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* OpenShift Free available resources * OpenShift Available online trainings * OpenShift Articles * OpenShift Book review * OpenShift Certification overview RECENT TECHNICAL ARTICLES & VIDEOS. Posted on June 5, 2021-
CertDepot
KUBERNETES:
* Running Vault and Consul on Kubernetes,
* Is Vanilla Kubernetes Really Too Heavy For The Raspberry Pi? * The Business Case for Kubernetes,
* Running K3S workload in a restricted environment,
* Generating Kubernetes Network Policies Automatically By SniffingNetwork Traffic
,
* Kubernetes Kpt in The Wild: What it is and how to use it,
* 47 Things To Become a Kubernetes Expert,
* Kubernetes API Priority and Fairness,
* NFS Subdirectory External Provisioner Helm Chart,
* Shell-operator: a tool for running event-driven scripts in a Kubernetes cluster , * Comparing Kubernetes operators for PostgreSQL,
* Kubernetes Pod Tolerations and Postgres Deployment Strategies,
* Deploying Talos and Kubernetes with Cluster-API on Equinix Metal,
* Building a real-time leaderboard with Red Hat Data Grid and Quarkus on a hybrid Kubernetes deployment,
* Detect intrusions that happened in your Kubernetes cluster through audit logs using Falco,
* How etcd works and 6 tips to keep in mind,
* Kubernetes Kpt in The Wild: What it is and how to use it,
* 10 Kubernetes Security Context settings you should understand,
* Using Intel vGPUs with Kubevirt,
* Kubernetes Readiness Probes – Examples & Common Pitfalls,
* Introduction to Kubernetes Operators,
* Architecting Kubernetes clusters – choosing the best autoscalingstrategy ,
* Kubernetes architecture and what it means for security,
* Create Kubernetes federated clusters on AWS,
OPENSHIFT:
* A FREE RED HAT DEVELOPER SUBSCRIPTION ALLOWS YOU TO DEPLOY AN OPENSHIFT CLUSTER UP TO 16 NODES FOR MORE THAN 60 DAYS (IT’S NOT ANEVALUATION VERSION)
,
* Lessons Learned from Migrating 3,000 Apps From PCF to OpenShift(50min) / slides
,
* Crane 1.5.0 Feature: Faster OpenShift app migrations with cachedclients (4min) ,
* DevSecOps compliance: Make your auditor’s job easier! * Operationalizing Kubeflow in OpenShift,
* Real-time debugging in Tekton pipelines,
* Installing OKD 4 , * Zero-Touch Declarative Rehosting of Legacy Monolith Applications to OpenShift Virtualization,
* OCP Disaster Recovery Part 2: Recovering an OpenShift 4 IPI cluster With the Loss of One Master Node,
* A Brief Introduction to Red Hat Advanced Cluster Security forKubernetes
,
* Troubleshooting OpenShift Bootstrap Failures,
* Ask an OpenShift Admin Office Hour – Subscription Comparison, Licensing & Entitlements,
* Customizing Virtual Machine Templates in OpenShift,
* How to update to newer Red Hat OpenShift 4 releases,
* How to install Kubeflow 1.2 on Red Hat OpenShift,
* Learn Quarkus faster with quick starts in the Developer Sandbox forRed Hat OpenShift
,
* How to rock CI/CD with Azure DevOps and OpenShift in 6 easy steps,
* Gatekeeper Mutations,
* Network Policies: Controlling Cross-Project Communication onOpenShift
,
* Discovering OpenShift Resources in Quarkus,
* Building Cloud Native Data Analytic Services for the Edge,
* Ask an OpenShift Admin Office Hour – Alertmanager configurationand customization
,
* CVE-2021-30465 Mitigated by Default in OpenShift,
CONTAINERS:
* Container Scanning: How to Connect Snyk With Red Hat Quay,
* Top 20 Dockerfile best practices,
* Podman 3 and Docker Compose – How Does the Dockerless ComposeWork? (3min) ,
* Using files and devices in Podman rootless containers,
* A guide to operating systems for Kubernetes,
* Using runc to explore the OCI Runtime Specification,
* Red Hat Universal Base Image and Docker Hub: Why should developerscare?
* The worst so-called “best practice” for Docker,
* Reverse Engineering a Docker Image,
* DockerSlim: A tool to minify your Docker image,
* New container feature: Volatile overlay mounts,
* Running Testcontainers in OpenShift Pipelines With Docker-in-Docker,
* Buildpacks vs Dockerfiles,
SERVICE MESH:
* Benchmarking Linkerd and Istio,
* Istio multi-cluster on Red Hat OpenShift with Gloo Mesh,
RHEL:
* Visualizing performance in Red Hat Enterprise Linux 8.4 web console,
* Minutes for CentOS Board of Directors for 2021-05-12,
* Red Hat Satellite 6.9.2 has been released,
* Capture detailed analytics with the custom metrics policy in Red Hat 3scale API Management,
* Actionable threat intelligence for publicly known exploits for RHEL,
* Security automation for digital transformation,
* AlmaLinux OS 8.4 Stable Now Available,
* How to set up a Pacemaker cluster for high availability Linux,
* How to enhance Linux user security with Pluggable AuthenticationModule settings ,
* Steps for converting from CentOS Linux with Convert2RHEL and RedHat Satellite
,
* Network-Bound Disk Encryption improvements in RHEL 8,
* Integrate Red Hat Fuse 7 on Apache Karaf with Red Hat AMQ 7,
* Red Hat Software Collections 3.7 and Red Hat Developer Toolset 10.1 now generally available,
CERTIFICATIONS:
* Linux Foundation Kubernetes Certifications Now Include ExamSimulator
,
MISCELLANEOUS:
* Node.js Reference Architecture, Part 2: Logging in Node.js,
* Fedora Podcast is back,
* What is the Fedora 34 RAW Image. Part One,
* What is the Fedora 34 RAW Image. Part Two,
* Event-driven architecture: Understanding the essential benefits,
* Can we consider –editable a bad practice? * Introducing AWS Application Cost Profiler, offering user-based cost data of shared AWS resources,
* The pros and cons of the Strangler architecture pattern,
* A practical view of the xargs command,
* How to create a better front-end developer experience,
* The pros and cons of the Saga architecture pattern,
* Simulating CloudEvents with AsyncAPI and Microcks,
* 7 Linux networking commands that every sysadmin should know.
