Migrate pipeline from drone to concourse?

Hello , everybody here.

I’m trying to analize this great project and how could I migrate from drone a simple pipeline.

The fact is I’m trying to read some pipeline documentations but I can not see how to lauch docker images than can comunicate themself in paralel with usual docker parameters (priveleged,shm_mem) defined as services like in docker-composer, and after in each pipeline step I will conect with these services to do test or any other thing.

Supose this use case testing a webapp previously built and deployed on myregistry, I need test in this way like defined in this drone pipeline.

kind: pipeline
type: docker
name: default

services:
- name: database_test_endpoint
  pull: always
  image: myregistry/mydatabase:0.1
  privileged: true
  shm_size: 2g
  ports:
   - 1234
  environment:
    DB_ENV: false
    DB_ENV2: ok
    DB_ENV3: supervar

- name: frontent_web
  pull: always
  image: myregistry/myfrontend_web:0.1
  ports:
   - 80
   - 443
  environment:
    WEB_DB_BACKEND_HOST: database_test_endpoint
    WEB_DB_BACKEND_PORT: 1234

steps:
- name: check_images_ok
  image: alpine
  commands:
  - ping -c 4  database_test_endpoint
  - ping -c 4  frontent_web

- name: check_webapp_ok
  image: myregistry/alpine-with-curl
  commands:
   -  curl -k 'https://frontent_web:443/'

- name: check_webapp_api
  image: myregistry/alpine-with-curl
  commands:
   -  curl -k 'https://frontent_web:443/myapi/'

How could I trigger the same images inside concouse pipelines/jobs/resources? Could you show me examples with concouse syntax similar to this drone pipeline?