# Install kbld with Homebrew, Nix Tool for building and pushing container images in development workflows. Version 0.49.1 via Homebrew; verified 2026-06-17. ## Install ```sh sudo av install brew:kbld ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install kbld ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#kbld ``` Evidence: nixpkgs package indexes: pkgs/by-name/kb/kbld/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:kbld - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.49.1 - **Source summary:** Tool for building and pushing container images in development workflows - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-06-17T14:42:48Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - kbld (cli) - kbld (alias) ## Build dependencies - go ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.49.1 - Package-manager updated: 2026-06-17 - Local data: ok - Upstream repository: https://github.com/carvel-dev/kbld - Upstream latest detected: v0.49.1 (current) ## Project history and usage kbld is a Carvel CLI for Kubernetes and YAML workflows that builds, pushes, resolves, locks, packages, and relocates container image references. ### Project history The kbld repository began in April 2019. Its README and Carvel site describe a tool that delegates image building to mature tools such as Docker and Buildpacks pack, then rewrites YAML configuration to immutable digest references. kbld grew as part of the k14s/Carvel family rather than as a standalone monolith. Carvel documentation presents ytt, kbld, and kapp as composable tools: ytt structures and overlays YAML, kbld handles images, and kapp deploys and diffs Kubernetes resources. ### Adoption history Carvel's public materials describe the suite as born from frustration with monolithic Kubernetes deployment tools and built around Unix-style composition. kbld's adoption follows that pattern: it appears in Homebrew, Nix, and Carvel install flows as one small command in a larger Kubernetes delivery toolchain. ### How it is used Typical kbld usage pipes or reads YAML, finds image references, builds or resolves them, and emits YAML with digest-pinned images. Its docs also cover lock files, registry pushes, packaging images into tarballs, and relocation between registries. ### Why package nerds care kbld is package-nerd interesting because it makes image immutability a CLI transformation step. Instead of hiding build metadata in a platform service, it keeps the artifact graph visible in YAML and lock files that can be piped into other tools. ### Timeline - 2019-04-19: Repository initialized - 2019: k14s tools including kbld were released as composable Kubernetes workflow tools - 2020-08: k14s was rebranded as Carvel - 2022-10: VMware announced Carvel's move into the CNCF Sandbox - 2026-06-17: v0.49.1 release appeared in the GitHub release list ### Related projects - kbld is closely related to Carvel ytt, kapp, imgpkg, vendir, kapp-controller, Docker, Buildpacks pack, Kubernetes manifests, Helm, and kustomize. ### Sources - - - - - - - - ## Security Notes infrastructure mutation or orchestration signal. - **Geiger risk:** orange / medium - infrastructure mutation or orchestration signal ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** kbld - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - kbld: normalized package name match | nixpkgs package indexes: pkgs/by-name/kb/kbld/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Related links - [Cloud CLI packages](https://www.automicvault.com/pkg/cloud-clis/) - Belongs to a cloud or infrastructure command family. - [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [go](https://www.automicvault.com/pkg/brew/go/) - Build dependency declared by Homebrew. - [ko](https://www.automicvault.com/pkg/brew/ko/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, kubernetes. - [skaffold](https://www.automicvault.com/pkg/brew/skaffold/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, devops, kubernetes. - [colima](https://www.automicvault.com/pkg/brew/colima/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, kubernetes. - [container-canary](https://www.automicvault.com/pkg/brew/container-canary/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, kubernetes. - [containerd](https://www.automicvault.com/pkg/brew/containerd/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, kubernetes. - [dcp](https://www.automicvault.com/pkg/brew/dcp/) - Shares av.db curated category or tags: cli, cloud-infrastructure, containers, kubernetes. - [devspace](https://www.automicvault.com/pkg/brew/devspace/) - Shares av.db curated category or tags: cli, cloud-infrastructure, devops, kubernetes. - [havener](https://www.automicvault.com/pkg/brew/havener/) - Shares av.db curated category or tags: cli, cloud-infrastructure, devops, kubernetes. - [source-to-image](https://www.automicvault.com/pkg/brew/source-to-image/) - Both packages work with overlapping file formats or content types. Shared terms: build, building, cli, cloud, cloud-infrastructure. ## Combined YAML source View the package source record on GitHub. [combined/kbld.yml](https://github.com/automic-vault/db/blob/main/combined/kbld.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph