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<!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **New Features** - Introduced support for cluster restoration from backup with new bootstrap configuration options. - Added a ScheduledBackup resource for automated PostgreSQL backups using a more flexible backup configuration. - **Improvements** - Simplified and modernized backup configuration with new parameters for retention policy, destination path, and endpoint URL. - Updated backup scheduling to use a 6-field cron expression for more precise timing. - Changed default resource preset from "nano" to "micro" for improved performance. - **Removals** - Removed legacy backup scripts, Docker image, and Kubernetes CronJob templates related to the old backup system. - **Documentation** - Updated documentation to reflect the new backup and bootstrap parameters, and revised backup instructions. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Managed PostgreSQL Service
PostgreSQL is currently the leading choice among relational databases, known for its robust features and performance. Our Managed PostgreSQL Service takes advantage of platform-side implementation to provide a self-healing replicated cluster. This cluster is efficiently managed using the highly acclaimed CloudNativePG operator, which has gained popularity within the community.
Deployment Details
This managed service is controlled by the CloudNativePG operator, ensuring efficient management and seamless operation.
HowTos
How to switch master/slave replica
See:
How to restore backup
find snapshot:
restic -r s3:s3.example.org/postgres-backups/database_name snapshots
restore:
restic -r s3:s3.example.org/postgres-backups/database_name restore latest --target /tmp/
more details:
Parameters
Common parameters
| Name | Description | Value |
|---|---|---|
external |
Enable external access from outside the cluster | false |
size |
Persistent Volume size | 10Gi |
replicas |
Number of Postgres replicas | 2 |
storageClass |
StorageClass used to store the data | "" |
postgresql.parameters.max_connections |
Determines the maximum number of concurrent connections to the database server. The default is typically 100 connections | 100 |
quorum.minSyncReplicas |
Minimum number of synchronous replicas that must acknowledge a transaction before it is considered committed. | 0 |
quorum.maxSyncReplicas |
Maximum number of synchronous replicas that can acknowledge a transaction (must be lower than the number of instances). | 0 |
Configuration parameters
| Name | Description | Value |
|---|---|---|
users |
Users configuration | {} |
databases |
Databases configuration | {} |
Backup parameters
| Name | Description | Value |
|---|---|---|
backup.enabled |
Enable pereiodic backups | false |
backup.schedule |
Cron schedule for automated backups | 0 2 * * * * |
backup.retentionPolicy |
The retention policy | 30d |
backup.destinationPath |
The path where to store the backup (i.e. s3://bucket/path/to/folder) | s3://BUCKET_NAME/ |
backup.endpointURL |
Endpoint to be used to upload data to the cloud | http://minio-gateway-service:9000 |
backup.s3AccessKey |
The access key for S3, used for authentication | oobaiRus9pah8PhohL1ThaeTa4UVa7gu |
backup.s3SecretKey |
The secret key for S3, used for authentication | ju3eum4dekeich9ahM1te8waeGai0oog |
Bootstrap parameters
| Name | Description | Value |
|---|---|---|
bootstrap.enabled |
Restore cluster from backup | false |
bootstrap.recoveryTime |
Time stamp up to which recovery will proceed, expressed in RFC 3339 format, if empty, will restore latest | "" |
bootstrap.oldName |
Name of cluster before deleting | "" |
resources |
Resources | {} |
resourcesPreset |
Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if resources is set (resources is recommended for production). | micro |