Also see: https://hub.docker.com/_/postgres
docker run -it --rm -p 5432:5432 --name pg -e POSTGRES_PASSWORD=password postgres
$ docker exec -it pg /bin/bash
root@187961c81d2e:/# psql -U postgres
psql (14.2 (Debian 14.2-1.pgdg110+1))
Type "help" for help.
go run main.go
curl -X POST localhost:8080/tasks/ --data "taskname=hello1"
curl -X GET localhost:8080/tasks/20
http POST --form localhost:8080/tasks/ taskname=hello1
http GET localhost:8080/tasks/1
go test ./...