Thank you for sending your enquiry! One of our team members will contact you shortly.
Thank you for sending your booking! One of our team members will contact you shortly.
Course Outline
Day 1 – Containers and Image Management
Introduction to Container Platforms
- Comparison of traditional application deployment versus container-based deployment
- Containers vs. virtual machines
- Container runtimes and container engines
- The specific roles of Docker, Kubernetes, and OpenShift
- Common container platform architectures
- Workflows for development, testing, and production
Working with Containers
- Running and managing containers
- Understanding the container lifecycle
- Starting, stopping, and removing containers
- Executing commands inside containers
- Utilizing environment variables
- Port mapping techniques
- Accessing container logs
- Inspecting resource usage and processes
Building Container Images
- Image structure and layer composition
- Creating Dockerfiles and Containerfiles
- Selecting appropriate base images
- Incorporating application dependencies
- Configuring entry points and commands
- Leveraging image caching
- Strategies for reducing image size
- Building reproducible images
Container Registries
- Differentiating between public and private registries
- Tagging and versioning images
- Pushing and pulling images
- Implementing image authentication
- Managing image retention and cleanup
- Considering basic image security aspects
Container Networking and Storage
- Fundamentals of container networking
- Bridge networking configurations
- Port exposure mechanisms
- Facilitating container-to-container communication
- Utilizing bind mounts and volumes
- Managing persistent container data
- Key considerations for backups
Hands-on Exercises
- Running and inspecting containers
- Building an application image
- Configuring ports and environment variables
- Publishing an image to a registry
- Storing persistent data outside the container
Day 2 – Kubernetes Architecture and Workloads
Kubernetes Fundamentals
- The purpose of container orchestration
- Overview of Kubernetes architecture
- Control plane components
- Worker nodes
- API server functions
- The role of the scheduler
- Controllers in action
- Distinguishing cluster state from desired state
- Interacting with the cluster using kubectl
Kubernetes Resources
- Pods
- ReplicaSets
- Deployments
- Namespaces
- Labels and annotations
- Selectors
- Declarative resource definitions
- YAML manifests
Deploying Applications
- Creating and managing Deployments
- Scaling workloads up or down
- Updating container images
- Executing rolling updates
- Performing rollbacks
- Reviewing deployment history
- Restarting workloads when necessary
- Managing application replicas
Application Configuration
- Utilizing ConfigMaps
- Utilizing Secrets
- Setting environment variables
- Managing configuration files
- Separating application code from configuration
- Handling environment-specific settings
Resource Management
- Defining CPU and memory requests
- Setting CPU and memory limits
- Implementing resource quotas
- Applying limit ranges
- Understanding scheduling implications
- Diagnosing resource-related failures
Hands-on Exercises
- Deploying a containerized application
- Creating and updating Kubernetes manifests
- Scaling an application
- Performing rolling updates and rollbacks
- Configuring the application using ConfigMaps and Secrets
- Applying resource requests and limits
Day 3 – Kubernetes Networking, Storage, and Security
Kubernetes Networking
- The cluster networking model
- Pod-to-pod communication mechanisms
- Service discovery processes
- DNS resolution within the cluster
- ClusterIP services
- NodePort services
- LoadBalancer services
- Ingress concepts
- Patterns for application exposure
Network Policies
- Controlling traffic between workloads
- Defining ingress and egress rules
- Implementing namespace-based traffic control
- Testing network connectivity
- Troubleshooting service communication issues
Persistent Storage
- Distinguishing ephemeral from persistent storage
- Volumes
- PersistentVolumes (PVs)
- PersistentVolumeClaims (PVCs)
- StorageClasses
- Dynamic provisioning
- Access modes
- Reclaim policies
- Storage requirements for stateful applications
Kubernetes Access Control
- Authentication and authorization concepts
- Role-Based Access Control (RBAC)
- Roles and ClusterRoles
- RoleBindings and ClusterRoleBindings
- Service accounts
- Adhering to least-privilege access principles
- Inspecting effective permissions
Workload Security
- Understanding security contexts
- Running containers as non-root users
- Managing Linux capabilities
- Implementing read-only filesystems
- Handling secrets securely
- Verifying image provenance
- Awareness of common configuration risks
Hands-on Exercises
- Exposing an application via Kubernetes services
- Configuring ingress rules
- Restricting traffic using network policies
- Provisioning persistent storage
- Configuring RBAC permissions
- Running a workload with an appropriate security context
Day 4 – Working with OpenShift Environments
Introduction to OpenShift
- OpenShift as a Kubernetes-based application platform
- Mapping Kubernetes resources within an OpenShift environment
- OpenShift cluster architecture
- Differences between projects and namespaces
- Platform users and service accounts
- Navigating the web console
- Using the OpenShift CLI
Managing Projects and Access
- Creating and managing projects
- Assigning user permissions
- Project-level roles
- Administrative access controls
- Resource quotas
- Limit ranges
- Service accounts
