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ConfigMap

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System Architect Go
System Architect Go
Nov 16, 2024 · Cloud Native

Kubernetes 10 Common Questions and Answers

This article answers ten common Kubernetes questions, covering pod scheduling strategies, OOM behavior, dynamic ConfigMap updates, pod stability, ClusterIP service load balancing, log collection, liveness probes, scaling mechanisms, exec access, and troubleshooting container restarts, providing concise explanations for each scenario.

ClusterIPConfigMapHorizontal Pod Autoscaler
0 likes · 9 min read
Kubernetes 10 Common Questions and Answers
Test Development Learning Exchange
Test Development Learning Exchange
Nov 8, 2023 · Cloud Native

Introduction to Kubernetes Storage Volumes and Their Types

This article provides an overview of Kubernetes storage options, describing temporary and persistent volume types such as EmptyDir, HostPath, ConfigMap, Secret, PersistentVolume, PersistentVolumeClaim, StorageClass, and NFS, and includes practical YAML examples for creating and using each storage solution in a cluster.

ConfigMapHostPathKubernetes
0 likes · 28 min read
Introduction to Kubernetes Storage Volumes and Their Types
Test Development Learning Exchange
Test Development Learning Exchange
Nov 1, 2023 · Cloud Native

Comprehensive Guide to Installing, Configuring, and Deploying Applications on Kubernetes (K8s)

This article provides a step‑by‑step tutorial on preparing hardware, installing Docker, downloading and configuring Kubernetes, deploying the control plane and workloads, managing clusters, and detailed hands‑on examples for ConfigMaps, Jobs, Deployments, StatefulSets, and common applications such as Flask, MySQL, Redis, GitLab, and Jenkins, all illustrated with ready‑to‑use YAML and kubectl commands.

ConfigMapDeploymentDocker
0 likes · 18 min read
Comprehensive Guide to Installing, Configuring, and Deploying Applications on Kubernetes (K8s)
DevOps
DevOps
Oct 10, 2023 · Operations

Common Kubernetes Pod Issues and Troubleshooting Guide

This article outlines typical Kubernetes pod failure states such as ContainerCreating, ErrImagePull, Pending, CrashLoopBackOff, and UnexpectedAdmissionError, explains their common causes—including Docker service problems, storage mount errors, ConfigMap misconfigurations, and image issues—and provides practical troubleshooting steps and example manifests.

ConfigMapDockerKubernetes
0 likes · 10 min read
Common Kubernetes Pod Issues and Troubleshooting Guide
Efficient Ops
Efficient Ops
Oct 9, 2023 · Cloud Native

Why Do Kubernetes Pods Get Stuck? Decoding Common Pod Status Errors

Learn how to diagnose and resolve frequent Kubernetes pod status issues such as ContainerCreating, ErrImagePull, Pending, CrashLoopBackOff, and UnexpectedAdmissionError by examining Docker services, storage mounts, ConfigMaps, image repositories, and node resources, with practical examples and command‑line solutions.

ConfigMapContainerCreatingErrImagePull
0 likes · 9 min read
Why Do Kubernetes Pods Get Stuck? Decoding Common Pod Status Errors
DevOps Cloud Academy
DevOps Cloud Academy
Jul 9, 2023 · Cloud Native

Designing Scalable Kubernetes Applications: Best Practices

This article outlines comprehensive best‑practice guidelines for building Kubernetes applications, covering scalability design, containerization, pod scope, configuration management, health probes, deployments, service discovery, storage, monitoring, security, and CI/CD integration to achieve robust, highly available workloads.

CI/CDConfigMapContainerization
0 likes · 9 min read
Designing Scalable Kubernetes Applications: Best Practices
DevOps Cloud Academy
DevOps Cloud Academy
Jun 25, 2023 · Cloud Native

Advanced Helm Chart Techniques: Setting Replica Limits, Sharing Code with Sub‑templates, and Generating ConfigMaps

This article explains how to create and customize Helm charts by setting replica count ceilings, reusing logic with sub‑templates, and generating properly indented ConfigMaps using toYaml and indent functions, providing practical examples and command‑line snippets for Kubernetes deployments.

