docker run -p5432:5432 -d \
-e POSTGRES_PASSWORD=postgres \
-e POSTGRES_INITDB_ARGS="-k" \
-v /pg/docker/data:/var/lib/postgresql/data \
--name pg1 \
postgres
docker run -p5433:5432 -d \
-e POSTGRES_PASSWORD=postgres \
-e POSTGRES_INITDB_ARGS="-k" \
-v /pg/docker/data:/var/lib/postgresql/data \
--name pg2 \
postgres
docker exec -it pg1 psql -U postgres
docker exec -it pg2 psql -U postgres