Add Tempest gate job for stable/2026.1

Now we have stable/2026.1 branch ready for devstack
and so does for all service projects.

This commit adds the Tempest testing for stable/2026.1
by adding new jobs running on stable/2026.1 version of
openstack.

Change-Id: I801632d437bbaad49168df15b4763887e35af408
Signed-off-by: Ghanshyam Maan <gmaan.os14@gmail.com>
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index 45e117f..e5a25c2 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -37,7 +37,7 @@
         # if things are working in latest and oldest it will work in between
         # stable branches also. If anything is breaking we will be catching
         # those in respective stable branch gate.
-        - tempest-full-2025-2:
+        - tempest-full-2026-1:
             irrelevant-files: *tempest-irrelevant-files
         - tempest-full-2024-2:
             irrelevant-files: *tempest-irrelevant-files
@@ -183,28 +183,36 @@
             irrelevant-files: *tempest-irrelevant-files
         # Run stable releases jobs except those are running in check
         # pipeline already
+        - tempest-full-2025-2
         - tempest-full-2025-1
         - tempest-full-2024-2
+        - tempest-multinode-2026-1
         - tempest-multinode-2025-2
         - tempest-multinode-2025-1
         - tempest-multinode-2024-2
+        - tempest-slow-2026-1
         - tempest-slow-2025-2
         - tempest-slow-2025-1
         - tempest-slow-2024-2
+        - tempest-full-2026-1-extra-tests
         - tempest-full-2025-2-extra-tests
         - tempest-full-2025-1-extra-tests
         - tempest-full-2024-2-extra-tests
     periodic-stable:
       jobs:
+        - tempest-full-2026-1
         - tempest-full-2025-2
         - tempest-full-2025-1
         - tempest-full-2024-2
+        - tempest-multinode-2026-1
         - tempest-multinode-2025-2
         - tempest-multinode-2025-1
         - tempest-multinode-2024-2
+        - tempest-slow-2026-1
         - tempest-slow-2025-2
         - tempest-slow-2025-1
         - tempest-slow-2024-2
+        - tempest-full-2026-1-extra-tests
         - tempest-full-2025-2-extra-tests
         - tempest-full-2025-1-extra-tests
         - tempest-full-2024-2-extra-tests
diff --git a/zuul.d/stable-jobs.yaml b/zuul.d/stable-jobs.yaml
index 479ffff..74c0b3f 100644
--- a/zuul.d/stable-jobs.yaml
+++ b/zuul.d/stable-jobs.yaml
@@ -1,6 +1,12 @@
 # NOTE(gmann): This file includes all stable release jobs definition.
 
 - job:
+    name: tempest-full-2026-1
+    parent: tempest-full-py3
+    nodeset: openstack-single-node-noble
+    override-checkout: stable/2026.1
+
+- job:
     name: tempest-full-2025-2
     parent: tempest-full-py3
     nodeset: openstack-single-node-noble
@@ -19,6 +25,12 @@
     override-checkout: stable/2024.2
 
 - job:
+    name: tempest-full-2026-1-extra-tests
+    parent: tempest-extra-tests
+    nodeset: openstack-single-node-noble
+    override-checkout: stable/2026.1
+
+- job:
     name: tempest-full-2025-2-extra-tests
     parent: tempest-extra-tests
     nodeset: openstack-single-node-noble
@@ -37,6 +49,12 @@
     override-checkout: stable/2024.2
 
 - job:
+    name: tempest-multinode-2026-1
+    parent: tempest-multinode-full-py3
+    nodeset: openstack-two-node-noble
+    override-checkout: stable/2026.1
+
+- job:
     name: tempest-multinode-2025-2
     parent: tempest-multinode-full-py3
     nodeset: openstack-two-node-noble
@@ -55,6 +73,12 @@
     override-checkout: stable/2024.2
 
 - job:
+    name: tempest-slow-2026-1
+    parent: tempest-slow-py3
+    nodeset: openstack-two-node-noble
+    override-checkout: stable/2026.1
+
+- job:
     name: tempest-slow-2025-2
     parent: tempest-slow-py3
     nodeset: openstack-two-node-noble