Error “Get https://registry-1.docker.io/v2/: net/http: request canceled” while building image

Question

I am getting the below error while building an image

Step 1/10 : FROM ubuntu:14.04
Get https://registry-1.docker.io/v2/: net/http: request canceled while wai         


        

Answer 1

I think the issue is that you are behind the proxy which in which case you need to write make manual configuration in Docker systemd service file. That will overrides the default docker.service file.

If you are using Docker for Windows then simply set the default DNS to 8.8.8.8 on the "vEthernet (DockerNAT)" network adapter. But, remember this is not best practice as you will be exposing from your office network.

In linux environment, you could add the environment variable as you are behind HTTP_PROXY or HTTPS_PROXY, as you are using port 80 or 443 respectively. As shown below in /etc/systemd/system/docker.service.d/http-proxy.conf

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

as for HTTTP_PROXY in /etc/systemd/system/docker.service.d/https-proxy.conf

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

Then just restart docker after deamon reload,

 $ sudo systemctl daemon-reload
 $ sudo systemctl restart docker

Hope this works.

Reference: https://docs.docker.com/engine/admin/systemd/#httphttps-proxy