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Container image tools for Kubernetes

The Kubernetes ecosystem relies on various tools for building, managing, and inspecting container images (Open Container Initiative images). These tools often facilitate operations within containerized environments or adhere to OCI standards without requiring a full Docker daemon.

Image Building

  • Buildah: A tool for building OCI images. It functions similarly to docker build but allows for building images without root privileges or a running Docker daemon.^[400-devops__06-Kubernetes__k8s.md]
  • Kaniko: A utility designed to build container images from a Dockerfile directly inside a Kubernetes cluster.^[400-devops__06-Kubernetes__k8s.md]

Image Management and Inspection

  • Skopeo: A command-line utility for performing various operations on OCI images and containers. It is commonly used to copy images between different types of storage (e.g., copying from a Docker daemon to an OCI directory) and can bypass TLS verification when required by specific registries.^[400-devops__06-Kubernetes__k8s.md]
  • Dive: A tool used to analyze and explore the layers of a container image, helping users understand the contents and structure of their Docker images.^[400-devops__06-Kubernetes__k8s.md]

Sources

^[400-devops__06-Kubernetes__k8s.md]