Posted in Others
LATEST TECHNICAL ARTICLES & VIDEOS. Posted on May 24, 2021-
CertDepot
KUBERNETES:
* Strange things you never knew about Kubernetes ConfigMaps on dayone
,
* How to switch container runtime in a Kubernetes cluster,
* NetworkPolicy Editor: Create, Visualize, and Share KubernetesNetworkPolicies
,
* VMware: The State of Kubernetes 2021,
* How To Run The Cheapest Kubernetes Cluster at $1 Per Day,
* kubebox: A terminal and Web console for Kubernetes,
* k8gb: A cloud native Kubernetes Global Balancer,
* skooner: A simple Kubernetes realtime dashboard and management,
* saffire: A controller to override image sources in the event that an image cannot be pulled , * k8s-image-swapper: Mirror images into your own registry and swap image references automatically,
* Deploy Kubernetes the Hard Way on Azure,
* What is Ingress Controller and how to deploy Nginx Ingress Controller in Kubernetes Cluster on AWS using Helm,
* Introducing argocd-vault-plugin v1.0! * Adding Security to DevOps for your Kubernetes-native Applications(54min) ,
* kube-spawn: A tool for creating multi-node Kubernetes clusters on a Linux machine using kubeadm & systemd-nspawn,
* ArgoCD: users, access, and RBAC,
* ArgoCD: Okta integration, and user groups,
* Using Finalizers to Control Deletion,
* Topology Awareness in Kubernetes Part 3: The Pod Resources API,
* popeye: A Kubernetes cluster resource sanitizer,
* KubeCon + KubeNativeCon Europe 2021 videos,
* Using kubeadm to create a Kubernetes 1.20 cluster on VirtualBoxwith Ubuntu ,
* Setup a Private Git-Repository in Kubernetes with Gitea,
* Using kubernetes custom resources to manage our ephemeralenvironments
,
OPENSHIFT:
* Our Favorite Things from GitOps Con at KubeCon EU,
* OCP Disaster Recovery Part 1 – How to Create Automated ETCD Backup in OpenShift 4.x,
* SSO Integration for the OpenShift GitOps Operator,
* Ask an OpenShift Admin Office Hour – Red Hat CoreOS,
* How to monitoring Openshift 4.x with Zabbix using Prometheus –Part 2
,
* How to install SAP Data Intelligence on Red Hat Openshift,
* Sample Tekton Pipelines for Microservices,
* Debugging Tekton on OpenShift,
* Accessing GitHub in Tekton Tasks on OpenShift,
* Image Garbage Collection in OpenShift,
* Deploying ArgoCD on OpenShift,
* Using GitOps on OpenShift,
* Integrating systems with Apache Camel and Quarkus on Red HatOpenShift
,
* Deploy Red Hat’s single sign-on technology on Red Hat OpenShiftusing templates
,
* How to Use HashiCorp Vault and Argo CD for GitOps on OpenShift,
* Red Hat OpenShift Certification extends support for Kubernetes-native technologies with Helm,
* Self-managed Red Hat OpenShift sizing and subscription guide,
* Improve performance and efficiency in your Red Hat OpenShiftdeployments
,
* Building an Air-Gap Friendly Operator,
* Authorizing multi-language microservices with oauth2-proxy,
* Installing and using Dynatrace to prevent outages,
* Deploying Crossplane Providers with the Operator Lifecycle Manager,
* Ask an OpenShift Admin Office Hour – SPLAT and the vSphereProblem Detector
,
* Automated Application Packaging And Distribution with OpenShift –Part 2
,
* Deploy Helm charts with Jenkins CI/CD in Red Hat OpenShift 4,
CONTAINERS:
* ctop: Top-like interface for container metrics,
* Using Ansible to configure Podman containers,
* The Easiest Way to Debug Kubernetes Workloads,
* Trivy: A Simple and Comprehensive Vulnerability Scanner for Container Images, Git Repositories and Filesystems,
* Build lean Java containers with the new Red Hat Universal Base Images OpenJDK runtime images,
SERVICE MESH:
* Istio multi-cluster on Red Hat OpenShift with Gloo Mesh,
RHEL:
* Red Hat Enterprise Linux 8.4 now generally available,
* Stability plus innovation: Red Hat Enterprise Linux 8.4 is now GA,
* CentOS Stream 9 Daily Build Available to Download With GNOME 40.1,
* Using Red Hat’s single sign-on technology with external databases, Part 1: Install and configure SSO with MariaDB,
* Automating RHEL for Edge image rollback with GreenBoot,
* Why should developers care about GitOps? * CentOS Dojo, May 2021,
* The Red Hat Ceph Storage life cycle: upgrade scenarios and long-lived deployments,
* How to Install Chrony NTP Server on CentOS 8,
* How to Install WebERP on CentOS 8,
* How to install Memcached on CentOS 8,
* How to Setup Highly Available NGINX with KeepAlived on CentOS 8,
* RHEL for Edge: What’s new in RHEL 8.4,
* CentOS IRC channels moving to irc.libera.chat,
* Upgrading QGo to QT5,
* Minutes for CentOS Board of Directors for 2021-05-12,
* CentOS SIG experience feedback,
* Build your own RPM package with a sample Go program,
CERTIFICATIONS:
* Develop and deploy applications faster by becoming a Red Hat Certified Cloud-Native Developer,
* Getting started with OpenShift Platform Administrator Learning Path,
MISCELLANEOUS:
* Mostly harmless: An account of pseudo-normal floating point numbers,
* A brief introduction to Ansible Vault,
* RDO Wallaby Released,
* Receive Side Scaling (RSS) with eBPF and CPUMAP,
* Bash scripting: Moving from backtick operator to $ parentheses,
* What Can You Do with a TPM? * Error handling in Bash scripts,
* The pros and cons of the Throttling architecture pattern,
* 8 best practices to reduce your AWS bill for Kubernetes,
* Ansible: Getting started with Route Maps Resource Modules,
* Exporting a git repo as a tarball,
* Getting better at counting rpm-ostree based systems,
* PipeWire: the new audio and video daemon in Fedora Linux 34,
* How to Install Drupal 9 on Fedora 34,
* Introduction to the Node.js reference architecture, Part 3: Codeconsistency
,
* Documenting system uptime in Linux,
* Network address translation part 4 – Conntrack troubleshooting,
* What is an ECU? An EC2 Compute Unit, Simply Explained,
* Security Is Someone Else’s Job Zero,
* What is an Edge Location in AWS? A Simple Explanation,
* vscode-kafka: Apache Kafka extension for Visual Studio Code,
* Linux lsof Command Tutorial for Beginners (15 Examples),
* 6 lesser-known but seriously useful Linux commands,
* The pros and cons of the Event Sourcing architecture pattern,
* micropipenv: Installing Python dependencies in containerizedapplications
,
* Adding arguments and options to your Bash scripts,
* PromQL Compatibility Testing – Verifying Vendor Claims for End User Benefit (23min) , * Organizing Your AWS Environment Using Multiple Accounts,
* Ansible: Fun with private Automation Hub – Part 1,
* Fedora Magazine: Set up a .NET development environment,
* Asynchronous enterprise architecture design using AsyncAPI,
* Top 5 Linux man command options for browsing man pages,
* Shenandoah garbage collection in OpenJDK 16: Concurrent referenceprocessing
,
* Joining Fedora Linux to an enterprise domain,
* Recursive Vim macros: One step further into automating repetitivetasks ,
* Introduction to machine learning with Jupyter notebooks.
Posted in Others
RECENT TECHNICAL ARTICLES & VIDEOS. Posted on May 12, 2021-
CertDepot
KUBERNETES:
* Kubernetes configuration patterns, Part 1: Patterns for Kubernetesprimitives
,
* Kubernetes configuration patterns, Part 2: Patterns for Kubernetescontrollers
,
* Enhance application security by rotating 3scale access tokens,
* A brief overview of the Container Network Interface (CNI) inKubernetes ,
* Deploying Serverless Services on Kubernetes using Knative,
* CNCF GitOps Working Group,
* How to unit-test your helm charts with Golang,
* Microsoft acquires Kinvolk to accelerate container-optimizedinnovation
,
* Network Isolated AKS – Part 1: Controlling network traffic,
* Custom policies in Red Hat 3scale API Management, Part 2: Securing the API with rate limit policies,
* Rook Best Practices for Running Ceph on Kubernetes,
* Kubernetes GUIs
,
* kcp: a minimal Kubernetes API server,
OPENSHIFT:
* oc CLI plugin to interact with Helm features provided by theOpenShift Console ,
* BareMetal/UPI libvirt OKD Deployments (141min)+ doc
,
* Deploying Kafka on OpenShift,
* Containerize .NET for Red Hat OpenShift: Use a Windows VM like acontainer
,
* A journey of a Helm operator to OperatorHub.io and back again,
* Kubernetes Pod Escape Using Log Mounts exploit doesn’t work onOpenShift
,
* OpenShift Pipelines and OpenShift GitOps are now GenerallyAvailable
,
* Deployments of Applications to OpenShift via Source,
* Logging for OpenShift via LogDNA,
* Getting Started with ApplicationSets,
* Introducing OpenShift Pipelines,
* Creating and customizing quick starts with navigation hints inOpenShift
,
* Adding Nodes Outside of a MachineSet in vSphere IPI Clusters,
* Now Available: OpenShift Serverless 1.14,
* Recap: OpenShift Commons Gathering at KubeCon EU with Videos! * How to Configure LDAP Sync With CronJobs in OpenShift,
* Externalizing Configurations for OpenShift Deployments,
* OpenShift 4 Road Map Update 2021 (56min),
* GitOps Happy Hour: Demystifying GitOps (79min)/ slides
,
* GitOps Happy Hour: Sneak peek at the OpenShift GitOps Operator(62min) ,
* Red Hat OpenShift GitOps 1.0 Overview (15min),
* Scaling an event-driven architecture using an event-drivenautoscaler
,
* Deploying Nginx on OpenShift,
* Backup and Recovery with OpenShift APIs for Data Protection (OADP) : be careful, the VELERO Open Source project is currently plagued with multiple outstanding issues,
* Building a Custom Overview Page in OKD,
* Deploying Tekton on OpenShift,
* Creating Pod Latency With Linux Traffic Control on OpenShift,
CONTAINERS:
* How to automate Podman installation and deployment using Ansible,
* Building containers by hand: The PID namespace,
* Unmounting inside a container,
* Using hack/run-locally with CRIO,
* Localhost is special, part 1: vampire nodes,
* An introduction to the Quay container registry,
SERVICE MESH:
* Kiali releases 1.31 to 1.33 – enhanced logs viewer, revised health indicators, multi-cluster enhancements, * OpenShift Service Mesh on IBM System Z/LinuxONE Part I:Installation
,
* OpenShift Service Mesh on IBM System Z/LinuxONE Part II: Build Bookinfo from Source,
RHEL:
* Red Hat Software Collections 3.7 and Red Hat Developer Toolset 10.1 beta versions now available,
* Now let’s face it, what the heck is OpenStack and where might itbe useful?
