Blog | Lisandro Fernández Rocha

Blog

Writing on systems, culture, and the practice of making things work.

Pulling container images on a node that has no internet

A kubernetes worker on a default-deny segment cannot reach any upstream registry. All pulls go through a private OCI registry on the same segment, pre-populated from a control plane that can reach the outside. What it is, what each component does, and the four dead ends on the way.

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Infrasculture

Thoughts on what infrastructure accidentally reveals about teams. Infrasculture (/ˈɪn.frəˌskʌl.tʃər/) n. [Neologism. Portmanteau of Infra- (from Latin infra, ‘below, underneath’), Sculpture (from Latin sculpere, ‘to carve or shape’), and Culture (from Latin cultura, ‘cultivation, practice’)]. The s…

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