SC works in conjunction with a CC.

--deregister-sc <hostname>

Deregister a running SC. You will need to register another SC to have EBS functionality for a named cluster.
WARNING: running this command will invalidate volumes and snapshots which this SC is responsible for.

--register-walrus <hostname>

Register a walrus with the CLC. A walrus is needed for a running Eucalyptus installation. This command needs to be ran on the CLC machine, and the walrus machine (possibly the same machine) needs to be reachable. The keys needs to be transferred from the CLC to the walrus machine to enable secure operation, and ssh is used, so this command may ask for a password.

--deregister-walrus <hostname>

Deregister a running walrus. You will need to register another walrus to have a functional Eucalyptus installation.
WARNING: running this command will invalidate the uploaded and running images, kernels and ramdisk! So you (and all the users) will have to upload new images.

--register-nodes host [host...]

Register NCs with a CC. NC and CC should be on the same network. This command needs to be run the CC which will controll the NCs. The keys needs to be transferred from the CC to the NC for enable secure operation, and ssh is used, so this command may ask for a password.

--deregister-nodes host [host...]

Intruct the CC to ignore specified NCs.

--list-walruses

List registered walruses. The command needs to be run on the CLC.

--list-scs

List registered storage controllers. The command needs to be run on the CLC.

--list-clusters

List registered cluster controllers. The command needs to be run on the CLC.

--instances <path>

The NC needs disk space to keep a copy of the running instances. Some copies are cached for faster startup time. This instruct the NC to user path as the local cache. path better be an empty directory, since the NC needs to initialized it every time.

--version

Print the version of Eucalyptus.

--setup

This command needs to run as root, before the first-time startup or Eucalyptus. Eucalyptus runs as an unprivileged user (EUCA_USER in config) but to interact with hypervisor and disk image, it will need to escalate privilege. To do so we use a command (euca_rootwrap) and this command set it up properly.

--check {nc|cc|cloud|sc|walrus}

This command is mainly used on the startup script for the specific component, since it checks that the environment is properly setup for the component (mainly permission on directory needs to be right for the eucalyptus user).

--cc-port <port>

--nc-port <port> --user <euca_user> --dhcpd <dhcpd> --dhcp_user <user>

These commands modify eucalyptus.conf so the changes will be reflected at the restart of the services.

COPYRIGHT

Copyright © 2009 Eucalyptus Systems Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

AUTHOR

Eucalyptus Systems Inc. <http://www.eucalyptus.com>