php - Laravel cannot connect to dockerise database -

i created 3 containers (php-nginx-mysql) support default laravel project located on host machine.

when try connect db laravel error:

route::get('/', function () {     dd(app\user::all());     return view('welcome'); }); 

sqlstate[hy000] [2002] php_network_getaddresses: getaddrinfo failed: name or service not known (sql: select * users)

here .env in laravel-5.3.16

db_connection=mysql db_host=127.0.0.1 db_port=33061 db_database=homestead db_username=homestead db_password=secret 

and ansible-playbook:

--- - hosts: localhost   environment:     pythonpath: /usr/local/lib/python2.7/site-packages/    tasks:    - name: currernt location     command: pwd     register: my_way    - set_fact: host_dir="{{my_way.stdout}}"    - name: create image nginx     docker_image:       path: /home/demaunt/jun/dock_click/engie       dockerfile: engie.dockerfile       name: engie_image    - name: create image php     docker_image:       path: /home/demaunt/jun/dock_click/piha       dockerfile: piha.dockerfile       name: piha_image    - name: run piha container     docker_container:       name: piha_cont       image: piha_image       volumes:         - "/home/demaunt/dockjun/laravel-5.3.16:/var/www/wapclick"       links:         - diba_cont:db       env:         db_port: 3306         db_host: database    - name: run engie container     docker_container:       name: engie_cont       image: engie_image       volumes_from:         - piha_cont       ports:         - "8080:80"       links:         - piha_cont:app      - name: run diba container     docker_container:       name: diba_cont       image: mysql:5.6       env:         mysql_database: homestead         mysql_user: homestead         mysql_password: secret         mysql_root_password: secret        ports:        - 33061:3306 

what more strange when run php artisan migrate succesfull mesage:

migration table created successfully. migrated: 2014_10_12_000000_create_users_table migrated: 2014_10_12_100000_create_password_resets_table 

here containers running:

docker ps container id        image               command                  created             status              ports                           names e926382db347        engie_image         "nginx -g 'daemon ..."   19 seconds ago      18 seconds       443/tcp, 0.0.0.0:8080->80/tcp   engie_cont c9563c839e45        piha_image          "docker-php-entryp..."   19 seconds ago      18 seconds       9000/tcp                        piha_cont 5de541049da2        mysql:5.6           "docker-entrypoint..."   20 seconds ago      19 seconds       0.0.0.0:33061->3306/tcp         diba_cont 

try "diba_cont" db_host should job. docker declare automatically dns rule name of container contact container