Initial commit

13 files changed, 1305 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9c7e18a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/vendor/
+iac.phar
diff --git a/Readme.md b/Readme.md
new file mode 100644
index 0000000..884587d
--- /dev/null
+++ b/Readme.md
@@ -0,0 +1,3 @@
+# References
+
+- https://medium.com/@tfidry/create-and-deploy-secure-phars-c5572f10b4dd
diff --git a/bin/compile b/bin/compile
new file mode 100644
index 0000000..a36967e
--- /dev/null
+++ b/bin/compile
@@ -0,0 +1,10 @@
+#!/usr/bin/env php
+<?php
+
+unlink(getcwd() . '/iac.phar');
+#chdir(dirname(__DIR__));
+#exec('composer install --no-dev');
+
+$phar = new Phar('iac.phar');
+$phar->setStub(Phar::createDefaultStub());
+$phar->buildFromDirectory(dirname(__DIR__), '/(src|vendor|index\.php)/');
diff --git a/bin/iac b/bin/iac
new file mode 100644
index 0000000..b645010
--- /dev/null
+++ b/bin/iac
@@ -0,0 +1,4 @@
+#!/usr/bin/env php
+<?php
+
+require dirname(__DIR__) . '/index.php';
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..f1b9ba7
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,28 @@
+{
+    "name": "dweipert/php-iac",
+    "type": "library",
+    "license": "AGPL-3.0-only",
+    "authors": [
+        {
+            "name": "Daniel Weipert",
+            "email": "code@drogueronin.de"
+        }
+    ],
+    "require": {
+        "php": "^8.0",
+        "symfony/console": "^5.2",
+        "petrknap/php-singleton": "^1.0",
+        "phpseclib/phpseclib": "^3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "PHPIAC\\": "src"
+        }
+    },
+    "bin": [
+        "bin/iac"
+    ],
+    "scripts": {
+        "compile": "@php -dphar.readonly=0 bin/compile"
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..4536647
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,1087 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "aa317bad874c3a475803c6d7057df553",
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+            "name": "paragonie/constant_time_encoding",
+            "version": "v2.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/constant_time_encoding.git",
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+                "reference": "f34c2b11eb9d2c9318e13540a1dbc2a3afbd939c",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7|^8"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^6|^7|^8|^9",
+                "vimeo/psalm": "^1|^2|^3|^4"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "ParagonIE\\ConstantTime\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "Steve 'Sc00bz' Thomas",
+                    "email": "steve@tobtu.com",
+                    "homepage": "https://www.tobtu.com",
+                    "role": "Original Developer"
+                }
+            ],
+            "description": "Constant-time Implementations of RFC 4648 Encoding (Base-64, Base-32, Base-16)",
+            "keywords": [
+                "base16",
+                "base32",
+                "base32_decode",
+                "base32_encode",
+                "base64",
+                "base64_decode",
+                "base64_encode",
+                "bin2hex",
+                "encoding",
+                "hex",
+                "hex2bin",
+                "rfc4648"
+            ],
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/constant_time_encoding/issues",
+                "source": "https://github.com/paragonie/constant_time_encoding"
+            },
+            "time": "2020-12-06T15:14:20+00:00"
+        },
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+                "url": "https://github.com/paragonie/random_compat.git",
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+                "reference": "996434e5492cb4c3edcb9168db6fbb1359ef965a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">= 7"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*|5.*",
+                "vimeo/psalm": "^1"
+            },
+            "suggest": {
+                "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
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+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com"
+                }
+            ],
+            "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+            "keywords": [
+                "csprng",
+                "polyfill",
+                "pseudorandom",
+                "random"
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+                "source": "https://github.com/paragonie/random_compat"
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+        },
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+            "version": "v1.0.0",
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+                "type": "git",
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+                "shasum": ""
+            },
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+                "php": ">=5.4"
+            },
+            "require-dev": {
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+            },
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+            "autoload": {
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+                }
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
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+                    "email": "dev@petrknap.cz",
+                    "homepage": "http://petrknap.cz"
+                }
+            ],
+            "description": "Singleton pattern for PHP",
+            "homepage": "https://github.com/petrknap/php-singleton",
+            "support": {
+                "issues": "https://github.com/petrknap/php-singleton/issues",
+                "source": "https://github.com/petrknap/php-singleton/tree/master"
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+            "name": "phpseclib/phpseclib",
+            "version": "3.0.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpseclib/phpseclib.git",
+                "reference": "d369510df0ebd5e1a5d0fe3d4d23c55fa87a403d"
+            },
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+                "shasum": ""
+            },
+            "require": {
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+                "paragonie/random_compat": "^1.4|^2.0|^9.99.99",
+                "php": ">=5.6.1"
+            },
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+                "ext-libsodium": "SSH2/SFTP can make use of some algorithms provided by the libsodium-php extension.",
+                "ext-mcrypt": "Install the Mcrypt extension in order to speed up a few other cryptographic operations.",
+                "ext-openssl": "Install the OpenSSL extension in order to speed up a wide variety of cryptographic operations."
+            },
+            "type": "library",
+            "autoload": {
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+                    "email": "pm@datasphere.ch",
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+                    "email": "bantu@phpbb.com",
+                    "role": "Developer"
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+                    "email": "petrich@tronic-media.com",
+                    "role": "Developer"
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+            "homepage": "http://phpseclib.sourceforge.net",
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+            "description": "Common Container Interface (PHP FIG PSR-11)",
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+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-intl-normalizer.git",
+                "reference": "43a0283138253ed1d48d352ab6d0bdb3f809f248"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/43a0283138253ed1d48d352ab6d0bdb3f809f248",
+                "reference": "43a0283138253ed1d48d352ab6d0bdb3f809f248",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.22-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Normalizer\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's Normalizer class and related functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "intl",
+                "normalizer",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-intl-normalizer/tree/v1.22.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-22T09:19:47+00:00"
+        },
+        {
+            "name": "symfony/polyfill-mbstring",
+            "version": "v1.22.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-mbstring.git",
+                "reference": "5232de97ee3b75b0360528dae24e73db49566ab1"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/5232de97ee3b75b0360528dae24e73db49566ab1",
+                "reference": "5232de97ee3b75b0360528dae24e73db49566ab1",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "suggest": {
+                "ext-mbstring": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.22-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for the Mbstring extension",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "mbstring",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.22.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-22T09:19:47+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php73",
+            "version": "v1.22.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php73.git",
+                "reference": "a678b42e92f86eca04b7fa4c0f6f19d097fb69e2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php73/zipball/a678b42e92f86eca04b7fa4c0f6f19d097fb69e2",
+                "reference": "a678b42e92f86eca04b7fa4c0f6f19d097fb69e2",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.22-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php73\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php73/tree/v1.22.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-07T16:49:33+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php80",
+            "version": "v1.22.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php80.git",
+                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/dc3063ba22c2a1fd2f45ed856374d79114998f91",
+                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.22-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php80\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ion Bazan",
+                    "email": "ion.bazan@gmail.com"
+                },
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php80/tree/v1.22.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-07T16:49:33+00:00"
+        },
+        {
+            "name": "symfony/service-contracts",
+            "version": "v2.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/service-contracts.git",
+                "reference": "d15da7ba4957ffb8f1747218be9e1a121fd298a1"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/d15da7ba4957ffb8f1747218be9e1a121fd298a1",
+                "reference": "d15da7ba4957ffb8f1747218be9e1a121fd298a1",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5",
+                "psr/container": "^1.0"
+            },
+            "suggest": {
+                "symfony/service-implementation": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.2-dev"
+                },
+                "thanks": {
+                    "name": "symfony/contracts",
+                    "url": "https://github.com/symfony/contracts"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Contracts\\Service\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Generic abstractions related to writing services",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "abstractions",
+                "contracts",
+                "decoupling",
+                "interfaces",
+                "interoperability",
+                "standards"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/service-contracts/tree/master"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-09-07T11:33:47+00:00"
+        },
+        {
+            "name": "symfony/string",
+            "version": "v5.2.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/string.git",
+                "reference": "ad0bd91bce2054103f5eaa18ebeba8d3bc2a0572"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/string/zipball/ad0bd91bce2054103f5eaa18ebeba8d3bc2a0572",
+                "reference": "ad0bd91bce2054103f5eaa18ebeba8d3bc2a0572",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-intl-grapheme": "~1.0",
+                "symfony/polyfill-intl-normalizer": "~1.0",
+                "symfony/polyfill-mbstring": "~1.0",
+                "symfony/polyfill-php80": "~1.15"
