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https://github.com/DtxdF/AppJail

Simple and easy-to-use tool for creating portable jails.
https://github.com/DtxdF/AppJail

appjail automation containers deployment freebsd jail makejail manage-freebsd-jails zfs

Last synced: 6 days ago
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Simple and easy-to-use tool for creating portable jails.

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# AppJail



AppJail is an open-source BSD-3 licensed framework entirely written in `sh(1)` and C to create isolated, portable and easy to deploy environments using FreeBSD jails that behaves like an application.



Its goals are to simplify life for sysadmins and developers by providing a unified interface that automates the jail workflow by combining the base FreeBSD tools.



*AppJail offers simple ways to do complex things.*



## Features



* Easy to use.

* Parallel startup (Healthcheckers, Jails & NAT).

* UFS and ZFS support.

* RACCT/RCTL support.

* NAT support.

* Port expose - network port forwarding into jail.

* IPv4 and IPv6 support.

* DHCP and SLAAC support.

* Virtual networks - A jail can be on several virtual networks at the same time.

* Bridge support.

* VNET support

* Deploy your applications much easier using Makejail!

* Netgraph support.

* LinuxJails support.

* Supports thin and thick jails.

* TinyJails - Experimental feature to create a very stripped down jail that is very useful to distribute.

* Startup order control - Using priorities and the boot flag makes management much easier.

* Jail dependency support.

* Initscripts - Make your jails interactive!

* Backup your jails using tarballs or raw images (ZFS only) with a single command.

* Modular structure - each command is a unique file that has its own responsibility in AppJail. This makes AppJail maintenance much easier.

* Table interface - many commands have a table-like interface, which is very familiar to many sysadmin tools.

* No databases - each configuration is separated in each entity (networks, jails, etc.) which makes maintenance much easier.

* Healthcheckers - Monitor your jails and make sure they are healthy!

* Images - Your jail in a single file!

* DEVFS support - Dynamic device management!

* ...



## Documentation



[AppJail Documentation](https://appjail.readthedocs.io/en/latest)



## Comparing AppJail



[How does AppJail compare to other FreeBSD jail frameworks?](https://appjail.readthedocs.io/en/latest/compare/)



## Support



[Need help using AppJail?](https://github.com/DtxdF/AppJail/wiki#support)



## Design decisions



**Characters Allowed**:



* Jail Name, Network Name, Custom Stage and Volume Name: Although jail names can use any character (except `.`), AppJail does not use any possible character. Valid regex is `^[a-zA-Z0-9_][a-zA-Z0-9_-]*$`.

* Interface Name: For interface names, the regex is `^[a-zA-Z0-9_][a-zA-Z0-9_.]*$`.

* JNG: For `jng`, the regex is `^[a-zA-Z_]+[a-zA-Z0-9_]*$` and for its links the regex is `^[0-9a-zA-Z_]+$`.



**AppJail tries to not modify the host**:



Such as making changes to `rc.conf(5)`, `sysctl.conf(5)`, the firewall configuration file, etc. It is preferable that the user is aware of such changes, this simplifies a lot.



**AppJail tries not to be interactive**



**AppJail tries not to play with jails created not by itself**



**AppJail tries not to automate everything**:



Instead of using one command to do a lot of work, it is preferable to combine small commands. A perfect example is `appjail makejail` which leaves the responsibility to the main commands.



**AppJail is not focused on building software**:



There are very interesting projects like `poudriere` or `synth` that can also create a custom repository. Use that custom repository in a jail created by AppJail to install your ports.



## TODO



- [ ] Add support for `ipfw` and `ipfilter`.

- [x] Although Makejails can be retrieved anywhere by the methods described in `INCLUDE`, a centralized repository to easily retrieve generic Makejails is useful. This can be done on Github or Gitlab. (See https://github.com/AppJail-makejails).

- [x] Create Makejails for applications. It is a difficult job to do alone, but with many people it is feasible. (Done using the centralized repository, of course this is in progress anyway).

- [ ] rc scripts to start resource limitation rules, nat for jails and to expose ports. `appjail quick` and `appjail-config` do this job, but it can be useful to spend less time starting/stopping jails.

- [X] Implement a supervisor. (Done using a similar way to supervise jails and their services named `Healthcheckers`).

- [x] Add option to `appjail config` to check if the parameters of a template are valid for `jail(8)`. (Done with the new tool, `appjail-config`)

- [ ] Implement all `jail(8)` parameters in `appjail quick`.

- [ ] The `jng` script is useful, but AppJail must create the Netgraph nodes in the same way as bridges and epairs.

- [X] Man pages:

  * [X] **appjail(1)**

  * [X] **appjail-ajspec(5)**

  * [X] **appjail-apply(1)**

  * [X] **appjail-checkOld(1)**

  * [X] **appjail-cmd(1)**

  * [X] **appjail-cpuset(1)**

  * [X] **appjail.conf(5)**

  * [X] **appjail-config(1)**

  * [X] **appjail-deleteOld(1)**

  * [X] **appjail-devfs(1)**

  * [X] **appjail-disable(1)**

  * [X] **appjail-dns(8)**

  * [X] **appjail-ephemeral(7)**

  * [X] **appjail-enable(1)**

  * [X] **appjail-enabled(1)**

  * [X] **appjail-etcupdate(1)**

  * [X] **appjail-expose(1)**

  * [X] **appjail-fetch(1)**

  * [X] **appjail-fstab(1)**

  * [X] **appjail-healthcheck(1)**

  * [X] **appjail-help(1)**

  * [X] **appjail-image(1)**

  * [X] **appjail-initscript(5)**

  * [X] **appjail-jail(1)**

  * [X] **appjail-limits(1)**

  * [X] **appjail-label(1)**

  * [X] **appjail-login(1)**

  * [X] **appjail-logs(1)**

  * [X] **appjail-makejail(1)**

  * [X] **appjail-makejail(5)**

  * [X] **appjail-nat(1)**:

  * [X] **appjail-network(1)**

  * [X] **appjail-pkg(1)**

  * [X] **appjail-quick(1)**

  * [X] **appjail-restart(1)**

  * [X] **appjail-rstop(1)**

  * [X] **appjail-run(1)**

  * [X] **appjail-service(1)**

  * [X] **appjail-start(1)**

  * [X] **appjail-startup(1)**

  * [X] **appjail-status(1)**

  * [X] **appjail-stop(1)**

  * [X] **appjail-sysrc(1)**

  * [X] **appjail-template(5)**

  * [X] **appjail-tutorial(7)**

  * [X] **appjail-update(1)**

  * [X] **appjail-upgrade(1)**

  * [X] **appjail-usage(1)**

  * [X] **appjail-user(8)**

  * [X] **appjail-volume(1)**

  * [X] **appjail-version(1)**

  * [X] **appjail-zfs(1)**

 

## Contributing



If you have found a bug, have an idea or need help, use the [issue tracker](https://github.com/DtxdF/AppJail/issues/new). Of course, PRs are welcome.