Attention! Current pages describe CBSD version 12.1.x. If you are using an older version, please update first.
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Virtual Machine Configuring
% cbsd bconfig % cbsd bset
Configuring the Virtual Machine Settings
Each virtual machine CBSD stores the settings in the SQLite3 database. To change the settings of a VM can serve command cbsd bconfig, TUI launches menu for changing the basic settings.
Description of relevant parameters, you can read on the page VM create
You can write your own scripts to be executed within the jail and in the master host on startup and shutdown of the environment. For this, the system directory of jail ( $workdir/jails-system/$jname/ ) have the following directories:
- master_poststart.d - scripts for executing in the master host after jail starts (Be careful, because the scripts are is not jailed)
- master_poststop.d - scripts for executiong in the master host after jail stops (Be careful, because the scripts are is not jailed)
- master_prestart.d - scripts for executing in master host before jail starts (Be careful, because the scripts are is not jailed)
- master_prestop.d - scripts for execution in master host after jail stops (Be careful, because the scripts are is not jailed)
- start.d - scripts for execution within jail when jail is starts. Analog of parameter exec.start from original jail.conf
- stop.d - scripts for execution within jail when jail is starts. Analog of parameter exec.stop from original jail.conf
- remove.d - (since CBSD 11.0.10) scripts for execution on remove command
Write scripts to the master_\* directories can be useful if at the start-stop jail you need to perform some action is not associated with content of environment - for example, create a ZFS snapshot, put rules in IPFW and etc.
In scripts, you can use CBSD variables, such as $jname, $path, $data, $ip4_addr, for example, by placing a script (with execute permission) in /usr/jails/jails-system/jail1/master_poststart.d/notify.sh:
#!/bin/sh echo "Jail $jname started with $ip4_addr IP and placed on $path path" | mail -s "$jname started" email@example.com
You will receive notification upon startup cells by email: firstname.lastname@example.org
The functionality of execution custom scripts and the availability of variables in environments can play a big role in the integration of CBSD and external applications, such as Consul
As an example of use, see the article Example of using CBSD/bhyve and ISC-DHCPD (Serve IP address in bhyve through pre/post hooks)
As an example of use, see the article Example of using CBSD/jail and Consul (Register/unregister jail's via pre/post hooks, in Consul)