juju add-storage

Usage: juju add-storage [options] <unit> <storage-directive>

Summary:
Adds storage to a unit after it has been deployed.

Global Options:
--debug  (= false)
    equivalent to --show-log --logging-config=<root>=DEBUG
-h, --help  (= false)
    Show help on a command or other topic.
--logging-config (= "")
    specify log levels for modules
--quiet  (= false)
    show no informational output
--show-log  (= false)
    if set, write the log file to stderr
--verbose  (= false)
    show more verbose output

Command Options:
-B, --no-browser-login  (= false)
    Do not use web browser for authentication
-m, --model (= "")
    Model to operate in. Accepts [<controller name>:]<model name>|<model UUID>

Details:
Add storage to a pre-existing unit within a model. Storage is allocated from
a storage pool, using parameters provided within a "storage directive". (Use
'juju deploy --storage=<storage-directive>' to provision storage during the
deployment process).

	juju add-storage <unit> <storage-directive>

<unit> is the ID of a unit that is already in the model.

<storage-directive> describes to the charm how to refer to the storage,
and where to provision it from. <storage-directive> takes the following form:

    <storage-name>[=<storage-constraint>]

<storage-name> is defined in the charm's metadata.yaml file.

<storage-constraint> is a description of how Juju should provision storage
instances for the unit. The following three forms are accepted:

    <storage-pool>[,<count>][,<size>]
    <count>[,<size>]
    <size>

<storage-pool> is the storage pool to provision storage instances from. Must
be a name from 'juju storage-pools'.  The default pool is available via
executing 'juju model-config storage-default-block-source'.

<count> is the number of storage instances to provision from <storage-pool> of
<size>. Must be a positive integer. The default count is "1". May be restricted
by the charm, which can specify a maximum number of storage instances per unit.

<size> is the number of bytes to provision per storage instance. Must be a
positive number, followed by a size suffix.  Valid suffixes include M, G, T,
and P.  Defaults to "1024M", or the which can specify a minimum size required
by the charm.


Examples:

    # Add a 100MiB tmpfs storage instance for "pgdata" storage
    # to unit postgresql/0
    juju add-storage postgresql/0 pgdata=tmpfs,100M

    # Add 10 1TiB storage instances to "osd-devices" storage
    # to unit ceph-osd/0 from the model's default storage pool
    juju add-storage ceph-osd/0 osd-devices=1T,10

	# Add a storage instance from the (AWS-specific) ebs-ssd
	# storage pool for "brick" storage to unit gluster/0:
    juju add-storage gluster/0 brick=ebs-ssd


Further reading:

    https://juju.is/docs/storage


See also:

    import-filesystem
    storage
    storage-pools