Add Postgres service to docker-compose file

A new Postgres service has been added to the docker-compose file, with its respective environmental variables and volume. This service uses postgres:13.3-alpine image and is accessible via the port 5432.

docker-compose.yml

@@ -38,6 +38,18 @@ services:
  ACCEPT_EULA: "Y"
  volumes:
  - c:\data\docker\sqlserver2019:/var/opt/mssql/data
+
+ postgres:
+ image: postgres:13.3-alpine
+ container_name: elsa3-postgres
+ environment:
+ POSTGRES_USER: postgres
+ POSTGRES_PASSWORD: postgrespw
+ POSTGRES_DB: elsa
+ ports:
+ - "5432:5432"
+ volumes:
+ - pgdata:/var/lib/postgresql/data
 
  mongodb:
  image: mongo:latest
@@ -110,5 +122,6 @@ networks:
 
 volumes:
  mongodb_data:
+ pgdata:
  elasticsearch-data:
  driver: local