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=Accessing a VM with Multiple Users=
=Accessing a VM with Multiple Users=
[[File:VM multi user cloud init.png|400px|thumb| Cloud init to add multiple users (Click for larger image)]]
There are a number of ways to allow more than one person to log into a VM. We recommend creating new user accounts and adding public [[SSH Keys]] to these accounts.


There are a number of ways to allow more than one person to log in to a VM. We recommend creating new user accounts and adding public [[SSH Keys]] to these accounts. To do so manually, first create a new user account (under Ubuntu, for example) with the command {{Command|sudo adduser --disabled-password USERNAME}}
==Creating an account and keys==
Then add the person's public key to the <code>/home/$USER/.ssh/authorized_keys</code> file as described in [[SSH Keys]] and linked pages.
A new user account can be created on Ubuntu with the command {{Command|sudo adduser --disabled-password USERNAME}} To be able to connect, the new user will need to have a key pair, see [[Generating_SSH_keys_in_Windows|generating SSH keys in windows]] or [[Using_SSH_keys_in_Linux#Creating a Key Pair|creating a key pair in Linux or Mac]] depending on the operating system they will be connecting from. Then their public key must be added to <code>/home/USERNAME/.ssh/authorized_keys</code> on the VM, ensuring permissions and ownership are correct as described in steps 2 and 3 of [[Using_SSH_keys_in_Linux#Connecting using a Key Pair|connecting using a key pair]].


If you wish to allow the new user root privileges, then you need to add the permissions with
==Granting admin privileges==
In Ubuntu administrative, or root user privliges, can be given to a new user with the command
{{Command|sudo visudo -f /etc/sudoers.d/90-cloud-init-users}}
{{Command|sudo visudo -f /etc/sudoers.d/90-cloud-init-users}}
and add a line like
which opens an editor where a line like
  USERNAME ALL=(ALL) NOPASSWD:ALL
  USERNAME ALL=(ALL) NOPASSWD:ALL
For more detailed information about the visudo command and how to edit this file see this [https://www.digitalocean.com/community/tutorials/how-to-edit-the-sudoers-file-on-ubuntu-and-centos#what-is-visudo digitalocean] tutorial on the topic.
can be added. For more detailed information about the visudo command and how to edit this file see this [https://www.digitalocean.com/community/tutorials/how-to-edit-the-sudoers-file-on-ubuntu-and-centos#what-is-visudo digitalocean] tutorial on the topic.


==Add users with CloudInit during VM creation==
[[File:VM multi user cloud init.png|400px|thumb| Cloud init to add multiple users (Click for larger image)]]
Alternatively, you can do this during the creation of a VM using [http://cloudinit.readthedocs.org/en/latest/index.html# CloudInit]. The following CloudInit script adds two users <code>gretzky</code> and <code>lemieux</code> with and without sudo permissions respectively.
Alternatively, you can do this during the creation of a VM using [http://cloudinit.readthedocs.org/en/latest/index.html# CloudInit]. The following CloudInit script adds two users <code>gretzky</code> and <code>lemieux</code> with and without sudo permissions respectively.


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