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docs: restructure documentation and improve newcomer experience (#2573)

Browse Source 
* 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>
This commit is contained in:
yxxhero
2026-05-03 19:33:33 +08:00
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commit e703b15075
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# Configuration Reference
This page is a comprehensive reference for all options available in `helmfile.yaml`.
**If you're new to Helmfile**, start with the [Getting Started](index.md#getting-started) tutorial on the home page, then read [Writing Helmfile](writing-helmfile.md) for patterns. Come back here when you need to look up a specific field.
**CAUTION**: This documentation is for the development version of Helmfile. If you are looking for the documentation for any of releases, please switch to the corresponding release tag like [v0.143.4](https://github.com/helmfile/helmfile/tree/v0.143.4).
## Quick Reference
A `helmfile.yaml` has these top-level sections:
| Section | Purpose |
|---------|---------|
| `repositories` | Helm chart repositories to use |
| `releases` | The Helm releases to deploy (the core of helmfile) |
| `helmDefaults` | Default Helm options for all releases |
| `environments` | Environment-specific values (dev, staging, prod) |
| `helmfiles` | Include other helmfile.yaml files (nesting) |
| `bases` | Shared base files merged before this helmfile |
| `values` | Default values available in templates |
| `commonLabels` | Labels applied to all releases |
| `templates` | Reusable release templates |
| `hooks` | Global lifecycle hooks |
| `apiVersions` / `kubeVersion` | Kubernetes version capabilities |
## Full Reference
The default name for a helmfile is `helmfile.yaml`:
```yaml
# Chart repositories used from within this state file
#
# Use `helm-s3` and `helm-git` and whatever Helm Downloader plugins
# to use repositories other than the official repository or one backend by chartmuseum.
repositories:
# To use official "stable" charts a.k.a https://github.com/helm/charts/tree/master/stable
- name: stable
url: https://charts.helm.sh/stable
# To use official "incubator" charts a.k.a https://github.com/helm/charts/tree/master/incubator
- name: incubator
url: https://charts.helm.sh/incubator
# helm-git powered repository: You can treat any Git repository as a charts repository
- name: polaris
url: git+https://github.com/reactiveops/polaris@deploy/helm?ref=master
# Advanced configuration: You can setup basic or tls auth and optionally enable helm OCI integration
- name: roboll
url: roboll.io/charts
certFile: optional_client_cert
keyFile: optional_client_key
# username is retrieved from the environment with the format <registryNameUpperCase>_USERNAME for CI usage, here ROBOLL_USERNAME
username: optional_username
# password is retrieved from the environment with the format <registryNameUpperCase>_PASSWORD for CI usage, here ROBOLL_PASSWORD
password: optional_password
oci: true
passCredentials: true
verify: true
keyring: path/to/keyring.gpg
# Advanced configuration: You can use a ca bundle to use an https repo
# with a self-signed certificate
- name: insecure
url: https://charts.my-insecure-domain.com
caFile: optional_ca_crt
# Advanced configuration: You can skip the verification of TLS for an https repo
- name: skipTLS
url: https://ss.my-insecure-domain.com
skipTLSVerify: true
# Advanced configuration: Connect to a repo served over plain http
- name: plainHTTP
url: http://just.http.domain.com
plainHttp: true
# context: kube-context # this directive is deprecated, please consider using helmDefaults.kubeContext
# Path to alternative helm binary (--helm-binary)
# Supports both Helm 3.x and Helm 4.x
helmBinary: path/to/helm
# Path to alternative kustomize binary (--kustomize-binary)
kustomizeBinary: path/to/kustomize
# Path to alternative lock file. The default is <state file name>.lock, i.e for helmfile.yaml it's helmfile.lock.
lockFilePath: path/to/lock.file
# Default values to set for args along with dedicated keys that can be set by contributors, cli args take precedence over these.
# In other words, unset values results in no flags passed to helm.
# See the helm usage (helm SUBCOMMAND -h) for more info on default values when those flags aren't provided.
helmDefaults:
kubeContext: kube-context #dedicated default key for kube-context (--kube-context)
cleanupOnFail: false #dedicated default key for helm flag --cleanup-on-fail
# additional and global args passed to helm (default "")
args:
- "--set k=v"
diffArgs:
- "--suppress-secrets"
syncArgs:
- "--labels=app.kubernetes.io/managed-by=helmfile"
# verify the chart before upgrading (only works with packaged charts not directories) (default false)
verify: true
keyring: path/to/keyring.gpg
# --skip-schema-validation flag to helm 'install', 'upgrade' and 'lint' (default false)
skipSchemaValidation: false
# wait for k8s resources via --wait. (default false)
wait: true
# DEPRECATED: waitRetries is no longer supported as the --wait-retries flag was removed from Helm.
# This configuration is ignored and preserved only for backward compatibility.
# waitRetries: 3
# if set and --wait enabled, will wait until all Jobs have been completed before marking the release as successful. It will wait for as long as --timeout (default false)
waitForJobs: true
# time in seconds to wait for any individual Kubernetes operation (like Jobs for hooks, and waits on pod/pvc/svc/deployment readiness) (default 300)
timeout: 600
# performs pods restart for the resource if applicable (default false)
recreatePods: true
# forces resource update through delete/recreate if needed (default false)
force: false
# limit the maximum number of revisions saved per release. Use 0 for no limit. (default 10)
historyMax: 10
# automatically create release namespaces if they do not exist (default true)
createNamespace: true
# if used with charts museum allows to pull unstable charts for deployment, for example: if 1.2.3 and 1.2.4-dev versions exist and set to true, 1.2.4-dev will be pulled (default false)
devel: true
# When set to `true`, skips running `helm dep up` and `helm dep build` on this release's chart.
# Useful when the chart is broken, like seen in https://github.com/roboll/helmfile/issues/1547
skipDeps: false
# If set to true, reuses the last release's values and merges them with ones provided in helmfile.
# This attribute, can be overriden in CLI with --reset/reuse-values flag of apply/sync/diff subcommands
reuseValues: false
# propagate `--post-renderer` to helmv3 template and helm install
postRenderer: "path/to/postRenderer"
# propagate `--post-renderer-args` to helmv3 template and helm install. This allows using Powershell
# scripts on Windows as a post renderer
postRendererArgs:
- PowerShell
- "-Command"
- "theScript.ps1"
# cascade `--cascade` to helmv3 delete, available values: background, foreground, or orphan, default: background
cascade: "background"
# insecureSkipTLSVerify is true if the TLS verification should be skipped when fetching remote chart
insecureSkipTLSVerify: false
# plainHttp is true if fetching the remote chart should be done using HTTP
plainHttp: false
# --wait flag for destroy/delete, if set to true, will wait until all resources are deleted before mark delete command as successful
deleteWait: false
# Timeout is the time in seconds to wait for helmfile destroy/delete (default 300)
deleteTimeout: 300
# suppressOutputLineRegex is a list of regex patterns to suppress output lines from helm diff (default []), available in helmfile v0.162.0
suppressOutputLineRegex:
- "version"
# syncReleaseLabels is a list of labels to be added to the release when syncing.
syncReleaseLabels: false
# these labels will be applied to all releases in a Helmfile. Useful in templating if you have a helmfile per environment or customer and don't want to copy the same label to each release
commonLabels:
hello: world
# The desired states of Helm releases.
#
# Helmfile runs various helm commands to converge the current state in the live cluster to the desired state defined here.
releases:
# Published chart example
- name: vault # name of this release
namespace: vault # target namespace
createNamespace: true # automatically create release namespace (default true)
labels: # Arbitrary key value pairs for filtering releases
foo: bar
chart: roboll/vault-secret-manager # the chart being installed to create this release, referenced by `repository/chart` syntax
version: ~1.24.1 # the semver of the chart. range constraint is supported
condition: vault.enabled # The values lookup key for filtering releases. Corresponds to the boolean value of `vault.enabled`, where `vault` is an arbitrary value
missingFileHandler: Warn # set to either "Error" or "Warn". "Error" instructs helmfile to fail when unable to find a values or secrets file. When "Warn", it prints the file and continues.
