Question: Why do I get this error?
ERROR: In file './docker-compose.yml', volume 'mariavolume' must be a mapping not a string.
My docker-compose file is almost identical to this one: https://docs.docker.com/compose/wordpress/
version: '2' services: wordpress: image: wordpress:latest restart: always depends_on: - db ports: - 8080:80 environment: WORDPRESS_DB_PASSWORD: example WORDPRESS_DB_HOST: 3306 db: image: mariadb restart: always environment: MYSQL_ROOT_PASSWORD: example volumes: - maria_volume: /var/lib/mysql volumes: maria_volume: ~/mariadb
In my case this was happening because I missed adding a : after the volume name.
:
Instead of:
volumes: - mysqldata:
I had typed:
volumes: - mysqldata
docker-compose up gave me the same error as above.
docker-compose up
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