This article explains how Ansible, a Python‑based automation tool, can be used to create, modify, and delete Unix crontab entries, covering why automation is needed, installation steps, and practical playbook examples for managing scheduled tasks across multiple hosts.
Ansible is a model-driven configuration manager that uses SSH for remote connections, featuring a core engine, modules, plugins, playbooks, connection plugins, and host inventories; this guide explains its architecture, operation flow, and details the seven primary commands with usage examples.
Learn how to install Ansible, then create, modify, and delete crontab entries across multiple hosts using Ansible playbooks, with detailed examples of YAML configurations and command-line instructions that illustrate Infrastructure as Code for reliable scheduled task management.
This article explains how the Android department uses Ansible to automate server deployment, detailing installation, inventory setup, playbook structure, and example configurations for Cockpit monitoring and GitLab Runner, including command snippets and code examples to streamline operations.
The article traces the evolution from cumbersome manual deployments to modern automated, code‑driven practices such as Infrastructure as Code, Environment as Code, Orchestration as Code, and Pipeline as Code, highlighting tools like Ansible, Terraform, Docker, Kubernetes, and Jenkins to improve productivity, reliability, and scalability in DevOps operations.
This article details Vivo's approach to managing thousands of Kubernetes nodes across multiple data centers by developing a declarative Kubernetes‑Operator, modular Ansible scripts, and a comprehensive CI matrix to automate deployment, scaling, upgrades, and fault recovery while reducing operational risk.
This article explains how Ansible’s async and poll parameters enable background execution of long‑running tasks, allowing playbooks to continue without blocking, and provides practical examples, configuration tips, and status‑checking techniques for reliable DevOps automation.
This article introduces Ansible as a model‑driven configuration manager, explains its core architecture and execution workflow, and provides detailed usage of its seven primary commands with practical code examples for automating infrastructure tasks.
Ansible, a rapidly popular open‑source automation tool built on Python, enables batch system configuration, program deployment, and command execution through thousands of built‑in modules, offering a simple yet powerful solution for operations engineers, illustrated here with 16 comprehensive images.
This article provides a comprehensive guide to Ansible Playbooks, covering their purpose, how they work, YAML basics, core components, directory structure, hosts, remote users, tasks, variables, templates, handlers, tags, and command‑line usage with practical code examples.
This guide explains how to configure SSH reverse tunneling to connect a local machine with isolated client networks, enabling batch initialization of servers via Ansible Playbook, covering server preparation, enabling GatewayPorts, creating the tunnel, and setting up local SSH proxy configurations.
Vivo’s engineering team shares their practical experience creating a Karmada‑Operator using the Operator SDK and Ansible, detailing background, deployment challenges, design choices, API and architecture, etcd management, member cluster handling, CI pipeline, and performance testing to enable robust multi‑cloud Kubernetes orchestration.
vivo created an Ansible‑based Karmada‑Operator that declaratively manages multi‑cluster deployments, etcd backup/restore, and control‑plane upgrades via custom CRDs and CI pipelines, addressing the limitations of existing tools and providing extensible, reliable, self‑healing orchestration for large‑scale Kubernetes environments.
Ansible, an open‑source, agent‑less automation platform born in 2012, simplifies large‑scale service deployment and configuration through YAML playbooks, offering features like batch command execution, modular architecture, idempotency, and SSH‑based management, making it essential for efficient operations in growing IT environments.
This article presents a comprehensive outline of a shell operations development course, covering core knowledge maps, SSH multi‑host management, distributed application deployment with Kafka, multi‑host service control scripts, and essential Ansible automation techniques for modern DevOps environments.
The article explains how enterprise automation should be treated as a strategic business initiative, outlines the value drivers such as quality, agility, compliance and cost savings, and presents a framework—including Ansible Automation Platform—to integrate and coordinate diverse automation projects across hybrid cloud environments.
This guide explains how to use Zadig’s cloud‑native continuous delivery platform to deploy a sample vm‑microservice‑demo project, covering two connection methods—direct host deployment and jump‑box (bastion) deployment—including host configuration, project and service setup, build and deployment scripts, and workflow automation.
