Add Spotify to Plex add-on

New add-on wrapping the upstream jjdenhertog/spotify-to-plex Docker image
(requested in issue #2814). Keeps Spotify playlists synced to Plex.

- Wraps the multi-arch upstream image via BUILD_FROM (amd64 + aarch64)
- Uses the shared ha_entrypoint framework with 00-global_var.sh so add-on
  options (Spotify credentials, redirect URI, encryption key) become the
  environment variables the app expects
- 99-run.sh persists /app/config into the add-on config dir, auto-generates
  and stores a stable ENCRYPTION_KEY when left blank, then hands off to the
  upstream supervisord
- Web UI exposed directly on port 9030

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NZTfSk3GQRU7oD85TnjsmW

spotify_to_plex/CHANGELOG.md

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+## 1.0.104 (2026-07-06)
+- Initial release: Spotify to Plex add-on based on jjdenhertog/spotify-to-plex

spotify_to_plex/Dockerfile

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+#============================#
+#  ALEXBELGIUM'S DOCKERFILE  #
+#============================#
+#           _.------.
+#       _.-`    ('>.-`"""-.
+# '.--'`       _'`   _ .--.)
+#    -'         '-.-';`   `
+#    ' -      _.'  ``'--.
+#        '---`    .-'""`
+#               /`
+#=== Home Assistant Addon ===#
+
+#################
+# 1 Build Image #
+#################
+
+ARG BUILD_FROM
+
+FROM ${BUILD_FROM}
+
+##################
+# 2 Modify Image #
+##################
+
+# Set S6 wait time
+ENV S6_CMD_WAIT_FOR_SERVICES=1 \
+    S6_CMD_WAIT_FOR_SERVICES_MAXTIME=0 \
+    S6_SERVICES_GRACETIME=0
+
+USER root
+
+##################
+# 3 Install apps #
+##################
+
+# Copy local files
+COPY rootfs/ /
+RUN find . -type f \( -name "*.sh" -o -name "run" -o -name "finish" \) -print -exec chmod +x {} \;
+
+# Uses /bin for compatibility purposes
+# hadolint ignore=DL4005
+RUN if [ ! -f /bin/sh ] && [ -f /usr/bin/sh ]; then ln -s /usr/bin/sh /bin/sh; fi && \
+    if [ ! -f /bin/bash ] && [ -f /usr/bin/bash ]; then ln -s /usr/bin/bash /bin/bash; fi
+
+# Modules
+ARG MODULES="00-banner.sh 00-global_var.sh 01-custom_script.sh"
+
+# Automatic modules download
+COPY ha_automodules.sh /ha_automodules.sh
+RUN chmod 744 /ha_automodules.sh && /ha_automodules.sh "$MODULES" && rm /ha_automodules.sh
+
+# Manual apps
+ENV PACKAGES="jq"
+
+# Automatic apps & bashio
+COPY ha_autoapps.sh /ha_autoapps.sh
+RUN chmod 744 /ha_autoapps.sh && /ha_autoapps.sh "$PACKAGES" && rm /ha_autoapps.sh
+
+EXPOSE 9030
+
+################
+# 4 Entrypoint #
+################
+
+# Add entrypoint
+ENV S6_STAGE2_HOOK=/ha_entrypoint.sh
+COPY ha_entrypoint.sh /ha_entrypoint.sh
