Managing your cloud resources with OpenStack: Difference between revisions

Managing your cloud resources with OpenStack (view source)

Revision as of 16:25, 14 December 2017

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 =Accessing a VM with Multiple Users= <!--T:28-->
-[[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.
+==Creating an account and keys==
 <!--T:29-->
-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}}
+To add a new user account manually, first create a new user account. For example if you using Ubuntu, the command {{Command|sudo adduser --disabled-password USERNAME}} will create a new user. The new user also needs to have a keypair, 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 is correct as described in steps 2 and 3 of [[Using_SSH_keys_in_Linux#Connecting using a Key Pair|connecting using a key pair]].
-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.
+==Granting admin privileges==
 <!--T:44-->
-If you wish to allow the new user root privileges, then you need to add the permissions with
+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}}
-and add a line like
+which opens an editor where a line like
   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)]]
 <!--T:30-->
 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.