Set proxy on docker

Question

Im using centos 7.7 and docker 19.03.

I cannot pull images and getting :

Error response from daemon: Get https://registry-1.docker.io.v2./: dial tcp lookup : server misbehaving

I did what all guides on google suggested:

cat /etc/systemd/system/docker.service.d/http-proxy.conf
[Service]
Enviroment="HTTP_PROXY=http://myproxy"

systemctl deamon reload
systemctl restart docker

and nothing happends. if i do echo $http_proxy i see my settings.

more settings: /etc/enviroment

http_proxy=http://myproxy
https_proxy=https://myproxy

The proxy setting used to work and is working on another server. On this server i had deleted docker old versions :

docker-1.13.1
docker-common-1.13.1
docker-client-1.13.1

With the older docker it seems to work but with docker-ce it doesnt. I even rebooted and reinstalled again.

Answer 1

Solved it! I guess because i am using Centos then doing systemctl restart docker didnt really work.

Created the directory :

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

Create the file :

nano /etc/systemd/system/docker.service.d/http-proxy.conf

Add the following line:

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

Restart daemon:

systemctl daemon-reload

And this restart method worked:

service docker restart

and then it accepted all the env vars

Answer 2

Set both variables, and they can both be set to your http server. The variable is for the type of traffic being proxied, not the protocol to the proxy server:

[Service]
Environment="HTTP_PROXY=http://myproxy:port"
Environment="HTTPS_PROXY=http://myproxy:port"