Set Token Permissions for github workflows #6583
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Signed-off-by: Joyce <joycebrum@google.com>
Signed-off-by: Joyce <joycebrum@google.com>
yatbear
approved these changes
Sep 20, 2023
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Motivation for features / changes
GitHub grants, by default, write-all permission for the GITHUB_TOKEN, which is shared by the actions used and, in case of any action got compromised, can be exploited by a malicious attacker.
Considering this, it is both an OpenSSF Scorecard and GitHub recommendation to use permissions minimally scoped.
Technical description of changes
To minimally scope the permissions, it is a good practice to set a read-only basic permission (such as contents: read) and grant any additional permission on job level. In tensorboard case, only the contents: read on top level is enough for both workflows.
Screenshots of UI changes (or N/A)
N/A
Detailed steps to verify changes work correctly (as executed by you)
I've checked the CI.yml workflow at https://github.com/joycebrum/tensorboard/actions/runs/6190658790 and it is working fine.
The nightly-release does not need any permission from GITHUB_TOKEN other than contents: read (for the ci.yml to run)
Alternate designs / implementations considered (or N/A)
N/A