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Merry Christmas to those celebrating, and thanks to everyone on-call over this busy period for lots of services. Lots of content this week, on deployment decisions, SLOs, SBOMs, serverless management and more.

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A post on Sysadvent, considering systems safety and deployment decisions under stressful circumstances.

A post on making SLOs and SLIs more discoverable and managing them in code, using a custom DSL. Not everyone will have the time to build such custom tooling but it’s an interesting insight to SLO management at scale.

This was the thing that interested me in Kubernetes to begin with, the argument for a standard API.

A look at working with Terraform and Serverless Framework together to manage AWS Lambda applications in a declarative manner.

A post on what to look for when exploring software for managing SBOMs.

An interesting post on the complexity of caching and the potential for cache poisoning attacks at scale.

Some observations and recommendations about the secure usage of third party APT repositories and risks with signing keys having broader scope than probably expected.


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PolicyGlass allows for combining multiple AWS IAM policies/statements into their ‘effective permissions’, deduplicating permissions, and eliminating denied permissions along the way.

Copybara looks an interesting source code management tool, useful for importing sections of code from a confidential repository to a public repository, importing code from a public repository to a confidential repository, importing a change from a non-authoritative repository into the authoritative repository and more.

A handy wrapper around go’s toolchain, to make it easier to install and manage go binaries on your path.

Colima provides a simple way of provisioning a container runtime (either Docker or Containerd) on macOS.