How can I migrate centraldogma service smoothly about centraldogma HOT 1 OPEN

The whole important information for Central Dogma repositories and metadata are stored in the data folder. If you simply copy the snapshot to the new cluster, all data will be restored in the new server set.

1. To safely back up the data, we have to update the server's status to stop the replication mode and enter the read-only mode via REST API. Note that an administrative token should be used to update the server's status.

$ curl -X PATCH \
    -H 'Authorization: bearer appToken-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' \
    -H 'Content-Type: application/json-patch+json' \
    -d '[{ "op": "replace", "path": "/writable", "value": false },
         { "op": "replace", "path": "/replicating", "value": false }]' \
    -w "\nStatus: %{http_code}\n" \
    http://host:36462/api/v1/status

2. Double-check if replication is stopped:

$ curl \
    -H 'Authorization: bearer appToken-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' \
    http://host:36462/api/v1/status

3. Once the cluster enters the read-only mode, create a snapshot of the data folder and copy it to the new cluster. _mirrors and _zookeeper could be excluded from the snapshot.

from centraldogma.