Microservices Setup and Configuration

To launch the end-to-end microservices application perform the following:

Step 1.

Build each of the microservice Docker container images:

cd frontend
docker-compose -f docker-compose.deploy.yml build
docker images
docker-compose -f docker-compose.deploy.yml up -d

Step 2.

Prepare each microservice mysql database (If not created):

for service in corder-service cproduct-service cuser-service;
do 
 docker exec -it $service flask db init
 docker exec -it $service flask db migrate
 docker exec -it $service flask db upgrade
done

Step 3.

Populate the product database:

curl -i -d "name=prod1&slug=prod1&image=product1.jpg&price=100" -X POST localhost:5002/api/product/create
curl -i -d "name=prod2&slug=prod2&image=product2.jpg&price=200" -X POST localhost:5002/api/product/create

Step 4.

Using your workstations browser - navigate to the following URL and register:

http://localhost:5000/register

Step 7.

Back within your terminal, use a mysql client to confirm that a new user registration record was created:

mysql --host=127.0.0.1 --port=32000 --user=danops --password=danops_2022
mysql> show databases;
mysql> use user;
mysql> show tables;
mysql> select * from user;
mysql> exit

Build User Container Indepently.

cd User
docker-compose build
docker-compose up -d
docker ps
docker exec -it cuser-service flask db upgrade

Build Product Container Indepently.

cd Product
docker-compose build
docker-compose up -d
docker ps
docker exec -it cproduct-service flask db upgrade

Build Order Container Indepently.

cd Order
docker-compose build
docker-compose up -d
docker ps
docker exec -it corder-service flask db upgrade

Microservices Teardown

Perform the following steps to teardown the microservices environment:

Step 1.

Create a new Docker network and name it micro_network:

for container in cuser-service cproduct-service corder-service cproduct_dbase cfrontend-app cuser_dbase corder_dbase;
do
 docker stop $container
 docker rm $container
done

Step 2.

Remove the container volumes

for vol in frontend_orderdb_vol frontend_productdb_vol frontend_userdb_vol;
do
 docker volume rm $vol
done

Step 3.

Remove the container network

docker network rm micro_network