move template to ./template;

added global README.md;

template/color-service/.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+
+
+## Add any files that are not relevant for docker to build your image
+
+**/.venv

template/color-service/.gitignore

@@ -0,0 +1 @@
+.venv

template/color-service/Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.7.4-slim
+# Alpine isn't used here intentionally because especially with python there are often major issues when compiling dependencies
+WORKDIR /app
+RUN apt-get update && apt-get install -y build-essential
+COPY ./requirements.txt ./
+RUN pip install -r /app/requirements.txt
+COPY . .
+EXPOSE 4000
+# The -u flag is important if you want to observe the logs, otherwise python buffers the output
+ENTRYPOINT [ "python", "-u", "main.py" ]

template/color-service/README.md

@@ -0,0 +1,4 @@
+# Color-Service
+
+**Important**: This is not meant to be extended and only serves as an example to show how to call another service orchestrated by Docker Compose
+

template/color-service/main.py

@@ -0,0 +1,37 @@
+from aiohttp import web
+import json
+import os
+import random
+
+
+async def handle(request):
+    name = request.match_info.get('name', "Anonymous")
+    text = "Hello, " + name
+    return web.Response(text=text)
+
+
+async def handle_color(request):
+    """ returns a random color """
+    colors = color_data["colors"]
+    color = random.choice(colors)
+    return web.json_response(data=color)
+
+
+def load_colors(path: str):
+    """ loads color data from path """
+    with open(path) as f:
+        data = f.read()
+        return json.loads(data)
+
+
+app = web.Application()
+app.add_routes([
+    web.get('/color', handle_color),
+    web.get('/hello/{name}', handle)])
+
+color_data = load_colors("/app/data.json")
+
+if __name__ == '__main__':
+    port = os.environ.get("HTTP_PORT", "4000")
+    print("Starting server on port ", port)
+    web.run_app(app, port=int(port))

template/color-service/requirements.txt

@@ -0,0 +1,16 @@
+aiodns==2.0.0
+aiohttp==3.6.1
+async-timeout==3.0.1
+attrs==19.2.0
+brotlipy==0.7.0
+cchardet==2.1.4
+cffi==1.12.3
+chardet==3.0.4
+idna==2.8
+idna-ssl==1.1.0
+multidict==4.5.2
+pycares==3.0.0
+pycparser==2.19
+typing==3.7.4.1
+typing-extensions==3.7.4
+yarl==1.3.0