This article introduces Ansible as a model‑driven configuration manager, explains its basic architecture and working principles, and provides detailed usage of its seven core commands with practical code examples for automation and DevOps tasks.
An Ansible custom module was developed to back up MongoDB databases within a Docker container, including Dockerfile setup, Python handler code, parameter definitions, and a test playbook, with both successful and failure scenarios demonstrated, highlighting automation benefits for operations.
Vivo describes how it built a Kubernetes‑Operator and CI pipeline to automate large‑scale, multi‑data‑center cluster deployment, modular management, and lifecycle operations using Ansible, kubeadm, and kubevirt, improving reliability, maintainability, and scalability of its Kubernetes fleets.
Vivo replaced error‑prone manual Ansible playbooks with a custom Kubernetes Operator that uses declarative CRDs and modular Ansible scripts to automate the full lifecycle—deployment, scaling, upgrades, and recovery—of thousands of nodes across multiple data‑centers, supported by extensive CI testing and future kubeadm integration.
This comprehensive guide walks you through installing Ansible, configuring its core files, defining inventories, using common modules, writing YAML syntax, creating variables, applying conditional tests, iterating tasks, building playbooks, organizing roles, and leveraging tags for selective execution.
This article demonstrates how to package Ansible in a Docker container, use the mysql_db module to create MySQL backups, and run a simple playbook, highlighting the benefits of containerized deployment for clean, flexible operations automation.
This article provides a comprehensive step‑by‑step guide for senior DBAs to upgrade an online TiDB 2.1.x cluster to version 4.0.13 via data migration, detailing environment assessment, configuration changes, component deployment, full and incremental data transfer, consistency verification, permission synchronization, and traffic switchover.
This article details a real‑world cloud migration journey using Tencent Cloud services, explains one‑click provisioning of components like Zookeeper and Redis, outlines data migration strategies, and demonstrates how to automate build and deployment pipelines with Ansible playbooks and scripts.
This guide demonstrates how to use various Ansible Windows modules—such as win_ping, raw, win_copy, win_unzip, win_service, win_command, win_file, win_user, win_shell, and win_reboot—to retrieve network information, transfer and unzip files, manage services, manipulate files, create users, and reboot remote Windows hosts.
This article introduces Ansible’s agent‑less architecture, explains its reliance on SSH and Python, and demonstrates common copy, command, and backup tasks through clear command‑line examples for remote hosts.
This article demonstrates how to employ Ansible, a Python‑based SSH automation framework, to create a user with a home directory on multiple remote servers, verify the creation, and then remove the user and its home directory in a batch operation.
This article demonstrates how to use Ansible playbooks and simple shell scripts to identify the CentOS major version and system architecture, while also providing promotional links to related DevOps and Kubernetes tutorials.
This guide demonstrates how to automate the installation, configuration, and service management of Nginx across multiple hosts using Ansible roles, detailing environment setup, directory structure, task definitions, and execution commands.
RHEL 8.5, the latest Red Hat Enterprise Linux release, brings extensive container, Kubernetes, Ansible system‑role, and performance‑monitoring improvements—including Podman image support, signed container images, rootless OverlayFS, enhanced Cockpit console, and new roles for VPN, Postfix, LVM VDO, and Microsoft SQL Server—making it ready for any platform.
This guide walks you through installing Apache OpenWhisk on an Ubuntu 18.04 desktop, configuring its limits and CouchDB storage, deploying the platform with Ansible, setting up the wsk CLI, and creating and invoking a simple Fibonacci action to verify the deployment.
Ansible, a rapidly popular open‑source automation tool built on Python, simplifies batch system configuration, program deployment, and command execution with thousands of built‑in modules, offering a beginner‑friendly yet powerful solution for modern operations teams.
Ansible, a rapidly rising open‑source automation platform, lets operations engineers streamline workflows, boost efficiency, and cut human error by offering thousands of built‑in modules and a simple, agent‑less interface that’s easy for beginners yet powerful enough for complex tasks.
