The preferred way of installing Icinga Web 2 is to use the official package repositories depending on which operating system and distribution you are running. But it is also possible to install Icinga Web 2 directly from source.
Step 1: Getting the Source First of all, you need to download the sources. Icinga Web 2 is available through a Git repository. You can clone this repository either via git or http protocol using the following URL, or can download from here:icingaweb2-06d9e41.tar.gz
http://git.icinga.org/icingaweb2.git
Step 2: Install the Source Choose a target directory and move Icinga Web 2 there.
mkdir /usr/share/icingaweb2 tar -zxvf icingaweb2-06d9e41.tar.gz mv icingaweb2 /usr/share/icingaweb2
Step 3: Configuring the Web Server Use icingacli to generate web server configuration for either Apache or nginx.
cd /usr/share/icingaweb2
Apache:
./bin/icingacli setup config webserver apache --document-root /usr/share/icingaweb2/public
Save the output as new file in your webserver's configuration directory.
Step 4: Preparing Web Setup
Because both web and CLI must have access to configuration and logs, permissions will be managed using a special system group. The web server user and CLI user have to be added to this system group.
Add the system group icingaweb2 in the first place.
addgroup --system icingaweb2
Add your web server's user to the system group icingaweb2:
usermod -a -G icingaweb2 www-data
Use icingacli to create the configuration directory which defaults to /etc/icingaweb2:
./bin/icingacli setup config directory
When using the web setup you are required to authenticate using a token. In order to generate a token use the icingacli:
./bin/icingacli setup token create
In case you do not remember the token you can show it using the icingacli:
./bin/icingacli setup token show
Step 5: Web Setup
Visit Icinga Web 2 in your browser and complete installation using the web setup: /icingaweb2/setup