Add docker

Dockerfile

@@ -0,0 +1,19 @@
+# start by pulling the python image
+FROM python:3.11.9-slim-bullseye
+
+# copy the requirements file into the image
+COPY ./requirements.txt /app/requirements.txt
+
+# switch working directory
+WORKDIR /app
+
+# install the dependencies and packages in the requirements file
+RUN pip install -r requirements.txt
+
+# copy every content from the local file to the image
+COPY . /app
+
+# configure the container to run in an executed manner
+ENTRYPOINT [ "python" ]
+
+CMD ["run.py", "--docker"]

README.md

@@ -107,6 +107,10 @@ For a list of code examples that use the Web Forms API, see the [How-to guides o
    **Note:** You will need to alias the python command to run Python 3 or use `python3 run.py`
 1. Open a browser to http://localhost:3000
 
+### Installation steps with docker
+1. `docker image build -t docusign .`
+1. `docker run --name docusign_python -p 3000:3000 -d docusign`
+
 ### Installation steps for JWT Grant authentication
 
 **Note:** If you downloaded this code using [Quickstart](https://developers.docusign.com/docs/esign-rest-api/quickstart/) from the Docusign Developer Center, skip step 4 as it was automatically performed for you.  

run.py

@@ -2,17 +2,20 @@
 from app import app
 from flask_session import Session
 import os
+import sys
+
+host = "0.0.0.0" if "--docker" in sys.argv else "localhost"
+port = int(os.environ.get("PORT", 3000))
 
 if os.environ.get("DEBUG", False) == "True":
     app.config["DEBUG"] = True
     app.config['SESSION_TYPE'] = 'filesystem'
     sess = Session()
     sess.init_app(app)
-    port = int(os.environ.get("PORT", 3000))
-    app.run(host="localhost", port=3000, debug=True)
+    app.run(host=host, port=port, debug=True)
 else:
     app.config['SESSION_TYPE'] = 'filesystem'
     sess = Session()
     sess.init_app(app)
-    app.run(host="localhost", port=3000, extra_files="api_type.py")
+    app.run(host=host, port=port, extra_files="api_type.py")