add mastodon (decentralized social network service) initial configuration

mastodon/docker-compose.yml

@@ -0,0 +1,53 @@
+version: "3.9"
+
+services:
+
+  # https://hub.docker.com/r/linuxserver/mastodon
+  # https://sleeplessbeastie.eu/2022/05/02/how-to-take-advantage-of-docker-to-install-mastodon/
+
+  mastodon:
+    image: linuxserver/mastodon:4.1.0
+    container_name: mastodon
+    environment:
+      PUID: 1000
+      PGID: 1000
+      TZ: Etc/UTC
+      LOCAL_DOMAIN: example.com
+      REDIS_HOST: redis
+      REDIS_PORT: 6379
+      DB_HOST: db
+      DB_USER: mastodon
+      DB_NAME: mastodon
+      DB_PASS: mastodon
+      DB_PORT: 5432
+      ES_ENABLED: false
+      SECRET_KEY_BASE: 
+      OTP_SECRET: 
+      VAPID_PRIVATE_KEY: 
+      VAPID_PUBLIC_KEY: 
+      SMTP_SERVER: mail.example.com
+      SMTP_PORT: 25
+      SMTP_LOGIN: 
+      SMTP_PASSWORD: 
+      SMTP_FROM_ADDRESS: notifications@example.com
+      S3_ENABLED: false
+      # WEB_DOMAIN: mastodon.example.com #optional
+      # ES_HOST: es #optional
+      # ES_PORT: 9200 #optional
+      # ES_USER: elastic #optional
+      # ES_PASS: elastic #optional
+      # S3_BUCKET:  #optional
+      # AWS_ACCESS_KEY_ID:  #optional
+      # AWS_SECRET_ACCESS_KEY:  #optional
+      # S3_ALIAS_HOST:  #optional
+      # SIDEKIQ_ONLY: false #optional
+      # SIDEKIQ_QUEUE:  #optional
+      # SIDEKIQ_DEFAULT: false #optional
+      # SIDEKIQ_THREADS: 5 #optional
+      # DB_POOL: 5 #optional
+    volumes:
+      - ./volumes/mastodon/config:/config
+    ports:
+      - 80:80
+      - 443:443
+    restart: unless-stopped