3.5.2.2.3. 获取有关服务的信息

要获取有关特定服务的更多信息，请运行以下命令： 

$ odo catalog describe service

例如： 

$ odo catalog describe service postgresql-operator.v0.1.1/Database

输出示例

KIND:    Database
VERSION: v1alpha1

DESCRIPTION:
     Database is the Schema for the the Database Database API

FIELDS:
   awsAccessKeyId (string)
     AWS S3 accessKey/token ID

     Key ID of AWS S3 storage. Default Value: nil Required to create the Secret
     with the data to allow send the backup files to AWS S3 storage.
[...]

服务通过 CustomResourceDefinition(CRD)资源表示在集群中。上一命令显示 CRD 的详细信息，如 kind、version，以及用于定义此自定义资源实例的字段列表。

从 CRD 中包含的 OpenAPI schema 中提取字段列表。此信息在 CRD 中是可选的，如果不存在，它将从代表该服务的 ClusterServiceVersion(CSV)资源中提取。

也可以请求 Operator 支持的服务的描述，而无需提供 CRD 类型信息。要描述没有 CRD 的集群中的 Redis Operator，请运行以下命令： 

$ odo catalog describe service redis-operator.v0.8.0

输出示例

NAME:	redis-operator.v0.8.0
DESCRIPTION:

	A Golang based redis operator that will make/oversee Redis
	standalone/cluster mode setup on top of the Kubernetes. It can create a
	redis cluster setup with best practices on Cloud as well as the Bare metal
	environment. Also, it provides an in-built monitoring capability using

... (cut short for beverity)

	Logging Operator is licensed under [Apache License, Version
	2.0](https://github.com/OT-CONTAINER-KIT/redis-operator/blob/master/LICENSE)


CRDs:
	NAME           DESCRIPTION
	RedisCluster   Redis Cluster
	Redis          Redis