This article presents a practical, out‑of‑the‑box ELK‑based solution for private deployments, detailing design principles, rapid one‑click setup with Jenkins, component choices, log and metric collection using Beats, alerting with ElastAlert, and automated Kibana dashboard configuration.
This article shares a comprehensive Ansible presentation, offering detailed slides that guide readers through core concepts, architecture, modules, and best practices to enhance their automation expertise, including real-world examples, workflow automation strategies, and tips for effective playbook development.
This presentation by NetEase senior SRE Jin Chuan details the current state of NetEase's big data platform, introduces the internally built EasyOps management system, explains a generic Ansible‑based operation framework, describes Prometheus/Grafana monitoring and alerting, and shares practical lessons on network, storage, and cloud migration for large‑scale Hadoop services.
This tutorial introduces Ansible, outlines its main features, guides you through preparing a lab environment, configuring hosts and the master node, and demonstrates common modules and command options with clear code examples for effective automation.
The presentation details NetEase's big data platform operations, covering current usage, the internally built EasyOps control system, a generic service‑operation framework based on Ansible, Prometheus‑Grafana monitoring, configuration management, network and storage optimizations, and lessons learned from cloud migration.
This guide explains Ansible playbooks, their required hosts and tasks sections, optional fields like name and become, YAML indentation rules, module usage, and demonstrates creating and executing a playbook that installs and starts Apache on a target host.
This guide explains Ansible variable naming conventions, the three scopes (global, play, host/group), and demonstrates each with clear playbook snippets, showing how to define, import, and override variables using command‑line options, vars, vars_files, host_vars, and group_vars.
This tutorial walks you through configuring three CentOS 7.9 nodes, disabling firewalls, setting hostnames, enabling time sync, establishing password‑less SSH, installing required packages, and using Ansible to clone, configure, and deploy a Ceph Nautilus cluster in about ten minutes.
This guide explains how to configure Ansible inventory, write a YAML playbook that updates the root password on two servers, execute the playbook, and verify the password change through SSH login, illustrating a flexible automation workflow for multi‑host deployments.
This guide explains how to use Ansible to automatically install and configure Zabbix‑agent on a large number of Linux servers, covering inventory setup, a deployment script, a playbook, execution commands, and verification of the agent listening on port 10050.
This article demonstrates how to create and run an Ansible Playbook that changes hostnames and appends entries to /etc/hosts on two Linux servers, showing the required inventory, YAML playbook, command execution, and verification steps with accompanying screenshots.
This tutorial explains how to incorporate Kubernetes into an existing CI/CD pipeline using Jenkins, Ansible, Docker, and HAProxy to achieve high‑availability microservice deployments, seamless production code changes, and scalable container management for both large and small software companies.
Ansible is a simple, powerful, agent‑less automation language that uses YAML‑based playbooks to manage configurations, install software, and orchestrate tasks across Linux, Windows, Unix, and network devices; this guide explains its architecture, installation on Ubuntu, configuration files, inventory setup, and common ad‑hoc commands.
This guide introduces Ansible’s core concepts, installation, inventory configuration, command‑line usage, built‑in modules, playbook syntax, handlers, and role structures, providing step‑by‑step examples that enable engineers to automate Linux system administration efficiently and reliably.
This tutorial explains how to incorporate Kubernetes into an existing CI/CD workflow using Jenkins, shared libraries, Docker, Ansible playbooks, and HAProxy to achieve high‑availability microservice deployments, covering tool setup, pipeline configuration, Dockerfile creation, Kubernetes manifests, and scaling new services.
This guide explains how to batch‑install Docker on Linux servers by creating a deployment directory, writing an Ansible playbook that unpacks the Docker binary, copies the service file, configures systemd, and verifies the installation with Docker commands.
This article explains how Ansible playbooks—YAML‑based, flexible configuration management files—can be used to automate the installation, configuration, and service management of Nginx across multiple hosts, including preparation of servers, playbook structure, execution commands, and verification steps.
