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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

2.4 KiB

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Built-in Objects

helmfile template built-in objects

Environment: The information about the environment. This is set by the --environment flag. It has several objects inside of it:
- Environment.Name: The name of the environment
- Environment.KubeContext: The kube context to be used by default for releases in the environment.
Values: Values passed into the environment.
StateValues: alias for Values.
Namespace: The namespace to be released into

release template built-in objects

it be used for the below two cases:

release definition

templates:
  default:
    chart: stable/{{`{{ .Release.Name }}`}}
    namespace: kube-system
    values:
    - config/{{`{{ .Release.Name }}`}}/values.yaml
    - config/{{`{{ .Release.Name }}`}}/{{`{{ .Environment.Name }}`}}.yaml
    secrets:
    - config/{{`{{ .Release.Name }}`}}/secrets.yaml
    - config/{{`{{ .Release.Name }}`}}/{{`{{ .Environment.Name }}`}}-secrets.yaml
releases:
- name: heapster
  version: 0.3.2
  inherit:
  - template: default
- name: kubernetes-dashboard
  version: 0.10.0
  inherit:
  - template: default

release values template

releases:
- name: some-release
  chart: my-chart
  values:
    # This is a template file can use the built-in objects
    - path/to/values.gotmpl

Release: This object describes the release itself. It has several objects inside of it:
- Release.Name: The release name
- Release.Namespace: The namespace to be released into
- Release.Labels: The labels to be applied to the release
- Release.Chart: The chart name of the release
- Release.KubeContext: The kube context to be used for the release
- Release.ChartVersion: The version of the current chart
Values: Values passed into the environment.
StateValues: alias for Values.
Environment: The information about the environment. This is set by the --environment flag. It has several objects inside of it:
- Environment.Name: The name of the environment
- Environment.KubeContext: The kube context to be used by default for releases in the environment.
Chart: The chart name for the release.
KubeContext: The kube context to be used for the release
Namespace: The namespace to be released into

The built-in values always begin with a capital letter. This is in keeping with Go's naming convention. When you define your own values and template variables, you are free to use a convention that suits your team.

2.4 KiB Raw Blame History

Built-in Objects

helmfile template built-in objects

release template built-in objects

2.4 KiB

Raw Blame History