Docker image isn't building: Linux container

Question

I am trying to dockerize a simple dotnetcore webapi on linux container on a windows 10 machine and whenever i build the dockerfile i get this error:

c:\docker-tutrial>docker build -t docker-tutorial .

Sending build context to Docker daemon 1.364MB

Step 1/4 : FROM microsoft/dotnet:2.1 Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

I tried:

c:\docker-tutrial>docker build --build -arg http_proxy=http://PROXY:8080 --build -arg https_proxy=http://PROXY:8080 -t docker-tutrial .

Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

My Dockerfile is:

FROM microsoft/dotnet:2.1
WORKDIR /app
COPY ./publish .
ENTRYPOINT ["dotnet", "docker-tutrial.dll"]

I believe it is a proxy issue anyideas!!

See this https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/configure-docker-daemon#proxy-configuration — Tarun Lalwani, Jun 26 '18 at 12:40
Thanks but It didn't work. but i already have Variable there: http_proxy http://proxy.com:port https_proxy http://proxy.com:port — Salah, Jun 26 '18 at 13:05

score 0 · Answer 1 · answered Jun 26 '18 at 15:03

0

It happened the same thing to me, after following various github issues I found out that the best way to overcome this problem is based on pure luck after doing these 4 steps:

Put 8.8.8.8 and 8.8.4.4 as Docker DNS
Restart Docker Service
If you behind any firewall/proxy make sure to update those settings too.
Restart your computer.

These 4 steps usually solve the problem to me.

answered Jun 26 '18 at 15:03

greyhame

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Thanks, but it didn't work, because if i change my DNS internet won't work due to the network structure in the organization. – Salah Jun 28 '18 at 07:14
Oh, too bad! I've noticed another little thing: You tried: `docker build --build -arg http_proxy=http://PROXY:8080 --build -arg https_proxy=http://PROXY:8080 -t docker-tutrial . ` Notice that you used "https_proxy" and you put an'http address, maybe that's the issue? – greyhame Jun 28 '18 at 07:39
Yes, correct i fixed that issue and i passed ENV HTTP_PROXY "http://PROXY:PORT" ENV HTTPS_PROXY "https://PROXY:PORT" in the docker file and it worked. – Salah Jun 28 '18 at 14:00
Happy if I could help :) – greyhame Jun 28 '18 at 14:03

score 0 · Accepted Answer · answered Jun 28 '18 at 14:05

It worked after I fixed the command as greyhame mentioned: docker build --build -arg http_proxy=http://PROXY:8080 --build -arg https_proxy=https://PROXY:port -t docker-tutrial .

And i passed those two lines in the Dockerfile: ENV HTTP_PROXY "PROXY:PORT" ENV HTTPS_PROXY "PROXY:PORT"

Docker image isn't building: Linux container

2 Answers2