- Reviewing project resources
Deploying Applications
- Deploying container images
- Creating application workloads
- Managing deployments
- Scaling applications
- Updating application versions
- Performing rollbacks
- Managing application configuration
- Working with secrets
Application Exposure
- Services in OpenShift
- Routes
- TLS concepts
- Internal and external application access
- Managing hostnames and certificates
- Diagnosing route and service issues
Storage in OpenShift
- Persistent Volume Claims (PVCs)
- StorageClasses
- Attaching storage to workloads
- Managing stateful workloads
- Storage access permissions
- Troubleshooting volume mounting issues
Scheduling and Node Management
- Labels and selectors
- Node selectors
- Taints and tolerations
- Affinity and anti-affinity concepts
- Workload placement strategies
- Cordoning and draining nodes
- Considerations for node maintenance
Hands-on Exercises
- Accessing an OpenShift environment
- Creating and configuring a project
- Deploying and exposing an application
- Configuring user and service-account access
- Attaching persistent storage
- Scaling and updating a running workload
Day 5 – Operations, Monitoring, and Troubleshooting
Platform Monitoring
- Monitoring cluster and application health
- Analyzing resource metrics
- Assessing node health
- Checking workload status
- Evaluating capacity and resource utilization
- Identifying performance constraints
Logging and Events
- Accessing container logs
- Retrieving pod logs
- Viewing previous container logs
- Monitoring Kubernetes events
- Analyzing application and platform messages
- Filtering and interpreting operational data
Health Checks
- Startup probes
- Readiness probes
- Liveness probes
- Designing useful health endpoints
- Diagnosing probe failures
- Preventing unnecessary application restarts
Troubleshooting Workloads
- Resolving pending pods
- Addressing image pull failures
- Fixing crash loops
- Correcting misconfigured environment variables
- Handling failed mounts
- Addressing insufficient resources
- Resolving permission errors
- Troubleshooting service and route connectivity problems
- Diagnosing DNS issues
- Investigating application startup failures
Operational Security
- Reviewing permissions
- Evaluating service account usage
- Secure handling of credentials
- Implementing image security practices
- Enforcing network isolation
- Auditing platform access
- Applying the principle of least privilege
Maintenance and Lifecycle Management
- Conducting routine platform checks
- Performing node maintenance
- Considering application backup strategies
- Backing up configuration data
- Planning updates
- Managing changes
- Testing updates
- Planning rollbacks
- Understanding disaster recovery concepts
Final Practical Workshop
Participants complete an end-to-end operational scenario:
- Build and tag a container image.
- Publish the image to a registry.
- Deploy the application to Kubernetes or OpenShift.
- Configure application settings and credentials.
- Expose the application.
- Attach persistent storage.
- Configure access permissions.
- Add health checks.
- Scale and update the application.
- Diagnose and resolve an introduced failure.
Course Format
- Interactive lectures and technical discussions.
- Instructor demonstrations.
- Extensive hands-on exercises.
- Scenario-based administration and troubleshooting workshops.
- Practical work in container, Kubernetes, and OpenShift environments.
Course Customization Options
- The course can be adapted to the participant's existing infrastructure, cloud provider, and container tooling.
- The balance between Docker, Kubernetes, and OpenShift topics can be adjusted according to the team's experience.
- Practical exercises can be tailored to the organization's applications, deployment processes, and operational requirements.
Trademark Notice
OpenShift is a trademark of Red Hat, Inc. This independently developed training is not affiliated with, endorsed by, or authorized by Red Hat.
Requirements
Participants are expected to possess:
- Experience using the Linux command line.
- Foundational knowledge of system administration or DevOps practices.
- A general understanding of networking concepts.
- Familiarity with software deployment processes.
While previous experience with Docker, Kubernetes, or OpenShift is beneficial, it is not a prerequisite for enrollment.
35 Hours
Testimonials (7)
Reda explanations and he simplified alot of the understanding
Eric Van Wyk
Course - Docker, Kubernetes and OpenShift 3 for Administrators
The labs were the best. Very practical and provides hands-on experience. I personally think that it is the most effective means of truly understanding the course and applying the concepts that were covered.
Hishaam Johnstone
Course - Docker, Kubernetes and OpenShift 3 for Administrators
I loved the willingness to help and explain further when uncertain
Letlotlo Miffi
Course - Docker, Kubernetes and OpenShift 3 for Administrators
Adriano studied the subject very deeply which is the style i mostly prefer ie: less about the commands more on the mechanism behind it. Discussed scenarios were well supported by the practical examples which helped a lot to understand the presented stuff.
Mariusz BANASZCZYK - Sopra Steria
Course - Docker, Kubernetes and OpenShift for Administrators
Deep knowledge of Adriano. Explanation of base concepts
Tomasz Szalankiewicz - LPP SA
Course - Docker, Kubernetes and OpenShift for Administrators
I generally liked the presenter.
Josif Kovacevic - ANZ
Course - Docker, Kubernetes and OpenShift for Administrators
Adrian clearly knows and enjoys this technology.
