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Dockerize the Existing system installed mysql


i am trying to dockerize current system installed mysql with database, without doing export then import.

i tried to do but my mysql container crashing again and again. If any one did let me know the steps.


You should be able to copy the existing mysql directory, into the docker container.
Regarding the crashing, my guess is that its due to permissions ( check docker logs ContainerID )

What i would do;
1- start a mysql container, with a local mount point.
2- check the permissions of the files created
3- stop the container
4- copy the files from the “old” install (default /var/lib/mysql) to the mounted path
5- be sure that the files have the same permissions as in step #2
6- start the container and check the logs

2019-02-01T16:08:20.100825Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-02-01T16:08:20.101919Z 0 [Note] mysqld (mysqld 5.7.22) starting as process 1 ...
2019-02-01T16:08:20.104031Z 0 [Note] InnoDB: PUNCH HOLE support available
2019-02-01T16:08:20.104043Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2019-02-01T16:08:20.104046Z 0 [Note] InnoDB: Uses event mutexes
2019-02-01T16:08:20.104048Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2019-02-01T16:08:20.104050Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3
2019-02-01T16:08:20.104052Z 0 [Note] InnoDB: Using Linux native AIO
2019-02-01T16:08:20.104214Z 0 [Note] InnoDB: Number of pools: 1
2019-02-01T16:08:20.104285Z 0 [Note] InnoDB: Using CPU crc32 instructions
2019-02-01T16:08:20.105476Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2019-02-01T16:08:20.110790Z 0 [Note] InnoDB: Completed initialization of buffer pool
2019-02-01T16:08:20.112288Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2019-02-01T16:08:20.123892Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2019-02-01T16:08:20.139921Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-02-01T16:08:20.139996Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-02-01T16:08:20.170786Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2019-02-01T16:08:20.173104Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active.
2019-02-01T16:08:20.173143Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active.
2019-02-01T16:08:20.174483Z 0 [Note] InnoDB: Waiting for purge to start
2019-02-01T16:08:20.224878Z 0 [Note] InnoDB: 5.7.22 started; log sequence number 1529088986
2019-02-01T16:08:20.225403Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2019-02-01T16:08:20.225887Z 0 [Note] Plugin 'FEDERATED' is disabled.
2019-02-01T16:08:20.231185Z 0 [Note] InnoDB: Buffer pool(s) load completed at 190201 16:08:20
2019-02-01T16:08:20.233231Z 0 [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
2019-02-01T16:08:20.233502Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
2019-02-01T16:08:20.233535Z 0 [Note] IPv6 is available.
2019-02-01T16:08:20.233544Z 0 [Note]   - '::' resolves to '::';
2019-02-01T16:08:20.233556Z 0 [Note] Server socket created on IP: '::'.
2019-02-01T16:08:20.236451Z 0 [Warning] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
2019-02-01T16:08:20.248740Z 0 [Warning] 'user' entry 'root@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.248832Z 0 [Warning] 'user' entry 'mysql.session@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.248857Z 0 [Warning] 'user' entry 'mysql.sys@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.248875Z 0 [Warning] 'user' entry 'debian-sys-maint@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.248921Z 0 [Warning] 'db' entry 'performance_schema mysql.session@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.248935Z 0 [Warning] 'db' entry 'sys mysql.sys@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.249216Z 0 [Warning] 'proxies_priv' entry '@ root@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.256300Z 0 [Warning] 'tables_priv' entry 'user mysql.session@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.256349Z 0 [Warning] 'tables_priv' entry 'sys_config mysql.sys@localhost' ignored in --skip-name-resolve mode.
2019-02-01T16:08:20.301149Z 0 [Note] Event Scheduler: Loaded 0 events
2019-02-01T16:08:20.301811Z 0 [Note] mysqld: ready for connections.
Version: '5.7.22'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)

So it looks like it started? but you cant connect or?

everything is ok but unable to connect

which command do you use to run this container?

docker-compose up -d