diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/.dockerignore b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/.dockerignore
new file mode 100644
index 00000000..c18dd8d8
--- /dev/null
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/.dockerignore
@@ -0,0 +1 @@
+__pycache__/
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/Dockerfile.{{cookiecutter.PROJECT_NAME_SLUG}} b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/Dockerfile.{{cookiecutter.PROJECT_NAME_SLUG}}
index 314b663c..524dc069 100644
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/Dockerfile.{{cookiecutter.PROJECT_NAME_SLUG}}
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/Dockerfile.{{cookiecutter.PROJECT_NAME_SLUG}}
@@ -1,24 +1,37 @@
-ARG PYTHON_VERSION=3.7.0-alpine3.8
+ARG PYTHON_VERSION=3.7
 
-FROM python:${PYTHON_VERSION} as builder
+FROM python:${PYTHON_VERSION} AS builder
 
-WORKDIR /usr/src/{{cookiecutter.PROJECT_NAME_SLUG}}
+WORKDIR /src
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+RUN pip wheel --no-cache-dir -r requirements.txt -w /deps
 
 COPY requirements-dev.txt .
 RUN pip install --no-cache-dir -r requirements-dev.txt
 
 COPY . .
 
-# Run tests, linter
-RUN pytest testapp.py \
+RUN flake8 *.py \
  && isort --check-only *.py \
- && flake8 *.py
+ && pydocstyle *.py \
+ && python -m doctest *.py
+
+FROM python:${PYTHON_VERSION}-slim AS runtime
+
+WORKDIR /{{cookiecutter.PROJECT_NAME_SLUG}}/deps
+COPY --from=builder /deps .
+RUN pip install --no-cache-dir *.whl
+
+WORKDIR /{{cookiecutter.PROJECT_NAME_SLUG}}/src
+COPY --from=builder /src .
 
-# Release
-FROM python:${PYTHON_VERSION}
+ENV HOST=0.0.0.0
+ENV PORT=80
+ENV WORKERS=4
+ENV LOG_LEVEL=info
 
-WORKDIR /{{cookiecutter.PROJECT_NAME_SLUG}}
-COPY --from=builder /usr/src/{{cookiecutter.PROJECT_NAME_SLUG}} /{{cookiecutter.PROJECT_NAME_SLUG}}
-RUN pip install -r requirements.txt
+EXPOSE $PORT
 
