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  1. create requiements.txt
  2. create dockerfile
dockerfile

FROM python:3.10-slim-buster

# Set the working directory inside the container
WORKDIR /todo-app

# Copy requirements first for caching
COPY requirements.txt requirements.txt

# Install dependencies
RUN pip3 install -r requirements.txt

# Copy all files into the working directory
COPY . .

# Command to run the application
CMD ["python", "app.py"]
  1. deploying simple flask app take care of port : 8080

if name == 'main': app.run(host="0.0.0.0", port=8080) # Hardcoded port 8080

if not configured : expected error

Revision 'flaskimg-00001-nqv' is not ready and cannot serve traffic. The user-provided container failed to start and listen on the port defined provided by the PORT=8080 environment variable within the allocated timeout. This can happen when the container port is misconfigured or if the timeout is too short. The health check timeout can be extended. Logs for this revision might contain more information. Logs URL: Open Cloud Logging  For more troubleshooting guidance, see https://cloud.google.com/run/docs/troubleshooting#container-failed-to-start

  1. create new project eg: flaskdeploydocker get the project id which is adjacent to it

  2. enable cloud run api and cloud build -> requires billing acc

  3. install gcloud cli gcloud init gcloud config set project flaskdockerdeploy

gcloud artifacts repositories create flaskdocker --repository-format=docker --location=europe-west4 --description="FlaskDockerAPP" --immutable-tags --async

gcloud auth configure-docker europe-west4-docker.pkg.dev

adds config file add service account permissions to iam click on edit and give object storage viewer permission

gcloud builds submit --tag europe-west4-docker.pkg.dev/flaskdockerdeploy/flaskdocker/flaskimg:flasktagnew

deploy to cloud run click on deploy container-> sevice

Deploy one revision from an existing container image select container url from artifacts image

Allow unauthenticated invocations Tick this if you are creating a public API or website.

connect your github to allow cicd push to github artifacts image automation builkding using docker

and if you want to run locally on docker

docker build . --tag europe-west4-docker.pkg.dev/flaskdockerdeploy/flaskdocker/otherimg:othertag

django_docker_kubernetes\docker_kubernetes> docker run -p 8080:8080 europe-west4-docker.pkg.dev/flaskdockerdeploy/flaskdocker/otherimg:othertag