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Duration 21 hours
Course Outline
1. Introduction to OpenStack
- Evolution of cloud technologies and the history of OpenStack
- Key characteristics of cloud computing
- Cloud deployment models
- Private, public, and hybrid clouds
- On-premise, IaaS, PaaS, and SaaS
- Implementing public and private clouds using OpenStack
- Differences between open source and commercial OpenStack distributions
- Various models for deploying OpenStack
- The broader OpenStack ecosystem
- Core modules
- Foundational tools
- Third-party integrations
- Understanding the OpenStack lifecycle
- Overview of OpenStack certification paths
- Setup of the OpenStack lab environment (VM) for this course
2. Managing an OpenStack Cloud in Practice
- Familiarizing with the OpenStack platform
- Core components (Keystone, Glance, Nova, Neutron, Cinder, Heat)
- Methods for interacting with the OpenStack cloud
- Communication flows between OpenStack daemons and APIs
- Keystone – Identity Management Service
- Structure of domains, projects, users, and roles
- Service catalogues and endpoint management
- Configuration of CLI clients using Openrc and clouds.yaml
- Procedures for creating users and projects
- Glance – Image Service
- Adapting images for cloud environments
- Image attributes (properties, metadata, format, container)
- Processes for uploading and downloading images
- Neutron – Networking
- Architectural overview of Neutron
- Implementation of ML2 plugins in Neutron
- Essential Neutron network resource types
- Networking mechanisms at the Compute Node level
- Administration of tenant networks and subnets
- East-West routing configurations
- Management of external/provider networks
- North-South routing configurations
- Management of Floating IPs
- Configuration of security groups and rules
- Port security and anti-spoofing measures
- Network quota management
- Techniques for verifying Neutron service health
- Nova – Compute Service
- Nova architecture breakdown
- Hypervisor interfaces and integration
- Keypair management strategies
- Flavour management and selection
- Configuration of instance parameters
- Process of creating a new instance
- Ongoing instance management tasks
- Assignment of Floating IPs
- Access via interactive console and review of console logs
- Application of security groups to instances
- Accessing instance data through the metadata namespace
- Capturing traffic on instance interfaces using tcpdump
- Execution of VM live-migration
- Cinder – Block Storage
- Definition of volume parameters
- Procedure for creating a volume
- General volume management
- Attaching volumes to Nova instances
3. In-Depth Analysis of Neutron and its OVN Backend
- OVN architectural principles
- Identification of OVN components
- Comparing ML2 OVN versus OVS drivers
- Top-down view of OVN networking
- OpenStack logic (Neutron database structure)
- Northbound database details
- Southbound database details
- Logical datapath pipelines
- Logical flow configuration
- Mapping to OpenFlow flows
- Correlation between Neutron networks and OVN logical switches
- Logical ports and their classifications
- Switching flow logic
- Correlation between Neutron routers and OVN logical routers
- Types of Network Address Translation (NAT)
- Routing flow logic
- Integration of Neutron subnets with native DHCP
- Analysis of DHCP flows
- Implementation of security groups within OVN
- Use of ACLs and Port Groups
- Security group flow mechanisms
- Port security features in OVN
- Consolidated summary of OVN Northbound tables
- Data flow pathways in OVN
- Path from Neutron DB to OVN NB and SB DB, and finally to OpenFlow at OVS
- Techniques for tracing logical flows
- Definition and use of microflows
- Layer 2 (L2) tracing methods
- Layer 3 (L3) tracing methods
- DHCP flow tracing
- Physical flow analysis using OpenFlow
- Tracing the physical lifecycle of a packet originating from a VM
- Physical packet tracing strategies
- Tracing hypothetical packet paths
- Tracing live packet behavior
- Inspection of Open vSwitch database structures and resources
Requirements
- Proficient understanding of networking principles
- Foundational knowledge of cloud computing concepts
- Hands-on experience in administering Linux operating systems
Testimonials (1)
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