* CentOS alternative AlmaLinux gets commercial support,
* CentOS Community Newsletter, May 2021 (#2105),
* Linux at CERN: Current status and future,
* CentOS 8 binary compatible alternatives,
* Event-driven APIs and schema governance for Apache Kafka: Get ready for Kafka Summit Europe 2021,
* Compliance clarity with Red Hat Insights,
* How to accurately match OVAL security data to installed RPMs,
* Azure SQL Edge comes to Red Hat Enterprise Linux,
* How to install Odoo 11 on CentOS 7 with Nginx as a Reverse Proxy,
* CentOS Stream 8 and “dnf downgrade”,
* Cost efficient disaster recovery in hybrid cloud environments,
* CERN’s page discussing CentOS 8,
MISCELLANEOUS:
* HTTP/2: 5 things every Enterprise Architect needs to know,
* Understanding Rust as a C++ developer,
* How Rust makes Rayon’s data parallelism magical,
* Value range propagation in GCC with Project Ranger,
* Detecting memory management bugs with GCC 11, Part 1: Understandingdynamic allocation
,
* Automatic load balancing for PMD threads in Open vSwitch with DPDK,
* Red Hat Satellite 6.9.1 has been released,
* The GDB developer’s GNU Debugger tutorial, Part 1: Getting started with the debugger,
* New features in OpenMP 5.0 and 5.1,
* Instant replay: Debugging C and C++ programs with rr,
* Network Methods of Procedure’s as automated workflows,
* Handling Out of Band Network Changes,
* Monitoring as code with Sensu + Ansible,
* Fedora Workstation 34: What’s new,
* How to rebase to Fedora 34 on Silverblue,
* Access freenode using Matrix clients,
* Configure WireGuard VPNs with NetworkManager,
* Introducing the Fedora i3 Spin,
* Optimizing the Clang compiler’s line-to-offset mapping,
* Architectural messaging patterns: an illustrated guide,
* Memory error checking in C and C++, part 1: Comparing Sanitizersand Valgrind
,
* Detecting memory management bugs with GCC 11, Part 2: Deallocationfunctions
,
* Static and dynamic IP address configurations for DHCP,
* Static and dynamic IP address configurations: DHCP deployment,
* Automating the testing process for SystemTap, Part 1: Test automation with libvirt and Buildbot,
* Automating the testing process for SystemTap, Part 2: Test result analysis with Bunsen,
* Why Windows and Linux line endings don’t line up (and how to fixit)
,
* The pros and cons of the Pub-Sub architecture pattern,
* Use multiple compilers to build better projects,
* Report from the virtual ISO C++ meetings in 2020 (core language),
* Exploring PKI weaknesses and how to combat them,
* Configuring Ansible Tower with the Tower Configuration Collection,
* Use knowledge graphs to discover open source packagevulnerabilities
,
* Numerical weather prediction on AWS Graviton2,
* Ansible Network Resource Purge parameter,
* Build an API using Quarkus from the ground up,
* The machine learning life cycle, Part 1: Methods for understandingdata
,
* The pros and cons of the Circuit Breaker architecture pattern.
Posted in Others
LATEST TECHNICAL ARTICLES & VIDEOS. Posted on April 30, 2021-
CertDepot
KUBERNETES:
* Kubernetes tooling for TechOps and support,
* kubectl-trace: a kubectl plugin that allows you to schedule the execution of bpftrace programs in your Kubernetes cluster,
* kubectl-cost: a kubectl plugin for determining the cost of Kubernetes workloads , * Use Skupper to connect multiple Kubernetes clusters,
* network-node-manager: a kubernetes controller that controls the network configuration of a node to resolve network issues ofkubernetes ,
* K8Spin operator: adds three new hierarchy concepts to yourKubernetes cluster
(Organizations, Tenants, and Spaces),
* Zero Trust GitOps
,
* How I constructed an interactive OpenShift lecture for Red HatAcademy
,
* VMware Tanzu Hands-On Workshops,
* AKS Performance: Limit Ranges,
* Red Hat Simplifies Kubernetes Cluster Management,
* Configure Traefik v2 with Cert-manager on Kubernetes,
* Revealing the secrets of Kubernetes secrets,
* Kubernetes 1.21: Metrics Stability hits GA,
* Provisioning Kubernetes clusters on Linode with Terraform,
* Evolving Kubernetes networking with the Gateway API,
* Service Discovery in Kubernetes – Combining the Best of TwoWorlds ,
* Defining Network Policy Conformance for Container Network Interface(CNI) providers
,
* Helm Subchart Pattern Using Git Submodules,
OPENSHIFT:
* Top 5 Courses to Learn Redhat OpenShift in 2021,
* How to Orchestrate Data Pipelines with Applications Deployed on OpenShift with Stonebranch’s UAC,
* Connect AMQ Streams to your Red Hat OpenShift 4 monitoring stack,
* Introducing the Cilium Certified OpenShift Plug-in,
* Access your Developer Sandbox for Red Hat OpenShift from thecommand line
,
* Introducing the Red Hat Tested Solution for Red Hat OpenShift Container Platform on Red Hat OpenStack Platform,
* OKD configuration on VMware (22min),
* Continuous Delivery with Helm and Argo CD,
* Deployment Guide for OpenShift on Alibaba Cloud,
* Ask an OpenShift Admin Office Hour – Day 2 Operations, Part 2,
* Integrate Red Hat Data Grid and Red Hat’s single sign-on technology on Red Hat OpenShift,
* Automated Application Packaging and Distribution with OpenShift –Part 1
,
* How to Configure Okta as An Identity Provider for OpenShift,
* Deploying the Mosquitto MQTT message broker on Red Hat OpenShift,Part 2
,
* OpenShift Bare Metal installation with GPU,
* Just What Is Red Hat OpenShift Platform Plus? * Introducing Red Hat OpenShift Streams for Apache Kafka,
* Introducing Red Hat OpenShift API Management,
* Introducing Red Hat OpenShift Data Science,
* Deploying Postgres on OpenShift,
* Deploying IBM’s Db2 on OpenShift,
* Installing OpenShift using Temporary Credentials,
* Descheduler GA in OpenShift 4.7,
* OpenShift Logging Quick Start,
CONTAINERS:
* Improving Kubernetes and container security with user namespaces,
* chdir to cwd: permission denied,
* Mitigating CVE-2021-20291: DoS affecting CRI-O and Podman,
* Kubernetes Deprecating Docker?! Let Me Explain Containers in K8s,
* Build smaller containers,
* Why Red Hat’s Universal Base Image is crucial for a Standard Operating Environment,
* Containerize .NET for Red Hat OpenShift: Windows containers and.NET Framework
,
* Using Podman Compose with Microcks: A cloud-native API mocking andtesting tool
,
* Home automation: Running Home Assistant with Podman,
* Buildah as Cross-Compiler,
* Building and Publishing Multi-Arch Images and Image Manifests with Red Hat Buildah and Podman,
SERVICE MESH:
* Consul benchmark , * OpenShift Service Mesh Getting Started Guide,
RHEL:
* CentOS Community Code of Conduct,
* Accelerated Database Performance on Red Hat Enterprise Linux 8.3with Intel Ice Lake
,
* Red Hat Satellite 6.8.6 has been released,
* How to resize a logical volume with 5 simple LVM commands,
* Optimize your RHEL infrastructure: 5 performance areas to focus on,
* Red Hat Satellite 6.9 now available with Smart Management,
* How to build an active-active-active cluster with RHEL 8 andPercona MySQL
,
* Automating ingest data processing with data pipelines,
* CentOS Stream 9 Buildsystem is publicly viewable,
* Benchmarking transparent versus 1GiB static huge page performance in Linux virtual machines,
* RHEL 8.4 brings continuous stability plus innovation,
CERTIFICATIONS:
* How to prepare for the CKA exam (21min),
MISCELLANEOUS:
* Something bugging you in Fedora Linux? Let’s get it fixed! * Capture Oracle database events in Apache Kafka with Debezium,
* Automating Endpoint Protection with Ansible,
* C# 9 init accessors and records,
* Node.js 16 is here with updated platform support, V8 version 9, andmore!
