Problem installing Ghost with docker-compose

[Encang-Cutbray]

Hai, i have a problem to install ghost with docker-compose
the problem is
ERROR ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client
ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client
"Unknown database error"
Error ID:
500
Error Code:
ER_NOT_SUPPORTED_AUTH_MODE

my docker-compose

version: "3.1"
services:
ghost:
image: ghost:latest
restart: always
networks:
- ghost-lover
ports:
- 8080:2368
environment:
database__client: mysql
database__connection__host: db
database__connection__user: root
database__connection__password: example
database__connection__database: ghost
url: http://localhost:8080

db:
image: mysql:latest
networks:
- ghost-lover
restart: always
environment:
MYSQL_ROOT_PASSWORD: example
volumes:
- mysql-lover:/var/lib/mysql

volumes:
mysql-lover:
networks:
ghost-lover:

can do you help me? thank

[acburdine]

@Encang-Cutbray the reason this is occurring I think is because mysql:latest installs MySQL version 8, which currently has a couple of known incompatibilities with the nodejs MySQL driver.

To fix this, try updating your db image to mysql:5.7 instead.

[Encang-Cutbray]

@acburdine yes, I used mysql:latest for my database, and i changed to mysql:5.7, it is working now, thanks for information about known incompatibilities mysql 8.0 thank you very much

[heng1025]

@acburdine ghost 4+ has supported mysql 8.0，maybe you need open mysql_native_password.
Here is the example：

• Run a container independently
  docker run --name db -e MYSQL_ROOT_PASSWORD=example -d mysql --default-authentication-plugin=mysql_native_password

• docker-compose.yml

version: '3.8'
services:
  ghost:
    image: ghost:alpine
    restart: always
    ports:
      - 8080:2368
    environment:
      # see https://ghost.org/docs/config/#configuration-options
      database__client: mysql
      database__connection__host: db
      database__connection__user: root
      database__connection__password: example
      database__connection__database: ghost
      # this url value is just an example, and is likely wrong for your environment!
      url: http://localhost:8080
      # contrary to the default mentioned in the linked documentation, this image defaults to NODE_ENV=production (so development mode needs to be explicitly specified if desired)
      #NODE_ENV: development

  db:
    image: mysql:latest
    restart: always
    command: --default-authentication-plugin=mysql_native_password
    environment:
      MYSQL_ROOT_PASSWORD: example

[dnsmichi]

@heng1025 Thanks a lot for sharing, it helped my upgrade to v4 and MySQL 8 :-)

I've created a summary blog for everyone looking into the same: https://dnsmichi.at/2021/11/30/upgrade-to-ghost-v4-with-docker-compose/