---
layout: default
navsection: installguide
title: Cheat Sheet
...

h3. Workbench: user management

As an Admin user, use the gear icon on the top right to visit the Users page. From there, use the 'Add new user' button to create a new user. Alternatively, visit an existing user with the 'Show' button next to the user's name. Then use the 'Admin' tab and click the 'Setup' button to activate the user, and create a virtual machine login as well as git repository for them.

h3. CLI setup

<pre>
ARVADOS_API_HOST={{ site.arvados_api_host }}
ARVADOS_API_TOKEN=1234567890qwertyuiopasdfghjklzxcvbnm1234567890zzzz
</pre>

h3. CLI: Create VM

<pre>
arv virtual_machine create --virtual-machine '{"hostname":"xxxxxxxchangeme.example.com"}'
</pre>

h3. CLI: Activate user

<pre>
user_uuid=xxxxxxxchangeme

arv user update --uuid "$user_uuid" --user '{"is_active":true}'
</pre>

h3. User &rarr; VM

Give @$user_uuid@ permission to log in to @$vm_uuid@ as @$target_username@

<pre>
user_uuid=xxxxxxxchangeme
vm_uuid=xxxxxxxchangeme
target_username=xxxxxxxchangeme

read -rd $'\000' newlink <<EOF; arv link create --link "$newlink"
{
"tail_uuid":"$user_uuid",
"head_uuid":"$vm_uuid",
"link_class":"permission",
"name":"can_login",
"properties":{"username":"$target_username"}
}
EOF
</pre>

h3. CLI: User &rarr; repo

Give @$user_uuid@ permission to commit to @$repo_uuid@ as @$repo_username@

<pre>
user_uuid=xxxxxxxchangeme
repo_uuid=xxxxxxxchangeme
repo_username=xxxxxxxchangeme

read -rd $'\000' newlink <<EOF; arv link create --link "$newlink"
{
"tail_uuid":"$user_uuid",
"head_uuid":"$repo_uuid",
"link_class":"permission",
"name":"can_write",
"properties":{"username":"$repo_username"}
}
EOF
</pre>