Add rhel8 to supported OSs for ARM (it was already in supported OSs for x86_64)

Author: ermanno

cli/src/pcluster/cli/commands/dcv_util.py

@@ -16,6 +16,6 @@ def get_supported_dcv_os(architecture):
     """Return a list of all the operating system supported by DCV."""
     architectures_dict = {
         "x86_64": SUPPORTED_OSES,
-        "arm64": ["ubuntu1804", "alinux2", "centos7"],
+        "arm64": ["ubuntu1804", "alinux2", "centos7", "rhel8"],
     }
     return architectures_dict.get(architecture, [])

cli/tests/pcluster/validators/test_cluster_validators.py

@@ -1305,7 +1305,7 @@ def test_shared_storage_mount_dir_validator(mount_dir, expected_message):
         (False, "alinux2", "t2.micro", None, None, None),  # doesn't fail because DCV is disabled
         (True, "ubuntu1804", "m6g.xlarge", None, None, None),
         (True, "alinux2", "m6g.xlarge", None, None, None),
-        (True, "rhel8", "m6g.xlarge", None, None, "Please double check the os configuration"),
+        (True, "rhel8", "m6g.xlarge", None, None, None),
         (True, "ubuntu2004", "m6g.xlarge", None, None, "Please double check the os configuration"),
     ],
 )