Checkmk Scripting for PostgreSQL WAL Monitoring

@SairaArifM

As a seasoned Linux Engineer with comprehensive proficiency across multiple Linux distributions (including Ubuntu, CentOS, Kali Linux, Debian, and Rocky Linux), I have the exact skillset you require for your project. With a deep-rooted understanding of PostgreSQL WAL/pg_wal and the complexities involved in the monitoring process, I am uniquely positioned to create a robust Bash script aligned with your Checkmk-specific needs. Throughout my career, I have excelled in translating intricate technical requirements into scalable and reliable solutions. Your project requires an autonomous proper detection of "pg_wal" directory without hardcoded paths, and ensuring symlink compatibility – a task that I have successfully accomplished in similar projects before. Furthermore, my comprehensive knowledge of Checkmk local checks and system monitoring means that I will deliver not just a production-ready Bash script for you, but also provide clear instructions on how to efficiently test it with check_mk_agent and confirm its visibility in Checkmk. Partnering with me guarantees that your project will be delivered on time and with utmost precision. Thank you for considering my services.

@toriquldev123

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam

@techplusintl

Hi there, ★★★ Full-Stack Development Expert ★★★ 8+ Years of Experience ★★★ I will complete this project by developing a Bash script that meets all the functional requirements for monitoring PostgreSQL WAL disk usage within Checkmk. The key steps are as follows: 1. Research and gather requirements to understand the Checkmk local checks and PostgreSQL WAL structure (4 hours) 2. Write the Bash script that detects the pg_wal directory dynamically and implements the required checks (8 hours) 3. Test the script thoroughly to ensure it runs reliably and outputs in the correct Checkmk format (4 hours) 4. Create documentation for the logic and testing instructions (2 hours) What I need from you: 1. Access to a PostgreSQL instance for testing 2. Information on the Checkmk version in use 3. Any specific organizational requirements for the script's deployment I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team

@techsty2014

Hello there, I can develop a robust Bash script for PostgreSQL WAL monitoring tailored to your Checkmk requirements. This script will dynamically detect the pg_wal directory, handle symlinks, and compute disk space needs by querying PostgreSQL for WAL segment data. It will output a single line in the Checkmk format, ensuring seamless integration with check_mk_agent. Key deliverables include: - Automatic pg_wal path detection - Calculation of peak WAL generation and required disk space - Disk space comparison for status output (OK/WARNING/CRITICAL) - Comprehensive testing guide for Checkmk service visibility Questions: • Do you have any specific preferences for how the service name should appear in Checkmk? • Would you like any custom logic for handling edge cases in disk space calculation? Looking forward to delivering a reliable solution that aligns with your system monitoring objectives. Thanks and best regards, Faizan

@emilesd617

Hi, I am a full-stack developer with 8 years of rich experience in software development, with a background in Linux-based monitoring and database systems. I am familiar with Linux, Bash scripting, PostgreSQL internals (WAL/pg_wal), Checkmk local checks, system monitoring, filesystem inspection, and writing reliable production-ready scripts. I'm an individual freelancer and can work on any time zone you want. For this project, I would create a clean Checkmk local check script that dynamically detects the pg_wal directory via PostgreSQL queries, resolves symlinks, calculates peak daily WAL generation and required disk space, and compares it against available filesystem space. The script will strictly follow Checkmk’s one-line output format, proper exit codes, and be fully testable via check_mk_agent with clear instructions. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.

@artemb35

Hi there, I understand that your main goal is to implement effective Checkmk scripting for monitoring PostgreSQL WAL to ensure optimal database performance and reliability. In my previous role, I successfully designed a custom monitoring solution for a PostgreSQL environment, which reduced WAL-related issues by 40% and improved system stability. Additionally, I developed automation scripts that streamlined database monitoring processes, resulting in a 25% increase in operational efficiency. To meet your requirements, I will create tailored Checkmk scripts that monitor PostgreSQL WAL activity in real-time, allowing for prompt alerts and proactive management. I will also ensure that the solution is scalable and integrates seamlessly with your existing infrastructure. I would be happy to discuss your needs and get started right away. Best regards, Artem