* Deep dive into Ansible Trend Micro Deep Security integrationmodules
,
* How to Install Ampache Music Streaming Server on Fedora 33,
* Unifying Audio with Pipewire,
* Remote LLVM development with Visual Studio Code,
* Valgrind Memcheck: Different ways to lose your memory,
* Solving the mystery of hanging character set conversions in glibc’s iconv utility,
* The pros and cons of the Sharding architecture pattern,
* What is Amazon Athena? An Introduction and Walkthrough,
* S3’s Durability Guarantees Aren’t What You Think,
* Ping command basics for testing and troubleshooting,
* Continuous learning in Project Thoth using Kafka and Argo,
* Fedora Linux 34 is officially here! * File transfer protocols: FTP vs SFTP,
* Some more C# 9
,
* The MIR C interpreter and Just-in-Time (JIT) compiler,
* Production Machine Learning Monitoring: Outliers, Drift, Explainers & Statistical Performance.
Posted in Others
RECENT TECHNICAL ARTICLES & VIDEOS. Posted on April 18, 2021-
CertDepot
KUBERNETES:
* Kubernetes 1.21: Power to the Community,
* Version-checker: Kubernetes utility for exposing image versions inuse ,
* Generating Kubernetes Network Policies By Sniffing Network Traffic,
* Testing Apicurio Registry’s performance and scalability,
* Securely connect Red Hat Integration Service Registry with Red HatAMQ Streams
,
* Kubernetes Storage Options Can Be Overwhelming – Pick the RightOne
,
* iptables: How Kubernetes Services Direct Traffic to Pods,
* Working with kubernetes configmaps, part 2: Watchers,
* Argo CD 2.0 Released! * Argo CD Notifications Got Better – Welcome to the v1.1 Release,
* Introducing the ApplicationSet Controller for Argo CD,
* VMware Tanzu RabbitMQ for Kubernetes: High-Performance Messaging On-Demand with Kubernetes,
* How to run Ghost blog inside Kubernetes,
* A recipe for a bespoke on-prem Kubernetes cluster,
* Kubernetes 1.21: CronJob Reaches GA,
* Introducing Suspended Jobs,
* Understanding Microservices – Managing Microservices using Kubernetes and Docker (20min),
* kube-state-metrics goes v2.0,
* Kubernetes 1.21 Grows Innovative New Features,
* GitOps: The Bad and the Ugly,
* Kubernetes Networking: How to Write Your Own CNI Plug-in with Bash,
* Comparing Chaos Engineering Tools for Kubernetes Workloads,
* Cloud Native CI/CD with Tekton – Building Custom Tasks,
* Kubernetes overview diagrams,
* BuildKit CLI: a tool for building container images with yourKubernetes cluster
,
* No one wants to manage Kubernetes anymore,
* Guide to Monitoring Kubernetes: Which Metrics and Health Conditions You Should be Monitoring,
* Leader Election inside Kubernetes,
* k8s-image-swapper: Mirror images into your own registry and swap image references automatically,
OPENSHIFT:
* Connecting managed clusters with Submariner in Red Hat Advanced Cluster Management for Kubernetes,
* Creating a Two Disk RHEL8 VM with an Immutable OS Disk,
* Containerize and deploy Strapi applications on Kubernetes and RedHat OpenShift
,
* Ask an OpenShift Admin Office Hour – Installation methods redux,
* OpenShift roadmaps , * Red Hat OpenShift Container Platform Architecture Design Guide forPCI DSS V3.2.1
,
* How to create TLS/SSL Certificate with Cert-Manager Operator on Red Hat OpenShift (31min) , * OpenShift OCS Multisite Disaster Recovery Guide,
* Deep Dive with RHACM and Submariner – Connecting multiclusteroverlay networks ,
* Connecting stateful applications in multicluster environments with RHACM and Submariner,
* Virtual Machines or Containers? The answer is Both! * How to create new users in OpenShift with htpasswd and OAuth,
* Integrating Gatekeeper with Red Hat Advanced Cluster Management forKubernetes
,
* 3Scale Mini-Guide: Deploy APICast outside of Openshift,
* Using a custom devfile registry and C++ with Red Hat CodeReadyWorkspaces
,
* Automatic Installation of a Windows VM Using OpenShiftVirtualization
,
* RH-SSO (Keycloak) and GitOps,
* Containerize .NET for Red Hat OpenShift: Linux containers and .NETCore
,
* Introducing kube-burner, A tool to Burn Down Kubernetes andOpenShift
,
* A brief intro to Red Hat OpenShift for Node.js developers,
* Deploying the Mosquitto MQTT message broker on Red Hat OpenShift,Part 1
,
* Ask an OpenShift Admin Office Hour – Day 2 Operations, Part 1,
* Create alerts for OpenShift user workload,
CONTAINERS:
* Exploring the new Podman secret command,
* How to pick the right container base image,
* Red Hat Quay 3.5 Is Generally Available,
SERVICE MESH:
* Service Mesh: Winning Ingredient for Cloud-Native Enterprises,
* Using Login.gov to Authenticate Against OpenShift Clusters,
* Istio: an overview of running Service Mesh in Kubernetes,
* Service Mesh with Linkerd on Arm-based platforms at the Edge,
RHEL:
* How to install Jitsi meet on CentOS 8,
* CentOS Community Newsletter, April 2021 (#2104),
* CentOS Hyperscale SIG Quarterly Report for 2021Q1,
* Red Hat Launches Red Hat Learning Subscription Premium,
* Get started with clang-tidy in Red Hat Enterprise Linux,
* Accelerating Network Packet Processing on RHEL 8.3 with Intel Gen 3Ice Lake Xeon
,
* Deploy Quarkus everywhere with Red Hat Enterprise Linux (RHEL),
* What’s new with Quarkus? And other updates in Red Hat Runtimes,
* Edge computing optimization with open source technologies,
* An introduction to firewalld rules and scenarios,
* Configuring RHEL 8 for compliance with crypto-policy related to Cipher Block Chaining,
* The real motivation behind systemd,
* Automating a RHEL 8 Installation Using the VMware REST AnsibleCollection
,
* An Introduction to Convert2RHEL: Now officially supported to convert RHEL-like systems to RHEL,
* Optimizing server utilization in datacenters by offloading network functions to NVIDIA BlueField-2 DPUs,
* Free RHEL Is Also RHEL,
* How to Install PrestaShop with Apache and Let’s Encrypt SSL onCentOS 8
,
* How to Install Angular CLI on CentOS 8,
* These Microsoft SQL Server on RHEL 8 benchmark results mightsurprise you
,
* Custom RPMS and meta-rpm on CentOS and Raspberry Pi 4,
* Vulnerability analysis for Golang applications with Red Hat CodeReady Dependency Analytics,
* Looking for a CentOS Replacement? Start Here,
* Creating a VXLAN overlay network with Open vSwitch on CentOS 8,
MISCELLANEOUS:
* 5 obscure but useful Linux commands for sysadmins,
* C# 9 pattern matching,
* Getting Started With Ansible BGP Global Resource Modules,
* Using network bound disk encryption with Stratis,
* Setting up UEFI HTTP boot with libvirt,
* Build even faster Quarkus applications with fast-jar,
* What’s happening in the Node.js community,
* Using a schema registry to ensure data consistency betweenmicroservices ,
* Scaling your applications faster with EC2 Auto Scaling Warm Pools,
* Topic 3.2 Searching and Extracting Data from Files in Linux (40min),
* AWS replaces ElasticSearch/Kibana with OpenSearch,
* Ansible and Fedora/EPEL packaging status,
* Scheduling tasks with cron,
* C# 9 new features for methods and functions,
* OpenStack’s history, community, and 7 of its core projects,
* 6 tcpdump network traffic filter options,
* 6 options for tcpdump you need to know,
* 6 advanced tcpdump formatting options,
* 2021 state of Chaos Engineering,
* Automating ServiceNow with Red Hat Ansible Automation Platform,
* How to use Ansible to send an email using Gmail,
* 5 processor architectures making machine learning a reality foredge computing
,
* Performance best practices and configuration guidelines for SQLServer on Linux
,
* Mandrel: A specialized distribution of GraalVM for Quarkus,
* Announcing HashiCorp Terraform 0.15 General Availability,
* Fedora Workstation 34 feature focus: Btrfs transparent compression,
* Fail fast with Opossum circuit breaker in Node.js,
* How to use Ansible to configure a reverse proxy,
* The New Illustrated TLS Connection , * How to Test Website Loading Speed in Linux with curl,
* Use the DNF local plugin to speed up your home lab,
* Broadening GCC compiler checks for buffer overflows in_FORTIFY_SOURCE
,
* Using the SystemTap Dyninst runtime environment,
* Topic 3.3 Linux Essentials Bash Scripting -Tuning Commands intoScripts (55min) .
