Red Hat Storage Day Seattle: Persistent Storage for Containerized Applications
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This document discusses persistent storage solutions for containerized applications. It describes how containers provide benefits like faster development and deployment cycles compared to virtual machines. However, most applications still require persistent storage for data. The document outlines requirements for container storage solutions, such as scalability, resilience, flexibility and being software-defined. It presents Red Hat Storage as a solution, highlighting features like replication, erasure coding and snapshots. Red Hat Storage can provide persistent storage to containers using technologies like Ceph, Amazon EBS, NFS and GlusterFS.
Red Hat Storage Day Seattle: Persistent Storage for Containerized Applications
- 1. PERSISTENT STORAGE FOR CONTAINERIZED APPLICATIONS Louis Gordon Senior Storage Solutions Architect lgordon@redhat.com
- 2. LINUX CONTAINERS: Software packaging concept that typically includes an application and all of its runtime dependencies HIGHER quality software releases SHORTER test cycles EASIER application management CONTAINER CONTAINER APP LIBS HOST OS SERVER APP LIBS BENEFITS
- 3. WHAT’S THE BIG DEAL? BARE METAL VIRTUALIZATION CONTAINERS Deploy in Days or Weeks Single App Instance Deploy in Hours or Days 10s or 100s of Apps Deploy in Seconds or Minutes 100s or 1000s of Apps APP LIBS HOST OS SERVER HOST OS SERVER HOST OS, SHARED SVCS SERVER, CLOUD APP APP LIBS LIBS GUEST OS GUEST OS VIRTUAL MACHINE VIRTUAL MACHINE APP APP LIBS LIBS CONTAINER CONTAINER HYPERVISOR
- 4. CONTAINER WORKLOADS? “For which workloads or application use cases have you used/do you anticipate to use containers?” Data Apps Cloud Apps Systems of Engagement Systems of Record Web and Commerce Software Mobile Apps Social Apps 77% 71% 62% 62% 57% 52% 46% Base: 194 IT operations and development decision-makers at enterprise in APAC, EMEA, and North America Source: A commissioned study conducted by Forrester Consulting on behalf of Red Hat, January 2015 Scalable, Cost Effective, Distributed Storage for Containers
- 5. THE RED HAT STACK — FROM PAAS TO STORAGE DevOps Tools and User Experience Language Runtimes and Middleware Databases and Other Services Container Orchestration and Management Container API Container Host Storage
- 6. WHY CONTAINERS REQUIRE PERSISTENT STORAGE • Web & presentation layers should be stateless ... but ... • That’s probably < 5% of all application instances in a DC • Most other infrastructure applications / services require persistence for storing application and configuration data • Building a different infrastructure for stateful vs. stateless apps ? • Modern IT requires Standardization (e.g. Cloud Computing) • Software-defined DC is a hybrid cloud enabler
- 7. REQUIREMENTS FOR CONTAINER STORAGE • Scalable – Scale out capacity & performance • Resilient – Likely there will be important data • Flexible – Allow different application access profiles • Software-defined – To allow flexible deployment models • Open – For customer choice and lowest TCO RED HAT STORAGE
- 8. PERSISTENT STORAGE REQUIRES REDUNDANCY • Red Hat Storage includes important data redundancy features • 2-way and 3-way replication • Erasure Coding • Geo-Replication • Snapshots
- 9. STORAGE INNOVATION FOR CONTAINERIZED APPLICATIONS AUTOMATED CONFIGURATION SINGLE CONTROL PANEL CHOICE OF PERSISTENT STORAGE Ceph RBD Amazon EBS Fiber Channel GCE iSCSI NFS GlusterFS
- 10. CONTAINER-NATIVE STORAGE DRIVING THE FUTURE OF STORAGE Nov 2015 Mar 2016 Summer 2016 RHGS Container CONVERGENCE OF STORAGE AND COMPUTE Dedicated storage cluster for containerized and PaaS environments Supported for OpenShift Enterprise Containerized Red Hat Gluster Storage serving storage from a dedicated storage cluster Optimized for applications running on RHEL 7, OpenShift Enterprise, and RHEL Container Host Containerized Red Hat Gluster Storage inside OpenShift Container Platform hyper converged with application containers Red Hat Gluster Storage cluster comprised of disks from multiple container cluster nodes CONTAINER READY STORAGE CONTAINERIZED RHGS
- 11. MySQL Container CONTAINER READY STORAGE CONTAINER NODE 1 CONTAINER NODE 2 CONTAINER NODE 1 CONTAINER NODE 3 NGINX Container NGINX Container NGINX Container
- 12. CONTAINERIZED RED HAT GLUSTER STORAGE CONTAINER NODE 1 CONTAINER NODE 2 NGINX Container NGINX Container CONTAINERIZED RED HAT GLUSTER STORAGE
- 13. OPENSHIFT NODE 2 CONTAINER-NATIVE STORAGE Lower TCO Unified Orchestration Ease of Use Greater control OPENSHIFT NODE 3 OPENSHIFT NODE 1 RHGS Container RHGS Container OPENSHIFT NODE 4 MASTER NGINX Container NGINX Container Elasticsearch Container RHGS Container
- 14. CUSTOMER SUCCESS APPLICATION SERVERS CONVERGED SERVERS STORAGE SERVERS NEW AGILITIES allowed telco to bring a new offering to market faster and cheaper LOWER COST than traditional storage and avoiding endless commitment to proprietary vendors FLEXIBLE geo-replicated architecture can grow/shrink dynamically OPTION to be tuned for price or performance BENEFITS HYPER CONVERGED STORAGE Applications and storage can co-exist on the same hardware Higher server utilization and lowers operational costs Storage generates only 3%-10% overhead on compute servers