IMAGE redis
LAYER shared/alpine3.9
LAYER redis/redis

RUN EOF
    # Create OS user (which will be picked up later by apk add)
    addgroup -S -g 6379 redis
    adduser -S -u 6379 -h /var/lib/redis -s /bin/false -g redis -G redis redis

    # Install Redis
    apk --no-cache add redis
EOF

MOUNT FILE /srv/redis/conf/redis.conf etc/redis.conf
MOUNT DIR /srv/redis/data var/lib/redis

USER 6379 6379
CMD redis-server /etc/redis.conf