Application Domains and Patterns

Service domains

Robotic services

• Device constraints, lifecycles, messaging models
• Platform and runtime differences
• Non-standardised integration of cloud and non-cloud parts

Mobile service

• Sweetspot through controlled mobile -> coud offloading
• Increasing support by cloud providers

Multimedia services

• Long history of standardisation including complex communication patterns such as sessions or broadcast
• Limited but increasing support by cloud providers

Microservices and container patterns

1-Node, 1-Container

• Upward: metrics, profiling
• Downward: lifecycle adherence
• Containers: resource accounting and allocation, packaging, deployment, reuse, failure containment boundary

1-Node, n-Containers

• Sidecar

  • Pickup car: Log transportation
  • Parcel car: Serving sync content
  • ACS car: Repair
  • Toll car: Service discovery
• Ambassador: proxy and represent
• Adapter: normalise and present

m-Nodes, n-Containers

• Leader election: voting and determining leader
• Work queue: coordinator and grabbers
• Scatter/gather: distribution of requests

Operator pattern

• Container managing aspects of other containers (extension of sidecar)
• Commission, decommission, upgrade, downgrade, configure, coordination, backup
• e.g. Kubernetes operator framework