Openstack Charmers Next Ceph

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• auth-supported | string

  Default: cephx

  Which authentication flavour to use. . Valid options are "cephx" and "none". If "none" is specified, keys will still be created and deployed so that it can be enabled later.

• availability_zone | string

  Custom availablility zone to provide to Ceph for the OSD placement

• bluestore | boolean

  Use experimental bluestore storage format for OSD devices; only supported in Ceph Jewel (10.2.0) or later. . Note that despite bluestore being the default for Ceph Luminous, if this option is False, OSDs will still use filestore.

• ceph-cluster-network | string

  The IP address and netmask of the cluster (back-side) network (e.g., 192.168.0.0/24) . If multiple networks are to be used, a space-delimited list of a.b.c.d/x can be provided.

• ceph-public-network | string

  The IP address and netmask of the public (front-side) network (e.g., 192.168.0.0/24) . If multiple networks are to be used, a space-delimited list of a.b.c.d/x can be provided.

• config-flags | string

  User provided Ceph configuration. Supports a string representation of a python dictionary where each top-level key represents a section in the ceph.conf template. You may only use sections supported in the template. . WARNING: this is not the recommended way to configure the underlying services that this charm installs and is used at the user's own risk. This option is mainly provided as a stop-gap for users that either want to test the effect of modifying some config or who have found a critical bug in the way the charm has configured their services and need it fixed immediately. We ask that whenever this is used, that the user consider opening a bug on this charm at http://bugs.launchpad.net/charms providing an explanation of why the config was needed so that we may consider it for inclusion as a natively supported config in the the charm.

• customize-failure-domain | boolean

  Setting this to true will tell Ceph to replicate across Juju's Availability Zone instead of specifically by host.

• default-rbd-features | int

  Restrict the rbd features used to the specified level. If set, this will inform clients that they should set the config value `rbd default features`, for example: rbd default features = 1 This needs to be set to 1 when deploying a cloud with the nova-lxd hypervisor.

• ephemeral-unmount | string

  Cloud instances provider ephermeral storage which is normally mounted on /mnt. . Providing this option will force an unmount of the ephemeral device so that it can be used as a OSD storage device. This is useful for testing purposes (cloud deployment is not a typical use case).

• fsid | string

  fsid of the ceph cluster. To generate a suitable value use `uuid` . This configuration element is mandatory and the service will fail on install if it is not provided.

• harden | string

  Apply system hardening. Supports a space-delimited list of modules to run. Supported modules currently include os, ssh, apache and mysql.

• ignore-device-errors | boolean

  By default, the charm will raise errors if a whitelisted device is found, but for some reason the charm is unable to initialize the device for use by Ceph. . Setting this option to 'True' will result in the charm classifying such problems as warnings only and will not result in a hook error.

• key | string

  Key ID to import to the apt keyring to support use with arbitary source configuration from outside of Launchpad archives or PPA's.

• loglevel | int

  Default: 1

  Mon and OSD debug level. Max is 20.

• monitor-count | int

  Default: 3

  How many nodes to wait for before trying to create the monitor cluster this number needs to be odd, and more than three is a waste except for very large clusters.

• monitor-secret | string

  This value will become the mon. key. To generate a suitable value use: . ceph-authtool /dev/stdout --name=mon. --gen-key . This configuration element is mandatory and the service will fail on install if it is not provided.

• nagios_context | string

  Default: juju

  Used by the nrpe-external-master subordinate charm. A string that will be prepended to instance name to set the host name in nagios. So for instance the hostname would be something like: juju-myservice-0 If you're running multiple environments with the same services in them this allows you to differentiate between them.

• nagios_servicegroups | string

  A comma-separated list of nagios servicegroups. If left empty, the nagios_context will be used as the servicegroup

• osd-devices | string

  Default: /dev/vdb

  The devices to format and set up as osd volumes. . These devices are the range of devices that will be checked for and used across all service units, in addition to any volumes attached via the --storage flag during deployment. . For ceph >= 0.56.6 these can also be directories instead of devices - the charm assumes anything not starting with /dev is a directory instead.

• osd-format | string

  Default: xfs

  Format of filesystem to use for OSD devices; supported formats include: . xfs (Default >= 0.48.3) ext4 (Only option < 0.48.3) btrfs (experimental and not recommended) . Only supported with ceph >= 0.48.3.

• osd-journal | string

  The device to use as a shared journal drive for all OSD's. By default no journal device will be used. . Only supported with ceph >= 0.48.3.

• osd-journal-size | int

  Default: 1024

  Ceph osd journal size. The journal size should be at least twice the product of the expected drive speed multiplied by filestore max sync interval. However, the most common practice is to partition the journal drive (often an SSD), and mount it such that Ceph uses the entire partition for the journal. . Only supported with ceph >= 0.48.3.

• osd-reformat | string

  By default, the charm will not re-format a device that already looks as if it might be an OSD device. This is a safeguard to try to prevent data loss. . Specifying this option (any value) forces a reformat of any OSD devices found which are not already mounted.

• prefer-ipv6 | boolean

  If True enables IPv6 support. The charm will expect network interfaces to be configured with an IPv6 address. If set to False (default) IPv4 is expected. NOTE: these charms do not currently support IPv6 privacy extension. In order for this charm to function correctly, the privacy extension must be disabled and a non-temporary address must be configured/available on your network interface.

• source | string

  Optional configuration to support use of additional sources such as: - ppa:myteam/ppa - cloud:trusty-proposed/kilo - http://my.archive.com/ubuntu main The last option should be used in conjunction with the key configuration option. Note that a minimum ceph version of 0.48.2 is required for use with this charm which is NOT provided by the packages in the main Ubuntu archive for precise but is provided in the Ubuntu cloud archive.

• sysctl | string

  Default: { kernel.pid_max : 2097152, vm.max_map_count : 524288, kernel.threads-max: 2097152 }

  YAML-formatted associative array of sysctl key/value pairs to be set persistently. By default we set pid_max, max_map_count and threads-max to a high value to avoid problems with large numbers (>20) of OSDs recovering. very large clusters should set those values even higher (e.g. max for kernel.pid_max is 4194303).

• use-direct-io | boolean

  Default: True

  Configure use of direct IO for OSD journals.

• use-syslog | boolean

  If set to True, supporting services will log to syslog.