Azure Pipelines | Azure DevOps Server 2019 | TFS 2018 | TFS 2017
In Microsoft Team Foundation Server (TFS) 2018 and previous versions, build and release pipelines are called definitions, runs are called builds, service connections are called service endpoints, stages are called environments, and jobs are called phases.
Library is a collection of includes_ build and release assets for a project. Assets defined in a library can be used in multiple build and release pipelines of the project. The Library tab can be accessed directly in Azure Pipelines and Team Foundation Server (TFS).
Variable groups are available to only release pipelines in TFS 2017 and earlier. They are available to build and release pipelines in TFS 2018 and in Azure Pipelines. Task groups and service connections are available to build and release pipelines in TFS 2015 and newer, and in Azure Pipelines.
All assets defined in the Library tab share a common security model. You can control who can define new items in a library, and who can use an existing item. Roles are defined for library items, and membership of these roles governs the operations you can perform on those items.
|Role on a library item||Purpose|
|Reader||Members of this role can view the item.|
|User||Members of this role can use the item when authoring build or release pipelines. For example, you must be a 'User' for a variable group to be able to use it in a release pipeline.|
|Administrator||In addition to all the above operations, members of this role can manage membership of all other roles for the item. The user that created an item is automatically added to the Administrator role for that item.|
The security settings for the Library tab control access for all items in the library. Role memberships for individual items are automatically inherited from those of the Library node. In addition to the three roles listed above, the Creator role on the library defines who can create new items in the library, but it does not include Reader and User permissions and cannot be used to manage permissions for other users. By default, the following groups are added to the Administrator role of the library: Build Administrators, Release Administrators, and Project Administrators.
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