CODEWITHSUNDEEP
pythongoogle-app-enginedebuggingflask
Riley Hun
Riley Hun

Reputation: 2785

Google AppEngine: 502 Bad Gateway From Deploying Flask App

I'm experiencing so much trouble launch my application from the remote server after deploying it to Google AppEngine. I've looked up similar questions and tried to apply the suggested fixes, but still no success - I keep getting that 502 Bad Gateway Issue. Could someone please advise?

Folder structure is like this:

directory: cross_sell_dash/
app.yml
database.py
Dockerfile
gcp-sa-creds.json
main.py
requirements.txt

app.yml

entrypoint: "gunicorn --bind:$PORT main:app"
env: flex
runtime: custom

main.py

app = Flask(__name__)

@app.route("/call/<function_name>/search/", methods=["GET"])
def callFunction(function_name: str):
    user_id = request.args.get('user_id')
    savm_id = request.args.get('savm_id')
    business_sub_entity = request.args.get('business_sub_entity')
    user_comments = request.args.get('user_comments')
    user_approval = request.args.get('user_approval')
    functionToCall = getattr(Database(), function_name)
    return str(functionToCall(user_id, savm_id, business_sub_entity, user_comments, user_approval))

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8080, debug=True)

Dockerfile

FROM python:3-onbuild

RUN mkdir /app
ADD . /app

WORKDIR /app

RUN pip3 --no-cache-dir install -r requirements.txt

EXPOSE 8080

ENTRYPOINT ["python3", "main.py"]
ENTRYPOINT ["gunicorn","--bind=0.0.0.0:8080","main:app"]

Upvotes: 0

Views: 768

Answers (1)

Akhil Lawrence
Akhil Lawrence

Reputation: 434

  • Remove the entrypoint in app.yaml
  • Update Dockerfile as follows
FROM python:3-onbuild

RUN mkdir /app
ADD . /app

WORKDIR /app

RUN pip3 --no-cache-dir install -r requirements.txt

EXPOSE 8080

ENTRYPOINT ["gunicorn", "--bind=0.0.0.0:8080", "main:app"]

Upvotes: 3

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