kubernetes-pod Run

Description

Executes a Run in an ad-hoc instance of a Kubernetes Pod and waits for it to complete.

The pod spec can be provided directly via the podSpec field, or the resource field can be used to find the pod spec in the Kubernetes manifests provided via the files and/or manifests fields.

Below is the full schema reference for the action. For an introduction to configuring Garden, please look at our Configuration guide.

kubernetes-pod actions also export values that are available in template strings. See the Outputs section below for details.

Configuration Keys

type

The type of action, e.g. exec, container or kubernetes. Some are built into Garden but mostly these will be defined by your configured providers.

Type	Required

name

A valid name for the action. Must be unique across all actions of the same kind in your project.

Type	Required

description

A description of the action.

Type	Required

source

By default, the directory where the action is defined is used as the source for the build context.

You can override this by setting either source.path to another (POSIX-style) path relative to the action source directory, or source.repository to get the source from an external repository.

If using source.path, you must make sure the target path is in a git repository.

For source.repository behavior, please refer to the Remote Sources guide.

Type	Required

source.path

source > path

A relative POSIX-style path to the source directory for this action. You must make sure this path exists and is in a git repository!

Type	Required

source.repository

source > repository

When set, Garden will import the action source from this repository, but use this action configuration (and not scan for configs in the separate repository).

Type	Required

source.repository.url

source > repository > url

A remote repository URL. Currently only supports git servers. Must contain a hash suffix pointing to a specific branch or tag, with the format: #<branch|tag>

Type	Required

Example:

source:
  ...
  repository:
    ...
    url: "git+https://github.com/org/repo.git#v2.0"

dependencies[]

A list of other actions that this action depends on, and should be built, deployed or run (depending on the action type) before processing this action.

Each dependency should generally be expressed as a "<kind>.<name>" string, where is one of build, deploy, run or test, and is the name of the action to depend on.

You may also optionally specify a dependency as an object, e.g. { kind: "Build", name: "some-image" }.

Any empty values (i.e. null or empty strings) are ignored, so that you can conditionally add in a dependency via template expressions.

Type	Default	Required

Example:

dependencies:
  - build.my-image
  - deploy.api

disabled

Set this to true to disable the action. You can use this with conditional template strings to disable actions based on, for example, the current environment or other variables (e.g. disabled: ${environment.name == "prod"}). This can be handy when you only need certain actions for specific environments, e.g. only for development.

For Build actions, this means the build is not performed unless it is declared as a dependency by another enabled action (in which case the Build is assumed to be necessary for the dependant action to be run or built).

For other action kinds, the action is skipped in all scenarios, and dependency declarations to it are ignored. Note however that template strings referencing outputs (i.e. runtime outputs) will fail to resolve when the action is disabled, so you need to make sure to provide alternate values for those if you're using them, using conditional expressions.

Type	Default	Required

environments[]

If set, the action is only enabled for the listed environment types. This is effectively a cleaner shorthand for the disabled field with an expression for environments. For example, environments: ["prod"] is equivalent to disabled: ${environment.name != "prod"}.

Type	Required

include[]

Specify a list of POSIX-style paths or globs that should be regarded as source files for this action, and thus will affect the computed version of the action.

For actions other than Build actions, this is usually not necessary to specify, or is implicitly inferred. An exception would be e.g. an exec action without a build reference, where the relevant files cannot be inferred and you want to define which files should affect the version of the action, e.g. to make sure a Test action is run when certain files are modified.

Build actions have a different behavior, since they generally are based on some files in the source tree, so please reference the docs for more information on those.

Note that you can also exclude files using the exclude field or by placing .gardenignore files in your source tree, which use the same format as .gitignore files. See the Configuration Files guide for details.

Type	Required

Example:

include:
  - my-app.js
  - some-assets/**/*

exclude[]

Specify a list of POSIX-style paths or glob patterns that should be explicitly excluded from the action's version.

For actions other than Build actions, this is usually not necessary to specify, or is implicitly inferred. For Deploy, Run and Test actions, the exclusions specified here only applied on top of explicitly set include paths, or such paths inferred by providers. See the Configuration Files guide for details.

Unlike the scan.exclude field in the project config, the filters here have no effect on which files and directories are watched for changes when watching is enabled. Use the project scan.exclude field to affect those, if you have large directories that should not be watched for changes.

Type	Required

Example:

exclude:
  - tmp/**/*
  - '*.log'

variables

A map of variables scoped to this particular action. These are resolved before any other parts of the action configuration and take precedence over group-scoped variables (if applicable) and project-scoped variables, in that order. They may reference group-scoped and project-scoped variables, and generally can use any template strings normally allowed when resolving the action.

Type	Required

varfiles[]

Specify a list of paths (relative to the directory where the action is defined) to a file containing variables, that we apply on top of the action-level variables field, and take precedence over group-level variables (if applicable) and project-level variables, in that order.

If you specify multiple paths, they are merged in the order specified, i.e. the last one takes precedence over the previous ones.

