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https://github.com/aliartiza75/flask-backend-application

Back-end application build in flask, its frontend application exists in aliartiza75/ht-fe repository.
https://github.com/aliartiza75/flask-backend-application

docker flask-restapi flask-restful helm kubernetes microservice

Last synced: about 1 month ago
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Back-end application build in flask, its frontend application exists in aliartiza75/ht-fe repository.

Host: GitHub
URL: https://github.com/aliartiza75/flask-backend-application
Owner: aliartiza75
Created: 2019-02-09T06:57:29.000Z (about 6 years ago)
Default Branch: master
Last Pushed: 2024-10-28T11:50:20.000Z (4 months ago)
Last Synced: 2024-11-18T08:29:15.780Z (3 months ago)
Topics: docker, flask-restapi, flask-restful, helm, kubernetes, microservice
Language: Python
Homepage:
Size: 72.3 KB
Stars: 0
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

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# Flask Backend Application

This repository contains backend logic and kubernetes manifests. I have used `minikube` for this project. Installation steps is given in this [gist](https://gist.github.com/aliartiza75/3a34f059de62c7de04727dae6a363ea8)

# Guidelines for containerizing backend 

* To build image

```bash

sudo docker run -t ht-be:0.0.1 -f Dockerfile .

```

* To run docker container on host machine

```bash

sudo docker run -e FLASK_ENV=development -e FLASK_HOST_IP=0.0.0.0 -e=FLASK_HOST_PORT=5001 -e Name=Irtiza -p 1001:5001 ht-be:0.0.1

```

# Guidelines for kubernetes deployment

* Deployment creation

```bash

sudo kubectl apply -f deployment.yaml

```

* Service creation

```bash

sudo kubectl apply -f htbe_service.yaml 

```

* Validating whether application is running or not. Use the command given below from host machine on which kubernetes is running

```

curl -X GET "http://:/datetime"

```

# Guidelines for helm charts deployment

* Helm installation guidelines [link](https://helm.sh/docs/install/#installing-the-helm-client)

* Once the helm is installed, use the command given below to install tiller in kubernetes cluster:

```bash

helm init

```

* To create a helm chart folder:

```bash

helm create 

```

* To dry run the helm chart for debugging:

```bash

sudo helm install --dry-run --debug  

```

* To purge a release

```bash

sudo helm del --purge 

```

* To check the status of a release

```bash

sudo helm ls --all 

```

* To search a helm package name

```bash

sudo helm search 

```

* To create a package from the helm charts folder

```bash

sudo helm package 

```

# Important Notes

* Start the minikube cluster in the virtual machine drive in none mode [--vm-driver=none], otherwise services will not be accessible.

* Minikube will pull images from the dockerhub.

* In some cases minikube cluster doesn't work properly, one quick fix is to delete the cluster and restart the minikube cluster.