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How LLMs can supercharge your DevOps automation

Posted by | April 22, 2024

How LLMs can supercharge your DevOps automation

Context

It would be super weird if in 5 years from now, people will be still manually configuring cloud infrastructures, setting up monitoring alerts or reading thousands of log lines to troubleshoot incidents. AI will be at the center of most DevOps workflows. This is the main thesis behind HeyCloud and something we believe strongly.

DevOps tasks can range from routine to extremely painful. The level of difficulty often depends on the specific environment, tools, and complexity of the infrastructure. Some tasks are commonly considered more painful or difficult due to their complexity, risk, and the potential for significant disruptions if not handled properly.

On the other hand, over the past 18 months or so, we have seen many examples of successfully applying LLMs to coding, including products such as Github Copilot and Cursor. These tools are becoming an indispensable part of a developer’s toolset.

However, these tools are specialised in writing and debugging code, and do not do much beyond that, although a large part of building software is the operations part. Once code is written and tested, there are all the steps of deployment, migration when needed, monitoring, incident management, change management etc

Main DevOps tasks and how LLMs can streamline your DevOps automation

In the following, we will review a few of the most painful DevOps tasks and how LLMs can assist with them:

Environment Configuration and Management:

Setting up and maintaining consistent environments across development, testing, and production can be extremely challenging. Ensuring that all dependencies, configurations, and settings are identical across these environments to avoid the dreaded “it works on my machine” syndrome can be a tedious and error-prone task.

There are many tools in the market to help you maintain a consistent setup across multiple environments. IaC tools, like Terraform and CloudFormation for example, allows you to configure and manage your infra with code, ensuring consistency and repeatability. However, even with these tools, setting up environments can involve complex decisions and troubleshooting.

Shortcomings:

  • Complexity in managing and synchronizing configurations across multiple environments.
  • Challenges in tracking changes and ensuring all team members have the latest, stable configurations.
  • Potential for human error in manual setup and updates.

How LLMs Can Help:

  • Real-time Troubleshooting and Support: LLMs can ingest, process large config files and provide on-the-spot troubleshooting advice for configuration issues and automate fixes using historical data and best practices.
  • Consistency Checks: An LLM can be tasked with regularly analyzing environment setups to ensure consistency across all stages of development, staging, and production, alerting when discrepancies are found. For example, when a drift is detected, LLMs can provide context-aware suggestions based on the type of drift. For instance, if a security setting is inadvertently disabled, the LLM can recognize the risk and suggest the best practice to re-enable it.
  • Documentation and Compliance: Automatically generate and update documentation based on current configurations and changes, ensuring compliance with regulatory standards.
DevOps automation using LLMs

Database Migrations:

Managing schema changes and data migrations across different environments, especially in production, can be risky. This involves making sure that changes are backward compatible, downtime is minimized, and data integrity is preserved.

Tools on the Market:

  • Liquibase: Automates and manages database schema changes.
  • Flyway: Focuses on simplicity and convention over configuration for version control of databases.
  • DBMaestro: Offers DevOps tools specifically for database automation.

Shortcomings:

  • Manual review often required to ensure changes won’t affect existing functionality.
  • Difficulty in testing migrations in environments that accurately reflect production.
  • Potential for downtime if migrations aren’t handled smoothly.

How LLMs Can Help:

  • Automation of Migration Scripts: LLMs can generate migration scripts from high-level descriptions of schema changes.
  • Risk Analysis: You can hook an LLM to your infra toolings and ingest real time data. This allows the LLM to contextually analyze migration scripts to predict and report potential risks or impacts on existing systems.

Incident Management and Troubleshooting:

Responding to and resolving production incidents can be stressful, especially if they occur in a high-availability environment. Identifying the root cause of an issue under time pressure and implementing a fix without causing further disruptions requires significant expertise and calm under pressure.

Tools on the Market:

  • PagerDuty: Incident response platform for IT departments.
  • OpsGenie: Manages alerts and on-call scheduling to ensure incidents are addressed promptly.
  • Splunk: Powerful tool for searching, monitoring, and analyzing machine-generated data through a Web-style interface.

Shortcomings:

  • High cognitive load to understand complex system interactions during incidents.
  • Dependency on timely and accurate alerts to minimize downtime.

