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Setupify Provisioning Tool

WARNING: Setupify is currently in a state of experimentation. Use tag release.

Setupify is a collection of bash scripts for provisioning a system. The included scripts emphasizes PHP and Zephir based tech, although it could be adapted to any use. The bash scripts use only the most typical shell commands and so they should be portable to any modern Unix-like environment. Also included is a robust and optional dialog or whiptail shell menu program. One huge benefit of using Setupify as your starting point is that you can easily transition from PHP to Zephir based development.

Intended Uses

• Quick and flexible provisioning of a Zephir/Phalcon environment for development or testing.
• As a starting point for provisioning a prioprietary application stack. In this case its a simple matter to delete sections and files before starting your enhancements.
• As a starting point for any open source Phalcon or Zephir based tech stack

How to start

In the setup/ directory there are three files; install, menu and settings.

By running ./setup/install without any arguments you will see the following:

dschissler@setupify:~/setupify$ ./setup/install
An OS name must be specified for provisioning.
Possible OS names include:
ubuntu1804

So you would run ./setup/install ubuntu1804 to start the automated provisioning. Setupify will first obtain sudo permissions for later use.

Menu Assisted Provisioning

Setupify includes a powerful dialog or whiptail menu wizard. To run the menu program call:

./setup/menu

You will see a screen for choosing the operating system.

You may bypass this screen by supplying the operating system from the command line:

./setup/menu ubuntu1804

Next you will see the overview screen. Select the "Load Everything" entry.

We'll choose the "Customize" menu item. Notice how the installers are now defined.

If you were to choose "Install" at this point it would enter the automated provisioning in the exact same way as if you ran ./setup/install ubuntu1804.

Instead we'll first customize the "Phalcon" installer. So Overview --> Customize --> Phalcon.

Phalcon may be installed from; the official repository, tarball or git repository. We'll choose the respository method.

We'll choose the nightly channel. This is an easy way to get the latest Phalcon code.

Since we're developing a PHP extension that uses the latest Zephir language features we're going to want the latest tech.

We'll choose the "Git" installaton method.

Enter the URL to the Zephir git repository. The default value should be the official Zephir location. If you were working on improving Zephir then you could choose your own forked repository.

Choose the default "development" branch.

In this example we'll pretend that we've already provisioned the system and so we'll want to skip some of the time intensive operations. Choose the "Interests" item from the "Customize" menu.

Now make sure the PACKAGES and PECL check boxes are deselected. This will skip some some unnecessary steps. This is most useful when developing so that you don't need to continually wait for irrelevant processes.

Finally return to the Overview screen. Notice that the installer methods are different than they first appeared. You are now ready to provision using the non-default methods.

Create Custom Menus

Setupify allows you to easily create custom menus. The setup/lib/section/ directory contains sections which may each have an optional menu. Setupify provides the following helper menus; menuTarball, menuGit, menuRepository, menuPhar. To create a new custom menu item simple create a new section directory and place a new menu file inside of it.

Create a helloworld menu with installer default

Create an empty setup/lib/section/helloworld/menu_helloworld.sh file. This file does't need to be set as executable since it will be sourced instead of run directly.

Create a data file setup/lib/section/helloworld/data.sh

HELLOWORLD_DEFAULT=tarball:555.5555

Notice the HELLOWORLD installer in the status section as well as the helloworld menu item.

Note: This is a hack to quickly demonstrate how to add new setupify functionality. To do this properly you will need to follow the conventions laid out in the other section menus in the setup/lib/sections/ directory.

Installer Definitions

Setupify is based around environment variable installer definitions. For example the PHALCON_INSTALLER variable describes both the method and version for installing Phalcon. The installer variable is broken into two or three colon delineated sections depending on the installer method. Some installer methods need more information than others.

Here is the default Phalcon installer definition. It states that Phalcon should be installed from the official stable repository.

PHALCON_INSTALLER=repository:stable

Here is a Phalcon installer definition for installing from the 4.0.5 tarball from the official releases.

PHALCON_INSTALLER=tarball:4.0.5

This installs the same version but instead uses the tarball URL.

PHALCON_INSTALLER=tarball:https://github.com/phalcon/cphalcon/archive/v4.0.5.tar.gz

It can also be used to install from a downloaded tarball.

