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Kubernetes v1.37: Pod Certificates and Cluster Trust Bundles

Kubernetes brings a wealth of features that make it easy to run your production workloads securely and reliably. While aspects like scheduling, health checks and resource limits are probably at the front of your mind, one other important feature of Kubernetes is production identity — how your workload can authenticate to other systems in order to do its job. Up until now, the primary production identity mechanism built into Kubernetes has been service account JWTs (JSON Web Tokens). These are cryptographically-signed tokens, issued by the control plane of your cluster, that let anyone in the world understand who is calling when your workload uses them.

6 min readNews
Technology

Kubernetes v1.37: Storage Version Migration Enabled by Default

I am excited that storage version migration (SVM) has graduated to General Availability (GA) in Kubernetes v1.37! After a number of releases of work and testing, the built-in StorageVersionMigration API (storagemigration.k8s.io/v1) and control plane controller are now fully stable and enabled by default across all v1.37 Kubernetes clusters. The problem with stale storage versionsIn Kubernetes, stored API resources are written using a specific storage version (schema representation). The way Kubernetes interacts with object storage fundamentally requires mutation of a resource in order to ensure that the latest storage version is used for all resources. This creates problems when you want to change the storage version of a resource.

3 min readNews
Technology

Kubernetes v1.37: etcd RangeStream Cuts Memory Use on Large List Reads

I am excited to announce that etcd RangeStream is graduating to beta in Kubernetes v1.37. Paired with etcd v3.7, it reduces the memory the API server and etcd need to read a large collection, and makes peak usage more predictable. The cost of large readsThe API server serves most list and watch requests from its in-memory watch cache. Populating that cache requires reading a resource's full state from etcd, at startup and on every re-initialization. For a resource with many objects, or large ones, such as Pods, that read is expensive.

2 min readNews
Technology

AWS reimagines the getting started experience

AWS has reimagined the getting started experience with smart and sensible defaults to help developers get started fast so that they can focus on building. New customers can sign up and get started right away with $100 in Free Tier credits, managed project environments, and simplified team and resource permissions. If their workload evolves, customers can activate advanced features to access the full breadth and depth of AWS in one step, with no migration required.

1 min readNews
AWS reimagines the getting started experience