options: loglevel: type: int default: 1 description: Mon and OSD debug level. Max is 20. use-syslog: type: boolean default: False description: | If set to True, supporting services will log to syslog. source: type: string default: description: | Optional configuration to support use of additional sources such as: . - ppa:myteam/ppa - cloud:xenial-proposed/ocata - http://my.archive.com/ubuntu main . The last option should be used in conjunction with the key configuration option. key: type: string default: description: | Key ID to import to the apt keyring to support use with arbitary source configuration from outside of Launchpad archives or PPA's. harden: type: string default: description: | Apply system hardening. Supports a space-delimited list of modules to run. Supported modules currently include os, ssh, apache and mysql. fsid: type: string default: description: | The unique identifier (fsid) of the Ceph cluster. . To generate a suitable value use `uuidgen`. If left empty, an fsid will be generated. . NOTE: Changing this configuration after deployment is not supported and new service units will not be able to join the cluster. config-flags: type: string default: description: | 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. auth-supported: type: string default: cephx description: | 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. monitor-secret: type: string default: description: | The Ceph secret key used by Ceph monitors. This value will become the mon.key. To generate a suitable value use: . ceph-authtool /dev/stdout --name=mon. --gen-key . If left empty, a secret key will be generated. . NOTE: Changing this configuration after deployment is not supported and new service units will not be able to join the cluster. monitor-count: type: int default: 3 description: | Number of ceph-mon units to wait for before attempting to bootstrap the monitor cluster. For production clusters the default value of 3 ceph-mon units is normally a good choice. . For test and development environments you can enable single-unit deployment by setting this to 1. . NOTE: To establish quorum and enable partition tolerance a odd number of ceph-mon units is required. monitor-hosts: type: string default: description: | A space-separated list of ceph mon hosts to use. This field is only used to migrate an existing cluster to a juju-managed solution and should otherwise be left unset. expected-osd-count: type: int default: 0 description: | Number of OSDs expected to be deployed in the cluster. This value is used for calculating the number of placement groups on pool creation. The number of placement groups for new pools are based on the actual number of OSDs in the cluster or the expected-osd-count, whichever is greater A value of 0 will cause the charm to only consider the actual number of OSDs in the cluster. pgs-per-osd: type: int default: 100 description: | The number of placement groups per OSD to target. It is important to properly size the number of placement groups per OSD as too many or too few placement groups per OSD may cause resource constraints and performance degradation. This value comes from the recommendation of the Ceph placement group calculator (http://ceph.com/pgcalc/) and recommended values are: . 100 - If the cluster OSD count is not expected to increase in the foreseeable future. 200 - If the cluster OSD count is expected to increase (up to 2x) in the foreseeable future. 300 - If the cluster OSD count is expected to increase between 2x and 3x in the foreseeable future. ceph-public-network: type: string default: description: | 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. ceph-cluster-network: type: string default: description: | 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. prefer-ipv6: type: boolean default: False description: | 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. sysctl: type: string default: '{ kernel.pid_max : 2097152, vm.max_map_count : 524288, kernel.threads-max: 2097152 }' description: | 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). customize-failure-domain: type: boolean default: false description: | Setting this to true will tell Ceph to replicate across Juju's Availability Zone instead of specifically by host. nagios_context: type: string default: "juju" description: | Used by the nrpe-external-master subordinate charm. A string that will be prepended to instance name to set the hostname 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: type: string default: "" description: | A comma-separated list of nagios servicegroups. If left empty, the nagios_context will be used as the servicegroup. nagios_degraded_thresh: default: 1.0 type: float description: "Threshold for degraded ratio (0.1 = 10%)" nagios_misplaced_thresh: default: 10.0 type: float description: "Threshold for misplaced ratio (0.1 = 10%)" nagios_recovery_rate: default: '1' type: string description: Recovery rate below which we consider recovery to be stalled nagios_ignore_nodeepscub: default: False type: boolean description: Whether to ignore the nodeep-scrub flag use-direct-io: type: boolean default: True description: Configure use of direct IO for OSD journals. default-rbd-features: type: int default: description: | 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. no-bootstrap: type: boolean default: False description: | Causes the charm to not do any of the initial bootstrapping of the Ceph monitor cluster. This is only intended to be used when migrating from the ceph all-in-one charm to a ceph-mon / ceph-osd deployment. Refer to the Charm Deployment guide at https://docs.openstack.org/charm-deployment-guide/latest/ for more information.