diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..30b9804
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,23 @@
+FROM alpine
+LABEL \
+	maintainer="Davide Alberani <da@erlug.linux.it>"
+
+RUN \
+	apk add --no-cache \
+		python3 \
+		py3-cffi \
+		py3-six \
+		py3-requests \
+		py3-tz \
+		py3-dateutil \
+		py3-decorator \
+		py3-cryptography && \
+	pip3 install Mastodon.py
+COPY cthulhusay.py mastodon-cthulhusay.py /
+RUN chmod +x /mastodon-cthulhusay.py
+
+WORKDIR /
+
+ENTRYPOINT ["python3", "/mastodon-cthulhusay.py"]
+
+
diff --git a/mastodon-cthulhusay.py b/mastodon-cthulhusay.py
new file mode 100755
index 0000000..75fa3fe
--- /dev/null
+++ b/mastodon-cthulhusay.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+import random
+import cthulhusay
+from mastodon import Mastodon
+
+API_URL = 'https://botsin.space/'
+
+sys.stdout = open(sys.stdout.fileno(), mode='w', encoding='utf8', buffering=1)
+
+
+def get_words_of_cthulhu():
+    return cthulhusay.cthulhu_say(words=random.randint(1, 25))
+
+
+def serve(token):
+    words_of_cthulhu = get_words_of_cthulhu()
+    print('serving:\n%s' % words_of_cthulhu)
+    mastodon = Mastodon(access_token=token, api_base_url=API_URL)
+    mastodon.status_post(words_of_cthulhu)
+
+
+if __name__ == '__main__':
+    if 'CTHULHUBOT_TOKEN' not in os.environ:
+        print("Please specify the Mastodon token in the CTHULHUBOT_TOKEN environment variable")
+        sys.exit(1)
+    serve(token=os.environ['CTHULHUBOT_TOKEN'])