ChartConfigMapDevOps
0 likes · 12 min read
Advanced Helm Chart Techniques: Setting Replica Limits, Sharing Code with Sub‑templates, and Generating ConfigMaps
DevOps Cloud Academy
DevOps Cloud Academy
Jun 24, 2023 · Cloud Native

Using ConfigMap to Dynamically Configure Nginx in Kubernetes

This article explains what a Kubernetes ConfigMap is, when to use it, and provides step‑by‑step instructions with YAML examples for creating a ConfigMap, mounting it in an Nginx deployment, and making the server_name parameter dynamic using pod metadata.

ConfigMapDeploymentDevOps
0 likes · 8 min read
Using ConfigMap to Dynamically Configure Nginx in Kubernetes
Java Architect Essentials
Java Architect Essentials
Jun 13, 2023 · Cloud Native

Zero‑Downtime Deployment with K8s and SpringBoot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Integration, and Config Separation

This article demonstrates how to achieve zero‑downtime releases for SpringBoot applications on Kubernetes by configuring readiness/liveness probes, rolling update strategies, graceful shutdown hooks, horizontal pod autoscaling, Prometheus monitoring, and externalized configuration via ConfigMaps.

ConfigMapHealthCheckKubernetes
0 likes · 13 min read
Zero‑Downtime Deployment with K8s and SpringBoot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Integration, and Config Separation
Selected Java Interview Questions
Selected Java Interview Questions
Apr 19, 2023 · Operations

Zero‑Downtime Deployment with Kubernetes and Spring Boot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Monitoring, and Config Separation

This guide explains how to achieve zero‑downtime releases of a Spring Boot application on Kubernetes by configuring readiness/liveness probes, rolling‑update strategies, graceful shutdown, horizontal pod autoscaling, Prometheus metrics collection, and externalized configuration via ConfigMaps.

ConfigMapHealth CheckKubernetes
0 likes · 11 min read
Zero‑Downtime Deployment with Kubernetes and Spring Boot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Monitoring, and Config Separation
Ops Development Stories
Ops Development Stories
Sep 9, 2022 · Cloud Native

Master Kubernetes Secrets & ConfigMaps: Creation, Usage, and Best Practices

This guide explains how to create and manage Kubernetes Secrets and ConfigMaps, covering YAML and kubectl methods, different secret types, mounting techniques, environment variable injection, image pull secrets, and practical examples for secure configuration handling in cloud‑native environments.

ConfigMapDevOpsK8s
0 likes · 18 min read
Master Kubernetes Secrets & ConfigMaps: Creation, Usage, and Best Practices
Efficient Ops
Efficient Ops
Nov 8, 2021 · Cloud Native

Mastering Kubernetes Environment Variables: Static, Dynamic, and ConfigMap Strategies

This article explains how to effectively use static and dynamic environment variables in Kubernetes, including explicit definitions, implicit inclusion, Helm injection, and ConfigMap-based approaches, to streamline operations, reduce complexity, and improve microservice configuration and logging.

ConfigMapDevOpsEnvironment Variables
0 likes · 7 min read
Mastering Kubernetes Environment Variables: Static, Dynamic, and ConfigMap Strategies
Architecture Digest
Architecture Digest
Jan 14, 2021 · Cloud Native

Understanding Kubernetes Components Through an Aquarium Analogy

The article uses an aquarium metaphor to explain Kubernetes fundamentals—including Pods, Nodes, Scheduler, ReplicaSets, Services, Network Policies, and ConfigMaps—by comparing applications to fish, tanks to Pods, rooms to Nodes, and the control plane to the aquarium manager, making complex concepts easier to visualize.

ConfigMapContainersKubernetes
0 likes · 7 min read
Understanding Kubernetes Components Through an Aquarium Analogy
Cloud Native Technology Community
Cloud Native Technology Community
May 20, 2020 · Cloud Native

Understanding Istio Sidecar Injection: The istio-sidecar-injector Component

This article explains how Istio injects sidecar containers into user‑space Pods using the istio‑sidecar‑injector component, covering automatic and manual injection methods, the underlying MutatingAdmissionWebhook configuration, the initContainer and sidecar containers added, and the associated ConfigMap and volume setups.

ConfigMapIstioKubernetes
0 likes · 6 min read
Understanding Istio Sidecar Injection: The istio-sidecar-injector Component