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Course Outline

1. Introduction to OpenStack

  • The evolution of cloud computing and OpenStack
  • Key cloud capabilities
  • Cloud deployment models
    • Private, public, and hybrid clouds
    • On-premise, IaaS, PaaS, and SaaS
  • Public and private cloud implementations using OpenStack
  • Open-source and commercial OpenStack distributions
  • OpenStack deployment patterns
  • The OpenStack ecosystem
    • Modules
    • Foundational tools
    • Integrations
  • The OpenStack lifecycle
  • OpenStack certification
  • OpenStack lab (VM) environment for this course

2. Practical management of OpenStack cloud

  • Familiarization with OpenStack
    • OpenStack components (Keystone, Glance, Nova, Neutron, Cinder, Heat)
    • Interacting with the OpenStack cloud
    • OpenStack daemons and API communication flows
  • Keystone - Identity Management Service
    • Domains, projects, users, and roles
    • Service catalog and endpoints
    • Openrc and clouds.yaml - CLI client configuration files
    • Creating users and projects
  • Glance - Image service
    • Images tailored for the cloud
    • Image attributes (properties, metadata, format, container)
    • Uploading and retrieving images
  • Neutron - Networking
    • Overview of Neutron architecture
    • ML2 plugins for Neutron
    • Basic Neutron network resource types
    • Networking at the Compute Node
    • Managing tenant networks and subnets
    • East-West routing
    • Managing external/provider networks
    • North-South routing
    • Managing Floating IPs
    • Managing security groups and rules
    • Anti-spoofing via port security
    • Networking quotas
    • Verifying Neutron services
  • Nova - Compute service
    • Nova architecture
    • Hypervisor interfaces
    • Keypair management
    • Flavor management
    • Instance parameters
    • Creating an instance
    • Instance management
    • Assigning Floating IPs
    • Interactive console and console logging
    • Assigning security groups
    • Accessing instances via the metadata namespace
    • Capturing instance interface traffic with tcpdump
    • Live migration of VMs
  • Cinder - Block Storage
    • Volume parameters
    • Creating volumes
    • Managing volumes
    • Attaching volumes to Nova instances

3. In-depth analysis of Neutron and its OVN backend

  • OVN architecture
  • OVN components
  • ML2: OVN vs. OvS driver
  • Top-down OVN networking
    • OpenStack logic (Neutron database)
    • Northbound database
    • Southbound database
    • Logical datapath pipelines
    • Logical flows
    • OpenFlow flows
  • Neutron network and OVN logical switch
    • Logical ports and their types
    • Switching flows
  • Neutron router and OVN logical router
    • NAT types
    • Routing flows
  • Neutron subnet and native DHCP
    • DHCP flows
  • Security groups in OVN
    • ACLs and Port Groups
    • Security group flows
    • Port security in OVN
  • Summary of OVN Northbound tables
  • Information flow in OVN
    • Neutron DB, OVN NB and SB DB, and OpenFlow at OvS
  • Tracing logical flows
    • Defining microflows
    • L2 tracing
    • L3 tracing
    • DHCP tracing
  • Physical flows - OpenFlow
    • Physical lifecycle of a VM-originated packet
  • Physical tracing
    • Tracing hypothetical packets
    • Tracing real packets
  • Displaying Open vSwitch database and resources

Requirements

  • Strong networking expertise
  • Fundamental understanding of cloud computing concepts
  • Hands-on experience with Linux system administration
 21 Hours

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