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denzhel/query_docker_rate_limit.md

Created April 29, 2021 19:41
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Query Docker for rate limit
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query_docker_rate_limit.md

If you're using Docker Hub as a docker registry and using an anonymous account at some point you will hit the rate limit. To know where you stand use this:

IMAGE="ratelimitpreview/test"
TOKEN=$(curl "https://auth.docker.io/token?service=registry.docker.io&scope=repository:$IMAGE:pull" | jq -r .token)
curl --head -H "Authorization: Bearer $TOKEN" https://registry-1.docker.io/v2/$IMAGE/manifests/latest

This will output:

RateLimit-Limit: 2500;w=21600
RateLimit-Remaining: 2495;w=21600

2500 = How many requests you can do w = The duration in seconds

Credit: https://about.gitlab.com/blog/2020/11/18/docker-hub-rate-limit-monitoring/

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