ansible: Use our own ipify server and fallback to icanhazip if it fails

Author: saltydk

Diff for: ansible_facts.d/network.fact

@@ -2,8 +2,28 @@
 
 # https://github.com/mtecer/terraform/blob/master/bmc/files/ansible/custom.fact
 
-PUBLIC_IP=$(curl --connect-timeout 2.37 -s -4 https://ipv4.icanhazip.com)
-PUBLIC_IPv6=$(curl --connect-timeout 2.37 -s -6 https://ipv6.icanhazip.com)
+RES=$(curl -s -w "%{http_code}" --connect-timeout 2.37 -4 https://ipify.saltbox.dev)
+BODY=${RES::-3}
+STATUS=$(printf "%s" "$RES" | tail -c 3)
+if [[ "$STATUS" == 200 ]]; then
+    # Server returned 200 response
+    PUBLIC_IP=$BODY
+else
+    # Server didn't return 200 response, so falling back to icanhazip.com
+    PUBLIC_IP=$(curl --connect-timeout 2.37 -s -4 https://ipv4.icanhazip.com)
+fi
+
+RES6=$(curl -s -w "%{http_code}" --connect-timeout 2.37 -6 https://ipify6.saltbox.dev)
+BODY6=${RES6::-3}
+STATUS6=$(printf "%s" "$RES6" | tail -c 3)
+if [[ "$STATUS" == 200 ]]; then
+    # Server returned 200 response
+    PUBLIC_IPv6=$BODY6
+else
+    # Server didn't return 200 response, so falling back to icanhazip.com
+    PUBLIC_IPv6=$(curl --connect-timeout 2.37 -s -6 https://ipv6.icanhazip.com)
+fi
+
 echo "[ip]"
 echo "public_ip=${PUBLIC_IP}"
 echo "public_ipv6=${PUBLIC_IPv6}"