The format of the files is determined by the configured file's extension:

• .yaml/.yml - YAML. The file must consist of a YAML document, which must be a map (dictionary). Keys may contain any value type. YAML format is used by default.

• .env - Standard "dotenv" format, as defined by dotenv.
• .json - JSON. Must contain a single JSON object (not an array).

NOTE: The default varfile format was changed to YAML in Garden v0.13, since YAML allows for definition of nested objects and arrays.

To use different varfiles in different environments, you can template in the environment name to the varfile name, e.g. varfile: "my-action.${environment.name}.env" (this assumes that the corresponding varfiles exist).

If a listed varfile cannot be found, throwing an error. To add optional varfiles, you can use a list item object with a path and an optional optional boolean field.

varfiles:
  - path: my-action.env
    optional: true

Type	Default	Required

Example:

varfiles:
  "my-action.env"

varfiles[].path

varfiles > path

Path to a file containing a path.

Type	Required

varfiles[].optional

varfiles > optional

Whether the varfile is optional.

Type	Required

build

Specify a Build action, and resolve this action from the context of that Build.

For example, you might create an exec Build which prepares some manifests, and then reference that in a kubernetes Deploy action, and the resulting manifests from the Build.

This would mean that instead of looking for manifest files relative to this action's location in your project structure, the output directory for the referenced exec Build would be the source.

Type	Required

kind

Type	Allowed Values	Required

timeout

Set a timeout for the run to complete, in seconds.

Type	Default	Required

spec

Type	Required

spec.cacheResult

spec > cacheResult

Set to false if you don't want the Runs's result to be cached. Use this if the Run needs to be run any time your project (or one or more of the Run's dependants) is deployed. Otherwise the Run is only re-run when its version changes, or when you run garden run.

Type	Default	Required

spec.command[]

spec > command

The command/entrypoint used to run inside the container.

Type	Required

Example:

spec:
  ...
  command:
    - /bin/sh
    - '-c'

spec.args[]

spec > args

The arguments to pass to the command/entrypoint used for execution.

Type	Required

Example:

spec:
  ...
  args:
    - rake
    - db:migrate

spec.env

spec > env

Key/value map of environment variables. Keys must be valid POSIX environment variable names (must not start with GARDEN) and values must be primitives or references to secrets.

Type	Default	Required

Example:

spec:
  ...
  env:
      - MY_VAR: some-value
        MY_SECRET_VAR:
          secretRef:
            name: my-secret
            key: some-key
      - {}

spec.artifacts[]

spec > artifacts

Specify artifacts to copy out of the container after the run. The artifacts are stored locally under the .garden/artifacts directory.

Type	Default	Required

spec.artifacts[].source

spec > artifacts > source

A POSIX-style path or glob to copy. Must be an absolute path. May contain wildcards.

Type	Required

Example:

spec:
  ...
  artifacts:
    - source: "/output/**/*"

spec.artifacts[].target

spec > artifacts > target

A POSIX-style path to copy the artifacts to, relative to the project artifacts directory at .garden/artifacts.

Type	Default	Required

Example:

spec:
  ...
  artifacts:
    - target: "outputs/foo/"

spec.namespace

spec > namespace

A valid Kubernetes namespace name. Must be a valid RFC1035/RFC1123 (DNS) label (may contain lowercase letters, numbers and dashes, must start with a letter, and cannot end with a dash) and must not be longer than 63 characters.

Type	Required

spec.kustomize

spec > kustomize

Resolve the specified kustomization and include the resulting resources. Note that if you specify files or manifests as well, these are also included.

Type	Required

spec.kustomize.path

spec > kustomize > path

The directory path where the desired kustomization.yaml is, or a git repository URL. This could be the path to an overlay directory, for example. If it's a path, must be a relative POSIX-style path and must be within the action root. Defaults to the action root. If you set this to null, kustomize will not be run.

Type	Default	Required

spec.kustomize.version

spec > kustomize > version

The Kustomize version to use.

Type	Allowed Values	Default	Required

spec.kustomize.extraArgs[]

spec > kustomize > extraArgs

A list of additional arguments to pass to the kustomize build command. Note that specifying '-o' or '--output' is not allowed.

Type	Default	Required

spec.patchResources[]

spec > patchResources

A list of resources to patch using Kubernetes' patch strategies. This is useful for e.g. overwriting a given container image name with an image built by Garden without having to actually modify the underlying Kubernetes manifest in your source code. Another common example is to use this to change the number of replicas for a given Kubernetes Deployment.

Under the hood, Garden just applies the kubectl patch command to the resource that matches the specified kind and name.

Patches are applied to file manifests, inline manifests, and kustomize files.

You can learn more about patching Kubernetes resources here: https://kubernetes.io/docs/tasks/manage-kubernetes-objects/update-api-object-kubectl-patch/

Type	Default	Required

spec.patchResources[].kind

spec > patchResources > kind

The kind of the resource to patch.

Type	Required

spec.patchResources[].name

spec > patchResources > name

The name of the resource to patch.

