Open Infrastructure

h1. The ungleich VNC console

h2. 1. System Architecture

!archi.png!

h2. 2. set guacamole server

- run cdist

<pre>

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

</pre>

- in manifest 

<pre>

……

desktop.ungleich.ch)

        __guacamole_centos  --ldap-hostname 'ldap1.ungleich.ch' \

          --ldap-port '636' \

          --ldap-encryption-method 'ssl' \

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

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

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

          --ldap-username-attribute 'uid' \

          --postgresql-hostname 'localhost' \

          --postgresql-username 'guacamole' \

          --postgresql-database 'guacamole' \

          --postgresql-port     '5432' \

          --postgresql-password 'guacamole' \

          --TOTP \

          --guacd-db 'postgresql'

</pre>

h2. 3. create connection

!g_con.png!

*- set postgresql client on opennebul server*

h3. 1) install postgresql on opennebual server

<pre>

apt install postgresql-client

</pre>

h3. 2) config postgresql for accessing from external

vi /var/lib/pgsql/data/postgresql.conf on guacamole server(desktop)

<pre>

listen_addresses = '*'

</pre>

vi /var/lib/pgsql/data/pg_hba.conf on guacamole server(desktop)

<pre>

host    all         all            opennbula server address trust

</pre>

restart postgresql

<pre>

systemctl restart postgresql

</pre>

*- set vnc connection automatically on opennebula server* 

h3. 1) create script

vm_list_dual_uid : create VM list file(uid, email, VM Number, host, VNC port) (https://code.ungleich.ch/ungleich-public/ungleich-tools/blob/master/vm_list_dual_uid)

--> get VM info (uid, email, host, port) from ldap and opennebula , it takes about 5~6 minustes now.

--> there are only ldap's accounts made by dashboard

create-guacamole-session-ldap-db : create VNC connection on desktop (https://code.ungleich.ch/ungleich-public/ungleich-tools/blob/master/create-guacamole-session-ldap-DB)

--> there is no function of removing user.(The ldap's account remains even if the customer is deleted from the dashboard.)

--> It takes about 1~2 minutes.

h3. 2) create crontab

every hour <-- it need some time to run script

<pre>

crontab -e

</pre>

<pre>

15 0,2,4,6,8,10,12,14,16,18,20,22 * * * ./vm_list_dual_uid #create vm_list

45 0,2,4,6,8,10,12,14,16,18,20,22 * * * ./create-guacamole-session-ldap-db vm_vnc_list #create vm_list

</pre>