--- title: Providers weight: 5 description: "Providers connect Crossplane to external APIs" --- Providers enable Crossplane to provision infrastructure on an external service. Providers create new Kubernetes APIs and map them to external APIs. Providers are responsible for all aspects of connecting to non-Kubernetes resources. This includes authentication, making external API calls and providing [Kubernetes Controller](https://kubernetes.io/docs/concepts/architecture/controller/) logic for any external resources. Examples of providers include: * [Provider AWS](https://github.com/upbound/provider-aws) * [Provider Azure](https://github.com/upbound/provider-azure) * [Provider GCP](https://github.com/upbound/provider-gcp) * [Provider Kubernetes](https://github.com/crossplane-contrib/provider-kubernetes) {{< hint "tip" >}} Find more providers in the [Upbound Marketplace](https://marketplace.upbound.io). {{< /hint >}} Providers define every external resource they can create in Kubernetes as a Kubernetes API endpoint. These endpoints are [_Managed Resources_]({{}}). ## Install a Provider Installing a provider creates new Kubernetes resources representing the Provider's APIs. Installing a provider also creates a Provider pod that's responsible for reconciling the Provider's APIs into the Kubernetes cluster. Providers constantly watch the state of the desired managed resources and create any external resources that are missing. Install a Provider with a Crossplane {{}}Provider{{}} object setting the {{}}spec.package{{}} value to the location of the provider package. For example, to install the [AWS Community Provider](https://github.com/crossplane-contrib/provider-aws), ```yaml {label="install"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: package: xpkg.upbound.io/crossplane-contrib/provider-aws:v0.39.0 ``` By default, the Provider pod installs in the same namespace as Crossplane (`crossplane-system`). {{}} Providers are part of the {{}}pkg.crossplane.io{{}} group. The {{}}meta.pkg.crossplane.io{{}} group is for creating Provider packages. Instructions on building Providers are outside of the scope of this document. Read the Crossplane contributing [Provider Development Guide](https://github.com/crossplane/crossplane/blob/master/contributing/guide-provider-development.md) for more information. For information on the specification of Provider packages read the [Crossplane Provider Package specification](https://github.com/crossplane/crossplane/blob/master/contributing/specifications/xpkg.md#provider-package-requirements). ```yaml {label="meta-pkg"} apiVersion: meta.pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: # Removed for brevity ``` {{}} ### Install with Helm Crossplane supports installing Providers during an initial Crossplane installation with the Crossplane Helm chart. Use the {{}}--set provider.packages{{}} argument with `helm install`. For example, to install the AWS Community Provider, ```shell {label="helm"} helm install crossplane \ crossplane-stable/crossplane \ --namespace crossplane-system \ --create-namespace \ --set provider.packages='{xpkg.upbound.io/crossplane-contrib/provider-aws:v0.39.0}' ``` ### Install offline Crossplane installs packages from a local package cache. By default the Crossplane package cache is an [emptyDir volume](https://kubernetes.io/docs/concepts/storage/volumes/#emptydir). Configure Crossplane to use a [PersistentVolumeClaim](https://kubernetes.io/docs/concepts/storage/persistent-volumes/) to use a storage location containing the Provider image. Read more about configuring the Crossplane Pod settings in the [Crossplane install documentation]({{}}). Provide the name of the Provider's `.xpkg` file and set {{}}packagePullPolicy: Never{{}}. For example, to install a locally stored version of Provider AWS set the {{}}package{{}} to the local filename and set the Provider's {{}}packagePullPolicy: Never{{}}. ```yaml {label="offline"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: offline-provider-aws spec: package: provider-aws packagePullPolicy: Never ``` ### Installation options Providers support multiple configuration options to change installation related settings. #### Provider pull policy Use a {{}}packagePullPolicy{{}} to define when Crossplane should download the Provider package to the local Crossplane package cache. The `packagePullPolicy` options are: * `IfNotPresent` - (**default**) Only download the package if it isn't in the cache. * `Always` - Check for new packages every minute and download any matching package that isn't in the cache. * `Never` - Never download the package. Packages are only installed from the local package cache. {{}} The Crossplane {{}}packagePullPolicy{{}} works like the Kubernetes container image [image pull policy](https://kubernetes.io/docs/concepts/containers/images/#image-pull-policy). Crossplane supports the use of tags and package digest hashes