computer-playbook/roles/web-app-fediwall/README.md

# Fediwall

## Description

**Fediwall** is a self-hosted *media wall* for the Fediverse: it follows hashtags or accounts on Mastodon-compatible servers and shows the most recent public posts in a screen-filling, self-updating masonry grid.

## Overview

Fediwall is a static, single-page web application with no backend, no database, and no user accounts. Configuration lives in a `wall-config.json` next to `index.html` and can be overridden per-visitor through URL parameters.

This role bakes the upstream release artefact into a small `nginx:alpine` image and supports **multiple walls per deployment**: every entry under [`meta/services.yml.fediwall.walls`](meta/services.yml) materializes as its own path under `https://fediwall.<DOMAIN_PRIMARY>/<slug>/` with its own baked-in `wall-config.json`. The root `/` shows a link list of all configured walls.

A wall's `config.servers` may be left empty to auto-fill with the active Mastodon-API-compatible Fediverse siblings (`web-app-mastodon`, `web-app-pixelfed`, `web-app-friendica`) that are present in the current host's `group_names`. Every other field of `wall-config.json` is read verbatim from the wall's `config` block.

## Cosmos

The diagram places Fediwall in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).

```mermaid
flowchart LR
    subgraph deps [Dependencies]
        dep_svc_net_tor["svc-net-tor 🐳🐝"]
        dep_web_app_dashboard["web-app-dashboard 🐳🐝"]
        dep_web_app_friendica["web-app-friendica 🐳🐝"]
        dep_web_app_keycloak["web-app-keycloak 🐳🐝"]
        dep_web_app_mastodon["web-app-mastodon 🐳🐝"]
        dep_web_app_matomo["web-app-matomo 🐳🐝"]
        dep_web_app_prometheus["web-app-prometheus 🐳🐝"]
        dep_web_app_stalwart["web-app-stalwart 🐳🐝"]
        dep_web_svc_css["web-svc-css 💻"]
    end
    subgraph role [web-app-fediwall 🐳🐝]
        svc_logout["logout ❌"]
        svc_dashboard["dashboard"]
        svc_matomo["matomo"]
        svc_css["css"]
        svc_email["email ❌"]
        svc_sso["sso ❌"]
        svc_prometheus["prometheus"]
        svc_mastodon["mastodon"]
        svc_friendica["friendica"]
        svc_fediwall["fediwall"]
        svc_tor["tor"]
    end
    dep_svc_net_tor -. "0..1" .-> svc_tor
    dep_web_app_dashboard -- "1:1" --> svc_dashboard
    dep_web_app_friendica -. "0..1" .-> svc_friendica
    dep_web_app_keycloak -- "0..0" --> svc_sso
    dep_web_app_mastodon -. "0..1" .-> svc_mastodon
    dep_web_app_matomo -- "1:1" --> svc_matomo
    dep_web_app_prometheus -- "1:1" --> svc_prometheus
    dep_web_app_stalwart -- "0..0" --> svc_email
    dep_web_svc_css -. "0..1" .-> svc_css
    linkStyle 3,7 stroke:red;
```

Solid `1:1` edges are fixed relationships; dashed `0..1` edges are conditional (enabled only in matching deployments); red `0..0` edges are turned off in this role. Node markers show the role's deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in `meta/main.yml`.

## Features

- **Follow hashtags, accounts, or trends** across multiple Mastodon-compatible servers.
- **Visually pleasing**, screen-filling masonry grid that scales from tablets to LED walls.
- **Dark mode** and customizable theme.
- **Privacy-friendly**: no server-side state, no tracking, all logic runs in the browser.
- **Live customization**: viewers can override every setting through URL parameters and bookmark or share their personalized wall.
- **Multi-wall**: declare multiple purpose-built walls (per event, hashtag, account set, …) under one deployment.

## Quick Setup

### Development

Clone, set up the workstation, and deploy Fediwall onto the local stack:

```bash
git clone https://github.com/infinito-nexus/core.git
cd core
make onboard
make compose-deploy mode=reinstall apps=web-app-fediwall full_cycle=false
```

### Production

Run the published image to provision the inventory and deploy Fediwall to a managed server (the mounted volume persists the inventory):

```bash
APP=web-app-fediwall
HOST=<your-server>
DOMAIN=<your-domain>
TLS_MODE=self_signed
SSH_PUBLIC_KEY="<your-ssh-public-key>"

docker run --rm -it \
  -v "$PWD/inventories:/etc/infinito.nexus/inventories" \
  -e APP="$APP" -e HOST="$HOST" -e DOMAIN="$DOMAIN" -e TLS_MODE="$TLS_MODE" -e SSH_PUBLIC_KEY="$SSH_PUBLIC_KEY" \
  ghcr.io/infinito-nexus/core/debian bash -c '
    INVENTORY=/etc/infinito.nexus/inventories/production
    infinito administration inventory provision "$INVENTORY" \
      --inventory-file "$INVENTORY/devices.yml" \
      --host "$HOST" \
      --include "$APP" \
      --vars "{\"TLS_MODE\": \"$TLS_MODE\", \"DOMAIN_PRIMARY\": \"$DOMAIN\", \"users\": {\"administrator\": {\"authorized_keys\": [\"$SSH_PUBLIC_KEY\"]}}}" &&
    infinito administration deploy dedicated "$INVENTORY/devices.yml" \
      --password-file "$INVENTORY/.password" \
      --diff -vv'
```

## Further Resources

- [Fediwall GitHub Repository](https://github.com/defnull/fediwall)
- [Public demo: fediwall.social](https://fediwall.social/)

## Persona contract opt-outs

Both authenticated Playwright personas are blocked. Fediwall is a read-only public wall: `meta/services.yml` pins `sso.enabled: false` and `logout.enabled: false`, and the container is a plain nginx image serving the pre-built upstream tarball. There is no account model, no login form and no logout control.

Wall content is baked at deploy time from `services.fediwall.walls`, so administration happens in Ansible rather than in an in-app admin panel. The persona-facing coverage this role does carry lives in the cross-fediverse scenarios that post on a Mastodon or Friendica sibling and assert the post appears on the wall.

## Credits

Implemented by **[Kevin Veen-Birkenbach](https://www.veen.world)**.
Part of the [Infinito.Nexus Project](https://s.infinito.nexus/code) and maintained by [Kevin Veen-Birkenbach](https://www.veen.world).
Licensed under the [Infinito.Nexus Community License (Non-Commercial)](https://s.infinito.nexus/license).