Hello all !

Following that post, I'm offering to noobs like me the opportunity to learn how to install Teddit with Docker.

Being a beginner myself, I don’t pretend to know the perfect or more appropriate way to achieve this, and I hope that more experienced people will join the conversation to correct and complete the informations I’m about to give.

Teddit is a free and open source alternative Reddit front-end focused on privacy.

#The config#

• First, let's say you want to have your persistent volume at /srv/path/Teddit/
• Create that volume. In it, create a config.js file.
• Paste this and edit the names of the subreddits you want to "follow":
  spoiler

const config = {
  domain: process.env.DOMAIN || '127.0.0.1', // Or for example 'teddit.net'
  use_reddit_oauth: process.env.USE_REDDIT_OAUTH === 'true' || false, // If false, teddit uses Reddit's public API. If true, you need to have your own Reddit app ID (enter the app ID to the "reddit_app_id" config key). 
  cert_dir: process.env.CERT_DIR || '', // For example '/home/teddit/letsencrypt/live/teddit.net', if you are using https. No trailing slash.
  theme: process.env.THEME || 'auto', // One of: 'dark', 'sepia', 'auto', ''. Auto theme uses browser's theme detection (Dark or White theme). White theme is set by the empty the option ('').
  clean_homepage: !('CLEAN_HOMEPAGE' in process.env) || process.env.CLEAN_HOMEPAGE === 'true', // Allows the clean homepage to be used (similar to invidious), instead of the usual reddit-like frontpage
  flairs_enabled: !('FLAIRS_ENABLED' in process.env) || process.env.FLAIRS_ENABLED === 'true', // Enables the rendering of user and link flairs on teddit
  highlight_controversial: !('HIGHLIGHT_CONTROVERSIAL' in process.env) || process.env.HIGHLIGHT_CONTROVERSIAL === 'true', // Enables controversial comments to be indicated by a typographical dagger (†)
  api_enabled: !('API_ENABLED' in process.env) || process.env.API_ENABLED === 'true', // Teddit API feature. Might increase loads significantly on your instance.
  api_force_https: process.env.API_FORCE_HTTPS === 'true' || false, // Force HTTPS to Teddit API permalinks (see #285).
  video_enabled: !('VIDEO_ENABLED' in process.env) || process.env.VIDEO_ENABLED === 'true',
  redis_enabled: !('REDIS_ENABLED' in process.env) || process.env.REDIS_ENABLED === 'true', // If disabled, does not cache Reddit API calls
  redis_db: process.env.REDIS_DB,
  redis_host: process.env.REDIS_HOST || '127.0.0.1',
  redis_password: process.env.REDIS_PASSWORD,
  redis_port: process.env.REDIS_PORT || 6379,
  ssl_port: process.env.SSL_PORT || 8088,
  nonssl_port: process.env.NONSSL_PORT || 8080,
  listen_address: process.env.LISTEN_ADDRESS || '0.0.0.0',  // '0.0.0.0' will accept connections only from IPv4 addresses. If you want to also accept IPv6 addresses use '::'.
  https_enabled: process.env.HTTPS_ENABLED === 'true' || false,
  redirect_http_to_https: process.env.REDIRECT_HTTP_TO_HTTPS === 'true' || false,
  redirect_www: process.env.REDIRECT_WWW === 'true' || false,
  use_compression: !('USE_COMPRESSION' in process.env) || process.env.USE_COMPRESSION === 'true',
  use_view_cache: process.env.USE_VIEW_CACHE === 'true' || false,
  use_helmet: process.env.USE_HELMET === 'true' || false, // Recommended to be true when using https
  use_helmet_hsts: process.env.USE_HELMET_HSTS === 'true' || false, // Recommended to be true when using https
  trust_proxy: process.env.TRUST_PROXY === 'true' || false, // Enable trust_proxy if you are using reverse proxy like nginx
  trust_proxy_address: process.env.TRUST_PROXY_ADDRESS || '127.0.0.1',
  http_proxy: process.env.HTTP_PROXY,
  nsfw_enabled: !('NSFW_ENABLED' in process.env) || process.env.NSFW_ENABLED === 'true', // Enable NSFW (over 18) content. If false, a warning is shown to the user before opening any NSFW post. When the NFSW content is disabled, NSFW posts are hidden from subreddits and from user page feeds. Note: Users can set this to true or false from their preferences.
  videos_muted: !('VIDEOS_MUTED' in process.env) || process.env.VIDEOS_MUTED === 'true', // Automatically mute all videos in posts
  post_comments_sort: process.env.POST_COMMENTS_SORT || 'confidence', // "confidence" is the default sorting in Reddit. Must be one of: confidence, top, new, controversial, old, random, qa, live.
  reddit_app_id: process.env.REDDIT_APP_ID || 'ABfYqdDc9qPh1w', // If "use_reddit_oauth" config key is set to true, you have to obtain your Reddit app ID. For testing purposes it's okay to use this project's default app ID. Create your Reddit app here: https://old.reddit.com/prefs/apps/. Make sure to create an "installed app" type of app.
  domain_replacements: process.env.DOMAIN_REPLACEMENTS
    ? (JSON.parse(process.env.DOMAIN_REPLACEMENTS).map(([p, r]) => [new RegExp(p, 'gm'), r]))
    : [], // Replacements for domains in outgoing links. Tuples with regular expressions to match, and replacement values. This is in addition to user-level configuration of privacyDomains.
