drone-helm3/docs/parameter_reference.md

Parameter reference

Global

Param name	Type	Purpose
helm_command	string	Indicates the operation to perform. Recommended, but not required. Valid options are upgrade, uninstall, lint, and help.
update_dependencies	boolean	Calls helm dependency update before running the main command.
helm_repos	list<string>	Calls helm repo add $repo before running the main command. Each string should be formatted as repo_name=https://repo.url/.
namespace	string	Kubernetes namespace to use for this operation.
debug	boolean	Generate debug output within drone-helm3 and pass --debug to all helm commands. Use with care, since the debug output may include secrets.

Linting

Linting is only triggered when the helm_command setting is "lint".

Param name	Type	Required	Purpose
chart	string	yes	The chart to be linted. Must be a local path.
values	list<string>		Chart values to use as the --set argument to helm lint.
string_values	list<string>		Chart values to use as the --set-string argument to helm lint.
values_files	list<string>		Values to use as --values arguments to helm lint.
lint_strictly	boolean		Pass --strict to helm lint, to turn warnings into errors.

Installation

Installations are triggered when the helm_command setting is "upgrade." They can also be triggered when the build was triggered by a push, tag, deployment, pull_request, promote, or rollback Drone event.

Param name	Type	Required	Purpose
chart	string	yes	The chart to use for this installation.
release	string	yes	The release name for helm to use.
api_server	string	yes	API endpoint for the Kubernetes cluster.
kubernetes_token	string	yes	Token for authenticating to Kubernetes.
service_account	string		Service account for authenticating to Kubernetes. Default is helm.
kubernetes_certificate	string		Base64 encoded TLS certificate used by the Kubernetes cluster's certificate authority.
chart_version	string		Specific chart version to install.
dry_run	boolean		Pass --dry-run to helm upgrade.
wait	boolean		Wait until kubernetes resources are in a ready state before marking the installation successful.
timeout	duration		Timeout for any individual Kubernetes operation. The installation's full runtime may exceed this duration.
force	boolean		Pass --force to helm upgrade.
values	list<string>		Chart values to use as the --set argument to helm upgrade.
string_values	list<string>		Chart values to use as the --set-string argument to helm upgrade.
values_files	list<string>		Values to use as --values arguments to helm upgrade.
reuse_values	boolean		Reuse the values from a previous release.
skip_tls_verify	boolean		Connect to the Kubernetes cluster without checking for a valid TLS certificate. Not recommended in production.

Uninstallation

Uninstallations are triggered when the helm_command setting is "uninstall" or "delete." They can also be triggered when the build was triggered by a delete Drone event.

Param name	Type	Required	Purpose
release	string	yes	The release name for helm to use.
api_server	string	yes	API endpoint for the Kubernetes cluster.
kubernetes_token	string	yes	Token for authenticating to Kubernetes.
service_account	string		Service account for authenticating to Kubernetes. Default is helm.
kubernetes_certificate	string		Base64 encoded TLS certificate used by the Kubernetes cluster's certificate authority.
dry_run	boolean		Pass --dry-run to helm uninstall.
timeout	duration		Timeout for any individual Kubernetes operation. The uninstallation's full runtime may exceed this duration.
skip_tls_verify	boolean		Connect to the Kubernetes cluster without checking for a valid TLS certificate. Not recommended in production.
chart	string		Required when the global update_dependencies parameter is true. No effect otherwise.

Where to put settings

Any setting can go in either the settings or environment section. If a setting exists in both sections, the version in environment will override the version in settings.

We recommend putting all drone-helm3 configuration in the settings block and limiting the environment block to variables that are used when building your charts.

Formatting non-string values

• Booleans can be yaml's true and false literals or the strings "true" and "false".
• Durations are strings formatted with the syntax accepted by golang's ParseDuration function (e.g. 5m30s)
  • For backward-compatibility with drone-helm, a duration can also be an integer, in which case it will be interpreted to mean seconds.
• List<string>s can be a yaml sequence or a comma-separated string.

All of the following are equivalent:

values: "foo=1,bar=2"
values: ["foo=1", "bar=2"]
values:
  - foo=1
  - bar=2

Note that list members must not contain commas. Both of the following are equivalent:

values_files: [ "./over_9,000.yml" ]
values_files: [ "./over_9", "000.yml" ]