Type	Required

spec.patchResources[].strategy

spec > patchResources > strategy

The patch strategy to use. One of 'json', 'merge', or 'strategic'. Defaults to 'strategic'.

You can read more about the different strategies in the offical Kubernetes documentation at: https://kubernetes.io/docs/tasks/manage-kubernetes-objects/update-api-object-kubectl-patch/

Type	Default	Required

spec.patchResources[].patch

spec > patchResources > patch

The patch to apply.

Type	Required

spec.manifests[]

spec > manifests

List of Kubernetes resource manifests to be searched (using resourcee for the pod spec for the Run. If files is also specified, this is combined with the manifests read from the files.

Type	Default	Required

spec.manifests[].apiVersion

spec > manifests > apiVersion

The API version of the resource.

Type	Required

spec.manifests[].kind

spec > manifests > kind

The kind of the resource.

Type	Required

spec.manifests[].metadata

spec > manifests > metadata

Type	Required

spec.manifests[].metadata.name

spec > manifests > metadata > name

The name of the resource.

Type	Required

spec.files[]

spec > files

POSIX-style paths to YAML files to load manifests from. Each can contain multiple manifests, and can include any Garden template strings, which will be resolved before searching the manifests for the resource that contains the Pod spec for the Run.

Type	Default	Required

spec.resource

spec > resource

Specify a Kubernetes resource to derive the Pod spec from for the Run.

This resource will be selected from the manifests provided in this Run's files or manifests config field.

The following fields from the Pod will be used (if present) when executing the Run:

Warning: Garden will retain configMaps and secrets as volumes, but remove persistentVolumeClaim volumes from the Pod spec, as they might already be mounted.

• affinity

• automountServiceAccountToken

• containers

• dnsConfig

• dnsPolicy

• enableServiceLinks

• hostAliases

• hostIPC

• hostNetwork

• hostPID

• hostname

• imagePullSecrets

• nodeName

• nodeSelector

• overhead

• preemptionPolicy

• priority

• priorityClassName

• runtimeClassName

• schedulerName

• securityContext

• serviceAccount

• serviceAccountName

• shareProcessNamespace

• subdomain

• tolerations

• topologySpreadConstraints

• volumes

Type	Required

spec.resource.kind

spec > resource > kind

The kind of Kubernetes resource to find.

Type	Allowed Values	Required

spec.resource.name

spec > resource > name

The name of the resource, of the specified kind. If specified, you must also specify kind.

Type	Required

spec.resource.podSelector

spec > resource > podSelector

A map of string key/value labels to match on any Pods in the namespace. When specified, a random ready Pod with matching labels will be picked as a target, so make sure the labels will always match a specific Pod type.

Type	Required

spec.resource.containerName

spec > resource > containerName

The name of a container in the target. Specify this if the target contains more than one container and the main container is not the first container in the spec.

Type	Required

spec.podSpec

spec > podSpec

Supply a custom Pod specification. This should be a normal Kubernetes Pod manifest. Note that the spec will be modified for the Run, including overriding with other fields you may set here (such as args and env), and removing certain fields that are not supported.

You can find the full Pod spec in the official Kubernetes documentation

The following Pod spec fields from the podSpec will be used (if present) when executing the Run:

• affinity

• automountServiceAccountToken

• containers

• dnsConfig

• dnsPolicy

• enableServiceLinks

• hostAliases

• hostIPC

• hostNetwork

• hostPID

• hostname

• imagePullSecrets

• nodeName

• nodeSelector

• overhead

• preemptionPolicy

• priority

• priorityClassName

• runtimeClassName

• schedulerName

• securityContext

• serviceAccount

• serviceAccountName

• shareProcessNamespace

• subdomain

• tolerations

• topologySpreadConstraints

• volumes

Type	Required

Outputs

The following keys are available via the ${actions.run.<name>} template string key for kubernetes-pod action.

${actions.run.<name>.name}

The name of the action.

Type

${actions.run.<name>.disabled}

Whether the action is disabled.

Type

Example:

my-variable: ${actions.run.my-run.disabled}

${actions.run.<name>.buildPath}

The local path to the action build directory.

Type

Example:

my-variable: ${actions.run.my-run.buildPath}

${actions.run.<name>.sourcePath}

The local path to the action source directory.

Type

Example:

my-variable: ${actions.run.my-run.sourcePath}

${actions.run.<name>.mode}

The mode that the action should be executed in (e.g. 'sync' or 'local' for Deploy actions). Set to 'default' if no special mode is being used.

Build actions inherit the mode from Deploy actions that depend on them. E.g. If a Deploy action is in 'sync' mode and depends on a Build action, the Build action will inherit the 'sync' mode setting from the Deploy action. This enables installing different tools that may be necessary for different development modes.

Type	Default

Example:

my-variable: ${actions.run.my-run.mode}

${actions.run.<name>.var.*}

The variables configured on the action.

Type	Default

${actions.run.<name>.var.<name>}

Type

${actions.run.<name>.outputs.log}

The full log output from the executed action. (Pro-tip: Make it machine readable so it can be parsed by dependants)

Type	Default