Anthos Service Mesh Comprehensive Notes

Introduction to Anthos Service Mesh

  • Overview of Anthos Service Mesh (ASM) and its core functionality.
    • Managed service based on Istio, offering service mesh capabilities on various platforms
    • Aimed at enhancing observability, traffic management, security, etc.

Learning Objectives

  • Understand the benefits of ASM, including:
    • Running distributed services across clusters.
    • Enhancing service observability and traffic management.
    • Improving security measures for services.
  • Install ASM on different Anthos clusters and configure automation based on needs.
  • Observe workload telemetry including metrics, traces, and logs.
  • Discuss capabilities, limitations, and costs of deploying ASM.

Agenda Breakdown

  1. Introduction to ASM
  2. Architecture
  3. Installation
  4. Life of a Request in the Mesh
  5. Mesh Telemetry and Instrumentation
  6. ASM Dashboards
  7. Pricing and Support

Key Features of ASM

  • Distributed Services:
    • Supports services across multiple clusters to ensure high availability.
    • Promotes resilient architectures, maintaining operational service even if individual clusters face failures.
  • Telemetry and Observability:
    • ASM collects telemetry that allows for detailed performance analysis.
    • Telemetry collected includes metrics, logs, and traces, making it easy to monitor Service Level Objectives (SLOs).
  • Security Features:
    • All service communications can be encrypted via mTLS, allowing for secure interactions between services.
    • Authentication and authorization mechanisms can be enforced at the service level.
    • Policies can be implemented for service communication.

The Transition to Services

  • From Monolith to Microservices:
    • In monoliths, functions directly call each other.
    • In microservices, functions are encapsulated in separate, containerized services communicating over the network.
    • The need for standard communication protocols (API) comes into play.
  • Establishing Trust:
    • Services must authenticate and authorize requests rather than assuming trust based on network placement.