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Auto-generate API documentation from CRDs
Signed-off-by: Mahnoor Asghar <[email protected]>
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‎Makefile‎

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@@ -220,6 +220,7 @@ manifests: manifests-generate manifests-kustomize ## Generate manifests e.g. CRD
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manifests-generate: $(CONTROLLER_GEN)
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cd apis; $(abspath $<) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:webhook:dir=../config/base/webhook/ output:crd:artifacts:config=../config/base/crds/bases
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$< rbac:roleName=manager-role paths="./..." output:rbac:artifacts:config=config/base/rbac
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./hack/gen-api-doc.sh
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.PHONY: manifests-kustomize
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manifests-kustomize: $(KUSTOMIZE)

‎README.md‎

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@@ -27,6 +27,7 @@ components, see the [Metal³ docs](https://github.com/metal3-io/metal3-docs).
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## Resources
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- [API overview](docs/api-overview.md)
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- [API documentation](docs/api.md)
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- [Setup Development Environment](docs/dev-setup.md)
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- [Configuration](docs/configuration.md)

‎docs/api-overview.md‎

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# API and Resource Definitions
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## BareMetalHost
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**Metal³** introduces the concept of **BareMetalHost** resource, which
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defines a physical host and its properties. See [BareMetalHost
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CR](https://doc.crds.dev/github.com/metal3-io/baremetal-operator/metal3.io/BareMetalHost/v1alpha1)
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or check the source code at `apis/metal3.io/v1alpha1/baremetalhost_types.go`
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for a detailed API description. See the [user
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guide](https://book.metal3.io/bmo/introduction) for information on how to
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manage hosts.
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## Triggering Provisioning
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Several conditions must be met in order to initiate provisioning.
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1. The host `spec.image.url` field must contain a URL for a valid
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image file that is visible from within the cluster and from the
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host receiving the image.
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2. The host must have `online` set to `true` so that the operator will
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keep the host powered on.
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3. The host must have all of the BMC details.
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To initiate deprovisioning, clear the image URL from the host spec.
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## Unmanaged Hosts
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Hosts created without BMC details will be left in the `unmanaged`
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state until the details are provided. Unmanaged hosts cannot be
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provisioned and their power state is undefined.
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## Pausing reconciliation
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It is possible to pause the reconciliation of a BareMetalHost object by adding
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an annotation `baremetalhost.metal3.io/paused`. **Metal³** provider sets the
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value of this annotation as `metal3.io/capm3` when the cluster to which the
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**BareMetalHost** belongs, is paused and removes it when the cluster is
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not paused. If you want to pause the reconciliation of **BareMetalHost** you can
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put any value on this annotation **other than `metal3.io/capm3`**. Please make
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sure that you remove the annotation **only if the value of the annotation is
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not `metal3.io/capm3`, but another value that you have provided**. Removing the
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annotation will enable the reconciliation again.
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## HostFirmwareSettings
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A **HostFirmwareSettings** resource is used to manage BIOS settings for a host,
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there is a one-to-one mapping with **BareMetalHosts**. A
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**HostFirmwareSettings** resource is created when BIOS settings are read from
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Ironic as the host moves to the Ready state. These settings are the complete
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actual BIOS configuration names returned from the BMC, typically 100-200
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settings per host, as compared to the three vendor-independent fields stored in
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the **BareMetalHosts** `firmware` field.
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See [HostFirmwareSettings
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CR](https://doc.crds.dev/github.com/metal3-io/baremetal-operator/metal3.io/HostFirmwareSettings/v1alpha1)
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or check the source code at `apis/metal3.io/v1alpha1/hostfirmwaresettings_types.go`
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for a detailed API description. See the [firmware settings
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guide](https://book.metal3.io/bmo/firmware_settings) for information on how to
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change firmware settings.
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## FirmwareSchema
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A **FirmwareSchema** resource contains the limits each setting, specific to
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each host. This data comes directly from the BMC via Ironic. It can be used
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to prevent misconfiguration of the **HostFirmwareSettings** *spec* field so
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that invalid values are not sent to the host. The **FirmwareSchema** has a
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unique identifier derived from its settings and limits. Multiple hosts may therefore
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have the same **FirmwareSchema** identifier so its likely that more than one
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**HostFirmwareSettings** reference the same **FirmwareSchema** when
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hardware of the same vendor and model are used.
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See [FirmwareSchema
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CR](https://doc.crds.dev/github.com/metal3-io/baremetal-operator/metal3.io/FirmwareSchema/v1alpha1)
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or check the source code at `apis/metal3.io/v1alpha1/firmwareschema_types.go`
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for a detailed API description.
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## HardwareData
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A **HardwareData** resource contains hardware specifications data of a
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specific host and it is tightly coupled to its owner resource
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BareMetalHost. The data in the HardwareData comes from Ironic after a
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successful inspection phase. As such, operator will create HardwareData
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resource for a specific BareMetalHost during transitioning phase from
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inspecting into available state of the BareMetalHost. HardwareData gets
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deleted automatically by the operator whenever its BareMetalHost is
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deleted. Deprovisioning of the BareMetalHost should not trigger the
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deletion of HardwareData, but during next provisioning it can be
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re-created (with the same name and namespace) with the latest inspection
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data retrieved from Ironic. HardwareData holds the same name and
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namespace as its corresponding BareMetalHost resource. Currently,
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HardwareData doesn't have *Status* subresource but only the *Spec*.
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See [HardwareData
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CR](https://doc.crds.dev/github.com/metal3-io/baremetal-operator/metal3.io/HardwareData/v1alpha1)
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or check the source code at `apis/metal3.io/v1alpha1/hardwaredata_types.go`
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for a detailed API description.
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## PreprovisioningImage
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A **PreprovisioningImage** resource is automatically created by
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baremetal-operator for each BareMetalHost to ensure creation of a
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*preprovisioning image* for it. In this context, a preprovisioning image
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is an ISO or initramfs file that contains the [Ironic
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agent](https://docs.openstack.org/ironic-python-agent/). The relevant
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parts of BareMetalHost are copied to the PreprovisioningImage *Spec*,
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the resulting image is expected to appear in the *Status*.
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The baremetal-operator project contains a simple controller for
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PreprovisioningImages that uses images provided in the environment
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variables `DEPLOY_ISO_URL` and `DEPLOY_RAMDISK_URL`. More sophisticated
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controllers may be written downstream (for example, the OpenShift
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[image-customization-controller](https://github.com/openshift/image-customization-controller)).
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See [PreprovisioningImage
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CR](https://doc.crds.dev/github.com/metal3-io/baremetal-operator/metal3.io/PreprovisioningImage/v1alpha1)
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or check the source code at `apis/metal3.io/v1alpha1/preprovisioningimage_types.go`
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for a detailed API description.

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