like Kubernetes images. {{< /hint >}} For example, to `Always` download a given Provider package use the {{}}packagePullPolicy: Always{{}} configuration. ```yaml {label="pullpolicy",copy-lines="6"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: packagePullPolicy: Always # Removed for brevity ``` #### Revision activation policy The `Active` package revision is the package controller actively reconciling resources. By default Crossplane sets the most recently installed package revision as `Active`. Control the Provider upgrade behavior with a {{}}revisionActivationPolicy{{}}. The {{}}revisionActivationPolicy{{}} options are: * `Automatic` - (**default**) Automatically activate the last installed Provider. * `Manual` - Don't automatically activate a Provider. For example, to change the upgrade behavior to require manual upgrades, set {{}}revisionActivationPolicy: Manual{{}}. ```yaml {label="revision"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: revisionActivationPolicy: Manual # Removed for brevity ``` #### Package revision history limit When Crossplane installs a different version of the same Provider package Crossplane creates a new _revision_. By default Crossplane maintains one _Inactive_ revision. {{}} Read the [Provider upgrade](#upgrade-a-provider) section for more information on the use of package revisions. {{< /hint >}} Change the number of revisions Crossplane maintains with a Provider Package {{}}revisionHistoryLimit{{}}. The {{}}revisionHistoryLimit{{}} field is an integer. The default value is `1`. Disable storing revisions by setting {{}}revisionHistoryLimit{{}} to `0`. For example, to change the default setting and store 10 revisions use {{}}revisionHistoryLimit: 10{{}}. ```yaml {label="revHistoryLimit"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: revisionHistoryLimit: 10 # Removed for brevity ``` #### Install a provider from a private registry Like Kubernetes uses `imagePullSecrets` to [install images from private registries](https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/), Crossplane uses `packagePullSecrets` to install Provider packages from a private registry. Use {{}}packagePullSecrets{{}} to provide a Kubernetes secret to use for authentication when downloading a Provider package. {{}} The Kubernetes secret must be in the same namespace as Crossplane. {{}} The {{}}packagePullSecrets{{}} is a list of secrets. For example, to use the secret named {{}}example-secret{{}} configure a {{}}packagePullSecrets{{}}. ```yaml {label="pps"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: packagePullSecrets: - name: example-secret # Removed for brevity ``` {{}} Configured `packagePullSecrets` aren't passed to any Provider package dependencies. {{< /hint >}} #### Ignore dependencies By default Crossplane installs any [dependencies](#manage-dependencies) listed in a Provider package. Crossplane can ignore a Provider package's dependencies with {{}}skipDependencyResolution{{}}. For example, to disable dependency resolution configure {{}}skipDependencyResolution: true{{}}. ```yaml {label="pkgDep"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: skipDependencyResolution: true # Removed for brevity ``` #### Ignore Crossplane version requirements A Provider package may require a specific or minimum Crossplane version before installing. By default, Crossplane doesn't install a Provider if the Crossplane version doesn't meet the required version. Crossplane can ignore the required version with {{}}ignoreCrossplaneConstraints{{}}. For example, to install a Provider package into an unsupported Crossplane version, configure {{}}ignoreCrossplaneConstraints: true{{}}. ```yaml {label="xpVer"} apiVersion: pkg.crossplane.io/v1 kind: Provider metadata: name: provider-aws spec: ignoreCrossplaneConstraints: true # Removed for brevity ``` ### Manage dependencies Providers packages may include dependencies on other packages including Configurations or other Providers. If Crossplane can't meet the dependencies of a Provider package the Provider reports `HEALTHY` as `False`. For example, this installation of the Upbound AWS reference platform is `HEALTHY: False`. ```shell {copy-lines="1"} kubectl get providers NAME INSTALLED HEALTHY PACKAGE AGE provider-aws-s3 True False xpkg.upbound.io/upbound/provider-aws-s3:v0.41.0 12s ``` To see more information on why the Provider isn't `HEALTHY` use {{}}kubectl describe providerrevisions{{}}. ```yaml {copy-lines="1",label="depend"} kubectl describe providerrevisions Name: provider-aws-s3-92206523fff4 API Version: pkg.crossplane.io/v1 Kind: ProviderRevision Spec: Desired State: Active Image: xpkg.upbound.io/upbound/provider-aws-s3:v0.41.0 Revision: 1 Status: Conditions: Last Transition Time: 2023-10-10T21:06:39Z Reason: UnhealthyPackageRevision Status: False Type: Healthy Controller Ref: Name: Events: Type Reason Age From Message ---- ------ ---- ---- ------- Warning LintPackage 41s (x3 over 47s) packages/providerrevision.pkg.crossplane.io incompatible Crossplane version: package is not compatible with Crossplane version (v1.10.0) ``` The {{}}Events{{}} show a {{}}Warning{{}} with a message that the current version of Crossplane doesn't meet the Configuration package requirements. ## Upgrade a Provider To upgrade an existing Provider edit the installed Provider Package by either applying a new Provider manifest or with `kubectl edit providers`. Update the version number in the Provider's `spec.package` and apply the change. Crossplane installs the new image and creates a new `ProviderRevision`. The `ProviderRevision` allows Crossplane to store deprecated Provider CRDs without removing them until you decide. View the `ProviderRevisions` with {{}}kubectl get providerrevisions{{}} ```shell {label="getPR",copy-lines="1"} kubectl get providerrevisions NAME HEALTHY REVISION IMAGE STATE DEP-FOUND DEP-INSTALLED AGE provider-aws-s3-dbc7f981d81f True 1 xpkg.upbound.io/upbound/provider-aws-s3:v0.37.0 Active 1 1 10d provider-nop-552a394a8acc True 2 xpkg.upbound.io/crossplane-contrib/provider-nop:v0.3.0 Active 11d provider-nop-7e62d2a1a709 True 1 xpkg.upbound.io/crossplane-contrib/provider-nop:v0.2.0 Inactive 13d upbound-provider-family-aws-710d8cfe9f53 True 1 xpkg.upbound.io/upbound/provider-family-aws:v0.40.0 Active 10d ``` By default Crossplane keeps a single {{}}Inactive{{}} Provider. Read the [revision history limit](#package-revision-history-limit) section to change the default value. Only a single revision of a Provider is {{}}Active{{}} at a time. ## Remove a Provider Remove a Provider by deleting the Provider object with `kubectl delete provider`. {{< hint "warning" >}} Removing a Provider without first removing the Provider's managed resources may abandon the resources. The external resources aren't deleted. If you remove the Provider first, you must manually delete external resources through your cloud provider. Managed resources must be manually deleted by removing their finalizers. For more information on deleting abandoned resources read the [Crossplane troubleshooting guide]({{}}). {{< /hint >}} ## Verify a Provider Providers install their own APIs representing the managed resources they support. Providers may also create Deployments, Service Accounts or RBAC configuration. View the status of a Provider with `kubectl get providers` During the install a Provider report `INSTALLED` as `True` and `HEALTHY` as `Unknown`. ```shell {copy-lines="1"} kubectl get providers NAME INSTALLED HEALTHY PACKAGE AGE crossplane-contrib-provider-aws True Unknown xpkg.upbound.io/crossplane-contrib/provider-aws:v0.39.0 63s ``` After the Provider install completes and it's ready for use the `HEALTHY` status reports `True`. ```shell {copy-lines="1"} kubectl get providers NAME INSTALLED HEALTHY PACKAGE AGE crossplane-contrib-provider-aws True True xpkg.upbound.io/crossplane-contrib/provider-aws:v0.39.0 88s ``` {{}} Some Providers install hundreds of Kubernetes Custom Resource Definitions (`CRDs`). This can create significant strain on undersized API Servers, impacting Provider install times. The Crossplane community has more [details on scaling CRDs](https://github.com/crossplane/crossplane/blob/master/design/one-pager-crd-scaling.md). {{< /hint >}} ### Provider conditions Crossplane uses a standard set of `Conditions` for Providers. View the conditions of a provider under their `Status` with `kubectl describe provider`. ```yaml kubectl describe provider Name: my-provider API Version: pkg.crossplane.io/v1 Kind: Provider # Removed for brevity Status: Conditions: Reason: HealthyPackageRevision Status: True Type: Healthy Reason: ActivePackageRevision Status: True Type: Installed # Removed for brevity ``` #### Types Provider `Conditions` support two `Types`: * `Type: Installed` - the Provider package installed but isn't ready for use. * `Type: Healthy` - The Provider package is ready to use. #### Reasons Each `Reason` relates to a specific `Type` and `Status`. Crossplane uses the following `Reasons` for Provider `Conditions`. ##### InactivePackageRevision `Reason: InactivePackageRevision` indicates the Provider Package is using an inactive Provider Package Revision. ```yaml Type: Installed Status: False Reason: InactivePackageRevision ``` ##### ActivePackageRevision The Provider Package is the current Package Revision, but Crossplane hasn't finished installing the Package Revision yet. {{< hint "tip" >}} Providers stuck in this state are because of a problem with Package Revisions. Use `kubectl describe providerrevisions` for more details. {{< /hint >}} ```yaml Type: Installed Status: True Reason: ActivePackageRevision ``` ##### HealthyPackageRevision The Provider is fully installed and ready to use. {{}} `Reason: HealthyPackageRevision` is the normal state of a working Provider. {{< /hint >}} ```yaml Type: Healthy Status: