To configure Kong API Gateway and run the services, follow the steps below.
- Create a Docker network
docker network create kong-net
- Start a database
docker run -d --name kong-database \
--network=kong-net \
-p 5432:5432 \
-e "POSTGRES_USER=kong" \
-e "POSTGRES_DB=kong" \
postgres:9.6
- Prepare the database
docker run --rm \
--network=kong-net \
-e "KONG_DATABASE=postgres" \
-e "KONG_PG_HOST=kong-database" \
kong:latest kong migrations up
- Start Kong
docker run -d --name kong \
--network=kong-net \
-e "KONG_DATABASE=postgres" \
-e "KONG_PG_HOST=kong-database" \
-e "KONG_CASSANDRA_CONTACT_POINTS=kong-database" \
-e "KONG_PROXY_ACCESS_LOG=/dev/stdout" \
-e "KONG_ADMIN_ACCESS_LOG=/dev/stdout" \
-e "KONG_PROXY_ERROR_LOG=/dev/stderr" \
-e "KONG_ADMIN_ERROR_LOG=/dev/stderr" \
-e "KONG_ADMIN_LISTEN=0.0.0.0:8001, 0.0.0.0:8444 ssl" \
-p 8000:8000 \
-p 8443:8443 \
-p 8001:8001 \
-p 8444:8444 \
kong:latest
- Test Kong
curl -i http://localhost:8001/
- Add the services using the Admin API
curl -i -X POST \
--url http://localhost:8001/services/ \
--data 'name=user-service' \
--data 'url=http://user:8080'
curl -i -X POST \
--url http://localhost:8001/services/ \
--data 'name=account-service' \
--data 'url=http://account:8090'
- Add the routes for the services
curl -i -X POST \
--url http://localhost:8001/services/user-service/routes \
--data 'hosts[]=user'
curl -i -X POST \
--url http://localhost:8001/services/account-service/routes \
--data 'hosts[]=account'
- Build and start the services
mvn package -DskipTests
docker build -t user-mp user/target
docker build -t account-mp account/target
docker run -d -p 8080:8080 --name user --network kong-net user-mp:latest
docker run -d -p 8090:8090 --name account --network kong-net account-mp:latest
- Forward the requests through Kong
curl -i -X GET \
--url http://localhost:8000/user/getall \
--header 'Host: user'
curl -i -X GET \
--url http://localhost:8000/account/id/0001 \
--header 'Host: account'