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by Zhi Min Wen, Dominique Vernier, Sundaragopal Venkatraman, Sanjay Singh, Anil Pat
IBM Cloud Private System Administrator's Guide
Front cover
Notices
Trademarks
Preface
Authors
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Part 1 IBM Cloud Private overview, architecture, and installation
Chapter 1. Introduction to IBM Cloud Private
1.1 IBM Cloud Private overview
1.2 IBM Cloud Private node types
1.2.1 Boot node
1.2.2 Master node
1.2.3 Worker node
1.2.4 Management node
1.2.5 Proxy node
1.2.6 VA (Vulnerability Advisor) node
1.2.7 An etcd node
1.3 IBM Cloud Private architecture
1.4 IBM Cloud Private features and benefits
1.4.1 A unified installer
1.4.2 Robust logging with ELK stack
1.4.3 Monitoring and alerts
1.4.4 Metering
1.4.5 Identify and access
1.4.6 Security
1.4.7 IBM Vulnerability Advisor
1.4.8 IBM Cloud Automation Manager
1.4.9 IBM Cloud Transformation Advisor
1.4.10 IBM Microclimate
1.4.11 IBM Cloud Private management console
1.4.12 Kubernetes
1.4.13 Private Docker image registry
1.4.14 Helm with enhanced security controls
1.4.15 Catalog
1.4.16 Kubernetes Service Catalog for managing service brokers
1.5 Helm
1.5.1 Helm components and terminology
1.5.2 Why you should use Helm
1.6 IBM Multicloud Manager
1.7 IBM Cloud Paks
1.8 IBM Cloud Private Editions
1.9 Persistent volumes
1.9.1 Volume and claim lifecycle
1.9.2 IBM Cloud Private Storage providers
1.10 IBM Cloud Private terms
Chapter 2. High availability installation
2.1 High availability considerations
2.1.1 Fault tolerance
2.1.2 Considerations for sizing the IBM Cloud Private cluster
2.1.3 Sample sizing for your IBM Cloud Private cluster
2.2 High Availability models for IBM Cloud Private cluster
2.2.1 Intra cluster
2.2.2 Intra cluster with multiple availability zones
2.2.3 Inter Cluster with federation on different availability zones
2.3 Performance considerations for IBM Cloud Private setup
2.3.1 Nodes considerations
2.3.2 Tuning the IBM Cloud Private setup
2.4 Step-by-step installation guide using Terraform
2.4.1 Environment preparation
2.4.2 Upload IBM Cloud Private binaries
2.4.3 Configure the Terraform template
2.4.4 Apply the Terraform template
2.5 Post installation verification
2.5.1 IBM Cloud Private command line interface
2.5.2 IBM Cloud Private Console user interface
2.6 Installing IBM Cloud Private on other Cloud platforms
2.6.1 Typical scenario of running IBM Cloud Private on other Cloud platforms
2.6.2 Installing IBM Cloud Private on AWS using Terraform
2.6.3 Installing IBM Cloud Private on Microsoft Azure using Terraform
2.6.4 Installing IBM Cloud Private on Google Cloud using Terraform
2.6.5 Installing IBM Cloud Private on RedHat OpenShift
2.6.6 Installing IBM Cloud Private on OpenStack Cloud provider
2.6.7 Installing IBM Cloud Private on VMware vSphere Cloud provider
2.6.8 Install IBM Cloud Private on existing Virtual Machines
2.7 Setting up IBM Cloud Private catalog in an airgap environment
2.7.1 Prerequisites
2.7.2 Steps to follow
2.8 Changing certificates post installation
Part 2 IBM Cloud Private system administration tasks
Chapter 3. Backup and restore of an IBM Cloud Private cluster
3.1 The purpose of backing up a cluster
3.2 Backup versus high availability, disaster recovery, and continuous availability
3.3 Backup options
3.3.1 Infrastructure backups
3.3.2 Platform backups
3.4 Backup and restore strategy
3.4.1 Infrastructure backup process
3.4.2 Infrastructure restore process
3.4.3 Platform backup process
3.4.4 Platform restore process
Chapter 4. Managing persistence in IBM Cloud Private
4.1 Designing the cluster for data persistence
4.1.1 Workload specific requirements
4.1.2 Maintainability requirements
4.1.3 Windows worker node support
4.2 Persistent storage for platform services
4.3 Configuring persistent storage for application containers
4.3.1 Configuring vSphere storage provider for IBM Cloud Private
4.3.2 Configuring NFS Storage for IBM Cloud Private
4.3.3 Configuring GlusterFS for IBM Cloud Private
4.3.4 Configuring Ceph and Rook for IBM Cloud Private
4.3.5 Configuring Portworx in IBM Cloud Private
4.3.6 Configuring Minio in IBM Cloud Private
4.4 Managing the storage hosted on IBM Cloud Private
4.4.1 Monitoring storage status and performance
4.4.2 Extending the available storage
4.5 Performance considerations
4.5.1 Performance test using dbench
4.5.2 PostgreSQL database performance
Chapter 5. Logging and monitoring
5.1 Introduction
5.1.1 Elasticsearch, Logstash and Kibana
5.2 IBM Cloud Private Logging
5.2.1 ELK architecture
5.2.2 How Elasticsearch works
5.2.3 Default logging configuration
5.2.4 ELK security
5.2.5 Capacity planning
5.2.6 Role based access control
5.2.7 Using Kibana
5.2.8 Management
