yxxhero e703b15075 docs: restructure documentation and improve newcomer experience (#2573)
* feat: add --write-output flag to helmfile fetch for air-gapped environments

Add --write-output flag to helmfile fetch that outputs a modified
helmfile.yaml with chart references updated to point to downloaded
local chart paths. Combined with --output-dir, this enables preparing
all charts for deployment in air-gapped environments.

Usage:
  helmfile fetch --output-dir ./charts --write-output > helmfile-airgapped.yaml

Fixes #2571

Signed-off-by: yxxhero <yxxhero@users.noreply.github.com>
Signed-off-by: yxxhero <aiopsclub@163.com>

* docs: restructure documentation and improve newcomer experience

Split the monolithic index.md (1990 lines) into focused topic pages,
update mkdocs.yml navigation, and add missing documentation for
undocumented code features.

Structure changes:
- Extract configuration.md (helmfile.yaml reference)
- Extract cli.md (CLI commands and flags)
- Extract templating.md (template syntax and env vars)
- Extract environments.md (environment configuration)
- Extract releases.md (DAG, needs, selectors)
- Extract hooks.md (lifecycle hooks)
- Extract integrations.md (ArgoCD, Azure ACR, OCI)
- Slim index.md to ~270 line landing page with step-by-step tutorial

Newcomer improvements:
- Add 5-step Getting Started tutorial with explanations
- Reorganize nav: Getting Started now shows core learning path
  (Writing Helmfile → Values → Environments → Releases)
- Add Quick Reference table to configuration.md
- Simplify writing-helmfile.md title

Code-vs-docs gap fixes:
- Document 23 undocumented release fields (valuesTemplate,
  setTemplate, forceNamespace, adopt, trackMode, etc.)
- Document 6 undocumented helmDefaults fields (enableDNS,
  forceConflicts, skipRefresh, takeOwnership, etc.)
- Document print-env command and missing CLI flags
- Document kubectlApply hook field
- Document environment defaults field and merge order
- Document kubedogQPS/kubedogBurst advanced settings
- Document template partials (_*.tpl) auto-loading

Cleanup:
- Fix Docker image version from v0.156.0 to v1.1.0
- Fix heading nesting in advanced-features.md
- Update experimental-features.md with current features
- Fix broken cross-references and anchor links

Signed-off-by: yxxhero <aiopsclub@163.com>

* Revert changes to pkg/app from docs/restructure-and-improve branch

Signed-off-by: yxxhero <aiopsclub@163.com>

* docs: add create subcommand to README and CLI reference

Signed-off-by: yxxhero <aiopsclub@163.com>

---------

Signed-off-by: yxxhero <yxxhero@users.noreply.github.com>
Signed-off-by: yxxhero <aiopsclub@163.com>
2026-05-03 19:33:33 +08:00
…
…
2026-03-05 09:50:08 +08:00
2026-02-20 15:27:21 +08:00
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Helmfile

Tests Container Image Repository on GHCR Go Report Card Slack Community #helmfile Documentation Gurubase zread

Deploy Kubernetes Helm Charts

English | 简体中文

About

Helmfile is a declarative spec for deploying helm charts. It lets you...

  • Keep a directory of chart value files and maintain changes in version control.
  • Apply CI/CD to configuration changes.
  • Periodically sync to avoid skew in environments.

To avoid upgrades for each iteration of helm, the helmfile executable delegates to helm - as a result, the following must be installed

Highlights

Declarative: Write, version-control, apply the desired state file for visibility and reproducibility.

Modules: Modularize common patterns of your infrastructure, distribute it via Git, S3, etc. to be reused across the entire company (See #648)

Versatility: Manage your cluster consisting of charts, kustomizations, and directories of Kubernetes resources, turning everything to Helm releases (See #673)

Patch: JSON/Strategic-Merge Patch Kubernetes resources before helm-installing, without forking upstream charts (See #673)

Status

May 2025 Update

  • Helmfile v1.0 and v1.1 has been released. We recommend upgrading directly to v1.1 if you are still using v0.x.
  • If you haven't already upgraded, please go over this v1 proposal here to see a small list of breaking changes.

Installation

1: Binary Installation

download one of releases

2: Package Manager

  • Archlinux: install via pacman -S helmfile
  • openSUSE: install via zypper in helmfile assuming you are on Tumbleweed; if you are on Leap you must add the kubic repo for your distribution version once before that command, e.g. zypper ar https://download.opensuse.org/repositories/devel:/kubic/openSUSE_Leap_\$releasever kubic
  • Windows (using scoop): scoop install helmfile
  • macOS (using homebrew): brew install helmfile
  • Linux/macOS/Windows (using mise): mise use -g helmfile@latest

3: Container

For more details, see run as a container

Make sure to run helmfile init once after installation. Helmfile uses the helm-diff plugin.

4: Build from source

requirements: Go

go install github.com/helmfile/helmfile@latest

Getting Started

Let's start with a simple helmfile and gradually improve it to fit your use-case!

Generate a project scaffold with best-practice directory structure:

helmfile create my-project && cd my-project

Or create a helmfile.yaml manually. Suppose the helmfile.yaml representing the desired state of your helm releases looks like:

repositories:
- name: prometheus-community
  url: https://prometheus-community.github.io/helm-charts

releases:
- name: prom-norbac-ubuntu
  namespace: prometheus
  chart: prometheus-community/prometheus
  set:
  - name: rbac.create
    value: false

Sync your Kubernetes cluster state to the desired one by running:

helmfile apply

Congratulations! You now have your first Prometheus deployment running inside your cluster.

Iterate on the helmfile.yaml by referencing:

More complex examples

See: multi-env-helmfile

Docs

Please read complete documentation

Contributing

Welcome to contribute together to make helmfile better: contributing doc

Attribution

We use:

  • semtag for automated semver tagging. I greatly appreciate the author(pnikosis)'s effort on creating it and their kindness to share it!

Users

Helmfile has been used by many users in production:

For more users, please see: Users

License

MIT

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