Steps

Send a POST request to https://<NEXUS_URL>/service/rest/v1/cleanup-policies with a JSON body containing name, format (maven2), and the criteriaLastDownloaded field set to 60 (days)
Authenticate with an account that holds the nexus:settings:read and nexus:settings:update permissions; use HTTP Basic Auth or a user token
Associate the cleanup policy with one or more hosted repositories by PATCHing the repository configuration at /service/rest/v1/repositories/maven/hosted/<repoName> and adding the cleanup policy name to the cleanup.policyNames array
Trigger the cleanup task manually via POST to /service/rest/v1/tasks/<taskId>/run where the task type is repository.cleanup, or let the scheduled task run on its configured interval
Review the Cleanup Performance Data page in the Nexus UI or query /service/rest/v1/cleanup-policies/<policyName> to confirm artifact counts targeted

Known gotchas

The cleanup policies REST API endpoint (/service/rest/v1/cleanup-policies) is available in Nexus Repository Pro; the OSS edition may expose a limited subset or require direct database/script approaches
criteriaLastDownloaded counts days since last download for hosted repos but counts days since first upload for proxy repos — this asymmetry is a common source of misconfiguration
Running the cleanup task removes component metadata but does not immediately reclaim disk space; a separate 'Compact blob store' task must be run afterward to free storage

Create a Docker-format repository in Google Artifact Registry and configure cleanup policies to delete untagged images older than 30 days via gcloud and the REST API

cloud.google.com · 5 steps · unrated

Create, update, and delete New Relic alert policies via the NerdGraph API

docs.newrelic.com · 5 steps · unrated

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Create and apply a cleanup policy in Sonatype Nexus Repository via the REST API to remove Maven artifacts not downloaded in the past 60 days

Steps

Known gotchas

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