[mercure-bundle] add support for Docker Compose

[dunglas]

Q	A
License	MIT
Doc issue/PR	todo

The native support for Mercure in Symfony CLI has been removed. This PR adds support for Docker Compose instead.

[github-actions]

Thanks for the PR 😍

How to test these changes in your application

1. Define the SYMFONY_ENDPOINT environment variable:

   # On *nix and Mac
   export SYMFONY_ENDPOINT=https://api.github.com/repos/symfony/recipes/contents/index.json?ref=flex/pull-1007
   # On Windows
   SET SYMFONY_ENDPOINT=https://api.github.com/repos/symfony/recipes/contents/index.json?ref=flex/pull-1007

2. Install the package(s) related to this recipe:

   composer req 'symfony/flex:^1.16'
   composer req 'symfony/mercure-bundle:^0.3'

3. Don't forget to unset the SYMFONY_ENDPOINT environment variable when done:

   # On *nix and Mac
   unset SYMFONY_ENDPOINT
   # On Windows
   SET SYMFONY_ENDPOINT=

Diff between recipe versions

In order to help with the review stage, I'm in charge of computing the diff between the various versions of patched recipes.
I'm going keep this comment up to date with any updates of the attached patch.

symfony/mercure-bundle

0.1 vs 0.2

diff --git a/symfony/mercure-bundle/0.1/config/packages/mercure.yaml b/symfony/mercure-bundle/0.2/config/packages/mercure.yaml
index d1947d1..17aaa0c 100644
--- a/symfony/mercure-bundle/0.1/config/packages/mercure.yaml
+++ b/symfony/mercure-bundle/0.2/config/packages/mercure.yaml
@@ -1,4 +1,5 @@
 mercure:
+    enable_profiler: '%kernel.debug%'
     hubs:
         default:
             url: '%env(MERCURE_PUBLISH_URL)%'

0.2 vs 0.3

diff --git a/symfony/mercure-bundle/0.2/config/packages/mercure.yaml b/symfony/mercure-bundle/0.3/config/packages/mercure.yaml
index 17aaa0c..f2a7395 100644
--- a/symfony/mercure-bundle/0.2/config/packages/mercure.yaml
+++ b/symfony/mercure-bundle/0.3/config/packages/mercure.yaml
@@ -1,6 +1,8 @@
 mercure:
-    enable_profiler: '%kernel.debug%'
     hubs:
         default:
-            url: '%env(MERCURE_PUBLISH_URL)%'
-            jwt: '%env(MERCURE_JWT_TOKEN)%'
+            url: '%env(MERCURE_URL)%'
+            public_url: '%env(MERCURE_PUBLIC_URL)%'
+            jwt:
+                secret: '%env(MERCURE_JWT_SECRET)%'
+                publish: '*'
diff --git a/symfony/mercure-bundle/0.2/manifest.json b/symfony/mercure-bundle/0.3/manifest.json
index ba8f74d..cd7eac5 100644
--- a/symfony/mercure-bundle/0.2/manifest.json
+++ b/symfony/mercure-bundle/0.3/manifest.json
@@ -7,9 +7,41 @@
     },
     "env": {
         "#1": "See https://symfony.com/doc/current/mercure.html#configuration",
-        "MERCURE_PUBLISH_URL": "http://mercure/.well-known/mercure",
-        "#2": "The default token is signed with the secret key: !ChangeMe!",
-        "MERCURE_JWT_TOKEN": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJtZXJjdXJlIjp7InB1Ymxpc2giOltdfX0.Oo0yg7y4yMa1vr_bziltxuTCqb8JVHKxp-f_FwwOim0"
+        "#2": "The URL of the Mercure hub, used by the app to publish updates (can be a local URL)",
+        "MERCURE_URL": "https://example.com/.well-known/mercure",
+        "#3": "The public URL of the Mercure hub, used by the browser to connect",
+        "MERCURE_PUBLIC_URL": "https://example.com/.well-known/mercure",
+        "#4": "The secret used to sign the JWTs",
+        "MERCURE_JWT_SECRET": "!ChangeMe!"
+    },
+    "docker-compose": {
+        "docker-compose.yml": {
+            "services": [
+                "mercure:",
+                "  image: dunglas/mercure",
+                "  restart: unless-stopped",
+                "  environment:",
+                "    SERVER_NAME: ':80'",
+                "    MERCURE_PUBLISHER_JWT_KEY: '!ChangeMe!'",
+                "    MERCURE_SUBSCRIBER_JWT_KEY: '!ChangeMe!'",
+                "    # Set the URL of your Symfony project (without trailing slash!) as value of the cors_origins directive",
+                "    MERCURE_EXTRA_DIRECTIVES: |",
+                "      cors_origins http://127.0.0.1:8000",
+                "  # Comment the following line to disable the development mode",
+                "  command: /usr/bin/caddy run -config /etc/caddy/Caddyfile.dev",
+                "  volumes:",
+                "    - mercure_data:/data",
+                "    - mercure_config:/config"
+            ],
+            "volumes": ["mercure_data:", "mercure_config:"]
+        },
+        "docker-compose.override.yml": {
+            "services": [
+                "mercure:",
+                "  ports:",
+                "    - \"80\""
+            ]
+        }
     },
     "aliases": ["mercure"]
 }