6.7. 使用镜像流
以下小节介绍了如何使用镜像流和镜像流标签。
6.7.1. 获取有关镜像流的信息
您可获取有关镜像流的常规信息及其指向的所有标签的详细信息。
流程
获取有关镜像流的常规信息及其指向的所有标签的详细信息：
$ oc describe is/<image-name>
例如：
$ oc describe is/python
输出示例
Name: python Namespace: default Created: About a minute ago Labels: <none> Annotations: openshift.io/image.dockerRepositoryCheck=2017-10-02T17:05:11Z Docker Pull Spec: docker-registry.default.svc:5000/default/python Image Lookup: local=false Unique Images: 1 Tags: 1 3.5 tagged from centos/python-35-centos7 * centos/python-35-centos7@sha256:49c18358df82f4577386404991c51a9559f243e0b1bdc366df25 About a minute ago获取有关特定镜像流标签的所有可用信息：
$ oc describe istag/<image-stream>:<tag-name>
例如：
$ oc describe istag/python:latest
输出示例
Image Name: sha256:49c18358df82f4577386404991c51a9559f243e0b1bdc366df25 Docker Image: centos/python-35-centos7@sha256:49c18358df82f4577386404991c51a9559f243e0b1bdc366df25 Name: sha256:49c18358df82f4577386404991c51a9559f243e0b1bdc366df25 Created: 2 minutes ago Image Size: 251.2 MB (first layer 2.898 MB, last binary layer 72.26 MB) Image Created: 2 weeks ago Author: <none> Arch: amd64 Entrypoint: container-entrypoint Command: /bin/sh -c $STI_SCRIPTS_PATH/usage Working Dir: /opt/app-root/src User: 1001 Exposes Ports: 8080/tcp Docker Labels: build-date=20170801
注意
输出的信息多于显示的信息。
