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Duration 21 hours (3 days)
Course Outline
1. Introduction to OpenStack
- Evolution of cloud computing and OpenStack
- Key characteristics of cloud environments
- Cloud deployment models
- Private, public, and hybrid architectures
- On-premise, IaaS, PaaS, and SaaS paradigms
- Deploying public and private clouds using OpenStack
- Comparison of open-source and commercial OpenStack distributions
- Different OpenStack deployment strategies
- The OpenStack ecosystem
- Core modules
- Foundational tools
- Third-party integrations
- OpenStack project lifecycle
- OpenStack certification pathways
- Setup of the OpenStack lab environment (VM) for this course
2. Practical Management of OpenStack Clouds
- Familiarizing with OpenStack essentials
- Key components (Keystone, Glance, Nova, Neutron, Cinder, Heat)
- Methods of interacting with the OpenStack cloud
- Communication flows between daemons and APIs
- Keystone - Identity Management Service
- Configuration of domains, projects, users, and roles
- Service catalogues and endpoint management
- CLI client configuration via openrc and clouds.yaml files
- Procedures for creating users and projects
- Glance - Image Service
- Adapting images for cloud environments
- Image attributes (properties, metadata, formats, containers)
- Processes for uploading and downloading images
- Neutron - Networking
- Overview of Neutron's architectural design
- ML2 plugins integrated with Neutron
- Fundamental Neutron network resource types
- Networking implementation on Compute Nodes
- Management of tenant networks and subnets
- East-West routing configurations
- Administration of external and provider networks
- North-South routing setups
- Handling of Floating IPs
- Management of security groups and rules
- Port security mechanisms for anti-spoofing
- Configuring networking quotas
- Validation of Neutron services
- Nova - Compute Service
- Architectural components of Nova
- Interfacing with hypervisors
- Keypair administration
- Flavour management
- Configuration of instance parameters
- Procedures for instance creation
- Instance lifecycle management
- Assignment of floating IPs
- Use of interactive consoles and console logs
- Applying security groups
- Accessing instances via the metadata namespace
- Capturing instance interface traffic using tcpdump
- Live migration of virtual machines
- Cinder - Block Storage
- Configuration of volume parameters
- Creating new volumes
- Volume management tasks
- Attaching volumes to Nova instances
3. Deep Dive into Neutron and its OVN Backend
- Overview of OVN architecture
- Key OVN components
- Comparison of ML2 drivers: OVN vs. OVS
- Top-down approach to OVN networking
- OpenStack logic (Neutron database)
- Northbound database structure
- Southbound database structure
- Logical datapath pipelines
- Logical flows
- OpenFlow flows
- Mapping Neutron networks to OVN logical switches
- Logical ports and their classifications
- Switching flow configurations
- Mapping Neutron routers to OVN logical routers
- Types of NAT
- Routing flow configurations
- Neutron subnets and native DHCP integration
- DHCP flow mechanisms
- Security groups within OVN
- ACLs and Port Groups
- Security group flow logic
- Port security implementation in OVN
- Summary of OVN Northbound tables
- Data flow analysis in OVN
- Neutron DB, OVN NB and SB DBs, and OpenFlow on OVS
- Tracing logical flows
- Definition of microflows
- Layer 2 (L2) tracing
- Layer 3 (L3) tracing
- DHCP traffic tracing
- Physical flows and OpenFlow
- Lifecycle of VM-originated packets
- Physical tracing techniques
- Tracing hypothetical packet paths
- Tracing real-world packet behavior
- Visualization of Open vSwitch databases and resources
Requirements
- Strong proficiency in networking concepts
- Foundational understanding of cloud computing paradigms
- Hands-on experience with Linux system administration
Testimonials (1)
communication, knowledge from experience, solve problems,