-CMD ["python", "main.py"]
+CMD gunicorn --log-level="$LOG_LEVEL" --bind="$HOST:$PORT" --workers="$WORKERS" "main:build_app(wsgi=True)"
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/api.spec.yaml b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/api.spec.yaml
new file mode 100644
index 00000000..0af8d24c
--- /dev/null
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/api.spec.yaml
@@ -0,0 +1,32 @@
+swagger: '2.0'
+
+info:
+  title: Transformation API
+  version: '1.0'
+
+basePath: '/'
+
+paths:
+  '/':
+    post:
+      summary: Transform the data.
+      operationId: main.main
+      consumes:
+        - application/json
+      parameters:
+        - $ref: '#/parameters/Data'
+      responses:
+        200:
+          description: The transformed data.
+
+parameters:
+  Data:
+    name: data
+    description: The data to transform.
+    in: body
+    schema:
+      $ref: '#/definitions/Data'
+    required: true
+
+definitions:
+{{DATA_SCHEMA}}
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/data.spec.yaml b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/data.spec.yaml
new file mode 100644
index 00000000..aba41e58
--- /dev/null
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/data.spec.yaml
@@ -0,0 +1,11 @@
+Data:
+  properties:
+    key:
+      description: The key of the input.
+      type: string
+    intValue:
+      description: The value of the input.
+      type: number
+  required:
+    - key
+    - intValue
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/datahelper.py b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/datahelper.py
deleted file mode 100644
index 32789582..00000000
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/datahelper.py
+++ /dev/null
@@ -1,36 +0,0 @@
-""" Helper functions for the customer application """
-import json
-
-from jsonschema import validate
-
-IN_MEMORY_FILES = {}
-
-
-def validate_schema(data, schema_filepath: str):
-    """ Validates the input json data against our schema
-        defined in schema_example.json
-
-        Args: serialized json object that server has retrieved
-    """
-    if schema_filepath is None:
-        schema_filepath = 'schema_example.json'
-    if schema_filepath not in IN_MEMORY_FILES.keys():
-        with open(schema_filepath, 'r') as schema:
-            schema_data = schema.read()
-        sample_schema = json.loads(schema_data)
-        IN_MEMORY_FILES[schema_filepath] = sample_schema
-
-    parsed_json = json.loads(data)
-    validate(parsed_json, IN_MEMORY_FILES[schema_filepath])
-
-
-def transform(data: object):
-    """ Applies simple transformation to the data for the
-        final output
-
-        Args:
-            data: serialized json object that has been validated against schema
-    """
-    parsed_json = json.loads(data)
-    parsed_json['intValue'] = parsed_json['intValue'] + 100
-    return parsed_json
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logging.yaml b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logging.yaml
deleted file mode 100644
index 7e0bd4d0..00000000
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logging.yaml
+++ /dev/null
@@ -1,23 +0,0 @@
----
-version: 1
-disable_existing_loggers: False
-formatters:
-    simple:
-        format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
-
-handlers:
-    console:
-        class: logging.StreamHandler
-        level: DEBUG
-        formatter: simple
-        stream: ext://sys.stdout
-
-loggers:
-    my_module:
-        level: ERROR
-        handlers: [console]
-        propagate: no
-
-root:
-    level: INFO
-    handlers: [console]
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logic.py b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logic.py
new file mode 100644
index 00000000..32723385
--- /dev/null
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/logic.py
@@ -0,0 +1,24 @@
+"""
+Implements the business logic for {{cookiecutter.PROJECT_NAME_SLUG}}.
+
+Overwrite the sample implementation in this file with your own requirements.
+The framework expects a function named `transform` to be present in this
+module but helper functions may be added at your convenience.
+"""
+
+
+def transform(data: dict) -> dict:
+    """
+    Apply the required transformations to the input data.
+
+    The input data for this function is guaranteed to follow the specification
+    provided to the framework. Consult `data.spec.yaml` for an example.
+
+    Args:
+      data: input object to transform
+
+    >>> transform({'intValue': 100})
+    {'intValue': 200}
+    """
+    data['intValue'] += 100
+    return data
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/main.py b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/main.py
index 10eaf735..c2705837 100644
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/main.py
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/main.py
@@ -1,94 +1,77 @@
-""" Entrypoint for customer application. Listens for HTTP requests from
-the input reader, and sends the transformed message to the output writer. """
-import json
-import logging
-import os
-from http.server import BaseHTTPRequestHandler
-from http.server import HTTPServer
-
-import requests
-
-import datahelper
-
-# HOST & PORT are the values used to run the current application
-HOST = os.getenv("HOST")
-PORT = os.getenv("PORT")
-
-# OUTPUT_URL is the url which receives all the output messages after they are processed by the app
-OUTPUT_URL = os.getenv("OUTPUT_URL")
-
-# Filepath for the JSON schema which represents
-# the schema for the expected input messages to the app
-SCHEMA_FILEPATH = os.getenv("SCHEMA_FILEPATH")
-
-
-class Socket(BaseHTTPRequestHandler):
-    """Handles HTTP requests that come to the server."""
-
-    def _set_headers(self):
-        """Sets common headers when returning an OK HTTPStatus. """
-        self.send_response(200)
-        self.send_header('Content-type', 'text/html')
-        self.end_headers()
-
-    def do_POST(self):
-        """Handles a POST request to the server.
-        Sends 400 error if there is an issue, otherwise sends a success message.
-
-        Raises:
-          ValidationError: Returns when data given is not valid against schema
-          HTTPError: Returns when there is an error sending message to output url
-
-        """
-        content_length = int(self.headers['Content-Length'])
-        data = self.rfile.read(content_length)
-        data = data.decode("utf-8")
-
-        try:
-            datahelper.validate_schema(data, SCHEMA_FILEPATH)
-        except BaseException:
-            self.send_error(
-                400, 'Incorrect data format. Please check JSON schema.')
-            logging.error('Incorrect data format. Please check JSON schema.')
-            raise
-
-        try:
-            transformed_data = datahelper.transform(data)
-            output_message(transformed_data)
-            self._set_headers()
-            self.wfile.write(bytes("Data successfully consumed", 'utf8'))
-        except BaseException:
-            self.send_error(400, 'Error when sending output message')
-            logging.error('Error when sending output message')
-            raise
-
-
-def output_message(data: object):
-    """Outputs the transformed payload to the specified HTTP endpoint
-
-    Args:
-      data: transformed json object to send to output writer
-    """
-    request = requests.post(OUTPUT_URL, data=json.dumps(data))
-    if request.status_code != 200:
-
-        logging.error("Error with a request %s and message not sent was %s",
-                      request.status_code, data)
-    else:
-        logging.info("%s Response received from output writer",
-                     request.status_code)
+"""
+Entrypoint for customer application.
+
+Listens for HTTP(S) requests from the input reader, transforms the message
+and sends the transformed message to the output writer.
+
+You can view a specification for the API at /swagger.json as well as a testing
+console at /ui/.
+
+All business logic for {{cookiecutter.PROJECT_NAME_SLUG}} should be included
+in `logic.py` and it is unlikely that changes to this `main.py` file will be
+required.
+"""
+from logging import getLogger
+
+from requests import post
+
+import settings
+from logic import transform
+
+LOG = getLogger(__name__)
+
+
+def main(data: dict):
+    """Transform the input and forward the transformed payload via HTTP(S)."""
+    data = transform(data)
+
+    if not settings.OUTPUT_URL:
+        LOG.warning('Not OUTPUT_URL specified, not forwarding data.')
+        return data, 500
+
+    response = post(settings.OUTPUT_URL, json=data)
+    if not response.ok:
+        LOG.error('Error %d with post to url %s and body %s.',
+                  response.status_code, settings.OUTPUT_URL, data)
+        return data, response.status_code
 
+    LOG.info('Response %d received from output writer.', response.status_code)
+    return data, 200
 
-def run(server_class=HTTPServer, handler_class=Socket):
-    """Run the server on specified host and port, using our
-    custom Socket class to receive and process requests.
-    """
 
-    server_address = (HOST, int(PORT))
-    httpd = server_class(server_address, handler_class)
-    logging.info('Running server on host ${HOST} and port ${PORT}')
-    httpd.serve_forever()
+def build_app(wsgi=False):
+    """Create the web server."""
+    from connexion import App
+
+    with open(settings.DATA_SCHEMA, encoding='utf-8') as fobj:
+        data_schema = '\n'.join('  {}'.format(line.rstrip('\r\n'))
+                                for line in fobj)
+
+    LOG.setLevel(settings.LOG_LEVEL)
+
+    app = App(__name__)
+    app.add_api('api.spec.yaml', arguments={'DATA_SCHEMA': data_schema})
+
+    return app.app if wsgi else app
+
+
+def cli():
+    """Command line interface for the web server."""
+    from argparse import ArgumentParser
+
+    from yaml import YAMLError
+
+    parser = ArgumentParser(description=__doc__)
+    parser.parse_args()
+
+    try:
+        app = build_app()
+    except YAMLError as ex:
+        parser.error('Unable to parse {} as a Swagger spec.\n\n{}'
+                     .format(settings.DATA_SCHEMA, ex))
+    else:
+        app.run(port=settings.PORT, host=settings.HOST)
 
 
 if __name__ == "__main__":
-    run()
+    cli()
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements-dev.txt b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements-dev.txt
index a168a295..5662ce21 100644
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements-dev.txt
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements-dev.txt
@@ -1,7 +1,3 @@
-hypothesis
-python-dotenv
-jsonschema
-pytest
 flake8
 isort
-requests
+pydocstyle
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements.txt b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements.txt
index c2d74f49..399f4420 100644
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements.txt
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/requirements.txt
@@ -1,3 +1,4 @@
-python-dotenv
-jsonschema
+connexion[swagger-ui]
+environs
+gunicorn
 requests
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/schema_example.json b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/schema_example.json
deleted file mode 100644
index 0291f909..00000000
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/schema_example.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "type": "object",
-  "properties": {
-      "key": {"type": "string"},
-      "intValue": {"type": "integer"}
-  }
-}
\ No newline at end of file
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/settings.py b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/settings.py
new file mode 100644
index 00000000..d7226332
--- /dev/null
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/settings.py
@@ -0,0 +1,15 @@
+"""
+Module to hold all application configuration.
+
+All environment variable access hould happen in this module only.
+"""
+from environs import Env
+
+env = Env()
+env.read_env()
+
+PORT = env.int('PORT', 8888)
+HOST = env('HOST', '127.0.0.1')
+DATA_SCHEMA = env('SCHEMA_FILEPATH', 'data.spec.yaml')
+OUTPUT_URL = env('OUTPUT_URL', '')
+LOG_LEVEL = env('LOG_LEVEL', 'INFO').upper()
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/setup.cfg b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/setup.cfg
index e7671d3d..34d8b4d0 100644
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/setup.cfg
+++ b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/setup.cfg
@@ -4,3 +4,10 @@ max-line-length = 120
 [isort]
 force_single_line = True
 line_length = 120
+
+[pydocstyle]
+ignore =
+	D102,
+	D104,
+	D203,
+	D212
diff --git a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/testapp.py b/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/testapp.py
deleted file mode 100644
index e7bff16c..00000000
--- a/agogosml_cli/cli/templates/apps/simple/{{cookiecutter.PROJECT_NAME_SLUG}}/testapp.py
+++ /dev/null
@@ -1,46 +0,0 @@
-""" Unit tests for the customer app """
-import json
-import os
-from pathlib import Path
-
-from dotenv import load_dotenv
-from hypothesis import given
-from hypothesis.strategies import characters
-from hypothesis.strategies import fixed_dictionaries
-from hypothesis.strategies import integers
-from hypothesis.strategies import text
-
-import datahelper
-
-BASE_DIR = Path(__file__).parent.absolute()
-load_dotenv(dotenv_path=str(BASE_DIR / ".env"))
-
-SCHEMA_FILEPATH = os.getenv('SCHEMA_FILEPATH')
-
-# TO DO: Make Unit Tests More Robust
-
-
-@given(
-    data=fixed_dictionaries({
-        'key': text(characters()),
-        'intValue': integers()
-    }))
-def test_validation(data):
-    """ Test that the schema validator is working as expected """
-    encoded_json = json.dumps(data)
-    assert datahelper.validate_schema(encoded_json, SCHEMA_FILEPATH) is None
-
-
-@given(
-    data=fixed_dictionaries({
-        'key': text(characters()),
-        'intValue': integers()
-    }))
-def test_transform(data):
-    """ Test the simple transformation on the input data """
-    encoded_original_json = json.dumps(data)
-    transformed_object = datahelper.transform(encoded_original_json)
-
-    data['intValue'] = data['intValue'] + 100
-
-    assert transformed_object == data
diff --git a/agogosml_cli/tests/test_cli_generate.py b/agogosml_cli/tests/test_cli_generate.py
index cd8119e4..344725b6 100644
--- a/agogosml_cli/tests/test_cli_generate.py
+++ b/agogosml_cli/tests/test_cli_generate.py
@@ -35,14 +35,15 @@
     'testproject/output_writer/Dockerfile.output_writer',
     'testproject/output_writer/logging.yaml',
     'testproject/output_writer/main.py',
+    'testproject/testproject/.dockerignore',
+    'testproject/testproject/api.spec.yaml',
+    'testproject/testproject/data.spec.yaml',
     'testproject/testproject/Dockerfile.testproject',
-    'testproject/testproject/logging.yaml',
+    'testproject/testproject/logic.py',
     'testproject/testproject/main.py',
-    'testproject/testproject/requirements-dev.txt',
     'testproject/testproject/requirements.txt',
-    'testproject/testproject/datahelper.py',
-    'testproject/testproject/schema_example.json',
-    'testproject/testproject/testapp.py'
+    'testproject/testproject/requirements-dev.txt',
+    'testproject/testproject/setup.cfg',
 )