The following example sets up the Velero server and client, then backs up and restores a sample application.
For simplicity, the example uses Minio, an S3-compatible storage service that runs locally on your cluster. For additional functionality with this setup, see the section below on how to expose Minio outside your cluster.
NOTE The example lets you explore basic Velero functionality. Configuring Minio for production is out of scope.
See Set up Velero on your platform for how to configure Velero for a production environment.
If you encounter issues with installing or configuring, see Debugging Installation Issues.
kubectl
installedOn macOS, you can use
Homebrew to install the velero
client:
brew install velero
Download the latest official release’s tarball for your client platform.
We strongly recommend that you use an
official release of
Velero. The tarballs for each release contain the velero
command-line client. The code in the main branch
of the Velero repository is under active development and is not guaranteed to be stable!
Extract the tarball:
tar -xvf <RELEASE-TARBALL-NAME>.tar.gz -C /dir/to/extract/to
The directory you extracted is called the “Velero directory” in subsequent steps.
Move the velero
binary from the Velero directory to somewhere in your PATH.
These instructions start the Velero server and a Minio instance that is accessible from within the cluster only. See
Expose Minio outside your cluster for information about configuring your cluster for outside access to Minio. Outside access is required to access logs and run velero describe
commands.
Create a Velero-specific credentials file (credentials-velero
) in your Velero directory:
[default]
aws_access_key_id = minio
aws_secret_access_key = minio123
Start the server and the local storage service. In the Velero directory, run:
kubectl apply -f examples/minio/00-minio-deployment.yaml
Note: The example Minio yaml provided uses “empty dir”. Your node needs to have enough space available to store the data being backed up plus 1GB of free space. If the node does not have enough space, you can modify the example yaml to use a Persistent Volume instead of “empty dir”
velero install \
--provider aws \
--plugins velero/velero-plugin-for-aws:v1.2.1 \
--bucket velero \
--secret-file ./credentials-velero \
--use-volume-snapshots=false \
--backup-location-config region=minio,s3ForcePathStyle="true",s3Url=http://minio.velero.svc:9000
This example assumes that it is running within a local cluster without a volume provider capable of snapshots, so no VolumeSnapshotLocation
is created (--use-volume-snapshots=false
). You may need to update AWS plugin version to one that is
compatible with the version of Velero you are installing.
Additionally, you can specify --use-restic
to enable restic support, and --wait
to wait for the deployment to be ready.
This example also assumes you have named your Minio bucket “velero”.
Deploy the example nginx application:
kubectl apply -f examples/nginx-app/base.yaml
Check to see that both the Velero and nginx deployments are successfully created:
kubectl get deployments -l component=velero --namespace=velero
kubectl get deployments --namespace=nginx-example
Create a backup for any object that matches the app=nginx
label selector:
velero backup create nginx-backup --selector app=nginx
Alternatively if you want to backup all objects except those matching the label backup=ignore
:
velero backup create nginx-backup --selector 'backup notin (ignore)'
(Optional) Create regularly scheduled backups based on a cron expression using the app=nginx
label selector:
velero schedule create nginx-daily --schedule="0 1 * * *" --selector app=nginx
Alternatively, you can use some non-standard shorthand cron expressions:
velero schedule create nginx-daily --schedule="@daily" --selector app=nginx
See the cron package’s documentation for more usage examples.
Simulate a disaster:
kubectl delete namespace nginx-example
To check that the nginx deployment and service are gone, run:
kubectl get deployments --namespace=nginx-example
kubectl get services --namespace=nginx-example
kubectl get namespace/nginx-example
You should get no results.
NOTE: You might need to wait for a few minutes for the namespace to be fully cleaned up.
Run:
velero restore create --from-backup nginx-backup
Run:
velero restore get
After the restore finishes, the output looks like the following:
NAME BACKUP STATUS WARNINGS ERRORS CREATED SELECTOR
nginx-backup-20170727200524 nginx-backup Completed 0 0 2017-07-27 20:05:24 +0000 UTC <none>
NOTE: The restore can take a few moments to finish. During this time, the STATUS
column reads InProgress
.
After a successful restore, the STATUS
column is Completed
, and WARNINGS
and ERRORS
are 0. All objects in the nginx-example
namespace should be just as they were before you deleted them.
If there are errors or warnings, you can look at them in detail:
velero restore describe <RESTORE_NAME>
For more information, see the debugging information.
If you want to delete any backups you created, including data in object storage and persistent volume snapshots, you can run:
velero backup delete BACKUP_NAME
This asks the Velero server to delete all backup data associated with BACKUP_NAME
. You need to do
this for each backup you want to permanently delete. A future version of Velero will allow you to
delete multiple backups by name or label selector.
Once fully removed, the backup is no longer visible when you run:
velero backup get BACKUP_NAME
To completely uninstall Velero, minio, and the nginx example app from your Kubernetes cluster:
kubectl delete namespace/velero clusterrolebinding/velero
kubectl delete crds -l component=velero
kubectl delete -f examples/nginx-app/base.yaml
When you run commands to get logs or describe a backup, the Velero server generates a pre-signed URL to download the requested items. To access these URLs from outside the cluster – that is, from your Velero client – you need to make Minio available outside the cluster. You can:
ClusterIP
to NodePort
.ClusterIP
.You can also specify a publicUrl
config field for the pre-signed URL in your backup storage location config.
The Minio deployment by default specifies a Service of type ClusterIP
. You can change this to NodePort
to easily expose a cluster service externally if you can reach the node from your Velero client.
You must also get the Minio URL, which you can then specify as the value of the publicUrl
field in your backup storage location config.
In examples/minio/00-minio-deployment.yaml
, change the value of Service spec.type
from ClusterIP
to NodePort
.
Get the Minio URL:
if you’re running Minikube:
minikube service minio --namespace=velero --url
in any other environment:
Get the value of an external IP address or DNS name of any node in your cluster. You must be able to reach this address from the Velero client.
Append the value of the NodePort to get a complete URL. You can get this value by running:
kubectl -n velero get svc/minio -o jsonpath='{.spec.ports[0].nodePort}'
BackupStorageLocation
YAML, adding publicUrl: <URL_FROM_PREVIOUS_STEP>
as a field under spec.config
. You must include the http://
or https://
prefix.If you’re using Minio with HTTPS, you may see unintelligible text in the output of velero describe
, or velero logs
commands.
To fix this, you can add a public URL to the BackupStorageLocation
.
In a terminal, run the following:
kubectl patch -n velero backupstoragelocation default --type merge -p '{"spec":{"config":{"publicUrl":"https://<a public IP for your Minio instance>:9000"}}}'
If your certificate is self-signed, see the documentation on self-signed certificates.
Kubernetes in Docker does not have support for NodePort services (see this issue). In this case, you can use a port forward to access the Minio bucket.
In a terminal, run the following:
MINIO_POD=$(kubectl get pods -n velero -l component=minio -o jsonpath='{.items[0].metadata.name}')
kubectl port-forward $MINIO_POD -n velero 9000:9000
Then, in another terminal:
kubectl edit backupstoragelocation default -n velero
Add publicUrl: http://localhost:9000
under the spec.config
section.
Configuring Ingress for your cluster is out of scope for the Velero documentation. If you have already set up Ingress, however, it makes sense to continue with it while you run the example Velero configuration with Minio.
In this case:
Keep the Service type as ClusterIP
.
Edit your BackupStorageLocation
YAML, adding publicUrl: <URL_AND_PORT_OF_INGRESS>
as a field under spec.config
.
To help you get started, see the documentation.