// Module included in the following assemblies:
//
// * operators/operator_sdk/osdk-cli-reference.adoc

[id="osdk-cli-reference-generate_{context}"]
= generate

The `operator-sdk generate` command invokes a specific generator to generate
code as needed.

[id="osdk-cli-reference-generate-crds_{context}"]
== crds

The `generate crds` subcommand generates CRDs or updates them if they exist, under
`deploy/crds/__crd.yaml`. OpenAPI V3 validation YAML is generated as a
`validation` object.

.`generate crds` flags
[options="header",cols="1,3"]
|===
|Flag |Description

|`--crd-version` (string)
|CRD version to generate (default `v1beta1`)

|`-h`, `--help`
|Help for `generate crds`
|===

For example:

[source,terminal]
----
$ operator-sdk generate crds
----

[source,terminal]
----
$ tree deploy/crds
----

.Example output
[source,terminal]
----
├── deploy/crds/app.example.com_v1alpha1_appservice_cr.yaml
└── deploy/crds/app.example.com_appservices_crd.yaml
----

[id="osdk-cli-reference-generate-csv_{context}"]
== csv

The `csv` subcommand writes a ClusterServiceVersion (CSV) manifest for use with
Operator Lifecycle Manager (OLM). It also optionally writes
CustomResourceDefinition (CRD) files to
`deploy/olm-catalog/<operator_name>/<csv_version>`.

.`generate csv` flags
[options="header",cols="1,3"]
|===
|Flag |Description

|`--csv-channel` (string)
|The channel the CSV should be registered under in the package manifest.

|`--csv-config` (string)
|The path to the CSV configuration file. Default:
`deploy/olm-catalog/csv-config.yaml`.

|`--csv-version` (string)
|The semantic version of the CSV manifest. Required.

|`--default-channel`
|Use the channel passed to `--csv-channel` as the package manifests' default
channel. Only valid when `--csv-channel` is set.

|`--from-version` (string)
|The semantic version of CSV manifest to use as a base for a new version.

|`--operator-name`
|The Operator name to use while generating the CSV.

|`--update-crds`
|Updates CRD manifests in `deploy/<operator_name>/<csv_version>` using the
latest CRD manifests.

|===

For example:

[source,terminal]
----
$ operator-sdk generate csv --csv-version 0.1.0 --update-crds
----

.Example output
[source,terminal]
----
INFO[0000] Generating CSV manifest version 0.1.0
INFO[0000] Fill in the following required fields in file deploy/olm-catalog/operator-name/0.1.0/operator-name.v0.1.0.clusterserviceversion.yaml:
	spec.keywords
	spec.maintainers
	spec.provider
	spec.labels
INFO[0000] Created deploy/olm-catalog/operator-name/0.1.0/operator-name.v0.1.0.clusterserviceversion.yaml
----

[id="osdk-cli-reference-generate-k8s_{context}"]
== k8s

The `k8s` subcommand runs the Kubernetes
link:https://github.com/kubernetes/code-generator[code-generators] for all CRD
APIs under `pkg/apis/`. Currently, `k8s` only runs `deepcopy-gen` to generate
the required `DeepCopy()` functions for all Custom Resource (CR) types.

[NOTE]
====
This command must be run every time the API (`spec` and `status`) for a custom
resource type is updated.
====

For example:

[source,terminal]
----
$ tree pkg/apis/app/v1alpha1/
----

.Example output
[source,terminal]
----
pkg/apis/app/v1alpha1/
├── appservice_types.go
├── doc.go
└── register.go
----

[source,terminal]
----
$ operator-sdk generate k8s
----

.Example output
[source,terminal]
----
Running code-generation for Custom Resource (CR) group versions: [app:v1alpha1]
Generating deepcopy funcs
----

[source,terminal]
----
$ tree pkg/apis/app/v1alpha1/
----

.Example output
[source,terminal]
----
pkg/apis/app/v1alpha1/
├── appservice_types.go
├── doc.go
├── register.go
└── zz_generated.deepcopy.go
----