missingFileHandlerConfig:
# Ignores missing git branch error so that the Debug/Info/Warn handler can treat a missing branch as non-error.
# See https://github.com/helmfile/helmfile/issues/392
ignoreMissingGitBranch: true
# Values files used for rendering the chart
values:
# Value files passed via --values
- vault.yaml
# Inline values, passed via a temporary values file and --values, so that it doesn't suffer from type issues like --set
- address: https://vault.example.com
# Go template available in inline values and values files.
- image:
# The end result is more or less YAML. So do `quote` to prevent number-like strings from accidentally parsed into numbers!
# See https://github.com/roboll/helmfile/issues/608
tag: {{ requiredEnv "IMAGE_TAG" | quote }}
# Otherwise:
# tag: "{{ requiredEnv "IMAGE_TAG" }}"
# tag: !!string {{ requiredEnv "IMAGE_TAG" }}
db:
username: {{ requiredEnv "DB_USERNAME" }}
# value taken from environment variable. Quotes are necessary. Will throw an error if the environment variable is not set. $DB_PASSWORD needs to be set in the calling environment ex: export DB_PASSWORD='password1'
password: {{ requiredEnv "DB_PASSWORD" }}
proxy:
# Interpolate environment variable with a fixed string
domain: {{ requiredEnv "PLATFORM_ID" }}.my-domain.com
scheme: {{ env "SCHEME" | default "https" }}
# Use `values` whenever possible!
# `setString` translates to helm's `--set-string key=val`
setString:
# set a single array value in an array, translates to --set-string bar[0]={1,2}
- name: bar[0]
values:
- 1
- 2
# set a templated value
- name: namespace
value: {{ .Namespace }}
# `set` translates to helm's `--set key=val`, that is known to suffer from type issues like https://github.com/roboll/helmfile/issues/608
set:
# single value loaded from a local file, translates to --set-file foo.config=path/to/file
- name: foo.config
file: path/to/file
# set a single array value in an array, translates to --set bar[0]={1,2}
- name: bar[0]
values:
- 1
- 2
# set a templated value
- name: namespace
value: {{ .Namespace }}
# will attempt to decrypt it using helm-secrets plugin
secrets:
- vault_secret.yaml
# Override helmDefaults options for verify, wait, waitForJobs, timeout, recreatePods, force and reuseValues.
verify: true
keyring: path/to/keyring.gpg
# --skip-schema-validation flag to helm 'install', 'upgrade' and 'lint' (default false)
skipSchemaValidation: false
wait: true
# DEPRECATED: waitRetries is no longer supported - see documentation above
# waitRetries: 3
waitForJobs: true
timeout: 60
recreatePods: true
force: false
reuseValues: false
# set `false` to uninstall this release on sync. (default true)
installed: true
# Defines the strategy to use when updating. Possible value is:
# - "reinstallIfForbidden": Performs an uninstall before the update only if the update is forbidden (e.g., due to permission issues or conflicts).
updateStrategy: ""
# restores previous state in case of failed release (default false)
atomic: true
# when true, cleans up any new resources created during a failed release (default false)
cleanupOnFail: false
# --kube-context to be passed to helm commands
# See https://github.com/roboll/helmfile/issues/642
# (default "", which means the standard kubeconfig, either ~/kubeconfig or the file pointed by $KUBECONFIG environment variable)