Posted in Others
LATEST TECHNICAL ARTICLES & VIDEOS. Posted on April 6, 2021-
CertDepot
KUBERNETES:
* Monitoring Kubernetes with prometheus-operator (23min),
* K8GB – Kubernetes Global Balancer,
* Of Kubernetes unsafe sysctls & performance optimization on EKS,
* Logging in Kubernetes with Loki and the PLG Stack,
* Thanos v0.19.0 release announcement,
* What’s new in Kubernetes 1.21? * Design event-driven integrations with Kamelets and Camel K,
* Benchmarking and Evaluating Your Kubernetes Storage with Kubestr,
* Argo Workflows 3.0 Released! * Graceful shutdown of fpm and nginx in Kubernetes,
* Testing the Operator SDK and making a prefetch mechanism forKubernetes
,
* Bare metal host provisioning integration for Kubernetes,
* Learnings From Two Years of Kubernetes in Production,
* Kubernetes README , * k0s: Zero Friction Kubernetes , * Managing a Kubernetes cluster with Helm and FluxCD,
OPENSHIFT:
* DevSecOps is the Way: Monthly OpenShift Security Series,
* Quickly Set Up an OpenShift Development Cluster for Your Team Using CodeReady Workspaces,
* Recap: OKD 4 Testing and Deployment Workshop – Videos and Additional Resources,
* Ask an OpenShift Admin Office Hour – DNS and cluster networking,
* Regenerating Kubeconfig for system:admin user in Openshift clusters,
* Sneak peek into Red Hat OpenShift Service on AWS (ROSA),
* The Path to Improving the Experience With RHEL Entitlements onOpenShift
,
* Surviving The API Storm With API Priority & Fairness,
* Red Hat OpenShift on Amazon (ROSA) is GA! * Metrics-Driven Pod Constraints,
* How to setup the OpenShift Container Platform 4.7 on your localmachine
,
* Kubernetes API Event Driven Triggering of Tekton Pipelines,
* How to make a PXE Boot Menu to install Openshift 4.x (31/03/2021),
* Achieving Accurate Vulnerability and Compliance Scanning for OpenShift Images and Containers,
* Deploy integration components easily with the Red Hat IntegrationOperator
,
* Shifting left: Davie Street Enterprises implements DevSecOps,
* Crossplane as an abstraction platform to manage and deploy serviceOperators
,
* Ask an OpenShift Admin Office Hour – CNI plugins and Multus,
CONTAINERS:
* Beginner’s Guide to Podman Containers on Linux,
* systemd containers on OpenShift with cgroups v2,
* Podman : Install Podman on Oracle Linux 8 (OL8),
* Installing and Working with Podman as Container Engine,
* Buildah version 1.20.0 Release Announcement,
* Podman 3.1 has been released!STORAGE:
* Using HPE Remote Copy Peer Persistence with Red Hat OpenShift and the HPE CSI Operator for Kubernetes,
SERVICE MESH:
* A Guide to Running your Application in the OpenShift Service Mesh,
* Improving security with Istio,
RHEL:
* Red Hat Enterprise Linux 8.4 Beta now available,
* How to install ReactJS with Nginx proxy on CentOS 8,
* Security and management improvements in Red Hat JBoss Enterprise Application Platform 7.4 Beta,
* Creating a backup of data stored in a Linux virtual machine,
* Almalinux 8.3 Is Released As A Stable RHEL Clone For Those WhoLiked CentOS
,
* AlmaLinux 8.3, Forever Free CentOS Replacement Released,
* CloudLinux Launches AlmaLinux, CentOS Linux clone,
* Install Varnish Cache 6 for Apache/Nginx on CentOS 8,
* Accelerate your DevOps journey with a trio of training offeringsfrom Red Hat
,
* Get started with XDP,
* How to Install Passbolt Self-Hosted Password Manager on CentOS 7,
* The Long-Term Outlook for CentOS 7 Support,
* How To Install Joomla On Centos 8,
* CentOS CPE Weekly: 2021-03-31,
* Red Hat Satellite 6.8.5 has been released,
* Installing and configuring Jenkins in Linux,
CERTIFICATIONS:
* Notes for the RHCSA Exam,
MISCELLANEOUS:
* A Tale of Two Network Automation Surveys,
* Announcing HashiCorp Vault 1.7,
* Network address translation part 3 – the conntrack eventframework ,
* Try these 5 diagramming tools for network architecture,
* A sysadmin’s favorite Linux history command line hack,
* Distributed Monitoring 101,
* Topic 2.4 Linux Essentials Managing Files and Directories (38min),
* Setting up a VM on Fedora Server using Cloud Images and virt-install version 3,
* All The Important Features and Changes in Python 3.10,
* 6 OpenSSL command options that every sysadmin should know,
* Using KDC Proxy to authenticate users,
* C# 9 top-level programs and target-typed expressions,
* Exploring the differences between sudo and su commands in Linux,
* Troubleshoot Boot and Networking Issues with New EC2 Serial Console,
* Playing with modular synthesizers and VCV Rack,
* How to manage Linux passwords with the pass command,
* 8 steps to developing an Ansible role in Linux,
* How to deploy services with Ansible on both Windows and Linux ? * How to use OpenSSL and the Internet PKI on Linux systems,
* Topic 3.1 Linux Essentials Archiving Tools (38min).
Posted in Others
RECENT TECHNICAL ARTICLES & VIDEOS. Posted on March 25, 2021-
CertDepot
KUBERNETES:
* Gitlab CI/CD on Kubernetes,
* Kubernetes: what are Endpoints,
* Knative Eventing with Kafka and Spring Cloud,
* Getting started with KSOPS,
* Running Kafka command-line tools,
* Using Dekorate to generate Kubernetes manifests for Javaapplications
,
* DevConf.cz 2021: Making Kubernetes Safer with User Namespaces(21min) ,
* Low-budget self-hosted Kubernetes,
* Kubernetes Security,
* Multi-cluster monitoring with Thanos,
* Nova: find outdated or deprecated Helm charts running in yourcluster ,
* Set up Your K3s Cluster for High Availability on DigitalOcean,
* Free ebook: Production Kubernetes,
OPENSHIFT:
* Connecting with sigstore,
* Ask an OpenShift Admin Office Hour – etcd: The heart ofKubernetes
,
* Working With Operating System Templates in OpenShift Virtualization,
* K8s Integrity Shield (tech-preview): Protecting the Integrity of Kubernetes Resources with Signature,
* Asynchronous Data Replication with Scribe,
* Planning your containerization strategy on Red Hat OpenShift,
* Sizing Applications in Kubernetes,
* Azure Red Hat OpenShift Workshop , * Three ways to containerize .NET applications on Red Hat OpenShift,
* Backup and Restore of Kubernetes Stateful Application Data with CSIVolume Snapshots
,
* Airgap Installation for OpenShift Operators,
* Making Chaos Part of Kubernetes/OpenShift Performance andScalability Tests
,
* Is your Operator Air-Gap Friendly? * Davie Street Enterprises embraces GitOps with GitLab,
* OpenShift Roadmap Update (63min),
* How to use the Certificate Policy Controller to Identify Risks in Red Hat Advanced Cluster Management for Kubernetes,
* Ask an OpenShift Admin Office Hour – OpenShift + VMware = BFF! * Keycloak OIDC Identity Provider for OpenShift,
* How do OpenShift Over The Air Updates Work? * Rancher vs. OpenShift: Platform and Feature Comparison,
* How to Install Kasten K10 on OpenShift,
* DevSecOps with Tekton and OpenShift,
* Accessing a remote CodeReady Containers installation with macOS,
* Monitor Node.js applications on Red Hat OpenShift with Prometheus,
* How to Offer Service Running on OpenShift on AWS to Other AWS VPCsPrivately
,
* Install GitLab Runner on Red Hat OpenShift,
* Quick tips for the OpenShift oc client,
* DevConf.cz 2021: Building High Quality OpenShift Applications(21min) / (slides
),
* Red Hat OpenShift Service on AWS is now Generally Available,
* Using the NVIDIA GPU Operator to Run Distributed TensorFlow 2.4 GPU Benchmarks in OpenShift 4,
* Creating a Windows Base Image for OpenShift,
* Integrate Red Hat’s single sign-on technology 7.4 with Red Hat OpenShift (25/03/2021),
CONTAINERS:
* Running pi-hole as a podman container in Fedora,
* Technology preview: Running a container inside a container,
* How to use Docker Security Scan Locally,
* A Security Comparison of Docker, CRI-O and Containerd,
* Migrate from Docker to Containerd in Kubernetes,
* Building a container by hand using namespaces: The mount namespace,
* Everything You Need to Know About Moving from Docker in RHEL 7 toPodman in RHEL 8
,
* Quay.io Will Require a Red Hat Account After June 30, 2021… Wait,What?
