Copy cmd from container-config

This change copies the code from container-config/cmd to
tools/container. This allows the code to be built and
added to the container image without additional refactoring.

As the configuration utilities are incorporated into the cmds
of the nvidia-container-toolkit, the code will be moved from tools.

Files copied from:

383587f766

Signed-off-by: Evan Lezar <elezar@nvidia.com>

tools/container/containerd/containerd_test.go

@@ -0,0 +1,106 @@
+/**
+# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+*/
+
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestOptions(t *testing.T) {
+	testCases := []struct {
+		options                 options
+		expectedDefaultRuntime  string
+		expectedRuntimeBinaries map[string]string
+	}{
+		{
+			expectedRuntimeBinaries: map[string]string{
+				"nvidia":              "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: true,
+			},
+			expectedDefaultRuntime: "nvidia",
+			expectedRuntimeBinaries: map[string]string{
+				"nvidia":              "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: true,
+				runtimeClass: "nvidia",
+			},
+			expectedDefaultRuntime: "nvidia",
+			expectedRuntimeBinaries: map[string]string{
+				"nvidia":              "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: true,
+				runtimeClass: "NAME",
+			},
+			expectedDefaultRuntime: "NAME",
+			expectedRuntimeBinaries: map[string]string{
+				"NAME":                "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: false,
+				runtimeClass: "NAME",
+			},
+			expectedRuntimeBinaries: map[string]string{
+				"NAME":                "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: true,
+				runtimeClass: "nvidia-experimental",
+			},
+			expectedDefaultRuntime: "nvidia-experimental",
+			expectedRuntimeBinaries: map[string]string{
+				"nvidia":              "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+		{
+			options: options{
+				setAsDefault: false,
+				runtimeClass: "nvidia-experimental",
+			},
+			expectedRuntimeBinaries: map[string]string{
+				"nvidia":              "nvidia-container-runtime",
+				"nvidia-experimental": "nvidia-container-runtime-experimental",
+			},
+		},
+	}
+
+	for i, tc := range testCases {
+		require.Equal(t, tc.expectedDefaultRuntime, tc.options.getDefaultRuntime(), "%d: %v", i, tc)
+		require.EqualValues(t, tc.expectedRuntimeBinaries, tc.options.getRuntimeBinaries(), "%d: %v", i, tc)
+	}
+}