红帽全球峰会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
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