config: pipeline: Add rt-stable builds

Copy rt-stable builds from legacy KernelCI.

Signed-off-by: Muhammad Usama Anjum <[email protected]>
---
Changes:
- Change fragments format

Author: musamaanjum

config/pipeline.yaml

@@ -485,6 +485,9 @@ trees:
   media:
     url: 'https://git.linuxtv.org/media_stage.git'
 
+  rt-stable:
+    url: 'https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git'
+
 platforms:
 
   docker:
@@ -812,19 +815,42 @@ build_variants:
     gcc-10:
       build_environment: gcc-10
       architectures:
-        x86_64:
+        x86_64: &x86_64_defconfig
           base_defconfig: 'x86_64_defconfig'
           filters:
             - regex: { defconfig: 'x86_64_defconfig' }
-        arm64:
+        arm64: &arm64_defconfig
           base_defconfig: 'defconfig'
           filters:
             - regex: { defconfig: 'defconfig' }
-        arm:
+        arm: &arm_defconfig
           base_defconfig: 'multi_v7_defconfig'
           filters:
             - regex: { defconfig: 'multi_v7_defconfig' }
 
+preempt_rt_variants: &preempt_rt_variants
+  gcc-10:
+    build_environment: gcc-10
+    fragments: [preempt_rt]
+    architectures:
+      arm:
+        <<: *arm_defconfig
+        extra_configs:
+          - 'multi_v7_defconfig+preempt_rt'
+      arm64:
+        <<: *arm64_defconfig
+        fragments:
+          - 'arm64-chromebook'
+        extra_configs:
+          - 'defconfig+preempt_rt'
+          - 'defconfig+preempt_rt+arm64-chromebook'
+      x86_64:
+        <<: *x86_64_defconfig
+        fragments:
+          - 'x86-board'
+        extra_configs:
+          - 'x86_64_defconfig+preempt_rt'
+          - 'x86_64_defconfig+preempt_rt+x86-board'
 
 build_configs:
 
@@ -1026,3 +1052,63 @@ build_configs:
     tree: media
     branch: 'fixes'
     variants: *build-variants
+
+  rt-stable_v4.14-rt:
+    tree: rt-stable
+    branch: 'v4.14-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v4.14-rt-next:
+    tree: rt-stable
+    branch: 'v4.14-rt-next'
+    variants: *preempt_rt_variants
+
+  rt-stable_v4.19-rt:
+    tree: rt-stable
+    branch: 'v4.19-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v4.19-rt-next:
+    tree: rt-stable
+    branch: 'v4.19-rt-next'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.4-rt:
+    tree: rt-stable
+    branch: 'v5.4-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.4-rt-next:
+    tree: rt-stable
+    branch: 'v5.4-rt-next'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.10-rt:
+    tree: rt-stable
+    branch: 'v5.10-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.10-rt-next:
+    tree: rt-stable
+    branch: 'v5.10-rt-next'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.15-rt:
+    tree: rt-stable
+    branch: 'v5.15-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v5.15-rt-next:
+    tree: rt-stable
+    branch: 'v5.15-rt-next'
+    variants: *preempt_rt_variants
+
+  rt-stable_v6.1-rt:
+    tree: rt-stable
+    branch: 'v6.1-rt'
+    variants: *preempt_rt_variants
+
+  rt-stable_v6.1-rt-next:
+    tree: rt-stable
+    branch: 'v6.1-rt-next'
+    variants: *preempt_rt_variants