kubeContext: kube-context
# passes --disable-validation to helm diff plugin, this requires diff plugin >= 3.1.2
# It may be helpful to deploy charts with helm api v1 CRDS
# https://github.com/roboll/helmfile/pull/1373
disableValidation: false
# passes --disable-validation to helm diff plugin, this requires diff plugin >= 3.1.2
# It is useful when any release contains custom resources for CRDs that is not yet installed onto the cluster.
# https://github.com/roboll/helmfile/pull/1618
disableValidationOnInstall: false
# passes --disable-openapi-validation to helm diff plugin, this requires diff plugin >= 3.1.2
# It may be helpful to deploy charts with helm api v1 CRDS
# https://github.com/roboll/helmfile/pull/1373
disableOpenAPIValidation: false
# limit the maximum number of revisions saved per release. Use 0 for no limit (default 10)
historyMax: 10
# When set to `true`, skips running `helm dep up` and `helm dep build` on this release's chart.
# Useful when the chart is broken, like seen in https://github.com/roboll/helmfile/issues/1547
skipDeps: false
# propagate `--post-renderer` to helmv3 template and helm install
postRenderer: "path/to/postRenderer"
# propagate `--post-renderer-args` to helmv3 template and helm install. This allows using Powershell
# scripts on Windows as a post renderer
postRendererArgs:
- PowerShell
- "-Command"
- "theScript.ps1"
# cascade `--cascade` to helmv3 delete, available values: background, foreground, or orphan, default: background
cascade: "background"
# insecureSkipTLSVerify is true if the TLS verification should be skipped when fetching remote chart
insecureSkipTLSVerify: false
# plainHttp is true if fetching the remote chart should be done using HTTP
plainHttp: false
# suppressDiff skip the helm diff output. Useful for charts which produces large not helpful diff, default: false
suppressDiff: false
# suppressOutputLineRegex is a list of regex patterns to suppress output lines from helm diff (default []), available in helmfile v0.162.0
suppressOutputLineRegex:
- "version"
# syncReleaseLabels is a list of labels to be added to the release when syncing.
syncReleaseLabels: false
# unitTests is a list of test file or directory paths for helm-unittest integration.
# When specified, `helmfile unittest` will run `helm unittest` with the merged values and these test paths.
# Requires the helm-unittest plugin: https://github.com/helm-unittest/helm-unittest
unitTests:
- tests/vault
# Local chart example
- name: grafana # name of this release
namespace: another # target namespace
chart: ../my-charts/grafana # the chart being installed to create this release, referenced by relative path to local helmfile
values:
- "../../my-values/grafana/values.yaml" # Values file (relative path to manifest)
- ./values/{{ requiredEnv "PLATFORM_ENV" }}/config.yaml # Values file taken from path with environment variable. $PLATFORM_ENV must be set in the calling environment.
wait: true
#
# Advanced Configuration: Nested States
#
helmfiles:
- # Path to the helmfile state file being processed BEFORE releases in this state file
path: path/to/subhelmfile.yaml
# Label selector used for filtering releases in the nested state.
# For example, `name=prometheus` in this context is equivalent to processing the nested state like
# helmfile -f path/to/subhelmfile.yaml -l name=prometheus sync
selectors:
- name=prometheus
# Override state values
values:
# Values files merged into the nested state's values
- additional.values.yaml
# One important aspect of using values here is that they first need to be defined in the values section
# of the origin helmfile, so in this example key1 needs to be in the values or environments.NAME.values of path/to/subhelmfile.yaml
# Inline state values merged into the nested state's values
- key1: val1
- # All the nested state files under `helmfiles:` is processed in the order of definition.
# So it can be used for preparation for your main `releases`. An example would be creating CRDs required by `releases` in the parent state file.
path: path/to/mycrd.helmfile.yaml
- # Terraform-module-like URL for importing a remote directory and use a file in it as a nested-state file
# The nested-state file is locally checked-out along with the remote directory containing it.
# Therefore all the local paths in the file are resolved relative to the file
path: git::https://github.com/cloudposse/helmfiles.git@releases/kiam.yaml?ref=0.40.0
- # By default git repositories aren't updated unless the ref is updated.
