How to transfer data to Rahti?
to a Persistent Volume
In order to move data to Rahti, the best method is to use the command line tool
oc rsync. From its manual:
$ oc rsync Copy local files to or from a pod container This command will copy local files to or from a remote container. It only copies the changed files using the rsync command from your OS. To ensure optimum performance, install rsync locally. In UNIX systems, use your package manager. In Windows, install cwRsync from https://www.itefix.net/cwrsync.
First of all, it is required to install oc.
oc is installed, the process is:
- Create the
PersistentVolumeClaim(PVC) to store the data in Rahti. You may use the web interface or directly the command line. In this example we will use the command line. A simple way to create a
$ echo 'apiVersion: v1 kind: PersistentVolumeClaim metadata: name: testing-pvc spec: accessModes: - ReadWriteMany resources: requests: storage: 1Gi' | oc create -f -
Mount the PVC into a POD with
rsyncinstalled. It is possible to use any image that has the command
rsyncinstalled. If you have no access to such an image,
oc rsyncwill work also with an image with
ubuntuimages come with `tar installed).
oc rsyncto synchronize a local directory with a directory in the pod:
oc rsync ./local/dir/ POD:/remote/dir
If the local data changes, you may just run the same command again. If the image has `rsync installed, only the data that has changed will be copied over to the PVC.
to Allas object storage
See using Allas with Rclone for a guide on how to copy the data to Allas. Once the data is in Allas, you can use any Swift or S3 compatible client or library, like
rclone, to use the data in you application.
Last edited Tue Sep 8 2020