docker-image: docker.0k.io/nextcloud:18.0.1-myc data-resources: - /var/www/html - /var/lib/nextcloud/data provides: nextcloud-app: uses: sql-database: #constraint: required | recommended | optional #auto: pair | summon | none ## default: pair constraint: required auto: summon solves: database: "main storage" web-proxy: #constraint: required | recommended | optional #auto: pair | summon | none ## default: pair constraint: optional auto: pair solves: proxy: "Public access" default-options: target: !var-expand ${MASTER_BASE_SERVICE_NAME}:80 backup: constraint: recommended auto: pair solves: backup: "Automatic regular backup"