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Docker Hub Maintenance - May 2019

Article ID: KB000972

Issue

In our ongoing effort to provide the best possible customer experience and highest level of security, we are taking steps to enhance and update Docker Hub. To do so we will be performing scheduled maintenance on Docker Hub from approximately 9:00AM to 7:15PM, US PDT on Saturday May 4, 2019. During this window, Docker Hub service availability will be impacted and we apologize in advance for any inconvenience this may cause.

Maintenance Activities and Schedule

We will update the following table as we progress through our activities

Stage Approximate Duration Services Available Services Unavailable Status
Docker Hub Automated Builds offline 2 hours docker login, docker pull, docker push, Hub web login, browse Hub web Autobuilds Complete
Docker Hub Read-Only <8 Hours docker login, docker pull, browse Hub web (if already logged in) Autobuilds, docker push, Hub web login Complete
Docker Hub Downtime 15 minutes None Complete
Exit Maintenance Complete

Frequently Asked Questions (FAQ)

Q: Why is Docker Hub unavailable?

A: In our ongoing effort to provide the best possible customer experience and highest level of security, we are taking steps to enhance and update Docker Hub. To do so we will be performing scheduled maintenance on Docker Hub from approximately 9:00AM to 7:15PM, US PST on Saturday May 4, 2019.

Q: Is Docker experiencing a security incident?

A: No, this is a scheduled update and a proactive step we are taking to provide the best possible customer experience and highest level of security.

Q: Why is the service down for so long?

A: We are doing important upgrades to our Hub service which require us to put Hub into a limited service mode. Docker Hub will still be available for pulling images during the service period. You will not be able to push new images during a portion of the maintenance window. Autobuilds will be unavailable for the duration of the scheduled maintenance. We apologize for any inconvenience this may cause.

Q: Why wasn’t I given more notice about the scheduled maintenance window?

A: Given the nature of this update and the need to ensure the highest level of security, we have provided limited advanced notice. We understand that the maintenance process impacts our customers, and we apologize in advance for any inconvenience this may cause.

Q: Is this maintenance related to recent Docker Hub data breach?

A: While we discovered unauthorized access to a single Hub database storing a subset of non-financial user data last week, which has since been remediated, we are always looking at ways to improve and enhance our security practices to protect our customers and their data. The planned maintenance for Docker Hub on Saturday May 4 is a proactive step we are taking to provide the best possible customer experience and highest level of security