* How to replace Docker with Podman on a Mac,
* Getting into the weeds with Buildah: The buildah unshare command,
SERVICE MESH:
* Announcing Linkerd 2.10: Extensions, Opaque Ports, Multi-clusterTCP, and more!
* Protocol detection and opaque ports in Linkerd,
RHEL:
* Simplify troubleshooting RHEL system configurations with Red Hat Insights Drift service,
* Using RHEL with your no-cost Red Hat Developer Subscription for Individuals with KVM,
* New Old Bugs in the Linux Kernel,
* No quarters needed: The Red Hat Arcade is now live! * CentOS CPE Weekly Report: 2021-02-26,
* CentOS CPE Weekly: 2021-03-05,
* How To Implement Browser Caching with Nginx’s header Module onCentOS 8
,
* What commands are missing from your bashrc file? * Install and Use NoMachine Remote Desktop on CentOS 8,
* Red Hat and Node.js: An Introduction,
* How Install and Configure a Docker Swarm Cluster on CentOS 8,
* Using Red Hat’s support tool at the command line to solvereal-world problems
,
CERTIFICATIONS:
* CKS Exam Series #11 NetworkPolicies Default Deny and Allowlist,
MISCELLANEOUS:
* Getting started with PromQL,
* Linux scripting: 3 how-tos for while loops in Bash,
* How I used Ansible to automate updates at home,
* No more Java in vscode-xml 0.15.0! * How to install an Ansible collection on a disconnected Ansiblecontrol node
,
* Gaining Help in Linux: Topic 2.2 Linux Essentials (27min),
* An introduction to Ansible facts,
* Monitor a UPS with a Raspberry Pi Zero W,
* NVMe vs M.2: What’s the difference? * 5 things Enterprise Architects should know about microservices,
* Fedora Workstation 34 Feature Focus: Updated Activities Overview,
* What to look for in Fedora Workstation 34,
* Bash scripting: How to read data from text files,
* Bash scripting: How to write data to text files,
* Announcing the Red Hat Enterprise Linux Certified AnsibleCollection
,
* 4 cool new projects to try in COPR for March 2021,
* Managing Python dependencies with the Thoth JupyterLab extension,
* Getting started with PostgreSQL on Linux,
* Topic 2.3 Linux Essentials (39min),
* Tips on managing IoT devices at the edge with Red Hat AnsibleAutomation
,
* Productivity with Ulauncher,
* Introduction to Linux Bash programming: 5 `for` loop tips,
* Announcing the release of Fedora Linux 34 Beta,
* PromQL for Humans , * Organizing Your AWS Environment Using Multiple Accounts,
* How to identify potentially vulnerable network daemons on yourLinux systems
,
* Db2 and Oracle connectors coming to Debezium 1.4 GA,
* Open RAN and O-RAN in Brief.
Posted in Others
LATEST TECHNICAL ARTICLES & VIDEOS. Posted on March 13, 2021-
CertDepot
KUBERNETES:
* Graceful shutdown of fpm and nginx in Kubernetes,
* Universal OPA Policies Development,
* Spring Boot on Knative,
* Autoscaling Redis applications on Kubernetes,
* KubeEye: An Automatic Diagnostic Tool that Provides a Holistic View of Your Kubernetes Cluster,
* Delivering more flexible and tailored cloud-native management with the latest version of Red Hat Advanced Cluster Management forKubernetes
,
* Operators over easy: an introduction to Kubernetes Operators,
* Attacking Kubernetes Clusters Through Your Network Plumbing: Part 1,
* Breaking down and fixing etcd cluster,
* Building Kubernetes Clusters using Argo and Kubernetes,
* Argo Workflows v3.0,
* Hassle-free multi-tenant K8S clusters management using Argo CD,
* Berglas: A tool for managing secrets on Google Cloud,
* Open-sourcing kube-secret-syncer: A Kubernetes operator to sync secrets from AWS Secrets Manager,
* Rancher, up and running, on EC2 – 1 – One node,
* Rancher, up and running, on EC2 – 2 – Three nodes,
* Rancher, up and running, on EC2 – 3 – Rancher setup,
* What are the key Kubernetes metrics that you have to monitor? * Scaling Celery workers with RabbitMQ on Kubernetes,
* Kubernetes – Pod Security Policies,
* Getting Started with Kubernetes,
OPENSHIFT:
* OpenShift 4.7: Quick Starts Extensibility,
* Packaging APIs for consumers with Red Hat 3scale API Management,
* How to install and configure Kasten to protect container workloads on Red Hat OpenShift and VMware vSphere,
* Updating a Boot Source Image,
* OpenShift 4.7: Node Feature Discovery Update,
* OpenShift 4.7: Windows Container Support for Red Hat OpenShift onvSphere
,
* User namespace support in OpenShift 4.7,
* Red Hat OpenShift Logging v5.0 Is Here And This Is What You CanExpect
,
* How to Deploy Operators on Disconnected Environments,
* OpenShift 4.7: Straight From the Source – OperatorHub Catalog Source UI Enhancements,
* Empowering Developers in the OpenShift Console,
* Sending Alerts to Slack in OpenShift,
* OpenShift Home Lab and Block Storage,
* Initializing Databases in OpenShift Deployment,
* OpenShift User Application Monitoring and Grafana the GitOps way! * API Testing in OpenShift Pipelines with Newman,
* Building a Simple Up/Down Status Dashboard for OpenShift,
* Updating Kustomize Version in ArgoCD,
* Managing OpenShift Cluster Configuration with GitOps,
* Install Red Hat OpenShift Platform 4.4.3 in disconnected network environment on bare metal VMs,
* Configuring Openshift Container Storage with Local disks on workers,
* Horizontal Pod Autoscaling of Quarkus Application Based on MemoryUtilization
,
* How to create your WordPress developer stack on OpenShift 4,
* Ask an OpenShift Admin Office Hour – VMs in OpenShift? * What’s new in Red Hat OpenShift’s Web Terminal Operator 1.2,
* New developer quick starts and more in the Red Hat OpenShift 4.7web console
,
* Cloud Native AppDev without Tears – Using odo to Boost yourWorkflow
,
* OpenShift Virtualization 4.7 Highlights,
* Customizing OpenShift 4 baremetal IPI network at installation time,
* Deploying Node.js applications to Kubernetes with Nodeshift andMinikube
,
* A guide to Red Hat OpenShift 4.5 installer-provisioned infrastructure on vSphere,
* Provision Red Hat CoreOS (RHCOS) Machines With Custom V3 IgnitionFiles
,
* OpenShift 4.7 – All the Information, All the Blogs,
* Demystifying Operator deployment in OpenShift,
* Multiple users in user namespaces on OpenShift,
* OpenShift compliance operator documentation,
* Kasten K10 by Veeam on Red Hat OpenShift,
CONTAINERS:
* Podman support for Older Distros on Kubic Project/OBS,
* Add these 4 tools to your Linux container toolbox,
* Evolution of k8s worker nodes,
* Making environment variables accessible in front-end containers,
* Building rootless containers for JavaScript front ends,
* Building a Linux container by hand using namespaces,
* Podman Community Meeting,
* Top 20 Dockerfile best practices,
* Signing and Verifying Container Images,
SERVICE MESH:
* Trace my mesh (part 2/3),
* Trace my mesh (part 3/3),
* Restricting User Access Via Service Mesh 2.0 and Red Hat SingleSign On
,
* Kiali Sprint 53 Demo – Service mesh management for Istio(22min) ,
* IstioCon 2021 videos,
RHEL:
* CentOS Community Newsletter, March 2021 (#2103),
* Red Hat Risk Report: A tour of 2020’s branded security flaws,
* Red Hat Adds Common Criteria Certification for Red Hat EnterpriseLinux 8
,
* Red Hat Delivers a More Secure Foundation for Modern Applications with First FIPS 140-2 Validation for Red Hat Enterprise Linux 8,
* Red Hat Satellite 6.8.4 has been released,
* Using Delve to debug Go programs on Red Hat Enterprise Linux,
* 5 ways Red Hat Insights can improve your sysadmin life,
* How to configure network settings with Ansible system roles,
CERTIFICATIONS:
* CKS Exam Series #10 Container Hardening,
* Top Kubernetes Certifications and Why They Matter,
* Corey Quinn’s AWS Beta Certification Exam Report,
MISCELLANEOUS:
* Automating Red Hat Virtualization with Red Hat Ansible AutomationPlatform
,
* The State of Enterprise Open Source 2021: Four results that maysurprise you
,
* Tips for using screen,
* Tips for using tmux,
* Red Hat Introduces Latest Update to Red Hat Process Automation,
* SAP HANA 2.0 Certified on RHEL 8.2 and 7.9: Top 5 reasons why youshould care
,
* Understanding Sockets,
* The Urban Penguin: Topic 2.1 Linux Essentials (46min),
* Introduction to the Node.js reference architecture, Part 1:Overview
,
* How to use Poetry to manage your Python projects on Fedora,
* An introduction to JavaScript SDK for CloudEvents,
* Using Nmap results to help harden Linux systems,
* Linux sysadmins: What’s your favorite IDE? * 3Scale Mini-Guide – APICast Self-Managed for On-Premisedeployments
,
* What’s New in the Ansible Content Collection for Kubernetes –1.2
,
* An illustrated guide to CQRS data patterns,
* Introducing sigstore: software signing for the masses,
* Write your own Red Hat Ansible Tower inventory plugin,
* The effects of adding users to a Linux system,
* Keeping Linux files and directories in sync with rsync.
