Docker编写mysql:import.sql

我的docker compose脚本成功地运行了mysql/mariadb服务，并将包含数据库架构的“init.sql”脚本复制到“/docker entrypoint initdb.d”。但是，sql脚本从未像它应该的那样执行

没有错误，日志中没有任何内容。我检查了sql文件是否复制到容器中的正确位置。我检查了脚本在空数据库上运行时是否没有错误

我错过了什么？如果脚本被执行（并且出于某种原因什么也没做），它在日志中是否可见

（编辑：docker compose版本：1.8.1，图像：10.1.21）

---

查看mariadb映像文件的源代码，该脚本应该执行

init.sql

，很明显

仅当容器之前不包含数据库时（脚本的第76行），才会执行脚本，并且

将有一个日志输出，通知您脚本已被调用

要使用

docker compose实现这一点，您必须停止服务，移除容器（以摆脱数据库），然后重新启动：

docker-compose stop
docker-compose rm
docker-compose start

以下是图像行为的示例，仅使用
.sh
文件而不是
.sql
：

$ cat hello.sh 
echo "This is output of the hello script"
$ docker run -it -v `pwd`/hello.sh:/docker-entrypoint-initdb.d/hello.sh -v mariadb_test:/var/lib/mysql -e MYSQL_RANDOM_ROOT_PASSWORD=1 mariadb   
Initializing database
2017-02-09 14:13:54 140617005938624 [Note] /usr/sbin/mysqld (mysqld 10.1.21-MariaDB-1~jessie) starting as process 63 ...
2017-02-09 14:13:54 140617005938624 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2017-02-09 14:13:54 140617005938624 [Note] InnoDB: The InnoDB memory heap is disabled
2017-02-09 14:13:54 140617005938624 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
[...]
2017-02-09 14:14:03 139836212086528 [Note] InnoDB: Dumping buffer pool(s) not yet started
2017-02-09 14:14:03 139836971521984 [Note] Plugin 'FEEDBACK' is disabled.
2017-02-09 14:14:03 139836971521984 [Warning] 'user' entry 'root@830dbd0908f3' ignored in --skip-name-resolve mode.
2017-02-09 14:14:03 139836971521984 [Warning] 'proxies_priv' entry '@% root@830dbd0908f3' ignored in --skip-name-resolve mode.
2017-02-09 14:14:03 139836971521984 [Note] mysqld: ready for connections.
Version: '10.1.21-MariaDB-1~jessie'  socket: '/var/run/mysqld/mysqld.sock'  port: 0  mariadb.org binary distribution
Warning: Unable to load '/usr/share/zoneinfo/leap-seconds.list' as time zone. Skipping it.
GENERATED ROOT PASSWORD: dau6voh4eej2jooRohpiop4eh6ahl7Uz
2017-02-09 14:14:05 139836970654464 [Warning] 'proxies_priv' entry '@% root@830dbd0908f3' ignored in --skip-name-resolve mode.

/usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/hello.sh
This is output of the hello script

2017-02-09 14:14:05 139836970351360 [Note] mysqld: Normal shutdown

2017-02-09 14:14:05 139836970351360 [Note] Event Scheduler: Purging the queue. 0 events
2017-02-09 14:14:05 139836195301120 [Note] InnoDB: FTS optimize thread exiting.
2017-02-09 14:14:05 139836970351360 [Note] InnoDB: Starting shutdown...
2017-02-09 14:14:05 139836970351360 [Note] InnoDB: Waiting for page_cleaner to finish flushing of buffer pool
2017-02-09 14:14:07 139836970351360 [Note] InnoDB: Shutdown completed; log sequence number 1616829
2017-02-09 14:14:07 139836970351360 [Note] mysqld: Shutdown complete


MySQL init process done. Ready for start up.
[...]

