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update migration guide

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wangyan 2017-08-02 15:36:14 +08:00
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docs/migration_guide.md
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@ -4,6 +4,7 @@ When upgrading your existing Habor instance to a newer version, you may need to
*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.*
**NOTE:** From 1.2, you need to use release version as the tag of migrator image. 'latest' is no longer used for new release.
**NOTE:** You must backup your data before any data migration.
@ -28,19 +29,19 @@ When upgrading your existing Habor instance to a newer version, you may need to
4. Before upgrading Harbor, perform database migration first. The migration tool is delivered as a docker image, so you should pull the image from docker hub:
```
docker pull vmware/harbor-db-migrator
docker pull vmware/harbor-db-migrator:[tag]
```
5. Back up database to a directory such as `/path/to/backup`. You need to create the directory if it does not exist. Also, note that the username and password to access the db are provided via environment variable "DB_USR" and "DB_PWD"
```
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup vmware/harbor-db-migrator backup
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup vmware/harbor-db-migrator:[tag] backup
```
6. Upgrade database schema and migrate data:
```
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql vmware/harbor-db-migrator up head
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql vmware/harbor-db-migrator:[tag] up head
```
7. Unzip the new Harbor package and change to `./harbor` as the working directory. Configure Harbor by modifying the file `harbor.cfg`,
@ -75,7 +76,7 @@ For any reason, if you want to roll back to the previous version of Harbor, foll
2. Restore database from backup file in `/path/to/backup` .
```
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup vmware/harbor-db-migrator restore
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql -v /path/to/backup:/harbor-migration/backup vmware/harbor-db-migrator:[tag] restore
```
3. Remove current Harbor instance.
@ -104,8 +105,8 @@ For any reason, if you want to roll back to the previous version of Harbor, foll
### Migration tool reference
- Use `help` command to show instructions of the migration tool:
```docker run --rm -e DB_USR=root -e DB_PWD=xxxx vmware/harbor-db-migrator help```
```docker run --rm -e DB_USR=root -e DB_PWD=xxxx vmware/harbor-db-migrator:[tag] help```
- Use `test` command to test mysql connection:
```docker run --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql vmware/harbor-db-migrator test```
```docker run --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql vmware/harbor-db-migrator:[tag] test```