initial commit

.env-default

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+USER=""
+PASSWORD=""
+DOMAIN_UPDATE=""

.gitignore

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+.idea
+logs
+!logs/.gitkeep
+.env

docker-compose.yml

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+services:
+  cron:
+    image: registry.docker.rhost.ovh/updateip:0.0.2
+    platform: linux/x86_64
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: on-failure
+    command: >
+      bash -c "printenv > /etc/environment && cron -f"
+    volumes:
+      - ./project:/var/www/html
+      - ./logs/cron.log:/var/log/cron.log
+    environment:
+      USER: "${USER}"
+      PASSWORD: "${PASSWORD}"
+      DOMAIN_UPDATE: "${DOMAIN_UPDATE}"

project/test.php

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+<?php
+//if (!is_file("/etc/environment")) {
+//    exec("printenv > /etc/environment");
+//}
+echo date("Y-m-d H:i:s") . "    "  . PHP_EOL . $_ENV['USER'] . PHP_EOL . $_ENV['PASS'] . PHP_EOL;

project/updateip.php

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+<?php
+die();
+//
+///////////////////////////////////////
+/// its switch off to prevent fackup
+echo "_____________________________ \n";
+// old
+// https://www.duckdns.org/update?domains=rhost.duckdns.org&token=1b4ab267-b818-4407-8351-8800c6f4fd78
+$toUpdateString = $_ENV['DOMAIN_UPDATE'];
+$user = $_ENV['USER'];
+$pass = $_ENV['PASSWORD'];
+$dateUpdate = date("Y-m-d H:i:s");
+
+if (!$toUpdateString || !$user || !$pass) {
+    die("[$dateUpdate] Empty ENV data!!!!!!!!!!!");
+}
+$toUpdateArray = explode(",", $toUpdateString);
+$useragent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36';
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_URL, "http://rhostoh.cluster029.hosting.ovh.net/");
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
+curl_setopt($ch, CURLOPT_MAXREDIRS, 10 );
+$content = curl_exec($ch);
+if (curl_errno($ch)) {
+    echo "[$dateUpdate] Error:" . curl_error($ch);
+    $serverIp = false;
+} else {
+    $serverIp = $content;
+}
+curl_close($ch);
+
+if ($serverIp) {
+    foreach ($toUpdateArray as $toUpdate) {
+        $toUpdate = trim($toUpdate);
+        $currentIp = gethostbyname($toUpdate);
+        if ($currentIp == $serverIp) {
+            echo "[$dateUpdate] $toUpdate: same (not update)" . PHP_EOL;
+            continue;
+        }
+        $url = "https://dns.eu.ovhapis.com/nic/update?system=dyndns&hostname=$toUpdate&myip=$serverIp";
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+        curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
+        curl_setopt($ch, CURLOPT_USERPWD, "$user:$pass");
+        $response = curl_exec($ch);
+        echo "[$dateUpdate] $toUpdate: " . $response . PHP_EOL;
+        curl_close($ch);
+    }
+} else {
+    echo "[$dateUpdate] Server Error!!!!!!!!!!!!!" . PHP_EOL;
+}

service/Dockerfile

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+FROM php:8.2-cli
+
+ENV TZ=Europe/Warsaw
+
+COPY --chown=www-data ./project /var/www/html
+
+#cron
+RUN apt-get update && apt-get -y install cron
+COPY ./service/crontab /etc/cron.d/maincron
+RUN chmod 0644 /etc/cron.d/maincron
+RUN crontab /etc/cron.d/maincron
+RUN touch /var/log/cron.log
+

service/crontab

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+* * * * * /usr/local/bin/php /var/www/html/updateip.php >> /var/log/cron.log