mongo-hydra
Advanced tools
A open source mongo orchestration tool with high hopes.
Automate the creation, modification, or deletion of everything required to run a highly available scalable mongo cluster.
Reliability Highly available, self healing, resistant to failure, scalable leveraging existing orchestration tools (eg k8s)
Developer Experience Infra as code, simple to get started, easy to scale down for local development and experimentation.
At unu we run large mongo clusters. We use homegrown tools to manage these clusters. These tools were originally built in bash and have become hard to maintain.
Mongo-hydra is an attempt to open source all that learning in a proper reuseable maintainable tool that we will use internally too.
$ npm install -g mongo-hydra
+ mongo-hydra@latest
hydra replication -f examples/replication/hydra.yaml
docker pull unumotors/mongo-hydra
| Version | Component / Feature | Github Milestone |
|---|---|---|
v0.1.0 | Basic scaffolding + connection logic | v0.0.1 |
v0.2.0 | Manage replication | v0.2.0 |
v0.3.0 | Sharding | v0.3.0 |
v0.4.0 | User and roles | v0.4.0 |
v0.5.0 | Authentication | v0.5.0 |
v0.6.0 | K8s Operator + CRDs | v0.6.0 |
Similar tools like KubeDB and Percona Kubernetes Operator exist. This lists their current feature set.
| Hydra | KubeDB | Percona | ||
|---|---|---|---|---|
| Interface | CLI | ✅ | ⛔ | ⛔ |
| Raw Machines | ✅ | ⛔ | ⛔ | |
| Docker Standalone | ✅ | ⛔ | ⛔ | |
| k8s operator | ⛔ | ✅ | ✅ | |
| MongoDB support | Replica sets | ✅ | ✅ | ✅ |
| Delayed members | ⛔ | ⛔ | ⛔ | |
| Arbiter members | ⛔ | ⛔ | ✅ | |
| Sharded cluster | ⛔ | ⛔ | ⛔ | |
| User management | ⛔ | ⛔ | ⛔ | |
| Admin user setup | ⛔ | ✅ (k8s) | ✅(k8s) | |
| Mongo version support | ✅ =<4.2 | 🟠 3.6 | ✅ 4.2 | |
| Security | Certificates | ⛔ | ⛔ | ✅ |
| Keyfiles | ⛔ | ✅ | ⛔ | |
| Encryption at rest | ⛔ | ⛔ | ✅ | |
| Backups | Automatic backups | ⛔ | ✅ | ✅ |
| s3 | ⛔ | ✅ | ✅ | |
| gcs | ⛔ | ✅ | ⛔ | |
| tarsnap | ⛔ | ⛔ | ⛔ | |
| Monitoring | Prometheus | ⛔ | ✅ | ⛔ |
| Custom | ⛔ | ⛔ | ✅ | |
| Various | Documentation | 🟠 Limited | ✅ | 🟠 Limited |
Right now this project is pre alpha and not recommended for production systems.
This project is supported by unit and integration level tests.
To run the unit-tests you need to provide a mongod instance without auth at localhost and run npm run test-dev.
To run integration tests you need to run MONGO_VERSION=4.0 docker-compose -f test-integration/docker-compose.yaml up and npm run test-integration.
Although we will gladly welcome contributions in the near future we would like to first get our first minimal release as we need to aim to maintain feature parity with our internal tool, before opening it up to external contributions.
Questions and feedback: file an issue.
Follow along: Github Releases.
Copyright 2020 unu GmbH
Licensed under MIT
FAQs
A open source mongo orchestration tool with high hopes
We found that mongo-hydra demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
This episode explores the hard problem of reachability analysis, from static analysis limits to handling dynamic languages and massive dependency trees.
Security News
/Research
Malicious Nx npm versions stole secrets and wallet info using AI CLI tools; Socket’s AI scanner detected the supply chain attack and flagged the malware.
Security News
CISA’s 2025 draft SBOM guidance adds new fields like hashes, licenses, and tool metadata to make software inventories more actionable.