how_to_use_nfsbcp.md

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Quickstart for nfsbcp （Deprecated）

Contents

• Introduction
• How to use
• Example
  • Verify the backup

Introduction

Create backup based on the command line tool nfsbcp to simplify cluster nfs backup steps. Parameters as follows:

Create a nfs backup for RadonDB MySQL cluster

Usage:
  nfsbcp backup [flags]

Flags:
  -b, --backupImage string      The image of backup. (default "radondb/mysql57-sidecar:v2.2.0")
  -s, --capacity string         The capacity of nfs server. (default "30")
  -c, --cluster string          The cluster name to backup.
  -h, --help                    help for backup
  -n, --hostname string         The host for which to take backup.
  -p, --hostpath string         The local storage path of nfs.
  -i, --nfsServerImage string   The image of backup. (default "k8s.gcr.io/volume-nfs:0.8")

How to use

cd bin
./nfsbcp backup -s capacity -c cluster -n hostname -p hostpath -b backupImage -i nfsServerImage

cluster and hostpath are required

The default value of capacity is 30. The default value of hostname is the leader node in cluster. The default value of backupImage is radondb/mysql57-sidecar:v2.2.0. The default value of nfsServerImage is k8s.gcr.io/volume-nfs:0.8.

Example

Create nfs backup for the sample-mysql-0 node of the sample cluster. The mount address of the nfs server is /mnt/radondb-nfs-backup, and the capacity of the nfs server is 40Gi. The image of backup is radondb/mysql57-sidecar:vx.x.x, and the image of nfs server is k8s.gcr.io/volume-nfs:x.x.

./nfsbcp backup -s 40 -c sample -n sample-mysql-0 -p /mnt/radondb-nfs-backup -b radondb/mysql57-sidecar:vx.x.x -i k8s.gcr.io/volume-nfs:x.x

Verify the backup

View the backup directory <cluster name>_<timestamp> as follows.

kubectl exec -it <pod name of nfs server> -- ls /exports
index.html  initbackup  sample_2022419101946