mirror of https://github.com/crossplane/docs.git
Update MR Section (#457)
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---
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title: Import Existing Resources
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weight: 200
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---
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If you have resources that are already provisioned in a Provider,
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you can import them as managed resources and let Crossplane manage them.
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A managed resource's [`managementPolicy`]({{<ref "/v1.12/concepts/managed-resources#managementpolicy">}})
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field enables importing external resources into Crossplane.
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Crossplane can import resources either [manually]({{<ref
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"#import-resources-manually">}}) or [automatically]({{<ref
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"#import-resources-automatically">}}).
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## Import resources manually
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Crossplane can discover and import existing Provider resources by matching the
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`crossplane.io/external-name` annotation in a managed resource.
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To import an existing external resource in a Provider, create a new managed
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resource with the `crossplane.io/external-name` annotation. Set the annotation
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value to the name of the resource in the Provider.
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For example, to import an existing GCP Network named
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{{<hover label="annotation" line="5">}}my-existing-network{{</hover>}},
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create a new managed resource and use the
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{{<hover label="annotation" line="5">}}my-existing-network{{</hover>}} in the
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annotation.
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```yaml {label="annotation",copy-lines="none"}
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apiVersion: compute.gcp.crossplane.io/v1beta1
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kind: Network
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metadata:
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annotations:
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crossplane.io/external-name: my-existing-network
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```
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The {{<hover label="name" line="5">}}metadata.name{{</hover>}}
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field can be anything you want. For example,
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{{<hover label="name" line="5">}}imported-network{{</hover>}}.
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{{< hint "note" >}}
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This name is the
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name of the Kubernetes object. It's not related to the resource name inside the
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Provider.
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{{< /hint >}}
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```yaml {label="name",copy-lines="none"}
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apiVersion: compute.gcp.crossplane.io/v1beta1
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kind: Network
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metadata:
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annotations:
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name: imported-network
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crossplane.io/external-name: my-existing-network
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```
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Leave the
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{{<hover label="fp" line="8">}}spec.forProvider{{</hover>}} field empty.
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Crossplane imports the settings and automatically applies them to the managed
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resource.
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{{< hint "important" >}}
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If the managed resource has _required_ fields in the
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{{<hover label="fp" line="8">}}spec.forProvider{{</hover>}} you must add it to
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the `forProvider` field.
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The values of those fields must match what's inside the Provider or Crossplane
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overwrites the existing values.
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{{< /hint >}}
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```yaml {label="fp",copy-lines="all"}
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apiVersion: compute.gcp.crossplane.io/v1beta1
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kind: Network
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metadata:
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annotations:
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name: imported-network
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crossplane.io/external-name: my-existing-network
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spec:
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forProvider: {}
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```
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Crossplane now controls and manages this imported resource. Any changes to the
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managed resource `spec` changes the external resource.
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## Import resources automatically
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Automatically import external resources with the
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`ObserveOnly` [`managementPolicy`]({{<ref "/v1.12/concepts/managed-resources#managementpolicy">}}).
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Crossplane imports `ObserveOnly` resources but never changes or deletes the
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resources.
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{{<hint "important" >}}
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The managed resource `managementPolicy` option is an alpha feature.
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Enable the `managementPolicy` in a provider with `--enable-management-policies`
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in a
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[ControllerConfig]({{<ref "/v1.12/concepts/providers#controller-configuration" >}}).
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{{< /hint >}}
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<!-- vale off -->
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### Apply the ObserveOnly managementPolicy
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<!-- vale on -->
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Create a new managed resource matching the
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{{<hover label="oo-policy" line="1">}}apiVersion{{</hover>}} and
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{{<hover label="oo-policy" line="2">}}kind{{</hover>}} of the resource
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to import and add
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{{<hover label="oo-policy" line="4">}}managementPolicy: ObserveOnly{{</hover>}} to the
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{{<hover label="oo-policy" line="3">}}spec{{</hover>}}
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For example, to import a GCP SQL DatabaseInstance, create a new resource with
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the {{<hover label="oo-policy" line="4">}}managementPolicy: ObserveOnly{{</hover>}}
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set.
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```yaml {label="oo-policy",copy-lines="none"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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spec:
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managementPolicy: ObserveOnly
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```
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### Add the external-name annotation
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Add the {{<hover label="oo-ex-name" line="5">}}crossplane.io/external-name{{</hover>}}
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annotation for the resource. This name must match the name inside the Provider.
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For example, for a GCP database named
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{{<hover label="oo-ex-name" line="5">}}my-external-database{{</hover>}}, apply
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the
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{{<hover label="oo-ex-name" line="5">}}crossplane.io/external-name{{</hover>}}
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annotation with the value
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{{<hover label="oo-ex-name" line="5">}}my-external-database{{</hover>}}.
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```yaml {label="oo-ex-name",copy-lines="none"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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metadata:
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annotations:
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crossplane.io/external-name: my-external-database
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spec:
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managementPolicy: ObserveOnly
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```
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### Create a Kubernetes object name
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Create a {{<hover label="oo-name" line="4">}}name{{</hover>}} to use for the
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Kubernetes object.
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For example, name the Kubernetes object
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{{<hover label="oo-name" line="4">}}my-imported-database{{</hover>}}.
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```yaml {label="oo-name",copy-lines="none"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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metadata:
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name: my-imported-database
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annotations:
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crossplane.io/external-name: my-external-database
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spec:
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managementPolicy: ObserveOnly
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```
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### Identify a specific external resource
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If more than one resource inside the Provider shares the same name, identify the
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specific resource with a unique
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{{<hover line="9" label="oo-region">}}spec.forProvider{{</hover>}} field.
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For example, only import the GCP SQL database in the
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{{<hover line="10" label="oo-region">}}us-central1{{</hover>}} region.
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```yaml {label="oo-region"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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metadata:
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name: my-imported-database
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annotations:
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crossplane.io/external-name: my-external-database
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spec:
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managementPolicy: ObserveOnly
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forProvider:
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region: "us-central1"
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```
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### Apply the managed resource
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Apply the new managed resource. Crossplane syncs the status of the external
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resource in the cloud with the newly created managed resource.
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### View the discovered resource
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Crossplane discovers the managed resource and populates the
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{{<hover label="ooPopulated" line="12">}}status.atProvider{{</hover>}}
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fields with the values from the external resource.
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```yaml {label="ooPopulated",copy-lines="none"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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metadata:
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annotations:
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crossplane.io/external-name: existing-database-instance
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name: existing-database-instance
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spec:
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managementPolicy: ObserveOnly
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forProvider:
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region: us-central1
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status:
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atProvider:
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connectionName: crossplane-playground:us-central1:existing-database-instance
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databaseVersion: POSTGRES_14
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deletionProtection: true
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firstIpAddress: 35.184.74.79
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id: existing-database-instance
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publicIpAddress: 35.184.74.79
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region: us-central1
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# Removed for brevity
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settings:
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- activationPolicy: ALWAYS
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availabilityType: REGIONAL
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diskSize: 100
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# Removed for brevity
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pricingPlan: PER_USE
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tier: db-custom-4-26624
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version: 4
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conditions:
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- lastTransitionTime: "2023-02-22T07:16:51Z"
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reason: Available
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status: "True"
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type: Ready
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- lastTransitionTime: "2023-02-22T07:16:51Z"
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reason: ReconcileSuccess
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status: "True"
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type: Synced
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```
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<!-- vale off -->
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## Control imported ObserveOnly resources
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<!-- vale on -->
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Crossplane can take active control of `ObserveOnly` imported resources by
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changing the `managementPolicy` after import.
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Change the {{<hover label="fc" line="8">}}managementPolicy{{</hover>}} field
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of the managed resource to
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{{<hover label="fc" line="8">}}FullControl{{</hover>}}.
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Copy any required parameter values from
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{{<hover label="fc" line="16">}}status.atProvider{{</hover>}} and provide them
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in {{<hover label="fc" line="9">}}spec.forProvider{{</hover>}}.
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{{< hint "tip" >}}
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Manually copy the important `spec.atProvider` values to `spec.forProvider`.