+RUN chmod 777 /ha_entrypoint.sh
+
+# Install bashio
+COPY bashio-standalone.sh /usr/local/lib/bashio-standalone.sh
+RUN chmod 0755 /usr/local/lib/bashio-standalone.sh
+
+ENTRYPOINT [ "/usr/bin/env" ]
+CMD [ "/ha_entrypoint.sh" ]
+
+############
+# 5 Labels #
+############
+
+ARG BUILD_ARCH
+ARG BUILD_DATE
+ARG BUILD_DESCRIPTION
+ARG BUILD_NAME
+ARG BUILD_REF
+ARG BUILD_REPOSITORY
+ARG BUILD_VERSION
+ENV BUILD_VERSION="${BUILD_VERSION}"
+LABEL \
+    io.hass.name="${BUILD_NAME}" \
+    io.hass.description="${BUILD_DESCRIPTION}" \
+    io.hass.arch="${BUILD_ARCH}" \
+    io.hass.type="addon" \
+    io.hass.version=${BUILD_VERSION} \
+    maintainer="alexbelgium (https://github.com/alexbelgium)" \
+    org.opencontainers.image.title="${BUILD_NAME}" \
+    org.opencontainers.image.description="${BUILD_DESCRIPTION}" \
+    org.opencontainers.image.vendor="Home Assistant Add-ons" \
+    org.opencontainers.image.authors="alexbelgium (https://github.com/alexbelgium)" \
+    org.opencontainers.image.licenses="MIT" \
+    org.opencontainers.image.url="https://github.com/alexbelgium" \
+    org.opencontainers.image.source="https://github.com/${BUILD_REPOSITORY}" \
+    org.opencontainers.image.documentation="https://github.com/${BUILD_REPOSITORY}/blob/main/README.md" \
+    org.opencontainers.image.created=${BUILD_DATE} \
+    org.opencontainers.image.revision=${BUILD_REF} \
+    org.opencontainers.image.version=${BUILD_VERSION}
+
+#################
+# 6 Healthcheck #
+#################
+
+# Avoid spamming logs
+# hadolint ignore=SC2016
+RUN \
+    # Handle Apache configuration
+    if [ -d /etc/apache2/sites-available ]; then \
+        for file in /etc/apache2/sites-*/*.conf; do \
+            sed -i '/<VirtualHost/a \ \n    # Match requests with the custom User-Agent "HealthCheck" \n    SetEnvIf User-Agent "HealthCheck" dontlog \n    # Exclude matching requests from access logs \n    CustomLog ${APACHE_LOG_DIR}/access.log combined env=!dontlog' "$file"; \
+        done; \
+    fi && \
+    \
+    # Handle Nginx configuration
+    if [ -f /etc/nginx/nginx.conf ]; then \
+        awk '/http \{/{print; print "map $http_user_agent $dontlog {\n  default 0;\n  \"~*HealthCheck\" 1;\n}\naccess_log /var/log/nginx/access.log combined if=$dontlog;"; next}1' /etc/nginx/nginx.conf > /etc/nginx/nginx.conf.new && \
+        mv /etc/nginx/nginx.conf.new /etc/nginx/nginx.conf; \
+    fi
+
+ENV HEALTH_PORT="9030" \
+    HEALTH_URL=""
+HEALTHCHECK \
+    --interval=5s \
+    --retries=5 \
+    --start-period=30s \
+    --timeout=25s \
+    CMD curl -A "HealthCheck: Docker/1.0" -s -f "http://127.0.0.1:${HEALTH_PORT}${HEALTH_URL}" &>/dev/null || exit 1

