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Signed-off-by: SK Ali Arman <[email protected]>
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@sheikh-arman
sheikh-arman committed Dec 12, 2024
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77 changes: 43 additions & 34 deletions docs/guides/mysql/pitr/restic/archiver.md
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,8 @@ section_menu_id: guides
# KubeDB MySQL - Continuous Archiving and Point-in-time Recovery Using Restic Driver

Here, we will demonstrate how to use KubeDB to provision a MySQL database for continuous archiving and point-in-time restoration.
Here, we will demonstrate how to use KubeDB to provision a MySQL database with continuous archiving capabilities, also show point-in-time restoration.

This process utilizes [Percona XtraBackup](https://www.percona.com/mysql/software/percona-xtrabackup), a robust tool for taking physical backups of MySQL databases, ensuring data integrity and consistency. We use XtraBackup as the base backup for our MySQL archiver.
Let's explore how we use XtraBackup in MySQL database archiving.
## Before You Begin
Expand Down Expand Up @@ -165,11 +166,11 @@ stringData:
```

```bash
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/restic/yamls/mysqlarchiver.yaml
mysqlarchiver.archiver.kubedb.com/mysqlarchiver-sample created
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/restic/yamls/encryptionSecret.yaml
secret/encrypt-secret created
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/restic/yamls/mysqlarchiver.yaml
mysqlarchiver.archiver.kubedb.com/mysqlarchiver-sample created
```

# Deploy MySQL
Expand All @@ -195,10 +196,6 @@ spec:
resources:
requests:
storage: 1Gi
archiver:
ref:
name: mysqlarchiver-sample
namespace: demo
deletionPolicy: WipeOut
```

Expand All @@ -207,6 +204,17 @@ spec:
mysql.kubedb.com/mysql created
```

```bash
$ kubectl get pod -n demo
NAME READY STATUS RESTARTS AGE
mysql-0 2/2 Running 0 15m
mysql-1 2/2 Running 0 15m
mysql-2 2/2 Running 0 15m
```

Once the MySQL database is ready and backup storage is prepared, the MySQL Archiver object will trigger the KubeDB Operator to create a sidekick pod. Subsequently, the KubeStash Operator will generate a full backup along with a manifest backup.

```bash
$ kubectl get pod -n demo
NAME READY STATUS RESTARTS AGE
Expand All @@ -220,9 +228,11 @@ retention-policy-mysql-archiver-full-backup-1733120326-7rx9t 0/1 Comple
retention-policy-mysql-archiver-manifest-backup-1733120326l79mb 0/1 Completed 0 9m56s
```

`mysql-sidekick` is responsible for uploading binlog files
Here,

`mysql-sidekick` pod is responsible for uploading binlog files

`mysql-archiver-full-backup-1733120326-4n8nd` is responsible for creating the base backup of MySQL.
`mysql-archiver-full-backup-1733120326-4n8nd` pod is responsible for creating the base backup of MySQL.

`mysql-archiver-manifest-backup-1733120326-9gw4f` is the pod of the manifest backup related to MySQL object.

Expand Down Expand Up @@ -326,10 +336,32 @@ mysql> select now();
| 2024-12-02 06:38:42 |
+---------------------+
```
### Restore MySQL
### ReplicationStrategy
The ReplicationStrategy determines how MySQL restores are managed when using the Restic driver in a group replication setup. We support three strategies: `none`, `sync`, and `fscopy`, with `none` being the default.
To configure the desired strategy, set the `spec.init.archiver.replicationStrategy` field in your MySQL Database manifest. These strategies are applicable only when restoring a MySQL database in group replication mode.
**Strategies Overview:**
***none***
Each MySQL replica independently restores the base backup and binlog files. After completing the restore process, the replicas individually join the replication group.
***sync***
The base backup and binlog files are restored exclusively on pod-0. Other replicas then synchronize their data by leveraging the MySQL clone plugin to replicate from pod-0.
***fscopy***
The base backup and binlog files are restored on pod-0. The data is then copied from pod-0's data directory to the data directories of other replicas using file system copy. Once the data transfer is complete, the group replication process begins.
Please note that `fscopy` does not support cross-zone operations.
Choose the replication strategy that best fits your restoration and replication requirements. On this demonstration, we have used the `sync` replication strategy.
### Restore MySQL
```yaml
apiVersion: kubedb.com/v1
kind: MySQL
Expand Down Expand Up @@ -410,29 +442,6 @@ mysql> select count(*) from demo_table;
**so we are able to successfully recover from a disaster**
**ReplicationStrategy**
The ReplicationStrategy determines how MySQL restores are managed when using the Restic driver in a group replication setup. We support three strategies: `none`, `sync`, and `fscopy`, with `none` being the default.
To configure the desired strategy, set the `spec.init.archiver.replicationStrategy` field in your MySQL Database manifest. These strategies are applicable only when restoring a MySQL database in group replication mode.
**Strategies Overview:**
***none***
Each MySQL replica independently restores the base backup and binlog files. After completing the restore process, the replicas individually join the replication group.
***sync***
The base backup and binlog files are restored exclusively on pod-0. Other replicas then synchronize their data by leveraging the MySQL clone plugin to replicate from pod-0.
***fscopy***
The base backup and binlog files are restored on pod-0. The data is then copied from pod-0's data directory to the data directories of other replicas using file system copy. Once the data transfer is complete, the group replication process begins.
Please note that `fscopy` does not support cross-zone operations.
Choose the replication strategy that best fits your restoration and replication requirements. On this demonstration, we have used the `sync` replication strategy.
## Cleaning up
Expand Down
79 changes: 46 additions & 33 deletions docs/guides/mysql/pitr/volumesnapshot/archiver.md
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ section_menu_id: guides
# KubeDB MySQL - Continuous Archiving and Point-in-time Recovery using VolumeSnapshot

Here, will show you how to use KubeDB to provision a MySQL to Archive continuously and Restore point-in-time.
Here, will show you how to use KubeDB to provision a MySQL to Archive continuously, also show point-in-time restoration.

## Before You Begin

Expand Down Expand Up @@ -171,10 +171,12 @@ stringData:
```

```bash
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/volumesnapshot/yamls/mysqlarchiver.yaml
mysqlarchiver.archiver.kubedb.com/mysqlarchiver-sample created
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/volumesnapshot/yamls/encryptionSecret.yaml
secret/encrypt-secret created
$ kubectl create -f https://github.com/kubedb/docs/raw/{{< param "info.version" >}}/docs/guides/mysql/pitr/volumesnapshot/yamls/mysqlarchiver.yaml
mysqlarchiver.archiver.kubedb.com/mysqlarchiver-sample created
```