How LLMs Can Help:

  • Root Cause Analysis: By processing logs and metrics, LLMs can quickly suggest probable causes of incidents. The main challenge here is the large volumes of log data compared to the small context size of most LLMs, which explains the need for advanced RAG (Retrieval Augmented Generation) architectures on top of LLMs. HeyCloud for example implements an advanced RAG architecture to process millions of log lines in real time, structure them in a compressed format and allows users to:
  • “chat” with this data in natural language.
  • extract timely insights without having to setup fixed rules and conditions.
How HeyCloud works
  • Automated Remediation: Once the symptoms and root cause of an incident are determined, LLMs can recommend scripts or actions to mitigate or resolve the incident, potentially integrating with automation tools to apply fixes. The latest LLMs like GPT4 are great at “tool use” via APIs.

Monitoring and Performance Tuning:

Setting up comprehensive monitoring to catch issues before they affect users can be complex. Analyzing logs, metrics, and traces to diagnose performance bottlenecks and other issues is also a highly specialized and often time-consuming task.

Tools on the Market:

  • New Relic: Provides real-time monitoring and detailed performance insights.
  • Datadog: Monitoring service for cloud-scale applications, providing visibility into servers, databases, tools.
  • Prometheus: Open-source monitoring solution that is particularly good at handling metrics.

Shortcomings:

  • Complexity in setting up and maintaining monitoring configurations.
  • Overload of alerts and data, making it difficult to pinpoint significant issues

How LLMs Can Help:

  • Automated Alerts Analysis: As mentioned before, LLMs can analyze alert trends to refine thresholds and reduce noise.
  • Log Data analysis: They can also process large amounts of logs to extract timely and useful insights for both: incident troubleshooting and performance optimization.
  • On-the-fly Dashboards: LLMs can translate ****natural language to tool specific DSLs, like Grafana or Splunk, and generate visualisations on the fly.
On-the-fly dashboarding using LLMs

Security Patching and Compliance:

Keeping all systems secure with regular updates and ensuring compliance with various security standards is critical but can be extremely challenging, especially in large, distributed architectures.

Tools on the Market:

  • Qualys: Provides cloud security, compliance, and related services.
  • Tenable: Cyber exposure platform to manage and measure cybersecurity risk.
  • CrowdStrike: Cybersecurity technology that provides endpoint security, threat intelligence, and cyberattack response services.

Shortcomings:

  • The complexity of managing patches across diverse systems and environments.
  • Ensuring all systems are continuously compliant with evolving security standards.

How LLMs Can Help:

  • Automated Patch Testing: Simulate the effects of security patches in virtual environments to anticipate issues.
  • Compliance Monitoring: Continuously scan configurations and compare them against compliance requirements, providing real-time reports and remediation suggestions.
  • Security Recommendations: Generate security best practices and patch management strategies customized to the specific architecture and detected vulnerabilities.

Change Management:

Managing and coordinating changes across multiple teams and ensuring that all stakeholders are on the same page can lead to logistical challenges. It also includes ensuring that all changes are reviewed, tested, and approved before being deployed.

Tools on the Market:

  • GitLab: Provides a web-based DevOps lifecycle tool that provides a Git repository manager providing wiki, issue-tracking, and CI/CD pipeline features.
  • ServiceNow: Offers IT service management software that manages changes through structured processes to minimize impact and reduce risk.
  • Jira: Popular project management tool used for tracking issues and organizing tasks within technical teams.

Shortcomings:

  • Coordination between multiple teams and tools can be cumbersome and error-prone.
  • Ensuring compliance and alignment with organizational policies during changes can be challenging.

How LLMs Can Help:

  • Automated Compliance Checks: Automatically check changes against compliance requirements and corporate policies.
  • Change Impact Analysis: Predict the impact of changes on various parts of the system and suggest optimal timings for minimal disruption.
  • Enhanced Communication: Facilitate clear and comprehensive communication between teams and stakeholders by summarizing updates and generating reports.

Conclusion

DevOps tasks involve a combination of technical skills, meticulous planning, and often a bit of firefighting. Automating as many of these processes as possible and investing in robust testing and monitoring can help reduce the pain associated of these tasks. In this blog post, we discussed how LLMs can speed up your DevOps workflows and enhance your overall platform-related productivity.