Docker Env POC

A POC for passing an Env variable to a docker container and reading it in the application.

• A simple Python web app containerized using Docker
• Endpints -
  • /ping # returns pong
  • /env # returns ENV_VAR value passed during docker run

How to run?

# Step 0 - Display CLI options
./docker-helper.sh
# o/p - CLI options, choose from build | run | run-env | clean
# Step 1 - Build docker container image
./docker-helper.sh build
# Step 2 - Run docker container without setting ENV_VAR
./docker-helper.sh run
# Step 3 - Run docker container with value passed in ENV_VAR; it is picked up from 2nd arg (value in "")
./docker-helper.sh run-env "this-is-coming-from-env-var"

Finally open http://0.0.0.0:8080/env

Run AWS CLI configuration

• Create a file .env in the repo root and add configuration in following format

  AWS_ACCESS_KEY_ID=xxxx
  AWS_SECRET_ACCESS_KEY=xxxx
  AWS_DEFAULT_REGION=us-east-1
  ENV_VAR=Sample-env
  

• Run

  # Run docker container with AWS CLI configuration
  ./docker-helper.sh run-env-file

• Visit http://0.0.0.0:8080/buckets

Reference documentation

Author

• Nikhil Akki

License - MIT