## Ensure VolumeSnapshotClass
Expand Down Expand Up @@ -238,6 +240,16 @@ spec:
deletionPolicy: WipeOut
```

```bash
$ kubectl get pod -n demo
NAME READY STATUS RESTARTS AGE
mysql-0 2/2 Running 0 28h
mysql-1 2/2 Running 0 28h
mysql-2 2/2 Running 0 28h
```

Once the MySQL database is ready and backup storage is prepared, the MySQL Archiver object will trigger the KubeDB Operator to create a sidekick pod. Subsequently, the KubeStash Operator will generate a full backup along with a manifest backup.

```bash
$ kubectl get pod -n demo
Expand All @@ -253,11 +265,11 @@ retention-policy-mysql-archiver-manifest-backup-1733206003skwqc 0/1 Comple
```

`mysql-sidekick` is responsible for uploading binlog files
`mysql-sidekick` pod is responsible for uploading binlog files

`mysql-backup-config-full-backup-1703680982-vqf7c` are the pod of volumes levels backups for MySQL.
`mysql-backup-config-full-backup-1703680982-vqf7c` is the pod of volumes levels backups for MySQL.

`mysql-backup-config-manifest-1703680982-62x97` are the pod of the manifest backup related to MySQL object
`mysql-backup-config-manifest-1703680982-62x97` is the pod of the manifest backup related to MySQL object

`retention-policy-mysql-archiver-full-backup-1733206003-b2b42` will automatically clean up previous full-backup of volumesnapshots according to the rules defined in the `mysql-retention-policy` custom resource (CR).

Expand Down Expand Up @@ -364,8 +376,35 @@ mysql> select now();
| 2024-12-03 06:09:34 |
+---------------------+
```
### Restore MySQL
### ReplicationStrategy
The ReplicationStrategy determines how MySQL restores are managed when using the VolumeSnapshot. We support three strategies: `none`, `sync`, and `fscopy`, with `none` being the default.
To configure the desired strategy, set the `spec.init.archiver.replicationStrategy` field in your configuration. These strategies are applicable only when restoring a MySQL database in group replication mode.
**Strategies Overview:**
***none***
Each MySQL replica independently restores the base backup volumesnapshot and binlog files. After completing the restore process, the replicas individually join the replication group.
***sync***
The base backup volumesnapshot and binlog files are restored exclusively on pod-0. Other replicas then synchronize their data by leveraging the MySQL clone plugin to replicate from pod-0.
***fscopy***
The base backup and binlog files are restored on pod-0. The data is then copied from pod-0's data directory to the data directories of other replicas using file system copy. Once the data transfer is complete, the group replication process begins. Please note that `fscopy` does not support cross-zone operations.
***clone***
If you have a different type of base backup(ex: VolumeSnapshot, Restic), the clone process will ensure that the VolumeSnapshot is restored as the base backup. Each MySQL replica independently restores the base backup volumesnapshot and binlog files. After completing the restore process, the replicas individually join the replication group.
Choose the replication strategy that best fits your restoration and replication requirements. On this demonstration, we have used the sync replication strategy.
### Restore MySQL
```yaml
apiVersion: kubedb.com/v1
kind: MySQL
Expand Down Expand Up @@ -443,32 +482,6 @@ mysql> select count(*) from demo_table;
**so we are able to successfully recover from a disaster**
**ReplicationStrategy**
The ReplicationStrategy determines how MySQL restores are managed when using the VolumeSnapshot. We support three strategies: `none`, `sync`, and `fscopy`, with `none` being the default.
To configure the desired strategy, set the `spec.init.archiver.replicationStrategy` field in your configuration. These strategies are applicable only when restoring a MySQL database in group replication mode.
**Strategies Overview:**
***none***
Each MySQL replica independently restores the base backup volumesnapshot and binlog files. After completing the restore process, the replicas individually join the replication group.
***sync***
The base backup volumesnapshot and binlog files are restored exclusively on pod-0. Other replicas then synchronize their data by leveraging the MySQL clone plugin to replicate from pod-0.
***fscopy***
The base backup and binlog files are restored on pod-0. The data is then copied from pod-0's data directory to the data directories of other replicas using file system copy. Once the data transfer is complete, the group replication process begins. Please note that `fscopy` does not support cross-zone operations.
***clone***
If you have a different type of base backup(ex: VolumeSnapshot, Restic), the clone process will ensure that the VolumeSnapshot is restored as the base backup. Each MySQL replica independently restores the base backup volumesnapshot and binlog files. After completing the restore process, the replicas individually join the replication group.
Choose the replication strategy that best fits your restoration and replication requirements. On this demonstration, we have used the sync replication strategy.
## Cleaning up
Expand Down

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