diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..25afd86
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM alpine:latest
+
+RUN apk add --no-cache bash curl py-pip
+
+COPY . /ausweisstatus
+WORKDIR /ausweisstatus
+
+RUN python3 -m venv .venv
+RUN source .venv/bin/activate && pip3 install -r requirements.txt
+
+COPY crontab /etc/crontabs/root
+
+CMD ["crond", "-f"]
diff --git a/crontab b/crontab
new file mode 100644
index 0000000..12e02cf
--- /dev/null
+++ b/crontab
@@ -0,0 +1,2 @@
+* * * * * cd /ausweisstatus && WEBHOOK_URL="url_here" ./notify.sh P L7AAAAAAAA 01.01.1970 >> /var/log/L7 2>&1
+* * * * * cd /ausweisstatus && WEBHOOK_URL="url_here" ./notify.sh R C7AAAAAAAA 01.01.1970 >> /var/log/C7 2>&1
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..237852b
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,5 @@
+---
+services:
+  ausweisstatus:
+    container_name: ausweisstatus
+    build: .
diff --git a/notify.sh b/notify.sh
index 95d8d87..d7882d6 100755
--- a/notify.sh
+++ b/notify.sh
@@ -4,8 +4,7 @@
 # status has changed since the last execution
 
 # Usage: ./notify.sh <P|R|ID> <Seriennummer> <Geburtsdatum>
-
-WEBHOOK_URL=""
+# also set WEBHOOK_URL env var
 
 notify() {
     message="New status for $2 ($3): $1"
@@ -31,6 +30,8 @@ if [[ -e ./cache/"$2" ]]; then
     else
         echo "No status change for $2"
     fi
+else
+    echo "No previous state found, caching current status for $2"
 fi
 
 mkdir -p ./cache