I try to learn about container, but i have a problem with my docker-compose.yml file, after i run the docker compose up, i always get the same error:

"ERROR: yaml.scanner.ScannerError: mapping values are not allowed here"

even if i changed the mount path to docker volume, i got the same error, this is my yml file

version: "3"
services: database: image: mariadb ports: - "3260:3260" volumes: - /home/randy/Desktop/Latihan/wordpress-mariadb/mariadb:var/lib/mysql environment: MYSQL_ROOT_PASSWORD: root wordpress: image: wordpress ports: - "2000:80" volumes: - /home/randy/Desktop/Latihan/wordpress-mariadb/wordpress:/var/www/html environment: WORDPRESS_DB_PASSWORD: root depends_on: - database links: - database

4

1 Answer

It appears that your yaml is invalid. When I face these types of issues, what I will do is use a site called which will validate the syntax for you.

This yaml based on your example is valid:

Note: You can use 4 spaces (or 2 which I prefer), but never use tabs.

version: "3"
services: database: environment: MYSQL_ROOT_PASSWORD: root image: mariadb ports: - "3260:3260" volumes: - "/home/randy/Desktop/Latihan/wordpress-mariadb/mariadb:var/lib/mysql" wordpress: image: wordpress ports: - "2000:80" volumes: - /home/randy/Desktop/Latihan/wordpress-mariadb/wordpress:/var/www/html environment: WORDPRESS_DB_PASSWORD: root depends_on: - database links: - database

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