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Harbor 升级和数据库迁移向导 - release-1.5.0 分支.md

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Harbor 升级和数据库迁移向导 - release-1.5.0 分支

ref: https://github.com/goharbor/harbor/blob/release-1.5.0/docs/migration_guide.md

本文仅摘取关键差异部分；

If your install Harbor for the first time, or the database version is the same as that of the lastest version, you do not need any database migration.

首次安装 Harbor 或数据库版本和最新版本相同，则无需进行数据库迁移；

NOTE:

  • From v1.5.0 on, the migration tool add support for the harbor.cfg migration, which supports upgrade from v1.2.x, v1.3.x and v1.4.x.
  • From v1.2 on, you need to use the release version as the tag of the migrator image. 'latest' is no longer used for new release.
  • You must back up your data before any data migration.
  • To migrate harbor OVA, please refer migrate OVA guide

注意：

  • 从 v1.5.0 开始，迁移工具增加了针对 harbor.cfg 迁移的支持；支持以 v1.2.x, v1.3.x 和 v1.4.x 为基础版本的迁移；
  • 从 v1.2 开始，你需要使用 release version 作为 migrator 镜像的 tag ；'latest' 这个 tag 已经不再用作新 release 来使用；
  • 在任何数据迁移前，你必须备份数据；

Upgrading Harbor and migrating data

  • Before upgrading Harbor, perform migration first. The migration tool is delivered as a docker image, so you should pull the image from docker hub. Replace [tag] with the release version of Harbor (e.g. v1.5.0) in the below command:
docker pull vmware/harbor-db-migrator:[tag]

这里的说明存在问题：首先 v1.5.0 是不存在的，详见 https://hub.docker.com/r/vmware/harbor-db-migrator/tags/ ；其次，应该是 vmware/harbor-db-migrator 而不是 vmware/harbor-migrator ，上面已调整；

  • Back up database/harbor.cfg to a directory such as /path/to/backup.

NOTE: Upgrade from harbor 1.2 or older to harbor 1.3 must use vmware/harbor-db-migrator:1.2. Because DB engine replaced by MariaDB in harbor 1.3

注意：从 harbor 1.2 或之前的版本升级到 harbor 1.3 必须使用 vmware/harbor-db-migrator:1.2 ，因为 DB 引擎在 harbor 1.3 中被替换成了 MariaDB ；

docker run -it --rm -e DB_USR=root -e DB_PWD={db_pwd} -v ${harbor_db_path}:/var/lib/mysql -v ${harbor_cfg}:/harbor-migration/harbor-cfg/harbor.cfg -v ${backup_path}:/harbor-migration/backup vmware/harbor-db-migrator:[tag] backup

NOTE: By default, the migrator handles the backup for DB and CFG. If you want to backup DB or CFG only, refer to the following commands:

docker run -it --rm -e DB_USR=root -e DB_PWD={db_pwd} -v ${harbor_db_path}:/var/lib/mysql -v ${backup_path}:/harbor-migration/backup vmware/harbor-db-migrator:[tag] --db backup

docker run -it --rm -v ${harbor_cfg}:/harbor-migration/harbor-cfg/harbor.cfg -v ${backup_path}:/harbor-migration/backup vmware/harbor-db-migrator:[tag] --cfg backup

默认情况下，migrator 会同时备份 DB 和 CFG ；可以通过上述两个命令进行单独备份；

  • Upgrade database schema, harbor.cfg and migrate data.
docker run -it --rm -e DB_USR=root -e DB_PWD={db_pwd} -v ${harbor_db_path}:/var/lib/mysql -v ${harbor_cfg}:/harbor-migration/harbor-cfg/harbor.cfg vmware/harbor-db-migrator:[tag] up

NOTE: By default, the migrator handles the upgrade for DB and CFG. If you want to upgrade DB or CFG only, refer to the following commands:

docker run -it --rm -e DB_USR=root -e DB_PWD={db_pwd} -v ${harbor_db_path}:/var/lib/mysql vmware/harbor-db-migrator:[tag] --db up

docker run -it --rm -v ${harbor_cfg}:/harbor-migration/harbor-cfg/harbor.cfg vmware/harbor-db-migrator:[tag] --cfg up

NOTE: Some errors like

[ERROR] Missing system table mysql.roles_mapping; please run mysql_upgrade to create it
[ERROR] Incorrect definition of table mysql.event: expected column 'sql_mode' at position ... ...
[ERROR] mysqld: Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler.
[Warning] Failed to load slave replication state from table mysql.gtid_slave_pos: 1146: Table 'mysql.gtid_slave_pos' doesn't exist

will be occurred during upgrading from harbor 1.2 to harbor 1.3, just ignore them if harbor can start successfully.

可以忽略的错误信息；

Roll back from an upgrade

NOTE: Rollback from harbor 1.3 to harbor 1.2 should delete /data/database directory first, then create new database directory by docker-compose up -d && docker-compose stop. And must use vmware/harbor-db-migrator:1.2 to restore. Because of DB engine change.

从 harbor 1.3 回滚到 harbor 1.2 要求：先删除 /data/database 目录，之后通过 docker-compose up -d && docker-compose stop 创建新的数据库目录；同时必须使用 vmware/harbor-db-migrator:1.2 进行恢复；

Use test command to test mysql connection:

docker run -it --rm -e DB_USR=root -e DB_PWD={db_pwd} -v ${harbor_db_path}:/var/lib/mysql -v ${harbor_cfg}:/harbor-migration/harbor-cfg/harbor.cfg vmware/harbor-db-migrator:[tag] test

可以使用 test 命令测试 mysql 连接；