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docs/vmbackup: update docs for different authentication options, add examples (#5046)
Updates: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5023 Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
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Zakhar Bessarab
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@ -143,11 +143,14 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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## Advanced usage
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* Obtaining credentials from a file.
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### Providing credentials as a file
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Obtaining credentials from a file.
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Add flag `-credsFilePath=/etc/credentials` with the following content:
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for s3 (aws, minio or other s3 compatible storages):
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- for S3 (AWS, MinIO or other S3 compatible storages):
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```console
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[default]
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@ -155,7 +158,7 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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aws_secret_access_key=thesecretaccesskeyvalue
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```
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for gce cloud storage:
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- for GCP cloud storage:
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```json
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{
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@ -171,24 +174,99 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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"client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/service-account-email"
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}
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```
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* Obtaining credentials from env variables.
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### Providing credentials via env variables
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Obtaining credentials from env variables.
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- For AWS S3 compatible storages set env variable `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY`.
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Also you can set env variable `AWS_SHARED_CREDENTIALS_FILE` with path to credentials file.
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- For GCE cloud storage set env variable `GOOGLE_APPLICATION_CREDENTIALS` with path to credentials file.
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- For Azure storage either set env variables `AZURE_STORAGE_ACCOUNT_NAME` and `AZURE_STORAGE_ACCOUNT_KEY`, or `AZURE_STORAGE_ACCOUNT_CONNECTION_STRING`.
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* Usage with s3 custom url endpoint. It is possible to use `vmbackup` with s3 compatible storages like minio, cloudian, etc.
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Please, note that `vmbackup` will use credentials provided by cloud providers metadata service [when applicable](https://docs.victoriametrics.com/vmbackup.html#using-cloud-providers-metadata-service).
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### Using cloud providers metadata service
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`vmbackup` and `vmbackupmanager` will automatically use cloud providers metadata service in order to obtain credentials if they are running in cloud environment
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and credentials are not explicitly provided via flags or env variables.
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### Providing credentials in Kubernetes
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The simplest way to provide credentials in Kubernetes is to use [Secrets](https://kubernetes.io/docs/concepts/configuration/secret/)
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and inject them into the pod as environment variables. For example, the following secret can be used for AWS S3 credentials:
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```yaml
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apiVersion: v1
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kind: Secret
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metadata:
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name: vmbackup-credentials
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data:
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access_key: key
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secret_key: secret
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```
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And then it can be injected into the pod as environment variables:
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```yaml
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...
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env:
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- name: AWS_ACCESS_KEY_ID
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valueFrom:
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secretKeyRef:
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key: access_key
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name: vmbackup-credentials
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- name: AWS_SECRET_ACCESS_KEY
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valueFrom:
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secretKeyRef:
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key: secret_key
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name: vmbackup-credentials
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...
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```
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A more secure way is to use IAM roles to provide tokens for pods instead of managing credentials manually.
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For AWS deployments it will be required to configure [IAM roles for service accounts](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html).
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In order to use IAM roles for service accounts with `vmbackup` or `vmbackupmanager` it is required to create ServiceAccount with IAM role mapping:
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```yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: monitoring-backups
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annotations:
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eks.amazonaws.com/role-arn: arn:aws:iam::{ACCOUNT_ID}:role/{ROLE_NAME}
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```
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And [configure pod to use service account](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
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After this `vmbackup` and `vmbackupmanager` will automatically use IAM role for service account in order to obtain credentials.
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For GCP deployments it will be required to configure [Workload Identity](https://cloud.google.com/kubernetes-engine/docs/how-to/workload-identity).
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In order to use Workload Identity with `vmbackup` or `vmbackupmanager` it is required to create ServiceAccount with Workload Identity annotation:
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```yaml
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: monitoring-backups
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annotations:
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iam.gke.io/gcp-service-account: {sa_name}@{project_name}.iam.gserviceaccount.com
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```
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And [configure pod to use service account](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
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After this `vmbackup` and `vmbackupmanager` will automatically use Workload Identity for servicpe account in order to obtain credentials.
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### Using custom S3 endpoint
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||||
|
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Usage with s3 custom url endpoint. It is possible to use `vmbackup` with s3 compatible storages like minio, cloudian, etc.
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You have to add a custom url endpoint via flag:
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- for MinIO
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```console
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# for minio
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-customS3Endpoint=http://localhost:9000
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```
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# for aws gov region
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- for aws gov region
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```console
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-customS3Endpoint=https://s3-fips.us-gov-west-1.amazonaws.com
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```
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* Run `vmbackup -help` in order to see all the available options:
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### Command-line flags
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Run `vmbackup -help` in order to see all the available options:
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```console
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-concurrency int
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@ -110,6 +110,9 @@ The result on the GCS bucket
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<img alt="latest folder" src="vmbackupmanager_latest_folder.png">
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Please, see [vmbackup docs](https://docs.victoriametrics.com/vmbackup.html#advanced-usage) for more examples of authentication with different
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storage types.
