fix: expand AD user name filter

[razvan]

Description

Fixes #702

How I tested

1. Used ad-init to set up an AD VM and a connected Kubernetes cluster.
2. Created a new AD group called ad-test, a new AD user called razvan in the SBLE.TEST realm and added razvan to the ad-test group.
3. Deployed the opa-operator with make run-dev
4. Deployed the following OPA cluster (see below) and port forwarded 9476 of the OPA pod.
5. Ran the following curl command:

❯ curl -XPOST -H "Content-type: application/json" \
-d '{"username": "razvan@sble.test"}' \
http://localhost:9476/user | jq
{
  "id": "de639e1d-6b75-4a7d-8347-f2c8ade06d51",
  "username": "razvan@sble.test",
  "groups": [
    "CN=Users,CN=Builtin,DC=sble,DC=test",
    "CN=Domain Users,CN=Users,DC=sble,DC=test",
    "CN=ad-test,CN=Users,DC=sble,DC=test"
  ],
  "customAttributes": {}
}

OPA cluster definition:

---
apiVersion: opa.stackable.tech/v1alpha1
kind: OpaCluster
metadata:
  name: opa
spec:
  image:
    productVersion: 1.0.1
  clusterConfig:
    userInfo:
      backend:
        experimentalActiveDirectory:
          ldapServer: sble-addc.sble.test
          baseDistinguishedName: DC=sble,DC=test
          customAttributeMappings:
            country: c
          kerberosSecretClassName: kerberos-ad
          tls:
            verification:
              server:
                caCert:
                  secretClass: tls-ad
      cache: # optional, enabled by default
        entryTimeToLive: 60s # optional, defaults to 60s
  servers:
    roleGroups:
      default:
        podOverrides:
          spec:
            containers:
              - name: bundle-builder
                imagePullPolicy: IfNotPresent
              - name: user-info-fetcher
                imagePullPolicy: IfNotPresent
                env:
                  - name: CONSOLE_LOG
                    value: DEBUG
                  - name: CONSOLE_LOG_LEVEL
                    value: DEBUG

The (debug) logs of the user-info-fetcher container showed:

+ '[' -f /stackable/kerberos/krb5.conf ']'
++ grep -oP 'default_realm = \K.*' /stackable/kerberos/krb5.conf
+ export KERBEROS_REALM=SBLE.TEST
+ KERBEROS_REALM=SBLE.TEST
+ /sbin/stackable-opa-user-info-fetcher
2025-06-26T15:31:23.126407Z  INFO stackable_opa_user_info_fetcher: Starting user-info-fetcher built_info.pkg_version="0.0.0-dev" built_info.target="x86_64-unknown-linux-gnu" built_info.bui
lt_time_utc="Tue, 1 Jan 1980 00:00:00 +0000" built_info.rustc_version="rustc 1.86.0 (05f9846f8 2025-03-31) (built from a source tarball)"
2025-06-26T15:47:19.663489Z DEBUG get_user_info{request=UserInfoRequestByName(UserInfoRequestByName { username: "razvan@sble.test" }) ldap_server="sble-addc.sble.test"}: stackable_opa_user
_info_fetcher::backend::active_directory: requesting user from LDAP user_query_filter="(&(objectClass=user)(|(userPrincipalName=razvan@sble.test@SBLE.TEST)(userPrincipalName=razvan@sble.te
st)(sAMAccountName=razvan@sble.test)))" requested_user_attrs=["objectSid", "objectGUID", "userPrincipalName", "primaryGroupID", "c"]
2025-06-26T15:47:19.664185Z DEBUG get_user_info{request=UserInfoRequestByName(UserInfoRequestByName { username: "razvan@sble.test" }) ldap_server="sble-addc.sble.test"}: stackable_opa_user
_info_fetcher::backend::active_directory: got user from LDAP user=SearchEntry { dn: "CN=Razvan Mihai,CN=Users,DC=sble,DC=test", attrs: {"primaryGroupID": ["513"], "userPrincipalName": ["ra
zvan@sble.test"]}, bin_attrs: {"objectGUID": [[29, 158, 99, 222, 117, 107, 125, 74, 131, 71, 242, 200, 173, 224, 109, 81]], "objectSid": [[1, 5, 0, 0, 0, 0, 0, 5, 21, 0, 0, 0, 170, 35, 214
 189, 227, 141, 132, 148, 20, 231, 109, 119, 84, 4, 0, 0[]]} }
2025-06-26T15:47:19.664293Z DEBUG get_user_info{request=UserInfoRequestByName(UserInfoRequestByName { username: "razvan@sble.test" }) ldap_server="sble-addc.sble.test"}:user_attributes:use
r_group_distinguished_names: stackable_opa_user_info_fetcher::backend::active_directory: computed primary group SID for user user_sid=S-1-5-21-3184927658-2491715043-2003691284-1108 primary
_group_sid=S-1-5-21-3184927658-2491715043-2003691284-513 primary_group_relative_id=513
2025-06-26T15:47:19.664323Z DEBUG get_user_info{request=UserInfoRequestByName(UserInfoRequestByName { username: "razvan@sble.test" }) ldap_server="sble-addc.sble.test"}:user_attributes:use
r_group_distinguished_names: stackable_opa_user_info_fetcher::backend::active_directory: requesting user groups from LDAP groups_query_filter="(&(objectClass=group)(|(objectSid=S-1-5-21-31
84927658-2491715043-2003691284-513)(member:1.2.840.113556.1.4.1941:=<SID=S-1-5-21-3184927658-2491715043-2003691284-513>)(member:1.2.840.113556.1.4.1941:=<SID=S-1-5-21-3184927658-2491715043
-2003691284-1108>)))" requested_group_attrs=["dn"]

where the LDAP search filter was:

(&(objectClass=user)(|(userPrincipalName=razvan@sble.test@SBLE.TEST)(userPrincipalName=razvan@sble.te
st)(sAMAccountName=razvan@sble.test)))

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
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• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Links to generated (nightly) docs added
• Release note snippet added

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
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• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[razvan]

Depends on stackabletech/krb5-rs#1

[nightkr]

Functionality-wise this seems to work fine for me. Do we want to add cases for this to the ad-user-info test?

[razvan]

Functionality-wise this seems to work fine for me. Do we want to add cases for this to the ad-user-info test?

Indeed. Successfully tested with the help of stackabletech/ad-init#8

[nightkr]

LGTM if tests pass

[razvan]

❯ ./scripts/run-tests --skip-release --skip-delete --test ad-user-info
...
--- PASS: kuttl (17.51s)
    --- PASS: kuttl/harness (0.00s)
        --- PASS: kuttl/harness/ad-user-info_opa-latest-1.4.2_openshift-false (17.21s)
PASS