PHALCON_INSTALLER=tarball:file:///home/dschissler/v4.0.5.tar.gz

Finally here is a git example. Notice that there are three sections delineated by a colon. Note that it reads from the left and so the colon in the https: is ignored.

PHALCON_INSTALLER=git:3.4.x:https://github.com/cphalcon/cphalcon.git

For Zephir lets look at the installer method for using a PHAR program.

ZCOMPILER_INSTALLER=phar:0.12.18

Again a full URL can be used

ZCOMPILER_INSTALLER=phar:https://github.com/phalcon/zephir/releases/download/0.12.18/zephir.phar

Alternative and more persistent settings

1. You may define your installers and other settings in ./setup/settings.

2. You may also export your installer definitions from the shell. For example these commands will change the Phalcon repository to mainline without modifying setup/settings:

dschissler@setupify:~/setupify$ export PHALCON_INSTALLER=repository:mainline
dschissler@setupify:~/setupify$ ./setup/install ubuntu1804

This could be useful if you were going to be testing the provision many times from a single terminal.

Powerful init.d provisioning stages

Setupify provides powerful staged init scripts for configuring the system package manager, zephir_parser, Zephir and Phalcon.

To start look at the setup/os/ubuntu1804/ directory. You will see one file; os.sh and three directories init.d/, functions/ and lists/.

Basic OS Parts

• os.sh defines operating specific settings. If you port setupify to a new OS or add capabilities to your init scripts then you'll likely want to change some of the settings.
• functions/ defines OS specific functions. Define functions here and they will be available in the init scripts.
• lists/ stores basic lists like package names. Inside is the package and pecl files which simply list out the packages to install. This way you don't need to define your package lists in bash code. You can comment out lines in the lists by starting them with a hash.

init.d Scripts The init.d/ directory is filled with number ordered executable scripts. For example script 00-foo.sh runs before 01-fee.sh. If ordering is an important matter then it is advised to not rely on alphabetic ordering of the name part but to instead assign the script a different numbered prefix.

Out of the box the init scripts currently installs; system packages, PECL packages, zephir_parser, Zephir, Phalcon and Node.js. At the moment you will need to setup a database and web server yourself. There are just two many combinations for an initial release.

Interest Sections

You can create "interest" environment variables within your init.d scripts that will allow you to toggle the execution of blocks of code or to completely skip the contents of a script. Setupify will scan your code for any ^[A-Z]+_INTEREST$ variable patterns in your code.

Here is a typical example of what happens when an interest is not defined:

[[ -z "$PECL_INTEREST" ]] && exit 0

There are two standard ways to use interests depending on if the install or menu script is used.

1. The ./setup/install script is designed to be a one-stop-shop for installing a base system and so it will activate all interests in order to perform every operation.

2. Te ./setup/menu script starts with all interests disabled in order to allow you to turn on individual interests during the development process. You may turn on interests by specifying "Load everything" from the main menu or by enabling individual interests in the "Interests" customize menu. This is a core philosophical feature of setupify in that it allows you to use the same provision script for deployment as well as trying out new software versions during development.

In order to achieve the desired usability of setupify, please make sure that any operations peformed in your init.d scripts are indepotent. For example: that means if a user is added to something that running the script again will not have a negative effect on the system either; by first checking that the user exists or by checking that adding the user again will not break anything or result in multiple entries. If you can test each system modification for initial install as well as when it is performed a second time then you will be able to enjoy a production provisioning system that also doubles as an amazing development tool.

Being able to manually define interests can be exceedingly useful when developing new tech or testing your custom provisioning steps. If the answer to the question "Do I really want to wait for my PECL PHP extensions to compile each time that I check something?" is a "No!" then consider not turning on that interests steps while running the menu script.

Low tech script avoidance

Additionally a low tech way to skip an entire init.d init script is to temporary rename it be prefixed with the hash character. For example renaming 01-foo.sh to #01-foo.sh will cause it be ignored. This is a great low tech way of debugging your custom init.d scripts.

Init Script Failure

Sometimes your init scripts will fail. If any init script exits with a value other than 0 then the provisioning will be halted with an error message of the offending script.

License

Setupify is licensed under the terms of LGPL v3.