# Alternatively, refer to a named ref and disable the caching.
path: git::ssh://git@github.com/cloudposse/helmfiles.git@releases/kiam.yaml?ref=main&cache=false
# If set to "Error", return an error when a subhelmfile points to a
# non-existent path. The default behavior is to print a warning and continue.
missingFileHandler: Error
missingFileHandlerConfig:
# Ignores missing git branch error so that the Debug/Info/Warn handler can treat a missing branch as non-error.
# See https://github.com/helmfile/helmfile/issues/392
ignoreMissingGitBranch: true
#
# Advanced Configuration: Environments
#
# The list of environments managed by helmfile.
#
# The default is `environments: {"default": {}}` which implies:
#
# - `{{ .Environment.Name }}` evaluates to "default"
# - `{{ .Values }}` being empty
environments:
# The "default" environment is available and used when `helmfile` is run without `--environment NAME`.
default:
# Everything from the values.yaml is available via `{{ .Values.KEY }}`.
# Suppose `{"foo": {"bar": 1}}` contained in the values.yaml below,
# `{{ .Values.foo.bar }}` is evaluated to `1`.
values:
- environments/default/values.yaml
# Everything from the values.hcl in the `values` block is available via `{{ .Values.KEY }}`.
# More details in its dedicated section
- environments/default/values.hcl
# Each entry in values can be either a file path or inline values.
# The below is an example of inline values, which is merged to the `.Values`
- myChartVer: 1.0.0-dev
# Any environment other than `default` is used only when `helmfile` is run with `--environment NAME`.
# That is, the "production" env below is used when and only when it is run like `helmfile --environment production sync`.
production:
values:
- environments/production/values.yaml
- myChartVer: 1.0.0
# disable vault release processing
- vault:
enabled: false
## `secrets.yaml` is decrypted by `helm-secrets` and available via `{{ .Environment.Values.KEY }}`
secrets:
- environments/production/secrets.yaml
# Instructs helmfile to fail when unable to find a environment values file listed under `environments.NAME.values`.
#
# Possible values are "Error", "Warn", "Info", "Debug". The default is "Error".
#
# Use "Warn", "Info", or "Debug" if you want helmfile to not fail when a values file is missing, while just leaving
# a message about the missing file at the log-level.
missingFileHandler: Error
missingFileHandlerConfig:
# Ignores missing git branch error so that the Debug/Info/Warn handler can treat a missing branch as non-error.
# See https://github.com/helmfile/helmfile/issues/392
ignoreMissingGitBranch: true
# kubeContext to use for this environment
kubeContext: kube-context
#
# Advanced Configuration: Layering
#
# Helmfile merges all the "base" state files and this state file before processing.
#
# Assuming this state file is named `helmfile.yaml`, all the files are merged in the order of:
# environments.yaml <- defaults.yaml <- templates.yaml <- helmfile.yaml
bases:
- environments.yaml
- defaults.yaml
- templates.yaml
#
# Advanced Configuration: API Capabilities
#
# 'helmfile template' renders releases locally without querying an actual cluster,
# and in this case `.Capabilities.APIVersions` cannot be populated.
# When a chart queries for a specific CRD or the Kubernetes version, this can lead to unexpected results.
#
# Note that `Capabilities.KubeVersion` is deprecated in Helm 3 and `helm template` won't populate it.
# All you can do is fix your chart to respect `.Capabilities.APIVersions` instead, rather than trying to figure out
# how to set `Capabilities.KubeVersion` in Helmfile.
#
# Configure a fixed list of API versions to pass to 'helm template' via the --api-versions flag with the below:
apiVersions:
- example/v1
# Set the kubeVersion to render the chart with your desired Kubernetes version.
# The flag --kube-version was deprecated in helm v3 but it was added again.
# For further information https://github.com/helm/helm/issues/7326
kubeVersion: v1.21
```
### Additional helmDefaults fields
The following `helmDefaults` fields are also available but not shown in the example above:
| Field | Type | Default | Description |
|-------|------|---------|-------------|
| `enableDNS` | bool | false | Enable DNS lookups when rendering templates |
| `skipCRDs` | bool | false | Skip CRDs during installation |
| `skipRefresh` | bool | false | Skip running `helm dependency up` |
| `forceConflicts` | bool | false | Force server-side apply changes against conflicts (Helm 4 only) |
| `takeOwnership` | bool | false | Take ownership of existing resources |
| `trackMode` | string | `""` | Default tracking mode for resources. See [Advanced Features](advanced-features.md#resource-tracking-with-kubedog) |
| `disableAutoDetectedKubeVersionForDiff` | bool | false | Disable auto-detected kubeVersion being passed to helm diff |
### Additional release fields
The following per-release fields are also available:
| Field | Type | Default | Description |
|-------|------|---------|-------------|
| `valuesTemplate` | list | | Like `values` but template expressions are rendered before being passed to Helm |
| `setTemplate` | list | | Like `set` but template expressions are rendered before being passed to Helm |
| `apiVersions` | list | | Per-release API versions (overrides top-level `apiVersions`) |
| `kubeVersion` | string | | Per-release kube version (overrides top-level `kubeVersion`) |
| `valuesPathPrefix` | string | | Prefix for values file paths |
| `verifyTemplate` | string | | Templated verify flag (e.g., `{{ .Values.verify \| default "false" }}`) |
| `waitTemplate` | string | | Templated wait flag |
| `installedTemplate` | string | | Templated installed flag |
| `adopt` | list | | List of resources to adopt (passes `--adopt` to Helm) |
| `forceGoGetter` | bool | false | Force go-getter URL parsing for the chart field. Useful when go-getter URL parsing fails unexpectedly |
| `forceNamespace` | string | | Force namespace on all K8s resources rendered by the chart, even when the template doesn't use `{{ .Namespace }}`. Use with caution |
| `skipRefresh` | bool | false | Per-release skip for `helm dependency up` |
| `disableAutoDetectedKubeVersionForDiff` | bool | false | Disable auto-detected kubeVersion for helm diff on this release |
| `takeOwnership` | bool | false | Take ownership of existing resources for this release |
| `forceConflicts` | bool | false | Force server-side apply against conflicts (Helm 4 only) |
| `description` | string | | Description of the release |
| `enableDNS` | bool | false | Enable DNS lookups when rendering templates |
### Release tracking fields (kubedog)
See [Advanced Features](advanced-features.md#resource-tracking-with-kubedog) for more details:
| Field | Type | Default | Description |
|-------|------|---------|-------------|
| `trackMode` | string | `""` | Track mode: `helm`, `helm-legacy`, or `kubedog` |
| `trackTimeout` | int | 300 | Tracking timeout in seconds |
| `trackLogs` | bool | false | Enable real-time log streaming |
| `trackKinds` | list | | Whitelist of resource kinds to track |
| `skipKinds` | list | | Blacklist of resource kinds to skip |
| `trackResources` | list | | Specific resources to track (objects with `kind`, `name`, `namespace`) |
| `kubedogQPS` | float | | QPS for kubedog kubernetes client |
| `kubedogBurst` | int | | Burst for kubedog kubernetes client |
### Hook kubectlApply
Hooks also support a `kubectlApply` field for running `kubectl apply` directly:
```yaml
releases:
- name: myapp
chart: mychart
hooks:
- events: ["presync"]
showlogs: true
kubectlApply:
filename: manifests/my-resource.yaml
```
Or with kustomize:
```yaml
hooks:
- events: ["presync"]
showlogs: true
kubectlApply:
kustomize: overlays/default/
```
### Repository additional fields
| Field | Type | Description |
|-------|------|-------------|
| `registryConfig` | string | Path to registry configuration file |
| `managed` | string | Managed repository mode |
### Template Partials
Files matching `_*.tpl` in the same directory as the helmfile are automatically loaded as helper templates. For example, a file named `_helpers.tpl` can define named templates that are reusable across your helmfile:
`_helpers.tpl`:
```
{{- define "myapp.labels" -}}
app: myapp
env: {{ .Environment.Name }}
{{- end -}}
```
`helmfile.yaml`:
```yaml
releases:
- name: myapp
chart: mychart
values:
- labels: {{ include "myapp.labels" . | toYaml | nindent 4 }}
```