asp.net - Setup aspnetcore with MySQL database in docker -


i'm trying set docker-compose file container asp.net-core, mysql database , phpmyadmin. there no problem setting mysql-server, can access phpmyadmin. asp.net-core application running correctly , can access in browser.

however, not able make connection mysql database. application keeps returning:

unable connect of specified mysql hosts

the application connecting through connection string in appsettings.json.

{   "connectionstrings": {     "flowerapiconnection": "server=localhost;userid=user;password=user;database=bloemenapi_db;convert 0 datetime=true"   },   "logging": {     "includescopes": false,     "debug": {       "loglevel": {         "default": "warning"       }     },     "console": {       "loglevel": {         "default": "warning"       }     }   } }

my guess in docker container app , mysql running can't seem find each other on localhost. tried using ip-adress of mysql container in connectionstring, did not work.

i'm using following docker-compose.yml , dockerfile.

version: '3'  services:   db:     image: mysql     restart:     container_name: flowerapi-db     environment:       - mysql_user=root       - mysql_password=user       - mysql_root_password=user       - mysql_database=bloemenapi_db     ports:       - "3306"    phpmyadmin:     image: phpmyadmin/phpmyadmin     container_name: flowerapi-pma     ports:       - "81:80"     external_links:       - db:mysql     environment:       pma_host: "db"       pma_port: 3306   web:     image: flowerapi     container_name: flowerapi-web     build:       context: ./flowerapi       dockerfile: dockerfile     ports:       - "5000:80"     links:       - db     depends_on:       - db

dockerfile

from microsoft/aspnetcore:2.0 label name "flower-api" arg source workdir /app expose 5000/tcp copy ${source:-obj/docker/publish} . entrypoint ["dotnet", "flowerapi.dll"]

thanks help.

localhost inside each container, won't work. try connect using db hostname, , port 3306.


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