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Automatically choose a subnet that doesn't already exists in user's
private networks if 'Auto' subnet option is selected.

filter out unexisting deleted networks

notify users that although connection information appears, vm may not be
available to connect to if it was just restarted/created.

ui inititalization process now includes a call to the introduced
`ui.views.userquota` view which returns a json representation of available user
quota limits. Quota information is used across ui to prevent user from the
effort of trying to allocate additional resources.

- add configurable vm hostname template
- allow override of vm connect messages
- replace ip by hostname in vm connection messages
- configurable ssh message template
- optional setting to append extra content in windows rdp files

additionally check osfamily image tag. If tag set to linux enable ssh
keys support.

UI_GROUPED_NETWORK_NAME -> UI_GROUPED_PUBLIC_NETWORK_NAME

apply nic network state changes only after successful api calls.

Add conflicts_check option when creating and add network. Check only
if a network is public.

Let tags argument in rapi calls be a list.
Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>

Get rapi client from snf-ganeti. Add depends argument (for chain jobs)
where needed.

Argument tags must be a list of strings and arguments add_reserved_ips and
remove_reserved_ips must be None or a list of strings.
Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>

Ganeti by default checks for conflicting IPs when creating/connecting
networks. This feature can be bypassed for private networks. We do
not care for IP uniqueness in case of private networks as long as they
are level 2 isolated (mac filtering/physical vlans).
Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>

Return Forbidden(403) instead of Unauthorized(401) when refusing a
requested action, because the VM is suspended or the resource is public.
Unauthorized should be used only when authentication is required and has
failed or has not yet been provided.

check_ganeti_master function was called in start before checking the
SNF_EVENTD_ENABLE config option. Move it just before eventd_start, just as in
restart.

Do reset network subnet selection each time user toggles dhcp choice.

Do reset network subnet selection each time user toggles dhcp choice.

to make connect to vm button that appears at the bottom of the private
network nics list be accessible even on empty networks.

Introduce the 'force-start' option in snf-ganeti-eventd init script.
When invoked with force-start snf-ganeti-eventd will start regardless
the node's role or the default settings. It will start:

 * even if the host is NOT the Ganeti master
 * even if snf-ganeti-eventd is NOT enabled in the defaults file

'force-start' should be used only during the preparation of a node to
become a Ganeti master a.k.a during a master-failover.

Modify snf-ganeti-eventd in order to get the name of the Ganeti cluster
from shared configuration files (ssconf) instead of performing a LUXI query.
Performing a LUXI restricts eventd to run only on the master node.

Do not allow any modification of any administratively suspended VM through the
API.

Add extra command line arguments, to allow the user specify the
link and mac_prefix of the new network if needed.