93 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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   Copyright The containerd Authors.
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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*/
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package client
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import (
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	"bytes"
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	"os"
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	"os/exec"
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	"path/filepath"
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	"runtime"
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	"strings"
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	"testing"
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	"github.com/stretchr/testify/assert"
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	"github.com/stretchr/testify/require"
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)
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func TestMigration(t *testing.T) {
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	currentDefault := filepath.Join(t.TempDir(), "default.toml")
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	defaultContent, err := currentDefaultConfig()
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	require.NoError(t, err)
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	require.NoError(t, os.WriteFile(currentDefault, []byte(defaultContent), 0644))
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	type migrationTest struct {
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		Name     string
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		File     string
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		Migrated string
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	}
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	migrationTests := []migrationTest{
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		{
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			Name:     "CurrentDefault",
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			File:     currentDefault,
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			Migrated: defaultContent,
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		},
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	}
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	// Only run the old version migration tests for the same platform
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	// and build settings the default config was generated for.
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	if runtime.GOOS == "linux" && runtime.GOARCH == "amd64" && strings.Contains(defaultContent, "btrfs") && strings.Contains(defaultContent, "devmapper") {
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		migrationTests = append(migrationTests, []migrationTest{
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			{
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				Name:     "1.6-Default",
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				File:     "testdata/default-1.6.toml",
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				Migrated: defaultContent,
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			},
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			{
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				Name:     "1.7-Default",
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				File:     "testdata/default-1.7.toml",
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				Migrated: defaultContent,
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			},
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		}...)
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	}
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	for _, tc := range migrationTests {
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		tc := tc
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		t.Run(tc.Name, func(t *testing.T) {
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			buf := bytes.NewBuffer(nil)
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			cmd := exec.Command("containerd", "-c", tc.File, "config", "migrate")
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			cmd.Stdout = buf
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			cmd.Stderr = os.Stderr
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			require.NoError(t, cmd.Run())
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			actual := buf.String()
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			assert.Equal(t, tc.Migrated, actual)
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		})
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	}
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}
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func currentDefaultConfig() (string, error) {
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	cmd := exec.Command("containerd", "config", "default")
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	buf := bytes.NewBuffer(nil)
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	cmd.Stdout = buf
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	cmd.Stderr = os.Stderr
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	if err := cmd.Run(); err != nil {
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		return "", err
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	}
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	return buf.String(), nil
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}
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