diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..057edb5
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+cert
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..057edb5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+cert
diff --git a/Dockerfile b/Dockerfile
index 1a9cbd2..5366945 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,35 @@
-FROM ubuntu:latest
+#FROM ubuntu:latest
 
-RUN apt-get update && apt-get install -y git unzip sudo wget build-essential pkg-config
-RUN git clone https://github.com/kov-serg/get-cpcert.git && cd get-cpcert && chmod +x *.sh
-RUN cd /get-cpcert/ && ./prepare.sh
+#RUN apt-get update && apt-get install -y git unzip sudo wget build-essential pkg-config python3 python3-pip
+#RUN git clone https://github.com/kov-serg/get-cpcert.git && cd get-cpcert && chmod +x *.sh
+#RUN cd /get-cpcert/ && ./prepare.sh
 
-ENTRYPOINT ["bash"]
\ No newline at end of file
+FROM debian
+RUN apt-get update && apt-get install -y libengine-gost-openssl openssl nano mc git unzip sudo wget build-essential pkg-config python3 python3-pip
+
+ARG PREFIX="/etc/ssl"
+ARG ENGINES=/usr/lib/x86_64-linux-gnu/engines-3
+
+# Enable engine
+RUN sed -i '6i openssl_conf=openssl_def' ${PREFIX}/openssl.cnf \
+  && echo "" >>${PREFIX}/openssl.cnf \
+  && echo "# OpenSSL default section" >>${PREFIX}/openssl.cnf \
+  && echo "[openssl_def]" >>${PREFIX}/openssl.cnf \
+  && echo "engines = engine_section" >>${PREFIX}/openssl.cnf \
+  && echo "" >>${PREFIX}/openssl.cnf \
+  && echo "# Engine scetion" >>${PREFIX}/openssl.cnf \
+  && echo "[engine_section]" >>${PREFIX}/openssl.cnf \
+  && echo "gost = gost_section" >>${PREFIX}/openssl.cnf \
+  && echo "" >> ${PREFIX}/openssl.cnf \
+  && echo "# Engine gost section" >>${PREFIX}/openssl.cnf \
+  && echo "[gost_section]" >>${PREFIX}/openssl.cnf \
+  && echo "engine_id = gost" >>${PREFIX}/openssl.cnf \
+  && echo "dynamic_path = ${ENGINES}/gost.so" >>${PREFIX}/openssl.cnf \
+  && echo "default_algorithms = ALL" >>${PREFIX}/openssl.cnf \
+  && echo "CRYPT_PARAMS = id-Gost28147-89-CryptoPro-A-ParamSet" >>${PREFIX}/openssl.cnf
+
+
+ADD ./src /src
+RUN pip install -r /src/requirements.txt --break-system-packages
+
+ENTRYPOINT ["bash"]
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..52e479b
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,54 @@
+#!flask/bin/python
+import tempfile
+import os.path
+import base64
+import logging
+from flask import Flask, jsonify
+from flask import request
+
+app = Flask(__name__)
+certFile = "/app/cert/anna_export.crt"
+pemFile = "/app/cert/anna_export_pass_1234.pem"
+passwd = "1234"
+
+@app.route('/')
+def index():
+    return "Hello, World!"
+
+@app.route('/sign', methods=['POST'])
+def create_task():
+    if not request.json or not 'content' in request.json:
+        abort(400)
+    if not os.path.isfile(certFile):
+      return "No crt file exists", 500
+    if not os.path.isfile(pemFile):
+      return "No pem file exists", 500
+
+    temp_name = next(tempfile._get_candidate_names())
+    source_path = os.path.join(tempfile.mkdtemp(), temp_name)
+    result_path = "{}.sgn".format(source_path)
+
+    #logging.warning("request: {}".format(request.json))
+
+    decoded = base64.b64decode(request.json['content'])
+    with open(source_path, 'wb') as output_file:
+       output_file.write(decoded)
+
+    cmd = "openssl smime -sign -signer {} -inkey {} -engine gost -passin pass:{} -binary -noattr -outform DER -in {} -out {}".format(certFile, pemFile, passwd, source_path, result_path)
+    result = os.popen(cmd).read()
+
+    logging.warning('result file path is: {}'.format(result_path))
+    if not os.path.isfile(result_path):
+      return "No result file exists, somthing goes wrong...", 500
+
+    with open(result_path, "rb") as result_file:
+      result_json = base64.b64encode(result_file.read()).decode()
+    os.remove(result_path)
+
+    response = {
+        'signature': result_json
+    }
+    return jsonify(response), 200
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=80, debug=True)
diff --git a/src/requirements.txt b/src/requirements.txt
new file mode 100644
index 0000000..7e10602
--- /dev/null
+++ b/src/requirements.txt
@@ -0,0 +1 @@
+flask