@habiba8730

Hi, I’m Mst Habiba Hasan, I am a Senior Full-Stack Developer with more than 10 years of experience. I can help you with: — Website development — Mobile app development — Web app development — Backend development — AI and Machine Learning development — Maintenance of existing projects — UX/UI design — Browser extensions — DevOps — Solution Architecture — Consulting — MVP development Technologies I've worked with include but are not limited to: • Python/ Django • ReactJS / React Native (including React Native Web) / Expo / Express / Redux / NextJS • Javascript / Typescript / Flow types • NodeJS / Angular / Vue.js • MongoDB / SQL (MySQL / MariaDB / PostgreSQL) / Redis • OAuth2 / Keycloak / Auth0 / Cognito • Kubernetes / Helm / Docker / Ansible / Terraform / Amplify / Firebase • AWS / Azure / GCP / on premises • RESTful / GraphQL / OpenTracing / AMQP (RabbitMQ) Contact me today to get started! I’m excited to collaborate and bring your vision to life. Best regards, Mst Habiba Hasan

@CodeAnchors

Greetings Indmyul, I have carefully reviewed your project regarding the creation of a production-ready Checkmk local check script for monitoring PostgreSQL WAL disk usage in Germany. With my extensive experience in Database Management, PostgreSQL, Linux, and a proven track record of delivering reliable, long-term results, I am confident in my ability to meet your requirements effectively. My proposed approach involves thoroughly understanding the requirements, planning the script structure, implementing the monitoring logic, and conducting rigorous testing/refinement to ensure seamless integration with Checkmk. You can view examples of my previous work in my Portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Before proceeding, could you please clarify your top priorities or specific goals for this project? I invite you to open a chat so we can collaborate on refining the scope together. Best regards, Muhammad Anas Khan

@YamestimationLLC

Hello there, I understand that you are in need of an experienced freelancer with expertise in Linux, PostgreSQL, and Checkmk to develop a production-ready Checkmk local check script for monitoring PostgreSQL WAL disk usage. Proposed Solution: I will create a Bash script that dynamically detects the PostgreSQL pg_wal directory, handles symlinks, calculates required disk space based on WAL segment size and usage, and compares it with available disk space to provide accurate monitoring results. Key Deliverables: - Final Bash script for monitoring PostgreSQL WAL disk usage - Explanation of the script logic - Testing instructions for check_mk_agent integration and visibility in Checkmk Portfolio & Skills: I bring extensive experience in Linux, Bash scripting, PostgreSQL, and system monitoring. I will ensure the script's reliability and adherence to Checkmk requirements for seamless integration. Call to Action: I'd love to connect for a quick chat to discuss your project in more detail. Best regards, Minhal

@YammTech110

Hello there, I understand that you are in need of an experienced Linux / PostgreSQL / Checkmk expert to develop a production-ready Checkmk local check script for monitoring PostgreSQL WAL (pg_wal) disk usage. Proposed Solution: I will create a Bash script that dynamically detects the PostgreSQL pg_wal directory, handles symlinks, calculates required disk space based on WAL usage, and compares it with available space to return the appropriate status (OK / WARNING / CRITICAL) following Checkmk requirements. Key Deliverables: - Final Bash script - Explanation of the logic - Testing instructions for check_mk_agent - Visibility in Checkmk after service discovery Portfolio & Skills: I bring expertise in Linux, Bash scripting, PostgreSQL (WAL/pg_wal), Checkmk local checks, and system monitoring to ensure the successful implementation of this project. I will share my portfolio with you in the DM. Call to Action: I’d love to connect for a quick chat to discuss your project in more detail. Best regards, Bilal

@bjorkb

I can immediately deploy my expertise to tackle your project requirements with precision and speed. Your need for a reliable Checkmk local check script monitoring PostgreSQL WAL disk usage aligns with my focus on delivering effective, high-quality, and timely solutions. My team ensures accurate detection, space calculation, and seamless Checkmk integration. We offer strong Linux, Bash, PostgreSQL, and system monitoring skills. I have extensive experience and have completed numerous projects on alternative platforms. is there anything you would like to discuss about your project that you haven't added in the job description? Regards, Bjork Bronkhorst

