docker中如何查找镜像呢？

实现思路:
     方式1：
	    进入https://hub.docker.com/ 查找相应的镜像
	 
	 方式2:
	    使用docker search命令直接查找镜像

 
[root@node0 ~]# docker search nginx
INDEX       NAME                                                        DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/nginx                                             Official build of Nginx.                        16904     [OK]       
docker.io   docker.io/linuxserver/nginx                                 An Nginx container, brought to you by Linu...   168                  
docker.io   docker.io/bitnami/nginx                                     Bitnami nginx Docker Image                      131                  [OK]
docker.io   docker.io/ubuntu/nginx                                      Nginx, a high-performance reverse proxy & ...   50                   
docker.io   docker.io/bitnami/nginx-ingress-controller                  Bitnami Docker Image for NGINX Ingress Con...   18                   [OK]
docker.io   docker.io/rancher/nginx-ingress-controller                                                                  10                   
docker.io   docker.io/clearlinux/nginx                                  Nginx reverse proxy server with the benefi...   4                    
docker.io   docker.io/ibmcom/nginx-ingress-controller                   Docker Image for IBM Cloud Private-CE (Com...   4                    
docker.io   docker.io/bitnami/nginx-ldap-auth-daemon                                                                    3                    
docker.io   docker.io/bitnami/nginx-exporter                                                                            2                    
docker.io   docker.io/circleci/nginx                                    This image is for internal use                  2                    
docker.io   docker.io/rancher/nginx-ingress-controller-defaultbackend                                                   2                    
docker.io   docker.io/vmware/nginx                                                                                      2                    
docker.io   docker.io/bitnami/nginx-intel                                                                               1                    
docker.io   docker.io/kasmweb/nginx                                     An Nginx image based off nginx:alpine and ...   1                    
docker.io   docker.io/rancher/nginx                                                                                     1                    
docker.io   docker.io/vmware/nginx-photon                                                                               1                    
docker.io   docker.io/wallarm/nginx-ingress-controller                  Kubernetes Ingress Controller with Wallarm...   1                    
docker.io   docker.io/continuumio/nginx-ingress-ws                                                                      0                    
docker.io   docker.io/ibmcom/nginx-ingress-controller-ppc64le           Docker Image for IBM Cloud Private-CE (Com...   0                    
docker.io   docker.io/ibmcom/nginx-ppc64le                              Docker image for nginx-ppc64le                  0                    
docker.io   docker.io/rancher/nginx-conf                                                                                0                    
docker.io   docker.io/rancher/nginx-ingress-controller-amd64                                                            0                    
docker.io   docker.io/rancher/nginx-ssl                                                                                 0                    
docker.io   docker.io/rapidfort/nginx                                   RapidFort optimized, hardened image for NGINX   0