+            },
+            "require-dev": {
+                "symfony/error-handler": "^4.4|^5.0",
+                "symfony/http-client": "^4.4|^5.0",
+                "symfony/translation-contracts": "^1.1|^2",
+                "symfony/var-exporter": "^4.4|^5.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\String\\": ""
+                },
+                "files": [
+                    "Resources/functions.php"
+                ],
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "grapheme",
+                "i18n",
+                "string",
+                "unicode",
+                "utf-8",
+                "utf8"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/string/tree/v5.2.6"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-03-17T17:12:15+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {
+        "php": "^8.0"
+    },
+    "platform-dev": [],
+    "plugin-api-version": "2.0.0"
+}
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..0585c36
--- /dev/null
+++ b/index.php
@@ -0,0 +1,6 @@
+#!/usr/bin/env php
+<?php
+
+require __DIR__ . '/vendor/autoload.php';
+
+\PHPIAC\IAC::getInstance();
diff --git a/src/Command/RunCommand.php b/src/Command/RunCommand.php
new file mode 100644
index 0000000..048e94c
--- /dev/null
+++ b/src/Command/RunCommand.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace PHPIAC\Command;
+
+use PHPIAC\Task;
+use phpseclib3\Crypt\PublicKeyLoader;
+use phpseclib3\Net\SSH2;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class RunCommand extends Command
+{
+    protected static $defaultName = 'run';
+
+    protected function configure()
+    {}
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $cwd = getcwd();
+        $config = include $cwd . '/config.php';
+
+        global $ssh;
+        $ssh = new SSH2($config['host']);
+        if (! $ssh->login($config['user'], PublicKeyLoader::load(file_get_contents($config['private_key_file'])))) {
+            throw new \Exception('Login failed');
+        }
+
+        $commands = [];
+        foreach ($config['tasks'] as $task) {
+            /**@var Task $task*/
+            if (! $task->module->checkState()) {
+                $output->writeln('Adding commands from ' . get_class($task->module));
+                array_push($commands, ...$task->module->getCommands());
+            }
+            else {
+                $output->writeln('Skipping commands from ' . get_class($task->module));
+            }
+        }
+
+        $ssh->exec(implode(PHP_EOL, $commands));
+
+        return Command::SUCCESS;
+    }
+}
diff --git a/src/IAC.php b/src/IAC.php
new file mode 100644
index 0000000..c4e476d
--- /dev/null
+++ b/src/IAC.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace PHPIAC;
+
+use PetrKnap\Php\Singleton\SingletonTrait;
+use PHPIAC\Command\RunCommand;
+use Symfony\Component\Console\Application;
+
+class IAC
+{
+    use SingletonTrait;
+
+    public function __construct()
+    {
+        $application = new Application();
+
+        $defaultCommand = new RunCommand();
+        $application->add($defaultCommand);
+        $application->setDefaultCommand($defaultCommand->getName());
+
+        # ... other commands here
+
+        $application->run();
+    }
+}
diff --git a/src/Module/AptModule.php b/src/Module/AptModule.php
new file mode 100644
index 0000000..ff4cb95
--- /dev/null
+++ b/src/Module/AptModule.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace PHPIAC\Module;
+
+use phpseclib3\Net\SSH2;
+
+class AptModule implements ModuleInterface
+{
+    public function __construct(
+        private string $package,
+        private string $state = State::PRESENT
+    ) {}
+
+    public function checkState(): bool
+    {
+        global $ssh;
+        /**@var SSH2 $ssh*/
+        $ssh->enablePTY();
+        $ssh->exec("which $this->package");
+
+        if ($this->state === State::PRESENT) {
+            $state = ! empty($ssh->read());
+        }
+        else if ($this->state === State::ABSENT) {
+            $state = empty($ssh->read());
+        }
+
+        $ssh->disablePTY();
+
+        return $state;
+    }
+
+    public function getCommands(): array
+    {
+        if ($this->state === State::PRESENT) {
+            return [
+                "sudo apt install -y $this->package",
+            ];
+        }
+        else if ($this->state === State::ABSENT) {
+            return [
+                "sudo apt remove -y $this->package",
+            ];
+        }
+
+        return [];
+    }
+}
diff --git a/src/Module/ModuleInterface.php b/src/Module/ModuleInterface.php
new file mode 100644
index 0000000..2963b5f
--- /dev/null
+++ b/src/Module/ModuleInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace PHPIAC\Module;
+
+interface ModuleInterface
+{
+    public function checkState(): bool;
+
+    public function getCommands(): array;
+}
diff --git a/src/Module/State.php b/src/Module/State.php
new file mode 100644
index 0000000..c7f7af9
--- /dev/null
+++ b/src/Module/State.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace PHPIAC\Module;
+
+class State
+{
+    public const PRESENT = 'present';
+    public const ABSENT = 'absent';
+}
diff --git a/src/Task.php b/src/Task.php
new file mode 100644
index 0000000..598f55c
--- /dev/null
+++ b/src/Task.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace PHPIAC;
+
+use PHPIAC\Module\ModuleInterface;
+
+class Task
+{
+    public function __construct(
+        public ModuleInterface $module,
+        public array $vars,
+    ) {}
+
+    public function setModule(ModuleInterface $module): self
+    {
+        $this->module = $module;
+
+        return $this;
+    }
+
+    public function setVars(array $vars): self
+    {
+        $this->vars = $vars;
+
+        return $this;
+    }
+}