Configuring
As mentioned in Getting Started, AppJail is configured dynamically to make it much easier to use, however, the payoff is performance and reliability. Performance degrades because AppJail needs to execute commands to get information from your system and reliability degrades because those values are obtained dynamically and can change at any time depending on some factors. Fortunately, configuring AppJail is very easy.
Note
AppJail configuration file has many options, we just need to set some useful options for better usability, performance and reliability.
EXT_IF
External Interface. In almost all cases, the interface you use to access the network.
ON_IF
The name or group of the network interface to transmit packets on. In almost all cases, it must have the same value as EXT_IF.
FREEBSD_VERSION
FreeBSD version of the current system.
FREEBSD_ARCH
FreeBSD architecture of the current system.
IMAGE_ARCH
Default architecture used by AppJail images.
See also:
SHORTEN_DOMAIN_NAMES
It is used to shorten the domain name of your jails, so that you can communicate between them using only their name, such as redis instead of redis.ajnet.appjail when using the DNS system.
See also:
ENABLE_ZFS
If you plan to take advantage of ZFS with AppJail, set this option.
Warning
Do not mix installations that already have this option disabled, change PREFIX
or re-import jails.
See also:
Configuration file (example)
/usr/local/etc/appjail/appjail.conf:
EXT_IF=jext
ON_IF=jext
FREEBSD_VERSION=13.2-RELEASE
FREEBSD_ARCH=amd64
IMAGE_ARCH=amd64
SHORTEN_DOMAIN_NAMES=1
# Remove the # character if you want to use ZFS with AppJail.
#ENABLE_ZFS=1