我不能代替标准 /etc/my.cnf 标准MySQL5.7容器中的文件。
我正在运行一个mysql 5.7容器（标准docker hub映像）。我想换新的 etc/my.cnf 文件以启用主从操作。我想通过从 docker-compose.yml 文件。
新的 my.cnf 应该是：

# For advice on how to change settings please see

# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html

[mysqld]

# 

# Remove leading # and set to the amount of RAM for the most important data

# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

# innodb_buffer_pool_size = 128M

# 

# Remove leading # to turn on a very important data integrity option: logging

# changes to the binary log between backups.

# log_bin

# 

# Remove leading # to set options mainly useful for reporting servers.

# The server defaults are faster for transactions and fast SELECTs.

# Adjust sizes as needed, experiment to find the optimal values.

# join_buffer_size = 128M

# sort_buffer_size = 2M

# read_rnd_buffer_size = 2M

skip-host-cache
skip-name-resolve
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
secure-file-priv=/var/lib/mysql-files
user=mysql

# Replication and mirroring settings

server-id = 1
auto_increment_increment = 3
auto_increment_offset = 0
log_bin           = /var/log/mysql/log-bin
log_bin_index     = /var/log/mysql/log-bin.index
binlog_format     = row
expire_logs_days  = 10
log_slave_updates

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

在 docker-compose.yml 我有以下几行：

mysql:
    image: mysql/mysql-server:5.7
    container_name: rucio-mysql
    volumes:
      - ./mysql-config/my-master.cnf:/etc/my.cnf
    environment:
      - MYSQL_ROOT_PASSWORD=pass
      - MYSQL_ROOT_HOST=%

路径是正确的，但是容器立即启动并退出。
提前谢谢，
滑