src en submodule

.gitmodules

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+[submodule "infra"]
+	path = infra
+	url = https://github.com/beppevanrolleghem/stage-infra

src/app.py

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+from flask import Flask
+import requests
+
+app = Flask(__name__)
+
+URL = "http://server-check:6000"
+
+@app.errorhandler(404)
+def page_not_found(error):
+   return "beppe's 404 error"
+
+@app.route('/')
+def doRequest():
+    return "it works"
+
+@app.route('/server-a')
+def checkThis():
+	return "server-a is apparently something to worry abt"
+
+@app.route("/server-a/check")
+def itAlsoWorks():
+	return requests.get(URL).json()
+
+@app.route('/check')
+def itWorks():
+    return requests.get(URL).json()
+
+@app.route('/text')
+def hope():
+    return requests.get(URL).text
+
+
+@app.route('/find/<name>/<port>')
+def findServer(name, port):
+    return requests.get("http://"+name+":"+port)
+
+if __name__ == '__main__':
+    app.run(debug=True, host="0.0.0.0", port=5000)

src/dockerfile

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+from python:3.7
+
+copy . /app
+workdir /app
+
+run pip install -r requirements.txt
+expose 5000
+entrypoint [ "python" ]
+
+cmd [ "app.py" ]

src/requirements.txt

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+Flask
+requests