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Update migration_guide.md

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@ -12,20 +12,18 @@ When upgrading your existing Habor instance to a newer version, you may need to
1. Log in to the machine that Harbor runs on, stop and remove existing Harbor service if it is still running:
```
cd make/
cd harbor
docker-compose down
```
2. Back up Harbor's current source code so that you can roll back to the current version when it is necessary.
```sh
cd ../..
cd ..
mv harbor /tmp/harbor
```
3. Get the lastest source code from Github:
```sh
git clone https://github.com/vmware/harbor
```
3. Get the lastest Harbor package from Github:
https://github.com/vmware/harbor/releases
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:
@ -45,24 +43,18 @@ When upgrading your existing Habor instance to a newer version, you may need to
docker run -ti --rm -e DB_USR=root -e DB_PWD=xxxx -v /data/database:/var/lib/mysql vmware/harbor-db-migrator up head
```
7. Change to `make/` directory, configure Harbor by modifying the file `harbor.cfg`, you may need to refer to the configuration files you've backed up during step 2. Refer to [Installation & Configuration Guide ](../docs/installation_guide.md) for more info.
7. Unzip your new Harbor package and change to `./harbor` directory, configure Harbor by modifying the file `harbor.cfg`, you may need to refer to the configuration files you've backed up during step 2. Refer to [Installation & Configuration Guide ](../docs/installation_guide.md) for more info. DON'T DIRECTLY COPY `harbor.cfg` FROM PREVIOUS HARBOR DIRECTORY. The content of `harbor.cfg` maybe update in new release.
8. Under the directory `make/`, run the `./prepare` script to generate necessary config files.
8. Under the directory `./harbor`, run the `./install` script to install new Harbor instance.
9. Rebuild Harbor and restart the registry service
```
docker-compose up --build -d
```
### Roll back from an upgrade
For any reason, if you want to roll back to the previous version of Harbor, follow the below steps:
1. Stop and remove the current Harbor service if it is still running.
```
cd make/
cd harbor
docker-compose down
```
2. Restore database from backup file in `/path/to/backup` .
@ -71,21 +63,27 @@ For any reason, if you want to roll back to the previous version of Harbor, foll
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
```
3. Remove current source code of Harbor.
3. Remove current Harbor package.
```
rm -rf harbor
```
4. Restore the source code of an older version of Harbor.
4. Restore the older version package of Harbor.
```sh
mv /tmp/harbor harbor
```
5. Restart Harbor service using the previous configuration.
From source code:
```sh
cd make/
cd harbor
docker-compose up --build -d
```
or Harbor package:
```sh
cd harbor
./install
```
### Migration tool reference
- Use `help` command to show instructions of the migration tool: