diff --git a/.github/workflows/docker-release.yml b/.github/workflows/container.yml
similarity index 75%
rename from .github/workflows/docker-release.yml
rename to .github/workflows/container.yml
index 4119b52..c63491f 100644
--- a/.github/workflows/docker-release.yml
+++ b/.github/workflows/container.yml
@@ -1,7 +1,12 @@
-name: 'docker'
+name: 'container'
 
 on:
   push:
+    branches:
+      - main
+    tags:
+      - '*'
+  workflow_dispatch:
 
 jobs:
   release:
@@ -17,6 +22,12 @@ jobs:
         uses: 1466587594/get-current-time@v1
         id: current-time
 
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_IMAGE }},ghcr.io/${{ github.repository }}
+
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with:
@@ -44,7 +55,6 @@ jobs:
           push: true
           build-args: |
             BUILD_DATE=${{ steps.current-time.outputs.time }}
+            VERSION=${{ github.ref_name }}
             VCS_REF=${{ env.GITHUB_SHA_SHORT }}
-          tags: |
-            ghcr.io/${{ github.repository }}:latest
-            ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_IMAGE }}:latest
+          tags: ${{ steps.meta.outputs.tags }}
diff --git a/Dockerfile b/Dockerfile
index 817e6d6..9d09f04 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,34 +1,30 @@
-FROM php:7-cli-alpine
+FROM php:8-cli-alpine
 
 ARG BUILD_DATE
 ARG VCS_REF
+ARG VERSION
 
-ENV SCHEDULE "*/10 * * * *"
+ENV SCHEDULE="*/10 * * * *" \
+    CRON_CMD="php /app/updater.php" \
+    DOMAIN="" \
+    MODE="@" \
+    IPV4="yes" \
+    IPV6="no" \
+    TTL="0" \
+    CUSTOMER_ID="" \
+    API_KEY="" \
+    API_PASSWORD="" \
+    FORCE="no"
 
-ENV DOMAIN ""
+ADD rootfs/ /
 
-ENV MODE "@"
+ENTRYPOINT ["/entrypoint.sh"]
 
-ENV IPV4 "yes"
-ENV IPV6 "no"
+CMD ["/usr/sbin/crond", "-f"]
 
-ENV TTL "0"
-
-ENV CUSTOMER_ID ""
-ENV API_KEY ""
-ENV API_PASSWORD ""
-
-ENV FORCE "no"
-
-RUN mkdir /app/
-
-ADD . /app/
-
-RUN echo "@reboot php /app/updater.php" > /etc/crontabs/root && \
-    echo "${SCHEDULE} php /app/updater.php" >> /etc/crontabs/root
-
-CMD ["/usr/sbin/crond", "-l", "2", "-f"]
+SHELL ["/bin/ash"]
 
 LABEL org.opencontainers.image.created=${BUILD_DATE} \
       org.opencontainers.image.revision=${VCS_REF} \
+      org.opencontainers.image.revision=${VERSION} \
       org.opencontainers.image.source="https://github.com/b2un0/docker-netcup-dyndns"
diff --git a/README.md b/README.md
index d48c7af..a9d7408 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Netcup DNS API DynDNS Docker Client
 
 ![Docker Pulls](https://img.shields.io/docker/pulls/b2un0/netcup-dyndns.svg)
-![Docker Build](https://github.com/b2un0/docker-netcup-dyndns/workflows/docker/badge.svg?branch=master&event=push)
+![Docker Build](https://github.com/b2un0/docker-netcup-dyndns/workflows/container/badge.svg?branch=master&event=push)
 ![MicroBadger Size](https://img.shields.io/docker/image-size/b2un0/netcup-dyndns.svg)
 
 ## Credits
diff --git a/src/Client.php b/rootfs/app/src/Client.php
similarity index 100%
rename from src/Client.php
rename to rootfs/app/src/Client.php
diff --git a/src/Config.php b/rootfs/app/src/Config.php
similarity index 100%
rename from src/Config.php
rename to rootfs/app/src/Config.php
diff --git a/src/DynDNS.php b/rootfs/app/src/DynDNS.php
similarity index 100%
rename from src/DynDNS.php
rename to rootfs/app/src/DynDNS.php
diff --git a/updater.php b/rootfs/app/updater.php
similarity index 84%
rename from updater.php
rename to rootfs/app/updater.php
index 7ef81aa..33dd17b 100755
--- a/updater.php
+++ b/rootfs/app/updater.php
@@ -9,13 +9,13 @@
 require_once __DIR__ . '/src/Config.php';
 
 if ('yes' === $_ENV['IPV4']) {
-    $ipv4 = trim(file_get_contents('https://v4.ident.me'));
+    $ipv4 = trim(file_get_contents('http://v4.ident.me'));
 } else {
     $ipv4 = null;
 }
 
 if ('yes' === $_ENV['IPV6']) {
-    $ipv6 = trim(file_get_contents('https://v6.ident.me'));
+    $ipv6 = trim(file_get_contents('http://v6.ident.me'));
 } else {
     $ipv6 = null;
 }
diff --git a/rootfs/entrypoint.sh b/rootfs/entrypoint.sh
new file mode 100755
index 0000000..6dc3a31
--- /dev/null
+++ b/rootfs/entrypoint.sh
@@ -0,0 +1,12 @@
+#!/bin/ash -e
+
+echo "startup $0"
+
+if [ ! -z "${SCHEDULE}" ] &&  [ ! -z "${CRON_CMD}" ]; then
+  echo "configure cron: ${SCHEDULE} ${CRON_CMD}"
+  echo "@reboot ${CRON_CMD}" > /etc/crontabs/root
+  echo "${SCHEDULE} ${CRON_CMD}" >> /etc/crontabs/root
+fi
+
+echo "run: $@"
+exec "$@"