In May 2020 GitLab partnered with OnGres to upgrade a 12‑node PostgreSQL 9.6 cluster to version 11, using a carefully planned pg_upgrade process, automated Ansible playbooks, Patroni HA, and a detailed rollback strategy to keep a 6 TB dataset consistent while serving 300 k transactions per second.
This guide demonstrates how to automate the quarterly rotation of root passwords across multiple Linux servers by configuring password‑less SSH, creating an Ansible playbook, testing it, and executing it with or without inventory‑based credentials.
This article provides a comprehensive guide to Ansible, covering its purpose, key features, installation steps, SSH key setup, inventory configuration, core commands, essential modules, playbook syntax, handlers, role structures, and practical examples for automating Linux system administration.
This article introduces essential Ansible terminology such as control node, managed nodes, inventory, host files, modules, tasks, playbooks, and roles, and demonstrates basic commands for user creation, directory management, file deletion, and package handling on Linux hosts.
This article introduces Ansible as an open‑source automation framework, explains its key features, shows how to install it, configure the main settings and inventory, and demonstrates basic command‑line operations such as running modules and copying files across servers.
This guide walks you through installing Ansible on a RHEL 8 control node, configuring SSH key‑based authentication, setting up inventory and configuration files, and verifying password‑less access across multiple managed hosts, providing detailed commands, code snippets, and diagrams for a complete deployment workflow.
This comprehensive guide introduces Ansible, covering its core concepts, features, installation, inventory setup, ad‑hoc commands, module usage, playbook creation, handlers, and role-based organization to enable efficient, agent‑less automation across diverse Linux and network environments.
Infrastructure as Code (IaC) streamlines DevOps by automating provisioning, ensuring reproducible and consistent environments, enabling version‑controlled configurations, and supporting fast feedback through testing, while the article outlines its core benefits, key principles, goals, and provides practical Ansible and Testinfra examples.
This article explains how Infrastructure as Code (IaC) transforms cloud-native operations by using open‑source tools like Ansible and Terraform to achieve consistent, versioned, and automated provisioning of resources, illustrated with real‑world Alibaba Cloud examples and best‑practice recommendations.
This guide demonstrates how to write parameterized Ansible playbooks for MariaDB installation and configure Jenkins pipelines to execute those playbooks, securely passing credentials and extra variables to achieve fully automated, repeatable database deployments.
This guide explains what an Ansible playbook is, its YAML syntax, how to run tasks on multiple hosts, limit execution with --limit, use inventory files, define variables via extra‑vars, vars, vars_files, host_vars and group_vars, work with facts, register results, apply when conditions, delegate tasks, pause execution, prompt for input, tag tasks, and structure plays with blocks, rescue and always sections.
This comprehensive guide introduces Ansible's core concepts, architecture, and key features, then walks through installation, inventory configuration, command usage, module options, playbook creation, handlers, and role-based organization, providing practical examples and code snippets for effective automation across Linux and mixed environments.
This comprehensive tutorial walks you through Ansible fundamentals, installation, core modules, inventory management, playbook creation, advanced features like handlers, tags, variables, templates, and role-based architecture, providing step‑by‑step examples and code snippets to help you automate server configuration, deployment, and management efficiently.
The article examines the critical challenges of operational security in internet companies, proposes a “nuclear button” permission‑minimization framework, and outlines practical automation solutions such as bastion hosts, Ansible task control, and backup management to balance safety, cost, and efficiency.
This article walks you through building an OpenStack Stein cloud on a single host using Kolla, covering environment preparation, Docker and Ansible setup, configuration files, password generation, deployment commands, and final login verification, all with detailed code snippets and images.
This comprehensive tutorial walks you through Ansible fundamentals, architecture, key features, installation, inventory setup, and detailed usage of modules, playbooks, variables, templates, handlers, tags, loops, roles, and conditionals, providing step‑by‑step examples and practical tips for automating server configuration and management.
This article introduces Ansible as a model‑driven configuration manager, explains its core architecture and workflow, and details the seven primary commands—including ansible, ansible‑doc, ansible‑galaxy, ansible‑lint, ansible‑playbook, ansible‑pull, and ansible‑vault—providing usage examples and practical insights for effective automation.
