Install from a Snap


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Not to be used for new installs, the snapped version of MAAS is out of date in the stable channel whilst work to update it is in progress

Snaps are containerised software packages. To install MAAS from a snap simply enter the following:

sudo snap install maas --stable

After entering your password, the snap will download and install from the stable channel. However, MAAS needs initialising before it’s ready to go.

--devmode is currently a required argument and gives the MAAS snap access to all system resources, similar to an installed deb package.

Initialisation

The next step involves initialising MAAS with a run mode. Selecting one of the following modes dictates what services will run on the local system:

Mode Region Rack Database Description
all X X X All services
region X Region API server only
rack X Rack controller only
region+rack X X Region API server and rack controller
none Deinitializes MAAS and stops services

This list is different from the installation scenarios covered in the package install method (see Install from packages) where the installation of a “region controller” will, for example, include a database.

To initialise MAAS and select a run mode, use the maas init command with the –mode argument.

Example

The following demonstrates the all mode, a popular initialisation choice for MAAS:

sudo maas init --mode all

A dialog will appear that will gather some basic information:

MAAS URL [default=http://10.55.60.1:5240/MAAS]: http://192.168.122.1:5240/MAAS
Create first admin account:       
Username: admin
Password: ******
Again: ******
Email: admin@example.com
Import SSH keys [] (lp:user-id or gh:user-id): lp:petermatulis

The username and password will be used to access the web UI and if you enter a Launchpad or GitHub account name with associated SSH key, these will be imported into MAAS automatically.

MAAS URL

All run modes (except none) prompt for a MAAS URL, which is interpreted differently depending on the mode:

  • all, region+rack: Used to create a new region controller as well as to tell the rack controller how to find the region controller.
  • region: Used to create a new region controller.
  • rack: Used to locate the region controller.

Shared secret

The ‘rack’ and ‘region+rack’ modes will additionally ask for a shared secret that will allow the new rack controller to register with the region controller.

Reinitialising MAAS

To re-initialise MAAS, for example, to switch from rack to region:

sudo maas init --mode region

Additional `init` options

The init command can take a number of optional arguments. To list them all as well as read a brief description of each:

sudo maas init --help

Configuration verification

After a snap installation of MAAS, a verification of the currently running configuration can be done with:

sudo maas config

Sample output (for mode ‘all’):

Mode: all
Settings:
maas_url=http://192.168.122.1:5240/MAAS

Service statuses

The status of running services can likewise be checked:

sudo maas status

Sample output (for mode ‘all’):

bind9                            RUNNING   pid 7999, uptime 0:09:17
dhcpd                            STOPPED   Not started
dhcpd6                           STOPPED   Not started
ntp                              RUNNING   pid 8598, uptime 0:05:42
postgresql                       RUNNING   pid 8001, uptime 0:09:17
proxy                            STOPPED   Not started
rackd                            RUNNING   pid 8000, uptime 0:09:17
regiond:regiond-0                RUNNING   pid 8003, uptime 0:09:17
regiond:regiond-1                RUNNING   pid 8008, uptime 0:09:17
regiond:regiond-2                RUNNING   pid 8005, uptime 0:09:17
regiond:regiond-3                RUNNING   pid 8015, uptime 0:09:17
tgt                              RUNNING   pid 8040, uptime 0:09:15

With MAAS installed and initialised, you can now open the web UI in your browser. See Access the web UI for further details.


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