DROC - Disaster Recovery Orchestration for Containers

Architect: Ananda Kammampati
What is DROC
In simple terms, DROC to Containers is what VMware SRM (Site Recovery Manager) is for the VMware vSphere platform.
To design a simple, superior and affordable Disaster Recovery solution with Open source technologies and make it Production grade.
High-Level Workflow
The Linux host, the local Registry and all the applications that are running inside the Containers that are hosted on the Linux host (say in New York) will be the Protected site.
In the event of a disaster at the Protected site, the Llnux host and the local Registry at the Recovery site (say in New Jersey) will take over the functionalities of hosting all the Containers along with their hosted applications and all micro services, with no downtime.
Architecture design
  • GREEN is the Protected site
  • RED is the Recovery site
  • BLUE represent Load Balancers infrastructure
  • PURPLE represent shared infrastructure
  • CentOS7 is installed on host(s)
  • CentOS7 is installed on Local Registry host(s)
  • CentOS7 is installed on Identity server(s)
  • OPENFILER serve shared storage
  • VMs/Hosts that end with 'P' serve the Protected site
    • GATEWAY-P: Gateway
    • REGISTRY-P: Local Registry
    • IDENTITY-P: Identity server
    • HOST-P: Container (Docker) host
    • LB-P: Load Balancer
  • VMs/Hosts that end with 'R' serve the Recovery site
    • GATEWAY-R: Gateway
    • REGISTRY-R: Local Registry
    • IDENTITY-R: Identity server
    • HOST-R: Container (Docker) host
    • LB-R: Load Balancer