This article details a three‑stage evolution of environment deployment—from manual installation to VM image restoration and finally to automatic registration with command issuance—showing how FRP tunneling, Docker containers, Ansible automation, and a custom deploy tool dramatically reduce deployment effort and eliminate the need for dedicated ops staff.
This article explains how to use Ansible to automate Huawei CloudEngine data‑center switches, covering integration methods, module overviews, practical use cases, preparation steps, playbook creation, and execution details for efficient network operations.
This article details how a single engineer created Listen Notes, a podcast search engine and API, by leveraging standard web technologies, AWS infrastructure, Django backend, React frontend, Ansible-driven DevOps, and a suite of monitoring and productivity tools, proving that a solo effort can launch a robust internet product.
In this interview, GanZhou Bank's DBA leader Ye Guangfang shares how his team created a unified PaaS platform, integrated CMDB and SaaS tools, and leveraged DevOps practices to automate resource delivery, self‑service, and disaster recovery, dramatically improving efficiency and reliability for a mid‑size bank.
This guide walks through setting up password‑less SSH, downloading a specific Kubespray tag, customizing image repositories, configuring Docker mirrors, adjusting DNS and network plugins, and finally running Ansible playbooks to provision a HA Kubernetes 1.12.5 cluster.
This comprehensive tutorial walks you through Ansible fundamentals, architecture, installation, core modules, playbook structure, variables, templates, handlers, tags, loops, and role‑based organization, providing practical examples and command‑line snippets to automate tasks across multiple Linux hosts efficiently.
This article describes a three-stage automated deployment strategy—traditional installation, VM image restoration, and automatic discovery with command issuance—leveraging FRP for internal network tunneling, Ansible for batch control, and Docker for rapid containerized deployment, significantly reducing operational effort and enabling a DevOps workflow.
This comprehensive tutorial walks you through Ansible fundamentals, installation, core modules, playbook structure, variables, templates, handlers, roles, and dozens of practical examples, enabling you to automate Linux server tasks such as package installation, service management, file distribution, and configuration templating with confidence.
This guide details how to prepare two RHEL 7.4 nodes, configure a local Yum repository and HTTP server, set up password‑less SSH, adjust SELinux and iptables, distribute configuration files with Ansible, install Docker and a private registry, and finally deploy an OpenShift 3.11 cluster using the openshift‑ansible playbooks.
This guide shows how to use Ansible to automate the mass installation and configuration of Zabbix‑agent on both Linux and Windows hosts, covering key‑based SSH authentication, playbook creation, service management, and Zabbix auto‑discovery setup.
This guide details the preparation, configuration, and deployment steps for setting up an OpenShift 3.11 cluster on three CentOS 7.6 virtual machines, covering host mapping, SSH key setup, OS updates, image loading, Ansible playbooks, and troubleshooting common issues.
This guide walks through setting up a two‑node Linux environment, installing Ansible, configuring its inventory and SSH keys, and demonstrates common Ansible commands for managing hosts, checking connectivity, and executing remote tasks.
This tutorial explains how to write Ansible Playbooks in YAML to automate complex tasks such as batch installing MySQL on remote servers and creating scheduled cron jobs, including code examples, parameter explanations, execution commands, and result verification.
This comprehensive tutorial walks you through Ansible fundamentals, including its architecture, installation, core modules, playbook structure, variables, templates, handlers, roles, and advanced features such as conditional execution, loops, and tagging, providing step‑by‑step examples and practical demonstrations for effective automation.
This guide walks through preparing three CentOS 7.6 VMs as combined master‑node hosts, configuring password‑less SSH, updating the OS, installing Ansible, importing required Docker images, setting up the Ansible inventory, deploying the OpenShift 3.11 cluster, creating an admin account, and troubleshooting common issues.
This article shares a small team’s step‑by‑step journey from basic monitoring to fully automated CI/CD pipelines, detailing why Prometheus was chosen, how Ansible and GitLab integrate with Jenkins, and tips for configuration versioning, alerting, and scaling the setup.
