Question 81949 in Docker Question posted in
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docker-compose build behind proxy. failed to solve: rpc error . dial tcp: lookup auth.docker.io. on rockylinux image

failed to solve: rpc error: code = Unknown desc = failed to solve with frontend dockerfile.v0: failed to create LLB definition: failed to authorize: rpc error: code = Unknown desc = failed to fetch anonymous token: Get "https://auth.docker.io/token?scope=repository%3Alibrary%2Frockylinux%3Apull&service=registry.docker.io": dial tcp: lookup auth.docker.io on ipadress.

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  1. Chosen as BEST ANSWER
    0

    before docker compose build --no-cache -progress=plain

    run this first: docker pull rockylinux:9-minimal


  2. 0

    In Docker, actions like pulling images are performed by the Docker daemon and do not use your shell’s environment variables.

    When working behind a proxy, apart from configuring your proxy settings within your shell, you need to also configure them in Docker deamon.

    To configure proxy in docker deamon, create directory /etc/systemd/system/docker.service.d for Docker proxy settings config file. Then create /etc/systemd/system/docker.service.d/http-proxy.conf with the below contents. Replace proxy_server_host and proxy_server_port with your proxy server’s host IP and port respectively.

    [Service]
Environment="HTTP_PROXY=http://proxy_server_host:proxy_server_port"
Environment="HTTPS_PROXY=http://proxy_server_host:proxy_server_port"
Environment="NO_PROXY=localhost,127.0.0.1"

    Apply the settings and restart docker with the below commands.

    sudo systemctl daemon-reload
sudo systemctl restart docker

    You can confirm whether the settings have been applied with:

    systemctl show --property=Environment docker
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