updated the docker example to propose several layouts

Author: xavierlacot

.castor/.gitignore

@@ -0,0 +1,2 @@
+.castor.stub.php
+.env

.castor/castor.php

@@ -0,0 +1,151 @@
+<?php
+
+use Castor\Attribute\AsArgument;
+use Castor\Attribute\AsTask;
+use function Castor\context;
+use function Castor\finder;
+use function Castor\fs;
+use function Castor\request;
+use function Castor\io;
+use function Castor\run;
+
+#[AsTask(name: 'run', description: 'Build, start and ensure examples are working as expected')]
+function _run(
+    #[AsArgument(description: 'The name of the specific example to run', autocomplete: 'get_examples')]
+    ?string $example = null,
+): void
+{
+    if (!fs()->exists('.env')) {
+        io()->error('No .env file found. Please create one by copying the .env.dist file and filling in the required values.');
+        return;
+    }
+
+    stop();
+
+    if ($example) {
+        io()->title("Building and running example: $example");
+
+        example($example);
+
+        return;
+    }
+
+    io()->title('Building and running all examples');
+
+    foreach (get_examples() as $example) {
+        example($example);
+    }
+}
+
+#[AsTask(description: 'Build the given example')]
+function build(
+    #[AsArgument(description: 'The name of the specific example to run', autocomplete: 'get_examples')]
+    ?string $example = null,
+): void
+{
+    if (!$example) {
+        foreach (get_examples() as $example) {
+            build($example);
+        }
+        return;
+    }
+
+    io()->title("Building example: $example");
+
+    run('docker compose build', workingDirectory: $example);
+}
+
+#[AsTask(description: 'Start the given example')]
+function start(
+    #[AsArgument(description: 'The name of the specific example to run', autocomplete: 'get_examples')]
+    string $example,
+): void
+{
+    io()->title("Starting example: $example");
+
+    run('docker compose up -d', workingDirectory: $example);
+
+    sleep(2);
+}
+
+#[AsTask(description: 'Test the given example')]
+function test(
+    #[AsArgument(description: 'The name of the specific example to run', autocomplete: 'get_examples')]
+    string $example,
+): void
+{
+    io()->title("Testing example: $example");
+
+    $fails = 0;
+    !assertResponse('/', 200) && $fails++;
+    !assertResponse('/example/301-rio.html', 301) && $fails++;
+    !assertResponse('/example/302-rio.html', 302) && $fails++;
+    !assertResponse('/example/404-nginx.html', 404) && $fails++;
+    !assertResponse('/example/404-rio.html', 404) && $fails++;
+    !assertResponse('/example/410-rio.html', 410) && $fails++;
+
+    if ($fails > 0) {
+        throw new \RuntimeException("Some tests were not successful for example \"$example\"");
+    }
+
+    io()->writeln('');
+}
+
+#[AsTask(description: 'Stop the given example')]
+function stop(
+    #[AsArgument(description: 'The name of the specific example to run', autocomplete: 'get_examples')]
+    ?string $example = null,
+): void
+{
+    if (!$example) {
+        foreach (get_examples() as $example) {
+            stop($example);
+        }
+        return;
+    }
+
+    io()->title("Stopping example: $example");
+
+    run('docker compose stop', workingDirectory: $example, allowFailure: true);
+}
+
+function get_examples(): iterable
+{
+    /** @var Symfony\Component\Finder\Finder $examples */
+    $examples = finder()
+        ->in(context()->workingDirectory)
+        ->notName('app')
+        ->directories()
+        ->depth(0)
+        ->sortByName()
+    ;
+
+    foreach ($examples as $example) {
+        yield $example->getBasename();
+    }
+}
+
+function example(string $example): void
+{
+    if (!fs()->exists("$example/docker-compose.yml")) {
+        throw new \RuntimeException("The example directory \"$example\" does not exist or does not contain a docker-compose.yml file");
+    }
+
+    build($example);
+    start($example);
+    test($example);
+    stop($example);
+}
+
+function assertResponse(string $url, int $expectedStatusCode): bool
+{
+    $response = request('GET', 'http://127.0.0.1:8080' . $url, [
+        'max_redirects' => 0,
+    ]);
+
+    $result = $response->getStatusCode() === $expectedStatusCode ? '✔️' : '❌';
+
+    io()->text("Asserting response for $url is status $expectedStatusCode: $result");
+
+    return $response->getStatusCode() === $expectedStatusCode;
+}

