chornonoh-vova / image-hosting-example

Simple application for storing images to showcase principles of web distributed systems design

Image hosting application example

This application was created as an example to my university work.

Building docker images

(Optionally) pull images, required in stack

You can pull images, used in this example, before building and starting application.

# Node LTS
# used for services
docker pull node:12.13.0-alpine
# MongoDB
# used as storage for additional image data
docker pull mongo:3.4.23

Build image for read service

Command needs to be executed from the root of repository.

docker build \
  --file Dockerfile \
  --build-arg NPM_TOKEN=${NPM_TOKEN} \
  --build-arg SERVICE='read-service' \
  --tag image-read-service .

Build image for write service

Command needs to be executed from the root of repository.

docker build \
  --file Dockerfile \
  --build-arg NPM_TOKEN=${NPM_TOKEN} \
  --build-arg SERVICE='write-service' \
  --tag image-write-service .

Starting application

Start the stack

# only initialize swarm if it was not initialized before
docker swarm init

docker stack deploy \
  --compose-file docker-compose.yml \
  image_hosting

Stopping application

docker stack rm image_hosting