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## Backup Retention Policy
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Backup retention policy is controlled by:
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@ -154,11 +154,14 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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## Advanced usage
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|
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* Obtaining credentials from a file.
|
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|
||||
### Providing credentials as a file
|
||||
|
||||
Obtaining credentials from a file.
|
||||
|
||||
Add flag `-credsFilePath=/etc/credentials` with the following content:
|
||||
|
||||
for s3 (aws, minio or other s3 compatible storages):
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- for S3 (AWS, MinIO or other S3 compatible storages):
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|
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```console
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[default]
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@ -166,7 +169,7 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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aws_secret_access_key=thesecretaccesskeyvalue
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```
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for gce cloud storage:
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- for GCP cloud storage:
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||||
|
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```json
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{
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@ -182,24 +185,99 @@ See [this article](https://medium.com/@valyala/speeding-up-backups-for-big-time-
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"client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/service-account-email"
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}
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```
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* Obtaining credentials from env variables.
|
||||
|
||||
### Providing credentials via env variables
|
||||
|
||||
Obtaining credentials from env variables.
|
||||
- For AWS S3 compatible storages set env variable `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY`.
|
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Also you can set env variable `AWS_SHARED_CREDENTIALS_FILE` with path to credentials file.
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- For GCE cloud storage set env variable `GOOGLE_APPLICATION_CREDENTIALS` with path to credentials file.
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- For Azure storage either set env variables `AZURE_STORAGE_ACCOUNT_NAME` and `AZURE_STORAGE_ACCOUNT_KEY`, or `AZURE_STORAGE_ACCOUNT_CONNECTION_STRING`.
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* Usage with s3 custom url endpoint. It is possible to use `vmbackup` with s3 compatible storages like minio, cloudian, etc.
|
||||
Please, note that `vmbackup` will use credentials provided by cloud providers metadata service [when applicable](https://docs.victoriametrics.com/vmbackup.html#using-cloud-providers-metadata-service).
|
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### Using cloud providers metadata service
|
||||
|
||||
`vmbackup` and `vmbackupmanager` will automatically use cloud providers metadata service in order to obtain credentials if they are running in cloud environment
|
||||
and credentials are not explicitly provided via flags or env variables.
|
||||
|
||||
### Providing credentials in Kubernetes
|
||||
|
||||
The simplest way to provide credentials in Kubernetes is to use [Secrets](https://kubernetes.io/docs/concepts/configuration/secret/)
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||||
and inject them into the pod as environment variables. For example, the following secret can be used for AWS S3 credentials:
|
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```yaml
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apiVersion: v1
|
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kind: Secret
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metadata:
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name: vmbackup-credentials
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data:
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access_key: key
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secret_key: secret
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```
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And then it can be injected into the pod as environment variables:
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```yaml
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...
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env:
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- name: AWS_ACCESS_KEY_ID
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valueFrom:
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secretKeyRef:
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key: access_key
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name: vmbackup-credentials
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- name: AWS_SECRET_ACCESS_KEY
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valueFrom:
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secretKeyRef:
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key: secret_key
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name: vmbackup-credentials
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...
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```
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A more secure way is to use IAM roles to provide tokens for pods instead of managing credentials manually.
|
||||
|
||||
For AWS deployments it will be required to configure [IAM roles for service accounts](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html).
|
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In order to use IAM roles for service accounts with `vmbackup` or `vmbackupmanager` it is required to create ServiceAccount with IAM role mapping:
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```yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: monitoring-backups
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annotations:
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eks.amazonaws.com/role-arn: arn:aws:iam::{ACCOUNT_ID}:role/{ROLE_NAME}
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```
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And [configure pod to use service account](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
|
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After this `vmbackup` and `vmbackupmanager` will automatically use IAM role for service account in order to obtain credentials.
|
||||
|
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For GCP deployments it will be required to configure [Workload Identity](https://cloud.google.com/kubernetes-engine/docs/how-to/workload-identity).
|
||||
In order to use Workload Identity with `vmbackup` or `vmbackupmanager` it is required to create ServiceAccount with Workload Identity annotation:
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```yaml
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: monitoring-backups
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annotations:
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iam.gke.io/gcp-service-account: {sa_name}@{project_name}.iam.gserviceaccount.com
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```
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And [configure pod to use service account](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
|
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After this `vmbackup` and `vmbackupmanager` will automatically use Workload Identity for servicpe account in order to obtain credentials.
|
||||
|
||||
### Using custom S3 endpoint
|
||||
|
||||
Usage with s3 custom url endpoint. It is possible to use `vmbackup` with s3 compatible storages like minio, cloudian, etc.
|
||||
You have to add a custom url endpoint via flag:
|
||||
|
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- for MinIO
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```console
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# for minio
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-customS3Endpoint=http://localhost:9000
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```
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||||
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# for aws gov region
|
||||
- for aws gov region
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```console
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-customS3Endpoint=https://s3-fips.us-gov-west-1.amazonaws.com
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```
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* Run `vmbackup -help` in order to see all the available options:
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### Command-line flags
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Run `vmbackup -help` in order to see all the available options:
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```console
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-concurrency int
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@ -121,6 +121,9 @@ The result on the GCS bucket
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<img alt="latest folder" src="vmbackupmanager_latest_folder.png">
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||||
|
||||
Please, see [vmbackup docs](https://docs.victoriametrics.com/vmbackup.html#advanced-usage) for more examples of authentication with different
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storage types.
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||||
|
||||
## Backup Retention Policy
|
||||
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||||
Backup retention policy is controlled by:
|
||||
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||||
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