.env.dist

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+REDIRECTIONIO_PROJECT_KEY=PASTE HERE YOUR REDIRECTION.IO PROJECT KEY

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: "0 0 * * MON"
+
+jobs:
+  run-examples:
+    name: Run all examples
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.3
+          tools: castor
+
+      - name: Setup .env
+        run: "echo 'REDIRECTIONIO_PROJECT_KEY=${{ secrets.REDIRECTIONIO_PROJECT_KEY }}' > $GITHUB_WORKSPACE/.env"
+
+      - name: Build and run all examples
+        run: castor run

.gitignore

@@ -0,0 +1,2 @@
+.env
+.castor.stub.php

LICENSE.md

@@ -1,4 +1,4 @@
-Copyright (c) 2021 redirection.io
+Copyright (c) 2021-present redirection.io
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

README.md

@@ -1,8 +1,8 @@
-# redirection.io nginx module Docker example
+# redirection.io Docker examples
 
 It is quite common to use Docker in development or production environments. As
-this has been requested by several of our users, we have set up a short example
-of a Docker stack for the redirection.io agent and nginx module.
+this has been requested by several of our users, we have set up different examples
+to show how to integrate redirection.io in various Docker setups.
 
 ## Usage
 
@@ -11,71 +11,32 @@ of a Docker stack for the redirection.io agent and nginx module.
     git clone https://github.com/redirectionio/docker-example.git
     cd docker-example
     ```
- * create an account and a project on [redirection.io](https://redirection.io), retrieve your `project key` in [redirection.io's manager](https://redirection.io/manager) and copy it in the nginx configuration file:
-   * [for the apt-installed nginx module version](./services/nginx/etc/nginx/sites-enabled/default#L9)
-   * [for the compiled nginx module version](./services/nginx-compiled/etc/nginx/nginx.conf#L35)
-    ```nginx
-    redirectionio_project_key PUT HERE YOUR PROJECT KEY;
+ * create an account and a project on [redirection.io](https://redirection.io), retrieve your `project key` in [redirection.io's manager](https://redirection.io/manager) and copy it
+ * copy the `.env.dist` file to `.env` and paste your `project key` in it:
+    ```sh
+    cp .env.dist .env
+    ```
+ * choose one of the docker layouts (see below), and:
+    ```sh
+    cd <your choice>
     ```
-   The `project key` can be found on the "Instances" screen of your project:
-   simply click on "Setup on your infrastructure".
  * build the infrastructure:
     ```sh
-    docker-compose build
+    docker compose build
     ```
  * run it:
     ```sh
-    docker-compose up -d
+    docker compose up -d
     ```
+ * open your browser and go to [http://localhost:8080/](http://localhost:8080/)
 
-Head to:
- * [http://localhost:8080/](http://localhost:8080/) to use a nginx module installed from our packages repository.
- * [http://localhost:8081/](http://localhost:8081/) to use a nginx module compiled during the install.
-
-## Explanations
-
-The `service` directory contains three services:
-
- * **redirectionio-agent**: a simple Dockerfile to get the agent running
- * **nginx**: a nginx Dockerfile based on the Ubuntu 20.04 image, with nginx and
-   the redirection.io nginx module installed from our apt repository
- * **nginx-compiled**: a nginx Dockerfile based on the official nginx image,
-   with all the directives to get the redirection.io nginx module built and
-   loaded
-
-Depending on your install requirements, the version of nginx that you are using
-and other specific nginx modules that you want to use, you can either use the
-`nginx` or the `nginx-compiled` services as examples.
-
-### redirectionio-agent
-
-The agent is installed using our [manual installation](https://redirection.io/documentation/developer-documentation/installation-of-the-agent#manual-installation) instructions. Note that we have enabled a `/var/lib/redirectionio` volume, used to store [redirection.io agent's cache data](https://redirection.io/documentation/developer-documentation/agent-configuration-reference#datadir).
-
-### nginx
-
-This is a standard Ubuntu 20.04 image, with the distribution-provided nginx package, and [libnginx-mod-redirectionio installed from our deb repository, as explained in our documentation](https://redirection.io/documentation/developer-documentation/nginx-module#debian-and-apt-based-distributions).
-
-It defines a single VirtualHost, [for which redirection is enabled](./services/nginx/etc/nginx/sites-enabled/default#L8-L9).
-
-### nginx-compiled
-
-Nginx dynamic modules require binary compatibility to be properly loaded, which
-means that they have to be compiled with the exact same configuration directives
-like your `nginx` binary.
-
-redirection.io offers APT and RPM repositories, with many versions of
-`libnginx-mod-redirectionio` to match classical distribution nginx packages.
-However, should your nginx install vary from these traditional layouts, you will
-be forced to compile our nginx module yourself, to match your own nginx version.
+## Available Docker layouts
 
