MongoDB onKubernetes
In short: Run MongoDB on Kubernetes with MongoDB Controllers for Kubernetes or Percona Operator for MongoDB. The operator reconciles database resources, StatefulSets, services, and lifecycle changes; your design still owns storage behavior, failure domains, backup recovery, monitoring, version compatibility, and safe migration from legacy operators.
Deploy and manage production MongoDB on Kubernetes with operator-driven automation, Helm charts, replica sets, and sharded clusters for cloud-native scalability and resilience.
Comprehensive MongoDB on Kubernetes Services
From operator deployment to production monitoring, we provide end-to-end MongoDB on Kubernetes solutions for cloud-native environments.
- MongoDB Controllers for Kubernetes installation
- Legacy Community / Enterprise operator migration
- Percona Operator for MongoDB installation
- Custom resource definition (CRD) configuration
- Helm chart customization and overrides
- Values file management per environment
- MongoDB configuration tuning (mongod.conf)
- Resource limits, requests, and affinity rules
- Replica set topology and member sizing
- Sharded cluster with config servers and mongos
- Shard key design and balancer tuning
- Cross-zone and cross-region replica placement
- PVC and StorageClass configuration
- WiredTiger cache sizing and tuning
- Separate journal volume mounts
- Volume expansion and snapshot policies
- MongoDB Exporter for Prometheus
- Grafana dashboard provisioning
- Oplog lag and replication alerting
- WiredTiger cache and connection metrics
- mongodump CronJobs on K8s
- Percona Backup for MongoDB (PBM) setup
- S3-compatible backup storage
- Point-in-time recovery (PITR) configuration
MongoDB Kubernetes Operator Paths Compared
Compare MongoDB's current controller, the Percona alternative, and the migration work needed if a legacy Community or Enterprise operator still owns your resources.
Our MongoDB on Kubernetes Implementation Process
A controlled methodology for deploying production-ready MongoDB on Kubernetes with operator-driven automation and comprehensive validation.
Assessment & Planning
Evaluate workload requirements, data volume, availability targets, and K8s cluster topology. Select the right operator, storage class, and replica set or sharded architecture.
Operator & Cluster Deployment
Install the chosen operator via Helm, configure custom resources for replica sets or sharded clusters, set up PVCs, TLS, authentication, and network policies.
Integration & Validation
Migrate data, validate application connectivity, test failover scenarios, configure backups to S3, and set up Prometheus/Grafana monitoring and alerting.
Production Go-Live & Support
Cut over to production with runbooks, backup verification, scaling procedures, and an explicitly scoped monitoring and support model for the MongoDB deployment.
MongoDB on Kubernetes - Frequently Asked Questions
Common questions about running MongoDB on Kubernetes with operators, Helm charts, and production best practices.
Which MongoDB operator should I use on Kubernetes?
MongoDB Controllers for Kubernetes is MongoDB's current operator and replaces the legacy Community and Enterprise operators. It manages MongoDB Community and Enterprise deployments; Enterprise and Ops Manager capabilities still depend on the relevant MongoDB licenses. Percona Operator for MongoDB is an alternative with Percona Backup for MongoDB and PMM integrations. Choose from supported editions, topology, backup, observability, and licensing requirements.
How do MongoDB replica sets work on Kubernetes?
MongoDB replica sets on Kubernetes are deployed as StatefulSets, where each pod runs a mongod instance with a stable network identity and persistent volume. The operator handles initial replica set configuration (rs.initiate), automatic member addition/removal, primary elections, and rolling upgrades. Headless Services provide DNS-based discovery so replica set members can find each other across pod restarts.
Can I run a MongoDB sharded cluster on Kubernetes?
Yes. MongoDB Controllers for Kubernetes and Percona Operator for MongoDB can manage sharded deployments, subject to the selected edition and operator capabilities. The topology includes config-server replica sets, shard replica sets, and mongos routers. Sharding is not an automatic performance fix: shard-key design, query routing, balancer behavior, failure domains, and backup recovery must be validated against the workload.
How is MongoDB data persisted on Kubernetes?
MongoDB data is persisted through PersistentVolumeClaims attached to StatefulSet pods. Storage selection must account for latency, IOPS, throughput, failure-domain placement, reclaim policy, expansion behavior, and snapshot support. Before production use, test pod rescheduling, volume attachment, node loss, backup restore, and storage expansion with the chosen CSI driver and operator version.
How do I monitor MongoDB on Kubernetes?
Monitor both database and Kubernetes layers: replica-set state, replication lag, elections, connections, operation latency, WiredTiger pressure, disk capacity, pod restarts, volume events, and operator reconciliation errors. Prometheus and Grafana can collect and display these signals; Percona deployments can integrate with PMM. Alert thresholds should be based on tested workload and recovery objectives, not generic defaults.
What backup strategies work for MongoDB on Kubernetes?
For MongoDB on Kubernetes, you can use Percona Backup for MongoDB (PBM) which supports full, incremental, and point-in-time recovery backups to S3-compatible storage. The Percona Operator automates scheduled backups and restores directly from custom resources. Alternatively, mongodump/mongorestore can be run as Kubernetes CronJobs, and volume snapshots (CSI snapshots) provide crash-consistent backups at the storage layer.
MongoDB on Kubernetes sources
Review scope: MongoDB Controllers for Kubernetes Operator, supported resources, lifecycle changes, and Percona Operator evaluation. Guidance is checked against primary documentation; deployment targets and performance outcomes remain workload- and contract-specific.
Review owner: JusDB Database Reliability Engineering team. Last reviewed: .
- MongoDB Controllers for Kubernetes Operator
Current MongoDB Kubernetes deployment and management documentation.
- MongoDB Kubernetes release notes
Operator consolidation and current release changes.
- Percona Operator for MongoDB
Independent operator capabilities and prerequisites.
Ready to Run MongoDB on Kubernetes?
Let our experts deploy and manage production MongoDB on Kubernetes with operator-driven automation, automated backups, and enterprise-grade monitoring.
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