True Reason: HealthyPackageRevision ``` ##### UnhealthyPackageRevision There was an error installing the Provider Package Revision, preventing Crossplane from installing the Provider Package. {{}} Use `kubectl describe providerrevisions` for more details on why the Package Revision failed. {{< /hint >}} ```yaml Type: Healthy Status: False Reason: UnhealthyPackageRevision ``` ##### UnknownPackageRevisionHealth The status of the Provider Package Revision is `Unknown`. The Provider Package Revision may be installing or has an issue. {{}} Use `kubectl describe providerrevisions` for more details on why the Package Revision failed. {{< /hint >}} ```yaml Type: Healthy Status: Unknown Reason: UnknownPackageRevisionHealth ``` ## Configure a Provider Providers have two different types of configurations: * _Controller configurations_ that change the settings of the Provider pod running inside the Kubernetes cluster. For example, setting a `toleration` on the Provider pod. * _Provider configurations_ that change settings used when communicating with an external provider. For example, cloud provider authentication. {{}} Apply `ControllerConfig` objects to Providers. Apply `ProviderConfig` objects to managed resources. {{< /hint >}} ### Controller configuration {{< hint "important" >}} The Crossplane community deprecated the `ControllerConfig` type in v1.11 to announce that there are no further enhancements. Applying a Controller configuration generates a deprecation warning. Controller configurations are still supported until there is a replacement type in a future Crossplane version. You can read more about the design of the [Package Runtime Config](https://github.com/crossplane/crossplane/blob/master/design/one-pager-package-runtime-config.md) which is a future replacement. {{< /hint >}} Applying a Crossplane `ControllerConfig` to a Provider changes the settings of the Provider's pod. The [Crossplane ControllerConfig schema](https://doc.crds.dev/github.com/crossplane/crossplane/pkg.crossplane.io/ControllerConfig/v1alpha1) defines the supported set of ControllerConfig settings. The most common use case for ControllerConfigs are providing `args` to a Provider's pod enabling optional services. For example, enabling [external secret stores](https://docs.crossplane.io/knowledge-base/integrations/vault-as-secret-store/#enable-external-secret-stores-in-the-provider) for a Provider. Each Provider determines their supported set of `args`. ### Provider configuration The `ProviderConfig` determines settings the Provider uses communicating to the external provider. Each Provider determines available settings of their `ProviderConfig`. Provider authentication is usually configured with a `ProviderConfig`. For example, to use basic key-pair authentication with Provider AWS a {{}}ProviderConfig{{}} {{}}spec{{}} defines the {{}}credentials{{}} and that the Provider pod should look in the Kubernetes {{}}Secrets{{}} objects and use the key named {{}}aws-creds{{}}. ```yaml {label="providerconfig"} apiVersion: aws.crossplane.io/v1beta1 kind: ProviderConfig metadata: name: aws-provider spec: credentials: source: Secret secretRef: namespace: crossplane-system name: aws-creds key: creds ``` {{< hint "important" >}} Authentication configuration may be different across Providers. Read the documentation on a specific Provider for instructions on configuring authentication for that Provider. {{< /hint >}} ProviderConfig objects apply to individual Managed Resources. A single Provider can authenticate with multiple users or accounts through ProviderConfigs. Each account's credentials tie to a unique ProviderConfig. When creating a managed resource, attach the desired ProviderConfig. For example, two AWS ProviderConfigs, named {{}}user-keys{{}} and {{}}admin-keys{{}} use different Kubernetes secrets. ```yaml {label="user"} apiVersion: aws.crossplane.io/v1beta1 kind: ProviderConfig metadata: name: user-keys spec: credentials: source: Secret secretRef: namespace: crossplane-system name: my-key key: secret-key ``` ```yaml {label="admin"} apiVersion: aws.crossplane.io/v1beta1 kind: ProviderConfig metadata: name: admin-keys spec: credentials: source: Secret secretRef: namespace: crossplane-system name: admin-key key: admin-secret-key ``` Apply the ProviderConfig when creating a managed resource. This creates an AWS {{}}Bucket{{< /hover >}} resource using the {{}}user-keys{{< /hover >}} ProviderConfig. ```yaml {label="user-bucket"} apiVersion: s3.aws.upbound.io/v1beta1 kind: Bucket metadata: name: user-bucket spec: forProvider: region: us-east-2 providerConfigRef: name: user-keys ``` This creates a second {{}}Bucket{{< /hover >}} resource using the {{}}admin-keys{{< /hover >}} ProviderConfig. ```yaml {label="admin-bucket"} apiVersion: s3.aws.upbound.io/v1beta1 kind: Bucket metadata: name: user-bucket spec: forProvider: region: us-east-2 providerConfigRef: name: admin-keys ```