-This is what the [nginx Dockerfile](./services/nginx-compiled/Dockerfile) achieves. Basically:
- * it downloads the nginx sources in the same version like the installed `nginx` binary
- * it downloads and build the libredirectionio
- * it downloads the redirection.io nginx module
- * it builds this module with the same configure arguments the installed `nginx` binary was configured
- * it moves the build module in the right folder
- * it [loads the module](./services/nginx-compiled/etc/nginx/nginx.conf#L7) in the nginx configuration
- * it [enables redirection.io for the server](./services/nginx-compiled/etc/nginx/nginx.conf#L34-L35)
+ * [**agent-as-reverse-proxy**](./agent-as-reverse-proxy/README.md): the redirection.io agent, installed from our repository, is used as a reverse proxy. This is the most simple and recommended setup.
+ * [**apache-module**](./apache-module/README.md): a simple Apache setup, with redirection.io module installed from our apt repository
+ * [**apache-module-custom**](./apache-module-custom/README.md): an Apache setup with the redirection.io module compiled from sources
+ * [**nginx-module**](./nginx-module/README.md): a simple nginx setup, with redirection.io module installed from our apt repository
+ * [**nginx-module-custom**](./nginx-module-custom/README.md): a nginx setup with the redirection.io module compiled from sources
 
 ## Help and troubleshooting
 

agent-as-reverse-proxy/README.md

@@ -0,0 +1,18 @@
+# Using the redirection.io agent as a reverse proxy in a Docker environment
+
+This example shows how to use the redirection.io agent as a reverse proxy in a Docker environment. It is the most simple and versatile way to install redirection.io in your Docker stack, as it can be used with any backend service. The redirection.io agent act as a very fast reverse proxy, intercepting requests and responses between the client and the backend service.
+
+> [!TIP]
+> You can read more about [the redirection.io agent as a reverse proxy in our documentation](https://redirection.io/documentation/developer-documentation/the-agent-as-a-reverse-proxy).
+
+## Description
+
+The `service` directory contains the **redirectionio-agent** service: a simple Dockerfile to get the agent running. The [`/etc/redirectionio/agent.yml`](./services/redirectionio-agent/etc/redirectionio/agent.yml) file is used to configure the agent and proxify the traffic to a backend service.
+
+The `docker-compose.yml` file also mentions a `nginx` service, which is a simple Nginx server used as a backend service. You can replace it with your own backend service.
+
+![The redirection.io agent as a reverse proxy](../app/agent-as-reverse-proxy.png)
+
+### redirectionio-agent
+
+The agent is installed using our [manual installation](https://redirection.io/documentation/developer-documentation/installation-of-the-agent#manual-installation) instructions. Note that we have enabled a `/var/lib/redirectionio` volume, used to store [redirection.io agent's cache data](https://redirection.io/documentation/developer-documentation/agent-configuration-reference#datadir).

agent-as-reverse-proxy/docker-compose.yml

@@ -0,0 +1,22 @@
+version: '3'
+
+volumes:
+    redirectionio-agent-data: {}
+
+services:
+    redirectionio-agent:
+        build: services/redirectionio-agent
+        env_file: "../.env"
+        environment:
+            - INSTANCE_NAME=docker-reverse-proxy
+        ports:
+            - "8080:80"
+        volumes:
+            - redirectionio-agent-data:/var/lib/redirectionio
+
+    # this is the application backend service
+    # it can be any other HTTP service
+    nginx:
+        image: nginx
+        volumes:
+            - ../app:/usr/share/nginx/html

services/redirectionio-agent/Dockerfile …/services/redirectionio-agent/Dockerfileservices/redirectionio-agent/Dockerfile renamed to agent-as-reverse-proxy/services/redirectionio-agent/Dockerfile services/redirectionio-agent/Dockerfile renamed to agent-as-reverse-proxy/services/redirectionio-agent/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.12 as alpine
+FROM alpine:3.19 as alpine
 
 WORKDIR /tmp