Configuration Management Tool for PHP Web application

A rudimentary configuration management tool and use it to configure servers for production service of a simple PHP web application. Do not use off-the-shelf tools like (but not limited to) Puppet, Chef, Fabric, or Ansible. Instead, implement a tool to meet the following specifications and then use that tool to configure the two servers.

Requirements for the rudimentary configuration management tool:

If the tool has dependencies not available on a standard Ubuntu instance you may include a bootstrap.sh program to resolve them
The tool must provide an abstraction that allows specifying a file's content and metadata (owner, group, mode)
The tool must provide an abstraction that allows installing and removing Debian packages
The tool must provide some mechanism for restarting a service when relevant files or packages are updated
The tool must be idempotent - it must be safe to apply the configuration over and over again
The toil must specify a web server capable of running the PHP application below

<?php
header("Content-Type: text/plain");
echo "Hello, world!\n";
?>

The server must respond 200 OK and include the string "Hello, world!" in their response to requests from curl -sv http://ip-address (public)

Proposal

initial setup, create SSH keys for further usage
similar to Ansible, apply changes to target server via SSH only
define bootstrap, meta and content in templates
major steps: init -> update -> status

Code structure

├── LICENSE
├── README.md
├── sscmt
└── templates
    ├── php.bootstrap
    ├── php.homepage
    └── php.meta

Usage

./sscmt <command> <target> <params>

Examples:
./sscmt init web-server1
./sscmt update web-server1
./sscmt status web-server1 "appY"
./sscmt add-package web-server1 "appX appY appZ"
./sscmt remove-package web-server1 "appY"

Initial setup

./sscmt init <target>  # target: a unique name of server
./sscmt apply <target>

Note: SSH keys and meta data saved under ~/.sscmt/

Change page content and Deploy

modify homepage under templates/php.homepage, run:

./sscmt apply <target>

Modify meta or bootstrap

modify bootstrap or meta configuration under templates, run:

./sscmt init <target>  # target: a unique name of server
./sscmt apply <target>

Check status

run ./sscmt status

Better TODO

apply to all targets together in one run
support different languages

sshi100 / sscmt