In the previous article, we have discussed what is google app engine and how to deploy the application in the Google app engine – Standard. In this tutorial, we are going to see how to Flex-app engine works.
What is App Engine Flexible?
Photo by Antoine Petitteville
App engine flex offers a range of options to tweak kinds of stuff and customize the environment. We can choose any versions of runtime and then need to specify our own Docker files, which can take your own runtime and OS image that would need to use.
Though it is far easier and more practical to do with the Kubernetes engine, app engine flex is suitable for having a single container in a managed deployment without having to set up a Kube cluster and use them in a multi-cloud environment.
How to deploy a python application to App Engine Flexi
Do check out the below video tutorial for the below steps as well.
1. Connect to a project
gcloud config set project project_id
2. create a directory and generate the application code. Let us use the sample app code downloaded from GCP Github
git clone https://github.com/GoogleCloudPlatform/python-docs-samples
3. install the dependencies like flask for this example. If you don’t have a virtual environment, install the same.
pip install virtualenv
virtualenv env
source env/bin/activate
pip install –r requirement.txt
4. verify the application locally, by checking browser output
python main.py
Now, deploy the application to app engine flex,
gcloud app deploy
5. verify the output by curling the app engine default domain.
6. Schedule the task using the cron.YAML file. The below example, shows how to schedule the job run every day.
cron:
- description: "daily summary job"
url: /tasks/summary
schedule: every 24 hours
- description: "monday morning mailout"
url: /mail/weekly
schedule: every monday 09:00
timezone: Australia/NSW
- description: "new daily summary job"
url: /tasks/summary
schedule: every 24 hours
target: beta
gcloud app deploy cron.yaml