您可以在日志输出的某处看到，
hello.sh
脚本的调用及其标准输出被隐藏。在随后启动容器时，不会执行脚本，因为数据库已创建（在本地卷中）：

也许有点晚了，但我找到了另一个更准确的解决方案

通过
依赖于
和
健康检查
，在mysql转储完成之前不要运行后端。唯一的细节是您必须使用2.1版运行它

# docker-compose.yml

version: '2.1'
volumes:
  data-volume: {}
services:
  mysql:
    image: mariadb
    ports:
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: pwd
      MYSQL_DATABASE: users_db
    depends_on:
      backend:
        condition: service_healthy
    volumes:
      - data-volume:/var/lib/mysql
      - ./resources/docker-sql/init.sql:/docker-entrypoint-initdb.d/init.sql
  backend:
    image: myapp
    ports:
      - "8000:80"
    depends_on:
      - mysql
    links:
      - mysql
    healthcheck:
      test: "/usr/bin/mysql --user=root --password=you_pass --database=your_db --execute \"SELECT * FROM last_table_of_your_dump;\""
      interval: 10s
      timeout: 3s
      retries: 10

根据（应该执行
init.sql
的脚本）的源代码，如果执行，日志中应该有一行（第154行）。能否添加
docker日志的输出？此外，您的脚本只会在容器第一次启动时执行（第76行）！你必须在两次尝试之间删除它。哦，我确实必须删除容器。谢谢
docker compose stop
，
docker compose rm
，
docker compose up
。你们谁能写一个正式答案？：）但是请注意，没有打印与实际运行的sql脚本相关的日志。也许有一个冗长的选项。但这已经不是问题了。如果@fzgregor没有写一个答案，我明天就写。其他人有问题吗？命令
docker compose stop docker compose rm
非常关键，因为它们可以帮助你重新开始。否则，您对撰写文件的更改可能不会生效。@gideomaina您缺少&&符号<代码>docker compose停止（&docker compose rm
）。我曾经为我工作过
docker-compose-down和&docker-compose-up。是的，你是对的@Oscar
$ docker run -it -v `pwd`/hello.sh:/docker-entrypoint-initdb.d/hello.sh -v mariadb_test:/var/lib/mysql -e MYSQL_RANDOM_ROOT_PASSWORD=1 mariadb
2017-02-09 14:19:13 140155189532608 [Note] mysqld (mysqld 10.1.21-MariaDB-1~jessie) starting as process 1 ...
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: The InnoDB memory heap is disabled
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Using Linux native AIO
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Using SSE crc32 instructions
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Initializing buffer pool, size = 256.0M
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Completed initialization of buffer pool
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Highest supported file format is Barracuda.
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: 128 rollback segment(s) are active.
2017-02-09 14:19:13 140155189532608 [Note] InnoDB: Waiting for purge to start
2017-02-09 14:19:13 140155189532608 [Note] InnoDB:  Percona XtraDB (http://www.percona.com) 5.6.34-79.1 started; log sequence number 1616839
2017-02-09 14:19:13 140154429736704 [Note] InnoDB: Dumping buffer pool(s) not yet started
2017-02-09 14:19:13 140155189532608 [Note] Plugin 'FEEDBACK' is disabled.
2017-02-09 14:19:13 140155189532608 [Note] Server socket created on IP: '::'.
2017-02-09 14:19:13 140155189532608 [Warning] 'proxies_priv' entry '@% root@830dbd0908f3' ignored in --skip-name-resolve mode.
2017-02-09 14:19:13 140155189532608 [Note] mysqld: ready for connections.
Version: '10.1.21-MariaDB-1~jessie'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  mariadb.org binary distribution

# docker-compose.yml

version: '2.1'
volumes:
  data-volume: {}
services:
  mysql:
    image: mariadb
    ports:
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: pwd
      MYSQL_DATABASE: users_db
    depends_on:
      backend:
        condition: service_healthy
    volumes:
      - data-volume:/var/lib/mysql
      - ./resources/docker-sql/init.sql:/docker-entrypoint-initdb.d/init.sql
  backend:
    image: myapp
    ports:
      - "8000:80"
    depends_on:
      - mysql
    links:
      - mysql
    healthcheck:
      test: "/usr/bin/mysql --user=root --password=you_pass --database=your_db --execute \"SELECT * FROM last_table_of_your_dump;\""
      interval: 10s
      timeout: 3s
      retries: 10