Lots of new tools this week, along with several posts on Observability, data center monitoring and SLOs. Quite a classic operations feel this issue.
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A solid argument for a more specific definition of observability, and why the definition matters to solving the problems at hand.
A post on data-center scope monitoring, including the evolution from SNMP-based systems to streaming telemetry.
A post on the concept of zero trust supply chain security, with a full worked example using cosign and sigstore.
A quick introduction to SLOs and SLIs and why you should care about them. Nice quick tips as well on where to start out.
A post filled with hard one observations and recommendations for improving the operability of a legacy application.
If you’re working with Kubernetes you’re likely to be familiar with the kubectl command line tool. kubectl supports a plugin mechanism, and there are quite a few handy plugins for administrators covered in this post.
Connaisseur is a Kubernetes admission controller that integrates container image signature verification and trust pinning into a cluster. Under the hood it supports Notary V1 and Sigstore for signing.
Damon is a terminal user interface for Nomad. It provides functionality to observe and interact with Nomad resources such as Jobs, Deployments, or Allocations.
Automated Cloud Advisor is a tool for facilitating cost optimization in AWS, by collecting data for resources that are under utilized.
Tremors is an event processing system for unstructured data with rich support for structural pattern-matching, filtering and transformation with features like aggregation, rollups, an ETL language, and a built-in query language.
A new version of the Puppet Development Kit is in the works, providing a new set of tools for Puppet developers, starting out with Puppet Content Templates.