spotify_to_plex/README.md

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+# Home assistant add-on: Spotify to Plex
+
+
+I maintain this and other Home Assistant add-ons in my free time: keeping up with upstream changes, HA changes, and testing on real hardware takes a lot of time (and some money). I use around 5-10 of my >110 addons so regularly I install test machines (and purchase some test services such as vpn) that I don't use myself to troubleshoot and improve the addons
+
+If this add-on saves you time or makes your setup easier, I would be very grateful for your support!
+
+[![Buy me a coffee][donation-badge]](https://www.buymeacoffee.com/alexbelgium)
+[![Donate via PayPal][paypal-badge]](https://www.paypal.com/donate/?hosted_button_id=DZFULJZTP3UQA)
+
+## Addon informations
+
+![Version](https://img.shields.io/badge/dynamic/yaml?label=Version&query=%24.version&url=https%3A%2F%2Fraw.githubusercontent.com%2Falexbelgium%2Fhassio-addons%2Fmaster%2Fspotify_to_plex%2Fconfig.yaml)
+![Ingress](https://img.shields.io/badge/dynamic/yaml?label=Ingress&query=%24.ingress&url=https%3A%2F%2Fraw.githubusercontent.com%2Falexbelgium%2Fhassio-addons%2Fmaster%2Fspotify_to_plex%2Fconfig.yaml)
+![Arch](https://img.shields.io/badge/dynamic/yaml?color=success&label=Arch&query=%24.arch&url=https%3A%2F%2Fraw.githubusercontent.com%2Falexbelgium%2Fhassio-addons%2Fmaster%2Fspotify_to_plex%2Fconfig.yaml)
+
+[![Codacy Badge](https://app.codacy.com/project/badge/Grade/9c6cf10bdbba45ecb202d7f579b5be0e)](https://www.codacy.com/gh/alexbelgium/hassio-addons/dashboard?utm_source=github.com&utm_medium=referral&utm_content=alexbelgium/hassio-addons&utm_campaign=Badge_Grade)
+[![GitHub Super-Linter](https://img.shields.io/github/actions/workflow/status/alexbelgium/hassio-addons/weekly-supelinter.yaml?label=Lint%20code%20base)](https://github.com/alexbelgium/hassio-addons/actions/workflows/weekly-supelinter.yaml)
+[![Builder](https://img.shields.io/github/actions/workflow/status/alexbelgium/hassio-addons/onpush_builder.yaml?label=Builder)](https://github.com/alexbelgium/hassio-addons/actions/workflows/onpush_builder.yaml)
+
+[donation-badge]: https://img.shields.io/badge/Buy%20me%20a%20coffee-%23d32f2f?logo=buy-me-a-coffee&style=flat&logoColor=white
+[paypal-badge]: https://img.shields.io/badge/Buy%20me%20a%20coffee%20Paypal-%23d32f2f?logo=buy-me-a-coffee&style=flat&logoColor=white
+
+_Thanks to everyone having starred my repo! To star it click on the image below, then it will be on top right. Thanks!_
+
+[![Stargazers repo roster for @alexbelgium/hassio-addons](https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.github/stars2.svg)](https://github.com/alexbelgium/hassio-addons/stargazers)
+
+## About
+
+This addon is based on the [docker image](https://hub.docker.com/r/jjdenhertog/spotify-to-plex) from [jjdenhertog/spotify-to-plex](https://github.com/jjdenhertog/spotify-to-plex).
+
+It keeps your Spotify playlists synced to Plex automatically: syncing any Spotify playlist (including Spotify-owned ones), supporting multiple Spotify users, scheduled automatic synchronization, smart caching and optional downloading of missing tracks via Lidarr, SLSKD or Tidal.
+
+## Configuration
+
+Before starting the add-on you need a Spotify developer application (https://developer.spotify.com/dashboard):
+
+1. Create an app and note its `Client ID` and `Client Secret`.
+1. In the app settings, add the redirect URI `https://jjdenhertog.github.io/spotify-to-plex/callback.html` (this is the default `SPOTIFY_API_REDIRECT_URI`; change it only if you self-host the callback page).
+
+Fill the add-on options:
+
+| Option | Description |
+|--------|-------------|
+| `SPOTIFY_API_CLIENT_ID` | Client ID of your Spotify developer application |
+| `SPOTIFY_API_CLIENT_SECRET` | Client secret of your Spotify developer application |
+| `SPOTIFY_API_REDIRECT_URI` | OAuth redirect URI (must match the one configured in your Spotify app) |
+| `ENCRYPTION_KEY` | Key used to encrypt stored secrets. **Leave empty** to have the add-on generate a random key on first start and persist it in the add-on config folder. Provide your own only if you want to reuse an existing configuration. |
+
+Use the add-on `env_vars` option to pass any extra upstream environment variables (for example Tidal, SLSKD, Lidarr or Plex settings). See https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon-2 for details.
+
+The configuration and cache are stored in the add-on config folder (`/addon_configs/<slug>`), so they survive restarts and updates.
+
+Webui can be found at `<your-ip>:9030`.
+
+## Installation
+
+The installation of this add-on is pretty straightforward and not different in
+comparison to installing any other Hass.io add-on.
+
+1. Add my add-ons repository to your home assistant instance (in supervisor addons store at top right, or click button below if you have configured my HA)
+   [![Open your Home Assistant instance and show the add add-on repository dialog with a specific repository URL pre-filled.](https://my.home-assistant.io/badges/supervisor_add_addon_repository.svg)](https://my.home-assistant.io/redirect/supervisor_add_addon_repository/?repository_url=https%3A%2F%2Fgithub.com%2Falexbelgium%2Fhassio-addons)
+1. Install this add-on.
+1. Set the required options (Spotify Client ID and Secret).
+1. Click the `Save` button to store your configuration.
+1. Start the add-on.
+1. Check the logs of the add-on to see if everything went well.
+1. Open the webui, where you will finish the setup and connect your Spotify and Plex accounts.
+
+## Support
+
+For issues related to the add-on packaging, open an issue on [alexbelgium/hassio-addons](https://github.com/alexbelgium/hassio-addons/issues).
+For issues related to the application itself, refer to the [upstream project](https://github.com/jjdenhertog/spotify-to-plex).
+
+[repository]: https://github.com/alexbelgium/hassio-addons

spotify_to_plex/build.json

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+{
+  "build_from": {
+    "aarch64": "jjdenhertog/spotify-to-plex:1.0.104",
+    "amd64": "jjdenhertog/spotify-to-plex:1.0.104"
+  }
+}

spotify_to_plex/config.yaml

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+arch:
+  - amd64
+  - aarch64
+description: Sync Spotify playlists to Plex
+environment:
+  STORAGE_DIR: /config
+image: ghcr.io/alexbelgium/spotify_to_plex-{arch}
+init: false
+map:
+  - addon_config:rw
+name: Spotify to Plex
+options:
+  env_vars: []
+  SPOTIFY_API_CLIENT_ID: ""
+  SPOTIFY_API_CLIENT_SECRET: ""
+  SPOTIFY_API_REDIRECT_URI: "https://jjdenhertog.github.io/spotify-to-plex/callback.html"
+  ENCRYPTION_KEY: ""
+panel_icon: mdi:spotify
+ports:
+  9030/tcp: 9030
+ports_description:
+  9030/tcp: Web interface
+schema:
+  env_vars:
+    - name: match(^[A-Za-z0-9_]+$)
+      value: str?
+  SPOTIFY_API_CLIENT_ID: str?
+  SPOTIFY_API_CLIENT_SECRET: str?
+  SPOTIFY_API_REDIRECT_URI: str?
+  ENCRYPTION_KEY: str?
+slug: spotify_to_plex
+url: https://github.com/alexbelgium/hassio-addons/tree/master/spotify_to_plex
+version: "1.0.104"
+webui: "http://[HOST]:[PORT:9030]"

spotify_to_plex/rootfs/etc/cont-init.d/99-run.sh

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+#!/usr/bin/env bashio
+# shellcheck shell=bash
+
+bashio::log.info "Starting Spotify to Plex"
+
+# Persist the app's /app/config into the HA add-on config dir (/config)
+CONFIG_TARGET="/config"
+mkdir -p "$CONFIG_TARGET"
+if [ -d /app/config ] && [ ! -L /app/config ]; then
+    cp -rn /app/config/. "$CONFIG_TARGET/" 2> /dev/null || true
+    rm -rf /app/config
+fi
+ln -sfn "$CONFIG_TARGET" /app/config
+
+# Auto-generate a persistent ENCRYPTION_KEY when the user leaves it blank
+if [ -z "${ENCRYPTION_KEY:-}" ]; then
+    if [ -f "$CONFIG_TARGET/.encryption_key" ]; then
+        ENCRYPTION_KEY="$(cat "$CONFIG_TARGET/.encryption_key")"
+    else
+        ENCRYPTION_KEY="$(head -c 32 /dev/urandom | base64)"
+        echo "$ENCRYPTION_KEY" > "$CONFIG_TARGET/.encryption_key"
+        bashio::log.info "Generated a new ENCRYPTION_KEY (stored in the add-on config dir)"
+    fi
+    export ENCRYPTION_KEY
+fi
+
+# Hand off to the upstream supervisord (web + scraper + scheduler)
+cd /app || true
+exec /docker-entrypoint.sh supervisord -n -c /etc/supervisor/conf.d/supervisord.conf

spotify_to_plex/updater.json

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+{
+  "last_update": "2026-07-06",
+  "repository": "alexbelgium/hassio-addons",
+  "slug": "spotify_to_plex",
+  "source": "dockerhub",
+  "upstream_repo": "jjdenhertog/spotify-to-plex",
+  "upstream_version": "1.0.104"
+}