【Docker】将自定义的镜像上传至dockerhub或阿里云私有仓库，并在其他节点进行拉取

为了能实现镜像的异地使用以及进行更好的镜像管理，将自定义的镜像上传至dockerhub或阿里云私有仓库，并验证在其他节点进行拉取。

1 上传docker镜像到dockerhub中

首先得有一个dockerhub账号，访问dockerhub。

第一步：登录dockerhub

root@master:/home/hqc/docker_learning/flask-hello-world# docker login -u error12
	Password: 
	WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
	Configure a credential helper to remove this warning. See
	https://docs.docker.com/engine/reference/commandline/login/#credentials-store
	
	Login Succeeded
# 登录成功！其中error12为我的dockerhub账户ID

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第二步：给镜像新打一个标签

不然将会push失败

root@master:/home/hqc/docker_learning/flask-hello-world# docker push flask-hello-world:v1.0
	The push refers to repository [docker.io/library/flask-hello-world]
	d22d05d670e3: Preparing 
	8e0da839bae9: Preparing 
	42ce61e841fa: Preparing 
	a9b125f164c3: Preparing 
	e24045f8c247: Preparing 
	b7b662b31e70: Waiting 
	6f5234c0aacd: Waiting 
	8a5844586fdb: Waiting 
	a4aba4e59b40: Waiting 
	5499f2905579: Waiting 
	a36ba9e322f7: Waiting 
	denied: requested access to the resource is denied
# push失败

root@master:/home/hqc/docker_learning/flask-hello-world# docker tag 6c3d77891c6a dockerhub/flask-hello-world:v1.0
root@master:/home/hqc/docker_learning/flask-hello-world# docker images
REPOSITORY                                             TAG       IMAGE ID       CREATED          SIZE
flask-hello-world                                      v1.0      6c3d77891c6a   38 minutes ago   928MB
dockerhub/flask-hello-world                            v1.0      6c3d77891c6a   38 minutes ago   928MB
# 新打一个标签，并查看镜像

root@master:/home/hqc/docker_learning/flask-hello-world# docker push dockerhub/flask-hello-world:v1.0
	denied: requested access to the resource is denied
# 仍然push失败，原因是：新打的标签名不对（dockerhub/flask-hello-world:v1.0)，/前面应该为对应的账户ID。

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第三步：push镜像到dockerhub公有仓库

root@master:/home/hqc/docker_learning/flask-hello-world# docker tag 6c3d77891c6a error12/flask-hello-world:v1.0 
root@master:/home/hqc/docker_learning/flask-hello-world# docker push error12/flask-hello-world:v1.0
The push refers to repository [docker.io/error12/flask-hello-world]
d22d05d670e3: Pushed 
8e0da839bae9: Pushed 
42ce61e841fa: Mounted from error12/hqc-helloworld 
a9b125f164c3: Mounted from error12/hqc-helloworld 
e24045f8c247: Mounted from error12/hqc-helloworld 
b7b662b31e70: Mounted from error12/hqc-helloworld 
6f5234c0aacd: Mounted from error12/hqc-helloworld 
8a5844586fdb: Mounted from error12/hqc-helloworld 
a4aba4e59b40: Mounted from error12/hqc-helloworld 
5499f2905579: Mounted from error12/hqc-helloworld 
a36ba9e322f7: Mounted from error12/hqc-helloworld 
v1.0: digest: sha256:af862fb9415a8121710e7d87b0ddb085df8a70cc744d6ebe4a8cd64f6d242b2a size: 2636
# 更改之后，成功！！！
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在这里插入图片描述 dockerhub界面中也可以查看，并且提供下载。

2 上传镜像到阿里云镜像私有仓库

01 注册阿里云账户

02 创建个人实例

在这里插入图片描述
里边可新建命名空间（注意：个人实例只提供三个命名空间，需谨慎创建）和镜像仓库。

03 创建命名空间

在这里插入图片描述

04 创建镜像仓库

代码源应该选择本地仓库

可在阿里云平台界面中直接创建，可选择公有或私有仓库；
也可通过命令行创建

# 首先得先退出之前登录的dockerhub仓库
root@master:/home/hqc/docker_learning/flask-hello-world# docker logout
	Removing login credentials for https://index.docker.io/v1/

