Open Infrastructure

h1. The ungleich VM console

{{toc}}

h2. 1. System Architecture

This service supports  accessing console of your VM through guacamole service.

And To log-in VM console web needs datacenterlight.ch account. User's accounts are syncronized with LDAP.

!vnc_arch.png!

h2. 2. Set guacamole server

- run cdist

<pre>

cd ~/.cdist; git pull; cdist config -bj7 -p9 -vv desktop.ungleich.ch

</pre>

- in manifest for centos

<pre>

……

desktop.ungleich.ch)

        __guacamole_centos  --ldap-hostname 'ldap server url' \

          --ldap-port '636' \

          --ldap-encryption-method 'ssl' \

          --ldap-user-base-dn 'ou=XXX,dc=ungleich,dc=ch' \

          --ldap-search-bind-password ‘refer to pass' \

          --ldap-search-bind-dn 'cn=XXXXX,dc=ungleich,dc=ch' \

          --ldap-username-attribute 'uid' \

          --postgresql-hostname 'localhost' \

          --postgresql-username 'USER name' \

          --postgresql-database 'DB-name' \

          --postgresql-port     'XXXX' \

          --postgresql-password 'password' \

          --TOTP \

          --guacd-db 'postgresql'

</pre>

- in manifest for alpine (only support postgresql)

<pre>

……

desktop.ungleich.ch)

        _ungleich_vnc_console  --ldap-hostname 'ldap server url' \

          --ldap-port '636' \

          --ldap-encryption-method 'ssl' \

          --ldap-user-base-dn 'ou=XXX,dc=ungleich,dc=ch' \

          --ldap-search-bind-password ‘refer to pass' \

          --ldap-search-bind-dn 'cn=XXXXX,dc=ungleich,dc=ch' \

          --ldap-username-attribute 'uid' \

          --postgresql-hostname 'localhost' \

          --postgresql-username 'USER name' \

          --postgresql-database 'DB-name' \

          --postgresql-port     'XXXX' \

          --postgresql-password 'password' \

          --TOTP \

          --opn-hostname 'opennebula host-server name' \

          --opn-key 'opennebula access key' \

          --guacd-db 'postgresql'

</pre>

h2. 3. Create VNC connection for VM 

!cre_conn.png!

h3. 1) git clone ungleich-tool(vnc_console_connection, it has cloned by __ungleich_vnc_console cdist)

h3. 2) set vnc connection automatically on vnc_console server

h4. (1) vnc connection python

- ldap_list.py : get user list from ldap server

- db_export.py : update postgresql database with vnc connection info

- get_info.py : create vnc_connecion info

- config.py : config parameter

h4. (2) create crontab

<pre>

crontab -e

</pre>

<pre>

*/5 * * * * python3 /opt/ungleich-tools/vnc_console_connection/get_info.py # __cron/console_connection

</pre>

h2. 4. Monitoring VNC console

- We are monitoring VNC console with prometheus.

- run cdist __dcl_monitoring_server(update prometheus.yml)

h2. %{color:blue}※User VM information is synchronized with the VM console every 5 minute. If you create VM right now, you can access VM console after 5 minutes.(vnc connection script takes about in 15 seconds.)%