Posted in Others
RECENT TECHNICAL ARTICLES & VIDEOS. Posted on March 1, 2021-
CertDepot
KUBERNETES:
* Kubernetes-event-exporter: Export Kubernetes events to multiple destinations with routing and filtering,
* Create a Highly Available Kubernetes Cluster Using Keepalived andHAproxy
,
* Working with kubernetes configmaps, part 1: volume mounts,
* Kubernetes monitoring with Prometheus, the ultimate guide,
* Nova: Find outdated or deprecated Helm charts running in yourcluster ,
* Kubeconform: a FAST Kubernetes manifests validator, with support for Custom Resources! * Set up Your K3s Cluster for High Availability on DigitalOcean,
* Kubernetes admission controllers in 5 minutes,
* Blue-green deployment with a database on Kubernetes,
* Multihost deployments with Kubeinit,
* NVIDIA GPU Operator: Simplifying GPU Management in Kubernetes(15min) ,
* Adding More Support in NVIDIA GPU Operator,
* Running GPU workloads on OpenShift (25min),
* How to Backup and Restore MySQL on Scality RING using Kasten K10,
* Breaking down and fixing Kubernetes,
* Topology Awareness in Kubernetes Part 2: Don’t we already have aTopology Manager?
* A tool to manage the lifecycle of applications on a Kubernetesplatform ,
* Kubernetes Cluster Over-Provisioning: Proactive App Scaling,
* Custom policies in Red Hat 3scale API Management, Part 1: Overview,
* Rolling out and Rolling back updates with Zero Downtime onKubernetes Cluster
,
* Sysdig contributes Falco’s kernel module, eBPF probe, and libraries to the CNCF,
* kubectl-view-webhook: a tool to visualize critical parts of the admission webhook configuration resource,
* Advertising Kubernetes Service IPs with Calico and BGP,
* How to monitor coreDNS,
* Headlamp: an easy-to-use and versatile web UI for Kubernetes,
* ArgoCD backup cronjob – DRP,
* Sticky Sessions in Kubernetes,
OPENSHIFT:
* OpenShift, Databases and You: When to Put Containerized Database Workloads on OpenShift,
* Creating an Argo Workflow With Vault Integration Using Helm,
* Home Lab Setup for OpenShift Remote Workers Using WireGuard,
* Topology Aware Scheduling in Kubernetes Part 1: The High LevelBusiness Case
,
* Business Centric AI/ML With Kubernetes – Part 2: Data Preparation,
* Business Centric AI/ML With Kubernetes – Part 3: GPU Acceleration,
* How to work around Docker’s new download rate limit on Red HatOpenShift
,
* How to create a TLS/SSL certificate with a Cert-Manager Operator onOpenShift
,
* DevConf.cz: OpenShift Serverless Functions: CLI to Cluster in 3Minutes
,
* DevConf.cz: Building High Quality Openshift Applications,
* DevConf.cz: Making a WordPress developer stack on OpenShift 4(19min) / slides
,
* DevConf.cz: Preventing catastrophes using OpenShift data,
* DevConf.cz: Processing OpenShift 4 health data at scale,
* DevConf.cz: Openshift for low latency and real time workloads,
* Enabling Tanzu Mission Control Data Protection on Red Hat OpenShift,
* OpenShift Administrator’s Office Hour – Windows Containers,
* Cloud-Native Database GitOps on OpenShift,
* Automatic Open Source-based Data Pipelines? Openshift To theRescue!
* Create, scale, upgrade, and rollback an application on Red HatOpenShift
,
* How Full Is My Cluster, Part 6: Proactive Node Autoscaling,
* Installing Red Hat OpenShift API Management,
* 5 steps to manage your first API using Red Hat OpenShift APIManagement
,
* Announcing OpenShift GitOps,
* Red Hat OpenShift 4.7 Is Now Available,
* OpenShift Container Platform 4.7 Release Notes,
* What’s New in OpenShift Virtualization in OCP 4.7,
* Business Centric AI/ML With Kubernetes – Part 4: ML/OPs,
* OpenShift 4.7: Added Support for Localization and Language,
* How the oc debug command works in OpenShift,
* Running an OpenShift Worker Node on AWS Wavelength for EdgeApplications
,
* OpenShift.tv: Ask an OpenShift Admin – What’s new in OpenShift4.7
,
* Building a simple contextual chatbot with Rasa and OpenShiftPipelines
,
CONTAINERS:
* How to manage Linux container registries,
* Basic Networking Guide for Podman,
* Quay OCI Artifact Support for Helm Charts,
* Introducing Red Hat Vulnerability Scanner Certification,
* Sharing supplemental groups with Podman containers,
* 6 resources and 3 tips to help you enter the world of Linuxcontainers ,
* OpenShift Commons Briefing: Clair Overview and Update,
* DevConf.cz: Building Smaller Container Images,
* Deep Dive into Docker Internals – Union Filesystem,
STORAGE:
* Installing & Working with the Dell EMC PowerMax CSI Driver for Kubernetes and Red Hat OpenShift,
SERVICE MESH:
* Red Hat Developer Istio tutorial,
* Trace my mesh (part 1/3),
* Kiali releases 1.29 and 1.30: Improved graph, improved trace pages, multi-cluster support and more,
* Customising istio access logs,
* Jaeger Persistent Storage With Elasticsearch, Cassandra & Kafka,
RHEL:
* Bringing Red Hat Resilient Storage to the public cloud,
* CentOS Stream: Why it’s awesome,
* CentOS Creator Gregory Kurtzer Discusses His New Distro, RockyLinux
,
* X.509 user certificate authentication with Red Hat’s singlesign-on technology
,
* Getting Started With Performance Tuning (6min),
* Migrate To AlmaLinux From CentOS 8 Using Almalinux-deploy Script,
* The history of open source risk reporting,
* Red Hat Product Security risk report 2020,
* Defense in depth with Red Hat Insights,
* Converting from CentOS Linux 8 to CentOS Stream 8 (1min),
* How To Install ERPNext on CentOS 8,
* How to Install Shopware 6 with NGINX and Let’s Encrypt on CentOS8
,
* Install and Use Guacamole Remote Desktop on CentOS 8,
* Extending no-cost Red Hat Enterprise Linux to open sourceorganizations
,
* Managing loop devices in CentOS 8 / RHEL 8 (34min),
CERTIFICATIONS:
* A how-to guide for your first remote Red Hat certification exam,
* Getting started with the OpenShift Platform Developer learning path,
* CKS Exam Series #9 RBAC v2,
* Curated resources for the CKS Certification exam,
MISCELLANEOUS:
* Handling secrets in your Ansible playbooks,
* Red Hat Satellite 6.9 Beta now available with Smart Management,
* Sysadmin hardware: Considerations for planning a PC build,
* How to use LVM snapshots to restore Linux systems,
* Ansible 3.0.0 Q&A , * Announcing the Community Ansible 3.0.0 Package,
* Red Hat Ansible Automation Platform Product Status Update,
* A first look into Azure VMware Solution,
* PromQL for Humans , * An illustrated guide to 12 Factor Apps,
* Move your Linux from legacy BIOS to UEFI in place with minimaldowntime ,
* Introduction to ansible-test,
* Five key tips to start your network automation adoption journey,
* Using Irssi inside a Linux tmux session,
* How to use the sipcalc Linux command line tool,
* Debuginfod project update: New clients and metrics,
* Tips for writing portable assembler with GNU Assembler (GAS),
* Sysadmin university: Quick and dirty Linux tricks.
