No instance found, despite ActivityPub being activated

[Deuchnord]

I'm configuring my new instance of Pixelfed and having some trouble on activating ActivityPub:

• I cannot access my posts from Mastodon

• I cannot mention my Mastodon account from my Pixelfed account

• On the admin panel/Instances, I'm having the following message:

  Warning
  No instances were found.

  If I click the Run scan button, the page reload without better results, Horizon does not report any new job, and no message is logged in the /storage/logs/laravel.log.

I'm running Pixelfed through the Docker-Compose configuration available in this repo.

docker-compose.override.yml

version: '3'

services:
  app:
    # Comment to use dockerhub image
    build:
      context: .
      dockerfile: contrib/docker/Dockerfile.apache
    image: pixelfed
    restart: unless-stopped
    env_file:
      - ./.env.docker
    volumes:
      - "app-storage:/var/www/storage"
      - "app-bootstrap:/var/www/bootstrap"
      - "./.env.docker:/var/www/.env"
    networks:
      - external
      - internal
    ports:
      - "8102:80"
    depends_on:
      - db
      - redis

  db:
    image: mysql:8.0
    restart: unless-stopped
    networks:
      - internal
    command: --default-authentication-plugin=mysql_native_password
    environment:
      - MYSQL_DATABASE=pixelfed
      - MYSQL_USER=pixelfed
      - MYSQL_PASSWORD=some-really-secured-password
      - MYSQL_RANDOM_ROOT_PASSWORD=true
    volumes:
      - "../data:/var/lib/mysql"

.env.docker file

## Crypto
APP_KEY=base64:...

## General Settings
APP_NAME="DeuchPix"
APP_ENV=production
APP_DEBUG=false
APP_URL=https://pix.deuchnord.fr
APP_DOMAIN="pix.deuchnord.fr"
ADMIN_DOMAIN="pix.deuchnord.fr"
SESSION_DOMAIN="pix.deuchnord.fr"

OPEN_REGISTRATION=false
ENFORCE_EMAIL_VERIFICATION=false
PF_MAX_USERS=1000
OAUTH_ENABLED=true

APP_TIMEZONE=UTC
APP_LOCALE=fr

## Pixelfed Tweaks
LIMIT_ACCOUNT_SIZE=true
MAX_ACCOUNT_SIZE=1000000
MAX_PHOTO_SIZE=15000
MAX_AVATAR_SIZE=2000
MAX_CAPTION_LENGTH=500
MAX_BIO_LENGTH=125
MAX_NAME_LENGTH=30
MAX_ALBUM_LENGTH=4
IMAGE_QUALITY=80
PF_OPTIMIZE_IMAGES=true
PF_OPTIMIZE_VIDEOS=true
ADMIN_ENV_EDITOR=false
ACCOUNT_DELETION=true
ACCOUNT_DELETE_AFTER=false
MAX_LINKS_PER_POST=0

## Instance
#INSTANCE_DESCRIPTION=
INSTANCE_PUBLIC_HASHTAGS=true
#INSTANCE_CONTACT_EMAIL=
INSTANCE_PUBLIC_LOCAL_TIMELINE=false
#BANNED_USERNAMES=
STORIES_ENABLED=true
RESTRICTED_INSTANCE=false

## Mail
MAIL_DRIVER=log
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_FROM_ADDRESS="pixelfed@example.com"
MAIL_FROM_NAME="Pixelfed"
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null

## Databases (MySQL)
DB_CONNECTION=mysql
DB_HOST=db
DB_PORT=3306
DB_DATABASE=pixelfed
DB_USERNAME=pixelfed
DB_PASSWORD=some-really-secured-password

## Databases (Postgres)
#DB_CONNECTION=pgsql
#DB_HOST=postgres
#DB_PORT=5432
#DB_DATABASE=pixelfed
#DB_USERNAME=postgres
#DB_PASSWORD=postgres

## Cache (Redis)
REDIS_CLIENT=phpredis
REDIS_SCHEME=tcp
REDIS_HOST=redis
REDIS_PASSWORD=null
REDIS_PORT=6379
REDIS_DATABASE=0

## EXPERIMENTS 
EXP_LC=false
EXP_REC=false
EXP_LOOPS=false

## ActivityPub Federation
ACTIVITY_PUB=true
AP_REMOTE_FOLLOW=true
AP_SHAREDINBOX=true
AP_INBOX=true
AP_OUTBOX=true
ATOM_FEEDS=true
NODEINFO=true
WEBFINGER=true

## S3
FILESYSTEM_DRIVER=local
FILESYSTEM_CLOUD=s3
PF_ENABLE_CLOUD=false
#AWS_ACCESS_KEY_ID=
#AWS_SECRET_ACCESS_KEY=
#AWS_DEFAULT_REGION=
#AWS_BUCKET=
#AWS_URL=
#AWS_ENDPOINT=
#AWS_USE_PATH_STYLE_ENDPOINT=false

## Horizon
HORIZON_DARKMODE=false

## COSTAR - Confirm Object Sentiment Transform and Reduce
PF_COSTAR_ENABLED=false

# Media
MEDIA_EXIF_DATABASE=false

## Logging
LOG_CHANNEL=stack

## Image
IMAGE_DRIVER=imagick

## Broadcasting
BROADCAST_DRIVER=log  # log driver for local development

## Cache
CACHE_DRIVER=redis

## Purify
RESTRICT_HTML_TYPES=true

## Queue
QUEUE_DRIVER=redis

## Session
SESSION_DRIVER=redis

## Trusted Proxy
TRUST_PROXIES="*"

## Passport
#PASSPORT_PRIVATE_KEY=
#PASSPORT_PUBLIC_KEY=

What am I missing?

[maxheadroom]

Have you checked your failed job stats in the Horizon Dashboard? I found an error with the job "InboxWorker"

Symfony\Component\Debug\Exception\FatalThrowableError:  syntax error, unexpected ')' in  /home/pixelfeed/pixelfed/app/Util/ActivityPub/Inbox.php:303
--
Stack trace:
#0 /home/pixelfeed/pixelfed/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/home/pixelfeed...')
#1 [internal function]: Composer\Autoload\ClassLoader->loadClass('App\\Util\\Activi...')

...

[Deuchnord]

Have you checked your failed job stats in the Horizon Dashboard?

I don't even have any recent jobs in Horizon Dashboard 🤔

[maxheadroom]

There was another bug reported that Horizon stops once you call php artisan cache:clean. Maybe check if your horizon is running or restart it with supervisord.

[Deuchnord]

I don't have supervisord, but it may be because I run Pixelfed through Docker. Anyway, php artisan horizon:status says that Horizon is running and I have some workers running:

php artisan horizon:supervisors

+--------------------------------+-----+---------+---------------------------------------------------+-----------+
| Name                           | PID | Status  | Workers                                           | Balancing |
+--------------------------------+-----+---------+---------------------------------------------------+-----------+
| 7d11b177e54f-rtfY:supervisor-1 | 17  | running | redis:high (1), redis:default (1), redis:feed (1) | auto      |
+--------------------------------+-----+---------+---------------------------------------------------+-----------+