# 登录阿里云仓库
root@master:/home/hqc/docker_learning/flask-hello-world# docker login --username=errorhqc兮 registry.cn-beijing.aliyuncs.com
	Password: 
	WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
	Configure a credential helper to remove this warning. See
	https://docs.docker.com/engine/reference/commandline/login/#credentials-store
	
	Login Succeeded
# 登录成功！

root@master:/home/hqc/docker_learning/flask-hello-world# docker tag 6c3d77891c6a registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world:v1.0
# 和上传到dockerhub类似，也需要打一个新标签

root@master:/home/hqc/docker_learning/flask-hello-world# docker images
	REPOSITORY                                                       TAG       IMAGE ID       CREATED          SIZE
	registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world   v1.0      6c3d77891c6a   59 minutes ago   928MB
	dockerhub/flask-hello-world                                      v1.0      6c3d77891c6a   59 minutes ago   928MB
	error12/flask-hello-world                                        v1.0      6c3d77891c6a   59 minutes ago   928MB
	flask-hello-world                                                v1.0      6c3d77891c6a   59 minutes ago   928MB
# 查看镜像

root@master:/home/hqc/docker_learning/flask-hello-world# docker push registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world:v1.0
	The push refers to repository [registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world]
	d22d05d670e3: Pushed 
	8e0da839bae9: Pushed 
	42ce61e841fa: Mounted from hqc-k8s/docker_images 
	a9b125f164c3: Mounted from hqc-k8s/docker_images 
	e24045f8c247: Mounted from hqc-k8s/docker_images 
	b7b662b31e70: Mounted from hqc-k8s/docker_images 
	6f5234c0aacd: Mounted from hqc-k8s/docker_images 
	8a5844586fdb: Mounted from hqc-k8s/docker_images 
	a4aba4e59b40: Mounted from hqc-k8s/docker_images 
	5499f2905579: Mounted from hqc-k8s/docker_images 
	a36ba9e322f7: Mounted from hqc-k8s/docker_images 
	v1.0: digest: sha256:af862fb9415a8121710e7d87b0ddb085df8a70cc744d6ebe4a8cd64f6d242b2a size: 2636
# push成功！并且发现速度非常快，至少比dockerhub快
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在这里插入图片描述可见，push成功，自动创建了一个默认为私有的镜像仓库。

具体操作官方有详细介绍：
在这里插入图片描述

3 在其他节点上拉取阿里云私有仓库的镜像

# 登录我的阿里云仓库
root@node01:/home/user# docker login --username=errorhqc兮 registry.cn-beijing.aliyuncs.com
	Password: 
	WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
	Configure a credential helper to remove this warning. See
	https://docs.docker.com/engine/reference/commandline/login/#credentials-store
	
	Login Succeeded
# 登录成功

# 拉取镜像
root@node01:/home/user# docker pull registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world:v1.0
	v1.0: Pulling from hqc-k8s/ali-flask-hello-world
	647acf3d48c2: Pull complete 
	b02967ef0034: Pull complete 
	e1ad2231829e: Pull complete 
	5576ce26bf1d: Pull complete 
	a66b7f31b095: Pull complete 
	05189b5b2762: Pull complete 
	af08e8fda0d6: Pull complete 
	287d56f7527b: Pull complete 
	dc0580965fb6: Pull complete 
	c1147962ae93: Pull complete 
	9310a3ae1b50: Pull complete 
	Digest: sha256:af862fb9415a8121710e7d87b0ddb085df8a70cc744d6ebe4a8cd64f6d242b2a
	Status: Downloaded newer image for registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world:v1.0
	registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world:v1.0
# 拉取成功

root@node01:/home/user# docker images
	REPOSITORY                                                       TAG       IMAGE ID       CREATED         SIZE
	registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-flask-hello-world   v1.0      6c3d77891c6a   14 hours ago    928MB
# 查看镜像
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原文地址：https://blog.csdn.net/qq_47058489/article/details/126589023