  cache_control: !('CACHE_CONTROL' in process.env) || process.env.CACHE_CONTROL === 'true', // If true, teddit will automatically remove all cached static files. By default this is set to true.
  cache_control_interval: process.env.CACHE_CONTROL_INTERVAL || 24, // How often the cache directory for static files is emptied (in hours). Requires cache_control to be true. Default is every 24 hours.
  show_upvoted_percentage: !('SHOW_UPVOTED_PERCENTAGE' in process.env) || process.env.SHOW_UPVOTED_PERCENTAGE === 'true',
  show_upvotes: !('SHOW_UPVOTES' in process.env) || process.env.SHOW_UPVOTES === 'true', // If true, teddit will show number of upvotes in posts and points in comments.
  post_media_max_heights: {
    /**
    * Sets the max-height value for images and videos in posts.
    * Default is 'medium'.
    */
    'extra-small': 300,
    'small': 415,
    'medium': 600,
    'large': 850,
    'extra-large': 1200
  },
  setexs: {
    /**
    * Redis cache expiration values (in seconds).
    * When the cache expires, new content is fetched from Reddit's API (when
    * the given URL is revisited).
    */
    frontpage: 600,
    subreddit: 600,
    posts: 600,
    user: 600,
    searches: 600,
    sidebar: 60 * 60 * 24 * 7, // 7 days
    shorts: 60 * 60 * 24 * 31,
    wikis: 60 * 60 * 24 * 7,
    subreddits_explore: {
      front: 60 * 60 * 24 * 1,
      new_page: 60
    },
  },
  rate_limiting: {
    enabled: false,
    initial_limit: 100, // This is the amount of page loads one IP address can make in one minute without getting limited.
    limit_after_limited: 30 // When an IP is limited, this is the amount of page loads the IP can make in one minute.
  },
  valid_media_domains: process.env.VALID_MEDIA_DOMAINS
    ? JSON.parse(process.env.VALID_MEDIA_DOMAINS)
    : ['preview.redd.it', 'external-preview.redd.it', 'i.redd.it', 'v.redd.it', 'a.thumbs.redditmedia.com', 'b.thumbs.redditmedia.com', 'emoji.redditmedia.com', 'styles.redditmedia.com', 'www.redditstatic.com', 'thumbs.gfycat.com', 'i.ytimg.com', 'i.imgur.com'],
  valid_embed_video_domains: ['gfycat.com', 'youtube.com'],
  reddit_api_error_text: `Seems like your instance is either blocked (e.g. due to API rate limiting), reddit is currently down, or your API key is expired and not renewd properly. This can also happen for other reasons.`,
  /**
   * Here you can configure the suggested subreddits which are visible in the
   * cleaned homepage, and in the top bar.
   * You should keep at least 'All', and 'Saved'.
   *
   * If you set your configs with an environment variables for example with
   * docker-compose.yml, your suggested_subreddits config could be something
   * like this (note the quotes):
   * - SUGGESTED_SUBREDDITS=["Popular", "All", "Saved", "selfhosted", "linux", "datahoarder", "Monero"]
   * or
   * - 'SUGGESTED_SUBREDDITS=["Popular", "All", "Saved", "selfhosted", "linux", "datahoarder", "Monero"]'
   */
  suggested_subreddits: process.env.SUGGESTED_SUBREDDITS
                        ? JSON.parse(process.env.SUGGESTED_SUBREDDITS)
                        :
                        ['Popular', 'All', 'Saved', 'AskReddit', 'pics', 'news',
                        'worldnews', 'funny', 'tifu', 'videos', 'gaming', 'aww',
                        'todayilearned', 'gifs', 'Art', 'explainlikeimfive',
                        'movies', 'Jokes', 'TwoXChromosomes',
                        'mildlyinteresting', 'LifeProTips', 'askscience',
                        'IAmA', 'dataisbeautiful', 'books', 'science',
                        'Showerthoughts', 'gadgets', 'Futurology',
                        'nottheonion', 'history', 'sports', 'OldSchoolCool',
                        'GetMotivated', 'DIY', 'photoshopbattles', 'nosleep',
                        'Music', 'space', 'food', 'UpliftingNews', 'EarthPorn',
                        'Documentaries', 'InternetIsBeautiful',
                        'WritingPrompts', 'creepy', 'philosophy',
                        'announcements', 'listentothis', 'blog'],
};

module.exports = config;

#The stack#

Then, and as a noob, I recommend deploying this as a stack in Portainer:

version: "3.8"

services:

  teddit:
    container_name: teddit
    image: teddit/teddit:latest
    environment:
# uncomment if running behind a reverse proxy
    #  - DOMAIN=your domain.tld
    #  - USE_HELMET=true
    #  - USE_HELMET_HSTS=true
    #  - TRUST_PROXY=true
      - REDIS_HOST=teddit-redis
    ports:
      - "8080:8080"
    networks:
      - teddit_net
    healthcheck:
      test: ["CMD", "wget" ,"--no-verbose", "--tries=1", "--spider", "http://localhost:8080/about"]
      interval: 1m
      timeout: 3s
    depends_on:
      - teddit-redis
    volumes:
      - /srv/path/Teddit/config.js:/teddit/config.js

  teddit-redis:
    container_name: teddit-redis
    image: redis:6.2.5-alpine
    command: redis-server
    environment:
      - REDIS_REPLICATION_MODE=master
    networks:
      - teddit_net

networks:
  teddit_net:

You're set up. Enjoy the few niche subs you didn't find here on Lemmy and browse them with maximum privacy :)