docker push 报错：received unexpected HTTP status: 500 Internal Server Error

解决办法：关闭selinux

[root@k8s-master ~]# docker push 10.0.0.10:5000/nginx
The push refers to a repository [10.0.0.10:5000/nginx]
22439467ad99: Retrying in 1 second 
b4a29beac87c: Retrying in 1 second 
488dfecc21b1: Retrying in 1 second 
received unexpected HTTP status: 500 Internal Server Error
[root@k8s-master ~]# setenforce 0
[root@k8s-master ~]# docker push 10.0.0.10:5000/nginx
The push refers to a repository [10.0.0.10:5000/nginx]
22439467ad99: Pushed 
b4a29beac87c: Pushed 
488dfecc21b1: Pushed 
latest: digest: sha256:62f787b94e5faddb79f96c84ac0877aaf28fb325bfc3601b9c0934d4c107ba94 size: 948
[root@k8s-master ~]# vim /etc/selinux/config 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected. 
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted