我创建了自己的私有注册表（private-registry），但是我无法将镜像推送到其中。 然后我得到了以下错误：
The push refers to a repository [private-registry:5000/ubuntu] (len: 1)
unable to ping registry endpoint https://private-registry:5000/v0/
v2 ping attempt failed with error: Get https://private-registry:5000/v2/: net/http: TLS handshake timeout
v1 ping attempt failed with error: Get https://private-registry:5000/v1/_ping: net/http: TLS handshake timeout
运行中注册表的日志显示如下：
time="2015-12-14T07:59:21Z" level=warning msg="No HTTP secret provided - generated random secret. This may cause problems with uploads if multiple registries are behind a load-balancer. To provide a shared secret, fill in http.secret in the configuration file or set the REGISTRY_HTTP_SECRET environment variable." go.version=go1.5.2 instance.id=a77e1955-3688-4fe3-a06e-0341787f8d0f version=v2.2.1
time="2015-12-14T07:59:21Z" level=info msg="redis not configured" go.version=go1.5.2 instance.id=a77e1955-3688-4fe3-a06e-0341787f8d0f version=v2.2.1
time="2015-12-14T07:59:21Z" level=info msg="using inmemory blob descriptor cache" go.version=go1.5.2 instance.id=a77e1955-3688-4fe3-a06e-0341787f8d0f version=v2.2.1
time="2015-12-14T07:59:21Z" level=info msg="listening on [::]:5000, tls" go.version=go1.5.2 instance.id=a77e1955-3688-4fe3-a06e-0341787f8d0f version=v2.2.1
time="2015-12-14T07:59:21Z" level=info msg="Starting upload purge in 47m0s" go.version=go1.5.2 instance.id=a77e1955-3688-4fe3-a06e-0341787f8d0f version=v2.2.1
我无法使用curl访问我的注册表（超时）。 这是我执行的步骤：
首先，我创建了自签名证书：
mkdir -p certs && openssl req \
-newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key \
-x509 -days 365 -out certs/domain.crt
我已经创建了我的注册表，它将使用以下证书：
docker run -d -p 5000:5000 --restart=always --name private-registry \
-v `pwd`/certs:/certs \
-e REGISTRY_HTTP_TLS_CERTIFICATE=certs/domain.crt \
-e REGISTRY_HTTP_TLS_KEY=certs/domain.key \
registry:2
我已经赋予了正确的权限：
chcon -Rt svirt_sandbox_file_t ~certs/
我已经创建了：
/etc/docker/etc.d/private-registry:5000/ 并将我自己的 domain.crt 复制进去。我编辑了我的/etc/hosts，并添加了：10.0.0.X private-registry （我的内部IP和注册表名称）。我还重新启动了Docker和我的注册表。[centos@ ~]$ curl -v private-registry:5000
* About to connect() to private-registry port 5000 (#0)
* Trying 10.0.0.xx...
* Connected to private-registry (10.0.0.xx) port 5000 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: private-registry:5000
> Accept: */*
>
* Connection #0 to host private-registry left intact
[centos@~]$ curl -v https://private-registry:5000
* About to connect() to private-registry port 5000 (#0)
* Trying 10.0.0.xx...
* Connected to private-registry (10.0.0.xx) port 5000 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* NSS error -5990 (PR_IO_TIMEOUT_ERROR)
* I/O operation timed out
* Closing connection 0
curl: (35) I/O operation timed out