红帽全球峰会第 39 章 Managing subID ranges manually
In a containerized environment, sometimes an IdM user needs to assign subID ranges manually. The following instructions describe how to manage the subID ranges.
39.1. Generating subID ranges using IdM CLI
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As an Identity Management (IdM) administrator, you can generate a subID range and assign it to IdM users.
Prerequisites
- The IdM users exist.
-
You have obtained an IdM
adminticket-granting ticket (TGT). For details, see Using kinit to log in to IdM manually. -
You have
rootaccess to the IdM host where you are executing the procedure.
Procedure
Optional: Check for existing subID ranges:
# ipa subid-findIf a subID range does not exist, select one of the following options:
Generate and assign a subID range to an IdM user:
# ipa subid-generate --owner=idmuser Added subordinate id "359dfcef-6b76-4911-bd37-bb5b66b8c418" Unique ID: 359dfcef-6b76-4911-bd37-bb5b66b8c418 Description: auto-assigned subid Owner: idmuser SubUID range start: 2147483648 SubUID range size: 65536 SubGID range start: 2147483648 SubGID range size: 65536Generate and assign subID ranges to all IdM users:
# /usr/libexec/ipa/ipa-subids --all-users Found 2 user(s) without subordinate ids Processing user 'user4' (1/2) Processing user 'user5' (2/2) Updated 2 user(s) The ipa-subids command was successful
Optional: Assign subID ranges to new IdM users by default:
# ipa config-mod --user-default-subid=True
Verification
Verify that the user has a subID range assigned:
# ipa subid-find --owner=idmuser 1 subordinate id matched Unique ID: 359dfcef-6b76-4911-bd37-bb5b66b8c418 Owner: idmuser SubUID range start: 2147483648 SubUID range size: 65536 SubGID range start: 2147483648 SubGID range size: 65536 Number of entries returned 1
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