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{{< /hint >}}
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```yaml {label="fc"}
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apiVersion: sql.gcp.upbound.io/v1beta1
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kind: DatabaseInstance
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metadata:
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annotations:
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crossplane.io/external-name: existing-database-instance
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name: existing-database-instance
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spec:
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managementPolicy: FullControl
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forProvider:
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databaseVersion: POSTGRES_14
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region: us-central1
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settings:
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- diskSize: 100
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tier: db-custom-4-26624
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status:
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atProvider:
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databaseVersion: POSTGRES_14
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region: us-central1
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# Removed for brevity
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settings:
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- diskSize: 100
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tier: db-custom-4-26624
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# Removed for brevity
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conditions:
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- lastTransitionTime: "2023-02-22T07:16:51Z"
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reason: Available
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status: "True"
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type: Ready
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- lastTransitionTime: "2023-02-22T11:16:45Z"
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reason: ReconcileSuccess
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status: "True"
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type: Synced
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```
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Crossplane now fully manages the imported resource. Crossplane applies any
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changes to the managed resource in the Provider's external resource.
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
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@ -360,8 +360,9 @@ authentication for that Provider.
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<!-- vale write-good.TooWordy = NO -->
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<!-- vale write-good.TooWordy = NO -->
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<!-- allow multiple -->
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<!-- allow multiple -->
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ProviderConfig objects apply to individual Managed Resources. A single
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ProviderConfig objects apply to individual managed resources with a
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Provider can authenticate with multiple users or accounts through
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[`providerConfigRef`]({{<ref "../concepts/managed-resources#providerconfigref" >}}).
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A single Provider can authenticate with multiple users or accounts through
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ProviderConfigs.
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ProviderConfigs.
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<!-- vale write-good.TooWordy = YES -->
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<!-- vale write-good.TooWordy = YES -->
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@ -12,5 +12,5 @@ cat config.yaml
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if [ "$CONTEXT" = "production" ]; then
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if [ "$CONTEXT" = "production" ]; then
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hugo --minify --baseURL https://docs.crossplane.io/
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hugo --minify --baseURL https://docs.crossplane.io/
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else
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else
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hugo --minify --baseURL $DEPLOY_URL
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hugo --minify --baseURL $DEPLOY_URL/
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fi
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fi
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@ -9,6 +9,7 @@ Datastore
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editCode
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editCode
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Enum
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Enum
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Env
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Env
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finalizer
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finalizers
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finalizers
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GCP's
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GCP's
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Geekdocs
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Geekdocs
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@ -21,6 +22,7 @@ namespace
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namespaced
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namespaced
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namespaces
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namespaces
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Netlify
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Netlify
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PostgreSQL
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proselint
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proselint
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semver
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semver
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shortcode
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shortcode
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@ -28,12 +30,14 @@ shortcodes
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SLAs
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SLAs
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stdin
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stdin
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stdout
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stdout
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Subnet
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subnet
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subnet
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syscall
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syscall
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tolerations
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tolerations
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untrusted
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untrusted
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||||||
Upbound
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Upbound
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||||||
Upbound's
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Upbound's
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|
Upjet
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||||||
Velero
|
Velero
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||||||
VSCode
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VSCode
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Webpack
|
Webpack
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||||||
|
|
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@ -104,7 +104,6 @@ tokens:
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- execution
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- execution
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- executioner
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- executioner
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- explosion
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- explosion
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- failure
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- fairies
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- fairies
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- fairy
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- fairy
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||||||
- faith
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- faith
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|
@ -201,7 +200,6 @@ tokens:
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- redlight
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- redlight
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||||||
- refugee
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- refugee
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- reject
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- reject
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- remains
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- republican
|
- republican
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- roach
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- roach
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- robber
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- robber
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|
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@ -174,7 +174,6 @@ tokens:
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- sternly
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- sternly
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- stupidly
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- stupidly
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- substantially
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- substantially
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- successfully
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- suddenly
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- suddenly
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- surprisingly
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- surprisingly
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- suspiciously
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- suspiciously
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