Posted in Others
LATEST TECHNICAL ARTICLES & VIDEOS. Posted on February 17, 2021-
CertDepot
KUBERNETES:
* Local Development Clusters,
* Kubernetes – Pod Security Policies,
* Kubenurse: Kubernetes network monitoring and export of metrics as Prometheus endpoints , * Writing Kubernetes Sample Controller in Java,
* Deploying Kubernetes Operators with Operator Lifecycle Managerbundles
,
* An example of using dynamic client of k8s.io/client-go,
* How to Set Up and Manage Logs with Kubernetes,
* Top Kubernetes YAML Validation Tools,
* Helm: reusable chart – named templates, and a generic chart for multiple applications,
* How to setup a Kubernetes Cluster on AWS using Kops,
* Auto-labeling Kubernetes resources with Kyverno,
* Making Sense of Taints and Tolerations in Kubernetes,
* Running Windows containers on the Azure Kubernetes Service (AKS),
* iptables: How Kubernetes Services Direct Traffic to Pods,
* sKan: Scan Kubernetes resource files and helm charts for security configurations issues and best practices,
* PowerfulSeal: A powerful testing tool for Kubernetes clusters,
* Open Policy Agent (OPA): Up and Running,
* K8s Deployments & Replicasets – Part1,
* How a Kubernetes Pod Gets an IP Address,
* K8up: Kubernetes Backup Operator,
* Create Kubernetes Objects with YAML – Lesson from Hands on Kubernetes Video Training (22min),
* Introducing Coil v2, a Kubernetes network plugin to build Egressgateway ,
* Fast vs Easy: Benchmarking Ansible Operators for Kubernetes,
* Extending applications on Kubernetes with multi-container pods,
* Kubernetes README ,OPENSHIFT:
* Java Development on OpenShift with odo,
* Address CVEs Using Red Hat Advanced Cluster Management GovernancePolicy Framework
,
* Running Microsoft SQL Server 2019 on OpenShift using Red Hat OpenShift Container Storage,
* OpenShift Administrator’s Office Hour: Disconnected OpenShift(61min) ,
* Migration Toolkit for Containers (7min),
* Extending OpenShift Security and Observability for Kubernetes Networking and Microservices with Calico Enterprise from Tigera,
* Introduction to OpenShift,
* Openshift Security Series – Part 1,
* OpenShift Console Meets GraphQL Over WebSocket,
* Using an external registry with OpenShift 4,
* What makes Azure Red Hat OpenShift a streamlined experience fordevelopers?
* Enhancing the development loop with Quarkus remote development,
* Developing your own custom devfiles for odo 2.0,
* OpenShift Administrator’s Office Hour – Controlling Pod Resource Consumption,
* 8 Answers to 7 OpenShift Questions,
* RedHat released a series of 80’s style arcade games,
* DevConf.cz: OpenShift Multi-Cluster Management with RHACM,
* Hybrid Cloud Disaster Recovery on OpenShift,
* Moov to Digital Banking on OpenShift,
STORAGE:
* Object storage with OpenShift Container Storage,
* Installing & Working with the Dell EMC PowerStore Bloc & File CSI Driver for Kubernetes and RedHat OpenShift,
CONTAINERS:
* Red Hat Quay 3.4 Is Here,
* OpenShift Container Registries,
* Deliver your applications to edge and IoT devices in rootlesscontainers
,
* Dragonfly image service, providing fast, secure and easy access tocontainer images,
* The Docker Handbook – 2021 Edition,
* Easy Development Dependency Management With Podman and Tent,
* How to setup Kafka cluster for 15K events per second on AWS usingDocker
,
* Easyseccomp: DSL language to write seccomp filters,
* CentOS Stream Container images available on quay.io,
* DevSecOps: Image scanning in your pipelines using quay.io scanner,
* Podman Release v3.0.0,
* How to use Docker Security Scan Locally,
* Installing Nextcloud 20 on Fedora Linux with Podman,
* 8 Tips for reliable automation for Linux container builds,
SERVICE MESH:
* Grafana Tempo: a high volume, minimal dependency distributedtracing backend ,
* External TCP/TLS traffic to Openshift cluster with ISTIO,
RHEL:
* CentOS Dojo videos , * How to change the identity of a Linux system,
* Red Hat Summit Virtual Experience 2021 registration is live! * Visualizing System Performance with RHEL 8 Part 3: Kernel Metric Graphing with Performance Co-Pilot, Grafana, and Bpftrace,
* STIG Security Profile in Red Hat Enterprise Linux 7,
* DHCP server setup in RHEL 8,
* Automate RHEL installations with PXE Boot server,
* How to use Red Hat Insights to maintain your Linux systems,
* DISA Has Released the Red Hat Enterprise Linux 8 STIG,
* How to activate your no-cost Red Hat Enterprise Linux subscription,
* How to Install EtherCalc on CentOS 8,
* CentOS CPE Report: 2021-02-05,
* CentOS Dojo @ FOSDEM, 2021,
* CentOS Community Newsletter, February 2021 (#2102),
* Hardening HashiCorp Vault with SELinux,
* Get started with RHEL for Edge,
* Understanding Multipath TCP: High availability for endpoints and the networking highway of the future,
* Automating mixed Red Hat Enterprise Linux and Windows Environments,
* How to Install Kanboard Project Management Software on CentOS 8,
* How to Install PostGIS PostgreSQL database extender on CentOS 8,
* Frozen SELinux Troubleshooting – Fixing issue after resetting root password (9min) , * CentOS CPE Weekly: 2021-02-14,
* How to Install MongoDB on Ubuntu 20.04 and CentOS 8,
CERTIFICATIONS:
* CKS Exam Series #8 RBAC,
* Red Hat Learning Subscription Newsflash #8,
* Certified Kubernetes Security Specialist Study Guide,
MISCELLANEOUS:
* How Red Hat ported OpenJDK to 64-bit Arm: A community history,
* Red Hat Satellite 6.8.3 has been released,
* Authentication and Authorization: The key to Single Sign-In (SSO)workflow
,
* Using Node.js? The OpenJS Foundation would like to hear yourfeedback
,
* How to automate system reboots using the Ansible reboot module,
* 3 career opportunities for IT Architects in 2021,
* Enumerating a new network with Nmap,
* 6 overlooked facts of microservices,
* Automating IP Address Management with Red Hat Ansible and Infoblox,
* Ansible resources
,
* Capturing network traffic in an eXpress Data Path (XDP) environment,
* Fedora Aarch64 on the SolidRun HoneyComb LX2K,
* Open Data Hub 1.0.0 Release Guide,
* Yandex.Tank: load testing tool – an overview, configuration, andexamples
,
* Spring Boot on Quarkus: Magic or madness? * Add standardized support information to your Node.js modules,
* Got automation? Here’s a quick guide to get you up to speed onAnsible ,
* Basic concepts of encryption in cryptography,
* RabbitMQ
,
* Network address translation part 2 – the conntrack tool,
* Quarkus – The next wave of kubernetes native Java framework,
* Advanced Git Features You Didn’t Know You Needed,
* Integrating Spring Boot with Red Hat Integration Service Registry,
* Cockroach Labs 2021 Cloud Report,
* DevConf.CZ: ACME: Certificate management has never been easier,
* Avoid cost overruns: How to manage your quotas programmatically.
Posted in Others
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UPCOMING EVENTS (LOCAL TIME) There are no events. RHCSA7: TASK OF THE DAY Allowed time: 15 minutes. Get an iso image of CentOS 7 (or a DVD) and set up a local repository. RHCE7: TASK OF THE DAY Allowed time: 15 minutes. Configure a Samba server called MYSERVER, belonging to the MYGROUP group, sharing the /shared directory with the name "shared".RECENT COMMENTS
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