Red Hat Summit Red Hat Summit지원콘솔개발자평가판 시작연락처

이 콘텐츠는 선택한 언어로 제공되지 않습니다.

Chapter 9. Namespace auto-pruning architecture

For the namespace auto-pruning feature, two distinct database tables within a database schema were created: one for namespaceautoprunepolicy and another for autoprunetaskstatus. An auto-prune worker carries out the configured policies.

Namespace auto prune policy database table

The namespaceautoprunepolicy database table holds the policy configuration for a single namespace. There is only one entry per namespace, but there is support for multiple rows per namespace_id. The policy field holds the policy details, such as {method: "creation_date", olderThan: "2w"} or {method: "number_of_tags", numTags: 100}.

Expand
Table 9.1. namespaceautoprunepolicy database table
FieldTypeAttributesDescription

uuid

character varying (225)

Unique, indexed

Unique identifier for this policy

namespace_id

Integer

Foreign Key

Namespace that the policy falls under

policy

text

JSON

Policy configuration

Auto-prune task status database table

The autoprunetaskstatus table registers tasks to be executed by the auto-prune worker. Tasks are executed within the context of a single namespace. Only one task per namespace exists.

Expand
Table 9.2. autoprunetaskstatus database table
FieldTypeAttributesDescription

namespace_id

Integer

Foreign Key

Namespace that this task belongs to

last_ran_ms

Big Integer (bigint)

Nullable, indexed

Last time that the worker executed the policies for this namespace

status

text

Nullable

Details from the last execution task

9.1. Auto-prune worker
링크 복사

The following sections detail information about the auto-prune worker.

9.1.1. Auto-prune-task-creation
링크 복사

When a new policy is created in the namespaceautoprunepolicy database table, a row is also created in the autoprunetask table. This is done in the same transaction. The auto-prune worker uses the entry in the autoprunetask table to identify which namespace it should execute policies for.

9.1.2. Auto-prune worker execution
링크 복사

The auto-pruning worker is an asynchronous job that executes configured policies. Its workflow is based on values in the autoprunetask table. When a task begins, the following occurs:

  • The auto-prune worker starts on a set interval, which defaults at 30 seconds.

  • The auto-prune worker selects a row from autoprunetask with the least, or null, last_ran_ms and FOR UPDATE SKIP LOCKED.

    • A null last_ran_ms indicates that the task was never ran.
    • A task that hasn’t been ran in he longest amount of time, or has never been run at all, is prioritized.

  • The auto-prune worker obtains the policy configuration from the namespaceautoprunepolicy table.

    • If no policy configuration exists, the entry from autoprunetask is deleted for this namespace and the procedure stops immediately.

  • The auto-prune worker begins a paginated loop of all repositories under the organization.

    • The auto-prune worker determines much pruning method to use based on policy.method.

  • The auto-prune worker executes the pruning method with the policy configuration retrieved earlier.

    • For pruning by the number of tags: the auto-pruner worker gets the number of currently active tags sorted by creation date, and deletes the older tags to the configured number.
    • For pruning by date: the auto-pruner worker gets the active tags older than the specified time span and any tags returned are deleted.
  • The auto-prune worker adds audit logs of the tags deleted.
  • The last_ran_ms gets updated after a row from autoprunetask is selected.
  • The auto-prune worker ends.
맨 위로 이동
Red Hat logoGithubredditYoutubeTwitter

자세한 정보

평가판, 구매 및 판매

커뮤니티

Red Hat 문서 정보

Red Hat을 사용하는 고객은 신뢰할 수 있는 콘텐츠가 포함된 제품과 서비스를 통해 혁신하고 목표를 달성할 수 있습니다. 최신 업데이트를 확인하세요.

보다 포괄적 수용을 위한 오픈 소스 용어 교체

Red Hat은 코드, 문서, 웹 속성에서 문제가 있는 언어를 교체하기 위해 최선을 다하고 있습니다. 자세한 내용은 다음을 참조하세요.Red Hat 블로그.

Red Hat 소개

Red Hat은 기업이 핵심 데이터 센터에서 네트워크 에지에 이르기까지 플랫폼과 환경 전반에서 더 쉽게 작업할 수 있도록 강화된 솔루션을 제공합니다.

Theme

© 2025 Red Hat