Question

我试图在Openshift Origin Pod上部署我的Docker存储库中可用的图像：

$ docker images
REPOSITORY                                   TAG                 IMAGE ID            CREATED             SIZE
tomcat9demo                                  latest              535da1774da0        9 weeks ago         350.2 MB

运行时：

$ oc new-app tomcat9demo --name tomcatdemo

显然它似乎从Docker存储库中找到了图像：

--> Found Docker image 535da17 (9 weeks old) from  for "tomcat9demo:latest"

    * This image will be deployed in deployment config "tomcat9demo"
    * Port 8080/tcp will be load balanced by service "tomcat9demo"
      * Other containers can access this service through the hostname "tomcat9demo"
    * WARNING: Image "tomcat9demo:latest" runs as the 'root' user which may not be permitted by your cluster administrator

--> Creating resources with label app=tomcat9demo ...
    deploymentconfig "tomcat9demo" created
    service "tomcat9demo" created
--> Success

但状态显示错误。图像拉动似乎有错误：

$ oc get pods
NAME                           READY     STATUS         RESTARTS   AGE
tomcat9demo-1-zrj98            0/1       ErrImagePull   0          16s
$ oc status
Error from server: the server could not find the requested resource

我是否需要其他东西从本地Docker存储库中获取图像？

Answer 1

您需要指定选项--docker-image，以使其指向本地映像存储库。示例：

oc new-app tomcat9demo --docker-image tomcat9demo

Answer 2

您应该将标签添加到本地docker镜像。

docker build -t image_name .
docker tag image_name:<current tag ot just a latest> image_name:<new tag>
oc new-app mage_name:<new tag> --name=app_name

您应该看到：

Found Docker image <your docker image id> (19 minutes old) from  for "image_name:<new tag>"

Answer 3

参考这个很棒的youtube视频，借助以下帮助，我能够将本地docker映像成功部署到专用openshift平台的docker注册表中： Push local docker images to openshift registry - minishift

希望有帮助。

从本地Docker镜像中打开新应用程序

3 个答案: