coreos/etcd-operatorArchived
Etcd Operator
The etcd-operator is a custom resource controller designed to automate the deployment, scaling, backup, and recovery of distributed key-value storage clusters on container orchestration platforms. By extending container orchestration APIs with custom resource definitions, the system manages multi-node database instances through declarative configuration files and a continuous controller reconciliation loop that drives cluster provisioning, scaling, and maintenance.
The operator provides automated cluster member recovery, detecting unresponsive nodes and executing membership replacements to preserve quorum integrity and high availability without manual intervention. It supports sequential rolling upgrades to update running instances to newer software versions incrementally, point-in-time state snapshot backups persisted to external object storage for disaster recovery, and dynamic scaling of cluster members. Management operations can be scoped to isolated logical environments or handled cluster-wide from a single deployment instance.
Additional capabilities cover compute and storage allocation, pod placement control and anti-affinity rules, TLS transport security, metric exposure for observability, and external service routing via load balancers. Administrators can also pause automated reconciliation loops to perform manual maintenance tasks.
Features
- etcd Cluster Installations - Automates the deployment, scaling, backup, and recovery of distributed etcd key-value clusters.
- Distributed Storage Clusters - Deploys and manages distributed key-value storage clusters on container orchestration platforms.
- Operators - Acts as a dedicated Kubernetes operator automating etcd deployment, scaling, backup, and recovery.
- Cluster Backups - Captures point-in-time snapshots of cluster state and rebuilds storage instances from backups.
- Cluster Restorations - Recreates clusters from backups stored in cloud object storage and hands over ongoing management.
- Reconciliation Loops - Monitors cluster state continuously and applies incremental changes to match the declarative specification.
- Database Backup and Restore - Captures point-in-time database storage states and persists them to external object storage for disaster recovery.
- Database Systems & Management - Manages multi-node key-value database clusters with automated scaling and high availability features.
- Failed Node Rebuilding - Identifies unresponsive nodes and provisions replacement instances automatically to preserve quorum integrity.
- Custom Resource Definitions - Extends container orchestration APIs with custom resource definitions to manage distributed database instances.
- Custom Resource Controllers - Extends container orchestration APIs with custom resource definitions and continuous reconciliation loops.
- Database Cluster Operators - Automates multi-member database cluster deployment, failover, backup, and recovery on container platforms.
- Member Failure Recovery - Detects unresponsive nodes and coordinates automatic membership replacements to maintain high availability and quorum.
- Cloud Storage Backups - Persists point-in-time state snapshot backups to external object storage for disaster recovery.
- Database Cluster Scaling - Dynamically adjusts active database cluster node counts in response to configuration updates.
- Storage Scaling - Adjusts cluster member counts up or down dynamically by updating configuration manifests.
- Declarative Configuration Management - Drives cluster provisioning and scaling entirely through version-controlled declarative manifests.
- Database Cluster Deployments - Deploys multi-node database clusters with configurable replicas and version parameters.
- Operator-Managed Deployments - Deploys custom resource controllers to automate distributed storage instance lifecycles on container platforms.
- Cluster-Wide Operators - Manages cluster resources across every namespace simultaneously from a single management instance.
- Namespace Isolation - Manages multiple distributed database instances securely across isolated logical environments.
- Database Cluster Deployments - Controls distributed database instances deployed across multiple isolated environments.
- Kubernetes Database Upgrades - Performs zero-downtime rolling upgrades and dynamic scaling operations on running distributed storage.
- Rolling - Updates running instances incrementally through sequential rolling upgrades without dropping quorum.
- gRPC and HTTP TLS Securings - Enables server-side encryption to secure communication across cluster nodes and clients.
- Object Storage Backups - Saves snapshots of cluster data to external cloud object storage for disaster recovery.
- Cluster Version Updaters - Updates running cluster software versions incrementally by modifying version parameters in the specification.