@milosm25

I can build this exactly as specified and keep it production-safe for Checkmk. I’ll write a clean Bash local check that runs reliably under check_mk_agent and outputs exactly one line in the proper local-check format with correct exit codes only. The script will dynamically detect PostgreSQL’s data directory using SHOW data_directory, resolve symlinks correctly, and derive the effective pg_wal path without hard-coding anything. To calculate WAL pressure, the script will analyze archived WAL data to determine the highest number of WAL segments generated in a single day and extract the corresponding date. It will query PostgreSQL for wal_segment_size, compute the required disk space using your 3-day multiplier, then detect the available free space on the filesystem hosting pg_wal. Required versus available space will be evaluated cleanly to return OK, WARNING, or CRITICAL. The output will include the peak WAL count, peak date, required disk space, available disk space, and resolved pg_wal path, all in a single Checkmk-compatible line with no stderr noise. The service will appear correctly after discovery when placed in /usr/lib/check_mk_agent/local/600. You’ll receive the final Bash script, a concise explanation of the logic, and clear instructions to test it via check_mk_agent and confirm visibility in Checkmk.

@bensonthomas93

I am having 10+ years of Linux administration experience with strong expertise in Checkmk and Nagios. Skilled in designing monitoring setups, creating custom checks, and writing Bash/Python automation scripts. Also, Checkmk advanced certified.

@valentingabrielz

Hi, I can help, I have maintained a distributed CMK deployment for a Fortune 500 company. I was also responsible for writing custom checks.

@pubududilshan94

✅✅✅✅✅ Only Perfection && Even 99.99% Isn’t Enough For Me. ✅✅✅✅✅ Hi, there, I Understand Exactly What You Want. I've reviewed the job description carefully. This is similar to my previous project and I can share it if needed. As an AI & Full-Stack Developer with an extensive 8+ years of experience, I bring a unique blend of skills across multiple areas. Among these areas, my expertise in Checkmk local checks and system monitoring makes me a perfect fit for your project. I have garnered immense experience in Linux, Bash scripting, and PostgreSQL – garnering the exact proficiencies mandated for your task at hand. Finally, my unique skill set extends beyond just developing the requisite script. With my profound knowledge and practical experience in cloud deployment (specifically on AWS), I will ensure that the check_mk_agent runs reliably without encountering any unexpected hurdles - thereby leading to a seamless integration of the developed solution with Checkmk. I am excited about the opportunity to create tangible value for your project and advance the efficiency and reliability of your PostgreSQL WAL monitoring system.

@garronwallace

I’m confident I’m the right person for this project, understanding your need for a modern, smooth, and automated Checkmk local check script that intuitively monitors PostgreSQL WAL disk usage without hardcoded paths. I offer strong skills in Linux, Bash scripting, PostgreSQL, and Checkmk monitoring, ensuring a responsive and optimized script that outputs a single line with correct exit codes and meets all your detailed requirements. I’m new to Freelancer, but I have strong real-world experience and have completed many successful projects outside the platform. Let’s talk through your goals — I’d love to help bring this to life. Regards, Garron Levi Wallace

@euriarte79

Hi, I’ve implemented Checkmk local check scripts for PostgreSQL WAL monitoring in production environments, and your requirements are clear and well defined. I’m a Senior Software Developer with 15+ years of experience, working daily with PostgreSQL, Linux, and Bash scripting. I fully understand the goal and implementation details. Technical approach: Detect pg_wal dynamically by querying PostgreSQL (SHOW data_directory;) and resolving symlinks (readlink -f), with no hardcoded paths. Parse WAL segment filenames to determine daily generation counts and identify the historical peak, including the corresponding date. Query PostgreSQL for the actual WAL segment size (SHOW wal_segment_size;). Calculate required space using your exact formula: required_space = highest_wal_per_day × wal_segment_size × 3. Check available free space on the filesystem containing pg_wal. Output exactly one line in standard Checkmk local check format with correct OK/WARN/CRIT return codes and performance data. Handle edge cases cleanly (PostgreSQL down, empty pg_wal, permissions, filesystem detection), with no stderr output. As I’m establishing my presence on Freelancer.com, I’m offering a very competitive fixed price for initial projects, without any compromise on production-quality delivery. Best regards,