Error response from daemon: Get https://registry-1.docker.io/v2/: proxyconnect tcp: dial tcp :443:

安裝完docker,pull image或者是docker login 都需要訪問外網,本文是採用代理的方式.

但是依然沒有成功,看看官網的 proxy的配置吧.

HTTP/HTTPS proxy

The Docker daemon uses the HTTP_PROXY, HTTPS_PROXY, and NO_PROXY environmental variables in its start-up environment to configure HTTP or HTTPS proxy behavior. You cannot configure these environment variables using the daemon.json file.

This example overrides the default docker.service file.

If you are behind an HTTP or HTTPS proxy server, for example in corporate settings, you need to add this configuration in the Docker systemd service file.

1. Create a systemd drop-in directory for the docker service:

   $ sudo mkdir -p /etc/systemd/system/docker.service.d
   

2. Create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:

   [Service]
   Environment="HTTP_PROXY=http://proxy.example.com:80/"
   

   Or, if you are behind an HTTPS proxy server, create a file called /etc/systemd/system/docker.service.d/https-proxy.conf that adds the HTTPS_PROXY environment variable:

   [Service]
   Environment="HTTPS_PROXY=https://proxy.example.com:443/"
   

3. If you have internal Docker registries that you need to contact without proxying you can specify them via the NO_PROXYenvironment variable.

   The NO_PROXY variable specifies a string that contains comma-separated values for hosts that should be excluded from proxying. These are the options you can specify to exclude hosts:

   • IP address prefix (1.2.3.4)
   • Domain name, or a special DNS label (*)
   • A domain name matches that name and all subdomains. A domain name with a leading “.” matches subdomains only. For example, given the domains foo.example.com and example.com:
     • example.com matches example.com and foo.example.com, and
     • .example.com matches only foo.example.com
   • A single asterisk (*) indicates that no proxying should be done
   • Literal port numbers are accepted by IP address prefixes (1.2.3.4:80) and domain names (foo.example.com:80)

   Config examples:

   [Service]    
   Environment="HTTP_PROXY=http://proxy.example.com:80/" "NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp"
   

   Or, if you are behind an HTTPS proxy server:

   [Service]    
   Environment="HTTPS_PROXY=https://proxy.example.com:443/" "NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp"
   

4. Flush changes:

   $ sudo systemctl daemon-reload
   

5. Restart Docker:

   $ sudo systemctl restart docker
   

6. Verify that the configuration has been loaded:

   $ systemctl show --property=Environment docker
   Environment=HTTP_PROXY=http://proxy.example.com:80/
   

   Or, if you are behind an HTTPS proxy server:

   $ systemctl show --property=Environment docker
   Environment=HTTPS_PROXY=https://proxy.example.com:443/