Merge branch 'apollo-sturdy-app/duckdns'

apps/duckdns/config.json

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+{
+  "name": "Duck DNS",
+  "available": true,
+  "port": 8026,
+  "exposable": false,
+  "id": "duckdns",
+  "description": "Duck DNS is a free service which will point a DNS (sub domains of duckdns.org) to an IP of your choice",
+  "tipi_version": 1,
+  "no_gui": true,
+  "version": "b14c520a-ls8",
+  "categories": ["network"],
+  "short_desc": "Duck DNS is a free Dynamic DNS service",
+  "author": "linuxserver.io",
+  "source": "https://github.com/linuxserver/docker-duckdns",
+  "website": "https://docs.linuxserver.io/images/docker-duckdns/",
+  "supported_architectures": ["arm64", "amd64"],
+  "form_fields": [
+    {
+      "type": "text",
+      "label": "Subdomains (comma separated). E.g. `mydomain1,mydomain2`.",
+      "max": 1024,
+      "min": 3,
+      "required": true,
+      "env_variable": "DUCKDNS_SUBDOMAINS"
+    },
+    {
+      "type": "password",
+      "label": "DuckDNS Token",
+      "max": 128,
+      "min": 3,
+      "required": true,
+      "env_variable": "DUCKDNS_TOKEN"
+    },
+    {
+      "type": "text",
+      "label": "Update IP (blank, ipv4, ipv6 or both). Setting this value uses external Cloudflare whoami service. Omitting the field uses DuckDNS for detection and only supports IPv4.",
+      "required": false,
+      "env_variable": "DUCKDNS_UPDATE_IP"
+    },
+    {
+      "type": "boolean",
+      "label": "Enable logging",
+      "required": false,
+      "env_variable": "DUCKDNS_ENABLE_LOG_FILE"
+    }
+  ]
+}

apps/duckdns/docker-compose.yml

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+version: '3.9'
+services:
+  duckdns:
+    container_name: duckdns # Should be exact same name as "id" field in config.json
+    image: lscr.io/linuxserver/duckdns:b14c520a-ls8 # Try to avoid "latest" tag. As it may break configs in the future.
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=${TZ}
+      - SUBDOMAINS=${DUCKDNS_SUBDOMAINS}
+      - TOKEN=${DUCKDNS_TOKEN}
+      - UPDATE_IP=${DUCKDNS_UPDATE_IP}
+      - LOG_FILE=${DUCKDNS_ENABLE_LOG_FILE}
+    volumes:
+      - ${APP_DATA_DIR}/data/config:/config
+    restart: unless-stopped
+    networks:
+      - tipi_main_network

apps/duckdns/metadata/description.md

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+# DuckDNS
+
+[Duckdns](https://duckdns.org/) is a free service which will point a DNS (sub domains of duckdns.org) to an IP of your choice. The service is completely free, and doesn't require reactivation or forum posts to maintain its existence.
+
+## Application Setup
+
+- Go to the [duckdns website](https://duckdns.org/), register your subdomain(s) and retrieve your token
+- Create a container with your subdomain(s) and token. If you own user.duckdns.org, you put `SUBDOMAINS=user` you would NOT put a sub subdomain like overseerr from overseerr.user.ducksdns.org
+- It will update your IP with the DuckDNS service every 5 minutes (with a random jitter)
+
+## Notice regarding automatic detection
+
+Using the `UPDATE_IP` variable whatever its value (`ipv4`, `ipv6` or `both`) uses external _Cloudflare whoami_ service to detect public IP addresses.
+**Be aware that using this variable will query a third-party service other than DuckDNS.**
+
+Omitting the `UPDATE_IP` variable uses DuckDNS for detection and only supports IPv4.