Hedvig & ClusterHQ - Persistent, portable storage for Docker
Download as PPTX, PDF2 likes482 views
The document discusses the growing adoption of container technology by IT professionals, emphasizing the need for stateful applications and persistent storage in Docker environments. Solutions from ClusterHQ and Hedvig are highlighted, featuring their open-source project Flocker for managing container data volumes and the Hedvig distributed storage platform for dynamic storage provisioning. Key features include automated data migration and flexible volume configurations to accommodate various application requirements.
Hedvig & ClusterHQ - Persistent, portable storage for Docker
- 1. Persistent, Portable Storage for Docker Containers and Microservices
- 2. Container adoption 2 Source: DevOps.com – “The Current State of Container Usage” – survey of 285 IT pros – commissioned by ClusterHQ, June 2015. Visit https://clusterhq.com/2015/06/17/container-survey/ to access study. 70%want to run a database or other stateful service in containers 65%plan to use containers in production in the next 12 months 66%say data management is critical to success and a gating factor
- 3. State of Docker and storage The nature of container architectures. . . • Data inside a container is ephemeral • Volumes not portable between hosts But what if I want to. . . • Run a stateful application? • Dynamically provision storage? • Move apps between hosts? • Retain data past the life of the container? 3
- 4. Solution: ClusterHQ and Hedvig • Creators of open-source project Flocker • Container data volume management software 4 + • Creators of the Hedvig Distributed Storage Platform • Founded by Cassandra inventor, Avinash Lakshman
- 5. Elastic Scale to petabytes of data 5 Simple Provision block, file, and object storage with enterprise features Flexible Connects to any compute, runs in any cloud
- 6. 6 Dynamic storage provisioning Instantly create persistent virtual volumes up to petabytes in size Automatic data migration Automate volume movement from source to target nodes Flexible volume configuration Set volume features to meet unique application needs +
- 7. Hedvig Distributed Storage Platform Dynamic storage provisioning and migration 7 Container Data Volume Container Data Volume Container Data Volume Container Data Volume Container Data Volume Server A Container Data Volume Container Data Volume Container Data Volume Container Data Volume Container Data Volume Server B
- 8. Hedvig-Flocker driver functions: • create_volume – creates a new volume with chosen parameters • attach_volume – gives volume access to a specific node • get_device_path – returns device mount path on a node • list_volumes – lists volumes attached to a node • detach_volume – removes volume access from a node • destroy_volume – deletes the volume
- 9. Composition e.g., Docker Compose Flocker control service Orchestration e.g., Docker SwarmFlocker plugin Volume 1 Docker Container 1 Hedvig-Flocker driver Flocker agent Flocker plugin Volume 1 Docker Container 1 Hedvig-Flocker driver Flocker agent Hedvig Distributed Storage Platform Server A Server B
- 10. Thank You!
Editor's Notes
- #4: Container clusters where volumes are a first class citizen Ephemeral Not portable Data inside containers is ephemeral Lack of data portability Stateful apps Persistent storage Friction…
- #7: The missing link between enterprise storage and microservices environments.
- #8: Docker daemon on typically Linux hosts.