This article introduces Infrastructure-as-Code, explains how it transforms IT infrastructure management, and reviews seven major IaC platforms—AWS CloudFormation, Azure Resource Manager, Google Cloud Deployment Manager, Terraform, Chef, Ansible, and Puppet—highlighting their features, usage patterns, and reference documentation.
This article explains how UCloud integrates Ansible with GlobalSSH to streamline overseas multi‑data‑center deployments, presents step‑by‑step Playbook examples, and shows performance tests that demonstrate up to a 57% speed boost for both Playbook and Ad‑hoc operations.
This article details the step‑by‑step process of modernizing a large‑scale Hadoop deployment—identifying legacy pain points, evaluating three migration strategies, selecting an in‑place upgrade using Ambari‑managed HDP, and automating the entire workflow with Ansible to minimize downtime and operational risk.
This talk shares how a Shanghai‑based exchange adopted Ansible for configuration management, detailing the architecture, learning path, Linux and Windows project practices, migration from legacy tools, and the benefits of standardization and automation for modern operations.
This article outlines the evolution from manual MySQL DBA tasks to a fully automated, platform‑based solution at China Mobile’s "Mobile Cloud", detailing standardization, tooling, Ansible‑driven deployment, platform architecture, and key features such as backup, inspection, user management, and SQL review.
This article walks through building an automated database monitoring system using Zabbix and Ansible, covering Zabbix core automation features (LLD, API, trapper), standardizing monitoring conventions, deploying with Ansible, and implementing a Python‑based DBA_Monitor project for Oracle, MySQL, Redis, and MongoDB.
This article compares popular automation‑ops tools—Puppet, Ansible, and Foreman—offering practical guidance on when to use each, how to leverage Ansible’s strengths, and how to work with Puppet’s fact mechanism for dynamic configuration and data collection.
This extensive tutorial walks you through Ansible fundamentals, installation, architecture, key modules, and advanced features such as playbooks, variables, templates, roles, handlers, tags, loops, and conditional execution, providing step‑by‑step examples that demonstrate how to automate configuration, deployment, and management across multiple Linux hosts.
This article introduces Docker as a container engine, explains continuous integration and continuous deployment practices, and surveys major PaaS solutions—including OpenShift, Cloud Foundry, Heroku—as well as automation tools like Ansible and Cloudify, highlighting their roles in modern cloud computing.
This article outlines the motivations, design principles, system architecture, and key tools—including Cobbler, Ignite‑UX, WSUS, and Ansible—behind a bank’s automated operations platform, and details Ansible’s features, capabilities across Linux, HPUX, Windows and OpenStack, and its practical application scenarios such as batch changes, software installation, and environment delivery.
This guide introduces the most frequently used Ansible modules—including ping, setup, file, copy, service, cron, yum, user, group, synchronize, mount, and get_url—explaining their purpose, key options, and providing concrete command‑line examples to help you automate system tasks efficiently.
This article walks through a small team’s step‑by‑step journey to low‑cost automated operations, covering monitoring with Prometheus, configuration versioning via Ansible, CI/CD pipelines in Jenkins, and scalable script generation using Cookiecutter.
This guide walks small teams through step‑by‑step implementation of low‑cost automated operations, covering basic monitoring with Prometheus, configuration versioning via Ansible, CI/CD pipelines using Jenkins, and scaling practices, enabling gradual evolution toward enterprise‑grade DevOps architectures.
This guide explains how to install Ansible via yum or pip, outlines its directory layout, describes host inventory setup, details SSH key configuration for password‑less access, and introduces common modules such as ping for basic connectivity testing.
This article explains the challenges of lightweight private‑cloud deployment, classifies distributed‑system types, and presents a practical solution that combines a standard OS layer, Docker containerization, and Ansible automation, illustrated with a real‑world RabbitMQ cluster example and supporting GitHub resources.
This article presents a comprehensive checklist of personal‑level DevOps tools—including JDK, Git, Docker, Maven, Jenkins, Ansible, ELK, and Trello—providing download links, basic usage commands, and verification steps so engineers can install, configure, and validate each component on Windows, macOS, or Linux.