5.2.9 Forwarding logs to external logging systems
5.2.10 Forwarding logs from application log files
5.3 IBM Cloud Private Monitoring
5.3.1 How Prometheus works
5.3.2 How AlertManager works
5.3.3 How Grafana works
5.3.4 Accessing Prometheus, Alertmanager and Grafana dashboards
5.3.5 Configuring Prometheus Alertmanager and Grafana in IBM Cloud Private
5.3.6 Creating Prometheus alert rules
5.3.7 Configuring Alertmanager to integrate external alert service receivers
5.3.8 Using Grafana
Chapter 6. Security
6.1 How IBM Cloud Private handles authentication
6.1.1 OIDC-based authentication
6.1.2 SAML-based authentication
6.2 How authorization is handled in IBM Cloud Private
6.2.1 Cloud resource names (CRN) specification
6.2.2 Role-based access control (RBAC) for pods
6.3 Isolation on IBM Cloud Private
6.3.1 Scenarios
6.4 The significance of the admission controller in IBM Cloud Private
6.4.1 Pod security policy
6.4.2 ResourceQuota
6.4.3 LimitRange
6.4.4 AlwaysPullImages
6.5 Image security
6.5.1 Pushing and pulling images
6.5.2 Enforcing container image security
Chapter 7. Networking
7.1 Introduction to container networking
7.2 Pod network
7.2.1 Calico
7.2.2 NSX-T
7.3 High availability
7.3.1 External load balancer
7.3.2 Virtual IP addresses
7.3.3 Ingress controller
7.4 Service discovery (kube-dns)
7.4.1 Headless services
7.4.2 External services
Chapter 8. Troubleshooting
8.1 Common errors during the IBM Cloud Private installation
8.1.1 Customizing the config.yaml file
8.1.2 Customizing the /cluster/hosts file
8.1.3 SSH key error
8.1.4 Missing the IBM Cloud Private binary files in the installation folder
8.1.5 Missing the minimum system requirements
8.1.6 Perform the system cleanup when the installation fails
8.2 Network configuration errors
8.2.1 Calico troubleshooting
8.2.2 IPsec troubleshooting
8.3 Common errors when installing a Helm chart
8.3.1 When accessing an application getting the 504 error
8.3.2 No CPU available
8.3.3 The required port is in use
8.3.4 Deployment fails due to a missing permission
8.4 Common errors when running applications
8.4.1 Getting the 504 or 500 errors when trying to access the application
8.5 Opening a support case
Chapter 9. Service mesh implementation using Istio
9.1 Overview
9.2 Role of the service mesh
9.2.1 Service registry
9.2.2 Service discovery
9.2.3 Load balancing
9.2.4 Traffic encryption
9.2.5 Observability and traceability
9.2.6 Access control
9.2.7 Circuit breaker pattern support
9.3 Istio architecture
9.3.1 Components
9.3.2 Istio functions
9.4 Installation of Istio and enabling the application for Istio
9.4.1 Install Istio with the helm command
9.4.2 Enable application for Istio
9.4.3 Uninstallation
9.5 Service resiliency
9.5.1 Retry
9.5.2 Timeout
9.5.3 Load balancer
9.5.4 Simple circuit breaker
9.5.5 Pool ejection
9.6 Achieving E2E security for microservices using Istio
9.6.1 Inbound traffic
9.6.2 Outbound traffic
9.6.3 Mutual TLS authentication
9.6.4 White or black listing
9.6.5 Istio authorization
Part 3 Cloud Foundry related topics
Chapter 10. IBM Cloud Private Cloud Foundry and common systems administration tasks
10.1 Introduction
10.1.1 IaaS flavors
10.1.2 Technology BOSH versus Kubernetes
10.2 Installation and extensions
10.2.1 Installation of the installer container in a Cloud Foundry Full Stack environment
10.2.2 Installation of the installer container in a CFEE environment
10.2.3 Config-manager role
10.2.4 Extensions
10.3 High availability installation
10.3.1 Zoning
10.3.2 External database
10.3.3 External objects store
10.4 Backup and restore strategy
10.4.1 Installation data
10.4.2 Director
10.4.3 Cloud Foundry database
10.5 Storage and persistent volumes
10.5.1 Cloud Foundry Full Stack
10.5.2 Cloud Foundry Enterprise Environment (CFEE) technology preview
10.6 Sizing and licensing
10.7 Networking
10.8 Security
10.8.1 TLS encryption
10.8.2 Inbound routing
10.8.3 Credentials and certificates
10.9 Monitoring and logging
10.9.1 Monitoring
10.9.2 Logging
10.10 Integrating external services
10.10.1 IBM Cloud Private services
10.10.2 IBM Cloud services
10.10.3 Legacy services
10.11 Applications and buildpacks
10.11.1 Installing extra buildpacks
10.11.2 Application for an airgap environment
10.12 iFix and releases
10.12.1 Zero downtime
Appendix A. Command line tools
Helm command line interface (helmcli)
IBM Cloud Private CLI (cloudctl)
Kubectl
Cheat sheet for production environment
Appendix B. Additional material
Locating the GitHub material
Cloning the GitHub material
Related publications
IBM Redbooks
Online resources
Help from IBM
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Note: Before using this information and the product it supports, read the information in “Notices” on page ix.
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