Adds 1.27.2 rock

Adds a rock for the mentioned version. Updated the rockcraft.yaml file
paths. Updated sanity tests to include both rock versions.

1.27.2/rockcraft.yaml

@@ -0,0 +1,37 @@
+name: cluster-autoscaler
+summary: ROCK for the cluster-autoscaler Project.
+description: This ROCK is a drop-in replacement for the autoscaling/cluster-autoscaler image.
+version: "1.27.2"
+license: Apache-2.0
+
+base: bare
+build-base: [email protected]
+platforms:
+  amd64:
+  arm64:
+
+entrypoint-service: cluster-autoscaler
+services:
+  cluster-autoscaler:
+    override: replace
+    summary: "cluster-autoscaler service"
+    startup: enabled
+    command: "/cluster-autoscaler [ --help ]"
+    on-failure: shutdown
+
+parts:
+  cluster-autoscaler:
+    plugin: nil
+    source: https://github.com/kubernetes/autoscaler.git
+    source-type: git
+    source-tag: cluster-autoscaler-${CRAFT_PROJECT_VERSION}
+    source-depth: 1
+    build-snaps:
+      - go/1.20/stable
+    override-build: |
+      cd cluster-autoscaler
+      make build-arch-${CRAFT_PLATFORM}
+      cp cluster-autoscaler-${CRAFT_PLATFORM} ${CRAFT_PART_INSTALL}/cluster-autoscaler
+    prime:
+      - cluster-autoscaler
+

tests/requirements-test.txt

@@ -2,3 +2,4 @@ coverage[toml]==7.2.5
 pytest==7.3.1
 PyYAML==6.0.1
 tenacity==8.2.3
+git+https://github.com/canonical/k8s-test-harness.git@main

tests/sanity/test_rock.py

@@ -2,19 +2,30 @@
 # Copyright 2024 Canonical, Ltd.
 #
 
-import os
 import subprocess
 
+from k8s_test_harness.util import env_util
+
+
+def _test_sanity(image_version):
+    rock = env_util.get_build_meta_info_for_rock_version(
+        "cluster-autoscaler", image_version, "amd64"
+    )
+    image = rock.image
 
-def test_sanity():
-    image_variable = "ROCK_CLUSTER_AUTOSCALER"
     entrypoint = "/cluster-autoscaler"
-    image = os.getenv(image_variable)
-    assert image is not None, f"${image_variable} is not set"
     # assert we have the expected files
     docker_run = subprocess.run(
         ["docker", "run", "--rm", "--entrypoint", entrypoint, image, "--help"],
         capture_output=True,
         text=True,
     )
     assert "Usage of /cluster-autoscaler:" in docker_run.stderr
+
+
+def test_cluster_autoscaler_1_24_0():
+    _test_sanity("1.24.0")
+
+
+def test_cluster_autoscaler_1_27_2():
+    _test_sanity("1.27.2")