gitlab-ci with docker:dind doesn't find docker-compose command !

Summary

Gitlab-ci runner doesn't find the docker-compose command with docker:dind services.

Steps to reproduce

I push my code on gitlab.com with a .gitlab-ci.yml file :

image: docker:latest

variables:
  DOCKER_DRIVER: overlay

services:
- docker:dind

before_script:
- docker info

build:
  stage: build
  script:
  - docker-compose -f docker-compose.test.yml build

Failed response

This is the error message :

/bin/sh: eval: line 57: docker-compose: not found
$ docker-compose -f docker-compose.test.yml build
ERROR: Job failed: exit code 127

Documentation

If I read the doc here : https://docs.gitlab.com/ce/ci/docker/using_docker_build.html#use-docker-in-docker-executor

I can read that using docker dind will have docker and docker-compose installed ?

Thx a lot for your help.