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development performance sysadmin

docker proxy image download

Docker doesn’t like me for some reason, and I often get really bad download speeds from my home IP address.

One crude fix, is use an external server I can access as a SOCKS proxy.
To do so, edit / create /etc/systemd/system/docker.service.d/http-proxy.conf and put in it :

[Service]
Environment="HTTP_PROXY=socks5://localhost:8888"

Then, restart/reload systemd ( systemctl daemon-reload ; service docker restart )

Then, setup your socks tunnel using some remote server you have SSH access on –

ssh -D 8888 david@some.remote.server

Hopefully now when you do a ‘docker-compose up‘ it won’t take forever.

A crude way of speed testing it, is to try running this bash snippet :

token=$(curl "https://auth.docker.io/token?service=registry.docker.io&scope=repository:library/mysql:pull" | jq -r .token)

curl -v https://registry-1.docker.io/v2/library/mysql/blobs/sha256:2a72cbf407d67c7a7a76dd48e432091678e297140dce050ad5eccad918a9f8d6 -H "Authorization: Bearer $token" -L > /dev/null

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