Feat: New Parser for 'dotnet --version' Command for Containers (#3581)

* Feat: New Parser for 'dotnet --version' Command Signed-off-by: Xinting Li <[email protected]> * Update spec * Fix Parser Name * Update Doc string * Update doc title * Add doctest Signed-off-by: Xinting Li <[email protected]>
RedHatInsights · Nov 9, 2022 · 3ef1b48 · 3ef1b48
1 parent f610348
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diff --git a/insights/parsers/dotnet.py b/insights/parsers/dotnet.py
@@ -2,13 +2,19 @@
 DotNet- Comand ``/usr/bin/dotnet``
 ==================================
 
-The parser for ``/usr/bin/dotnet --version`` is included in this module..
+The parsers related ``/usr/bin/dotnet --version`` is included in this module.
 
+DotNetVersion - command ``dotnet --version``
+--------------------------------------------
+
+ContainerDotNetVersion - command ``dotnet --version`` for containers
+--------------------------------------------------------------------
 """
 
 from insights import parser, CommandParser
 from insights.parsers import SkipException, ParseException
 from insights.specs import Specs
+from insights import ContainerParser
 
 
 @parser(Specs.dotnet_version)
@@ -44,3 +50,33 @@ def parse_content(self, content):
 
         if self.major is None:
             raise ParseException("Unrecognized version: {0}", self.raw)
+
+
+@parser(Specs.container_dotnet_version)
+class ContainerDotNetVersion(ContainerParser, DotNetVersion):
+    """
+    Parses the output of the ``/usr/bin/dotnet --version`` command of the running
+    containers which are based on RHEL images.
+
+    Sample output::
+
+        3.1.108
+
+    Examples:
+        >>> type(con_dotnet_ver)
+        <class 'insights.parsers.dotnet.ContainerDotNetVersion'>
+        >>> con_dotnet_ver.container_id
+        'cc2883a1a369'
+        >>> con_dotnet_ver.image
+        'quay.io/rhel8'
+        >>> con_dotnet_ver.engine
+        'podman'
+        >>> con_dotnet_ver.major
+        3
+        >>> con_dotnet_ver.minor
+        1
+        >>> con_dotnet_ver.raw
+        '3.1.108'
+    """
+
+    pass
diff --git a/insights/specs/__init__.py b/insights/specs/__init__.py
@@ -791,6 +791,7 @@ class Specs(SpecSet):
     zipl_conf = RegistryPoint()
 
     # container_specs
+    container_dotnet_version = RegistryPoint(multi_output=True)
     container_redhat_release = RegistryPoint(multi_output=True)
     container_nginx_conf = RegistryPoint(multi_output=True)
     container_installed_rpms = RegistryPoint(multi_output=True)

diff --git a/insights/specs/default.py b/insights/specs/default.py
@@ -674,6 +674,7 @@ class DefaultSpecs(Specs):
     zipl_conf = simple_file("/etc/zipl.conf")
 
     # Container collection specs
+    container_dotnet_version = container_execute(running_rhel_containers, "/usr/bin/dotnet --version")
     container_installed_rpms = container_execute(running_rhel_containers, "rpm -qa --qf '%s'" % _rpm_format, context=HostContext, signum=signal.SIGTERM)
     container_nginx_conf = container_collect(container_nginx_conf_ds)
     container_redhat_release = container_collect(running_rhel_containers, "/etc/redhat-release")

diff --git a/insights/tests/parsers/test_dotnet.py b/insights/tests/parsers/test_dotnet.py
@@ -3,7 +3,7 @@
 from insights.parsers import dotnet
 from insights.core.plugins import ContentException
 from insights.parsers import SkipException, ParseException
-from insights.parsers.dotnet import DotNetVersion
+from insights.parsers.dotnet import DotNetVersion, ContainerDotNetVersion
 from insights.tests import context_wrap
 
 dotnet_version_1 = "3.1.108"
@@ -45,9 +45,47 @@ def test_dotnet_version_ab():
         assert ret is None
 
 
+def test_container_dotnet_version():
+    ret = ContainerDotNetVersion(
+        context_wrap(
+            dotnet_version_1,
+            container_id='cc2883a1a369',
+            image='quay.io/rhel8',
+            engine='podman'
+        )
+    )
+    assert ret.major == 3
+    assert ret.minor == 1
+    assert ret.raw == dotnet_version_1
+    assert ret.image == "quay.io/rhel8"
+    assert ret.engine == "podman"
+    assert ret.container_id == "cc2883a1a369"
+
+
+def test_container_dotnet_version_error():
+    with pytest.raises(ContentException):
+        ret = ContainerDotNetVersion(
+            context_wrap(
+                dotnet_version_3,
+                container_id='cc2883a1a369',
+                image='quay.io/rhel8',
+                engine='podman'
+            )
+        )
+        assert ret is None
+
+
 def test_doc_examples():
     env = {
-        'dotnet_ver': DotNetVersion(context_wrap(dotnet_version_1))
+        'dotnet_ver': DotNetVersion(context_wrap(dotnet_version_1)),
+        'con_dotnet_ver': ContainerDotNetVersion(
+            context_wrap(
+                dotnet_version_1,
+                container_id='cc2883a1a369',
+                image='quay.io/rhel8',
+                engine='podman'
+            )
+        )
     }
     failed, total = doctest.testmod(dotnet, globs=env)
     assert failed == 0