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• Using immutable secrets can make Kubernetes API more reliable and reduce pressure on API servers
• Priority and fairness are heavily worked on to increase Kubernetes reliability
• Cluster loader two is a tool used for scalability testing in Kubernetes
• Cubemark is a simulation of the cluster used for scalability testing instead of running 5000 nodes
• Whole nodes and hollow nodes are used in Cubemark to simulate regular nodes without actually running pods
• Hollow cube proxy is a part of Kubernetes that puts pressure on the API server

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• Modern computing systems have evolved beyond human ability to mentally model their behavior, leading to increased outages and incidents.
• Software complexity only increases and cannot be decreased, making it challenging for operators to manage.
• Chaos engineering is a proactive approach to fixing issues and navigating inherent complexity.
• Curviz is an open-source tool for Kubernetes security testing, targeting low-hanging fruit such as CIS benchmarks and network configurations.
• Experiments can be run to test configurations and validate changes before they cause issues in production.

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• Infrastructure used for implementing cloud native development is critical and needs to be treated as such
• Internal developer platforms need continuous work and adoption of new features
• Understanding and proper use of cloud native patterns is important
• Developers need to prioritize the tools and education around cloud native development

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• Troubleshooting complex systems can be challenging, especially when dealing with multiple data sources and queries
• The presenter introduces a tool that automates correlation of alerts and provides useful links to relevant data sources
• The tool uses exemplars to trace the root cause of alerts and filter out relevant data
• The tool is experimental and requires the latest releases of several projects
• The presenter provides an anecdote of using the tool to troubleshoot a performance issue in a request

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• Use infrastructure as code and version control from early on in the project
• Expect to iterate and plan around limitations
• Don't blindly copy solutions from previous providers, look for possible improvements
• Load test applications to discover issues before customers do
• Be aware of quotas when scaling up nodes

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• Contributing to open source projects can be more than just coding, such as contributing to documentation or sharing knowledge with the community
• Continuously learning and staying up to date with new technologies is crucial in the field of site reliability engineering
• Joining conferences and engaging in internships can provide opportunities for learning and discovering new things

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• Deutsche Telekom faced challenges in implementing Kubernetes at scale and speed in a complex on-prem environment on bare metal.
• Legacy network and network legacy were some of their biggest enemies.
• They reimagined and implemented a network fabric for on-prem bare metal Kubernetes cloud that supports their internal Cluster-as-a-Service offering.
• Their cloud is hosting clusters where some of their most demanding applications like 5G core are running.
• They are building an internal GitHub Kubernetes cluster-as-a-service platform almost exclusively using open source components.
• They want to reliably build Kubernetes clusters with well-defined APIs for their customers and integrate network functions into the platform.
• They work upstream first and want to work with the community to build and contribute back.
• They use BGP and IP fabrics to manage network traffic flow.

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• Cloud native technologies are being pushed into physically extreme environments such as space, offshore oil rigs, and vehicles through projects like kubej and cube edge.
• The introduction of the Volcano project has allowed for the integration of sophisticated scheduling algorithms for machine learning training into cloud native environments.
• The KRM project is focused on cross-cluster, cross-cloud scheduling to create a single pool of resources across different environments.
• The Cloud Native Elite Club is onboarding new end users into the community and focusing on increasing diversity, particularly for women in technology.