jsh: Jail shell

My own personal FreeBSD jail management script in POSIX shell.

It can be used to configure and maintain FreeBSD jails using only the built in jail management tools.

ZFS filesystems for releases, templates and jails.
Minimal reuse by using an overlay for each jail.
Ability to update the base filesystem for all jails.

This is very much a work-in-progress and things are added as I need them or they break.

Not recommended for production

Install

# cp jsh /usr/local/sbin/

Usage

$ jsh help
Usage: jsh [cmd]
start <name>            - Start jail <name>
stop <name>             - Stop jail <name>
shell <name>            - Start a shell in jail <name>
create <name> [id]      - Create jail <name>
delete <name>           - Delete jail <name>
release                 - Release sub-commands
template                - Template sub-commands

$ jsh release help
Usage: release [cmd]
sync                    - Create fs, fetch, extract & update
update                  - Update release using freebsd-update
delete                  - Delete named release

$ jsh template help
Usage: template [cmd]
sync                    - Sync template for current release
delete                  - Delete template for named release