install

Additional install commands

macOS

Homebrewverified · 100%

brew install chart-testing

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#chart-testing

nixpkgs package indexes · pkgs/by-name/ch/chart-testing/package.nix · source: api.github.com

openSUSE zypperverified · 92%

sudo zypper install chart-testing

openSUSE Tumbleweed package metadata · chart-testing · source: download.opensuse.org

Arch Linux pacmanverified · 92%

sudo pacman -S ct

Arch Linux sync databases · ct · source: geo.mirror.pkgbuild.com

overview

Package summary

Testing and linting Helm charts

Project links

Commands and aliases

ct

history

Project history and usage

Chart Testing is the Helm project CLI, `ct`, for linting and testing Helm charts, especially in pull-request and CI workflows where changed charts need to be detected and validated.

Project history

The Helm organization created the chart-testing repository in November 2017. Its README notes that v2.0.0 refactored the tool from a bash library to Go while keeping v1 parity, and GitHub release metadata shows v2.0.0 published in November 2018 and the current v3.14.0 release in October 2025.

Adoption history

Chart Testing spread with Helm chart repository CI. The README recommends the Quay Docker image because it bundles Helm, Git, yamllint, Yamale, and kubectl; it also documents binary releases and Homebrew installation, while the input facts list Homebrew, Nix, pacman, and zypper packaging.

How it is used

`ct` is used to list changed charts, lint charts, install charts, and run combined lint-and-install checks. Configuration is supplied by CLI flags, `CT_` environment variables, or config files, and default config lookup includes the current directory, `$HOME/.ct`, and `/etc/ct`.

Why package nerds care

Chart Testing is package infrastructure for packages-that-are-YAML: it gives Helm chart maintainers repeatable CI checks around chart metadata, dependency linting, schema validation, Kubernetes installation, and change detection. For chart repositories, it fills the role that language package ecosystems often get from their native test and lint commands.

Timeline

2017-11: Helm chart-testing repository created.
2018-11: v2.0.0 released after the refactor from bash library to Go.
2025-10: Latest upstream GitHub release metadata lists v3.14.0.

Related projects

Helm is the chart ecosystem that `ct` validates.
chart-releaser is a sibling Helm tool for publishing charts after testing.
yamllint, Yamale, kubectl, Git, and Helm are documented prerequisites in the official README.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 1 runtime dependencies.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: ./ct.yaml~/.ct/ct.yaml/etc/ct/ct.yaml

executables

Installed executables

Command	Kind	Exposure	Note
`ct`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version3.14.0

manager updated

local dataok

upstreamnot checked

latest detectednot detected

https://github.com/helm/chart-testing

infoNo package-manager update timestamp was available.low confidence
infoNo cached GitHub release or tag data was available.https://github.com/helm/chart-testingnone confidence

install metadata

Package metadata

Package key	brew:chart-testing
Version	3.14.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/chart-testing
Homepage	https://github.com/helm/chart-testing
Repository	https://github.com/helm/chart-testing
Upstream docs	https://github.com/helm/chart-testing#readme
License	Apache-2.0
Source archive	https://github.com/helm/chart-testing.git
Dependencies	yamale
Build dependencies	go
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	chart-testing
Version Scheme	0
Revision	0
Head Version	HEAD
Conflicts With	coreos-ct
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

chart-testing

nix profile install nixpkgs#chart-testing

normalized package name match
Matched by: Chart Testing

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ch/chart-testing/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

zypper95%

chart-testing 3.14.0-1.4

CLI tool for linting and testing Helm charts

https://github.com/helm/chart-testing

sudo zypper install chart-testing

License: Apache-2.0
Category: Development/Languages/Other
Architecture: x86_64
Source Package: chart-testing
5 dependencies
1 provides
normalized package name match
Matched by: Chart Testing

openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: chart-testing from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst

pacman92%

ct 0.9.4-2

config transpiler for Flatcar Container Linux

https://github.com/flatcar/container-linux-config-transpiler

sudo pacman -S ct

License: Apache
Architecture: x86_64
1 dependencies
installed executable or alias match
Matched by: Ct

Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: ct from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/chart-testing.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated configuration and credential file locations
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install chart-testing with Homebrew, Nix, zypper, pacman