add automatic ipv6 support

linuxserver · Jun 16, 2023 · c34d0b0 · c34d0b0
1 parent 5cb141e
commit c34d0b0
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/readme-vars.yml b/readme-vars.yml
@@ -39,6 +39,8 @@ cap_add_param_vars: ""
 # optional container parameters
 opt_param_usage_include_env: true
 opt_param_env_vars:
+  - { env_var: "UPDATE_BOTH", env_value: "false", desc: "Set to `true` to update IPv4 and IPv6 address. NB: use only if you have a public IPv6 address."}
+  - { env_var: "FORCE_IPV6", env_value: "false", desc: "Set to `true` to update IP **only** with your public IPv6 address. NB: use only if you have a public IPv6 address."}
   - { env_var: "LOG_FILE", env_value: "false", desc: "Set to `true` to log to file (also need to map /config)."}
 opt_param_usage_include_vols: true
 opt_param_volumes:

diff --git a/root/app/duck.sh b/root/app/duck.sh
@@ -11,7 +11,17 @@ else
 fi
 
 {
-    RESPONSE=$(curl -sS --max-time 60 "https://www.duckdns.org/update?domains=${SUBDOMAINS}&token=${TOKEN}&ip=")
+    if [ "${UPDATE_BOTH}" = "true" ]; then
+        IPV4=$(curl -sS4 "https://ipconfig.io")
+        IPV6=$(curl -sS6 "https://ipconfig.io")
+        RESPONSE=$(curl -sS --max-time 60 "https://www.duckdns.org/update?domains=${SUBDOMAINS}&token=${TOKEN}&ip=${IPV4}&ipv6=${IPV6}")
+    elif [ "${FORCE_IPV6}" = "true" ]; then
+        IPV6=$(curl -sS6 "https://ipconfig.io")
+        RESPONSE=$(curl -sS --max-time 60 "https://www.duckdns.org/update?domains=${SUBDOMAINS}&token=${TOKEN}&ip=${IPV6}")
+    else
+        RESPONSE=$(curl -sS --max-time 60 "https://www.duckdns.org/update?domains=${SUBDOMAINS}&token=${TOKEN}&ip=")
+    fi
+
     if [ "${RESPONSE}" = "OK" ]; then
         echo "Your IP was updated at $(date)"
     else