package file import ( "context" "io" "io/ioutil" "os" "path/filepath" "strconv" "testing" "time" "github.com/containous/traefik/v2/pkg/config/dynamic" "github.com/containous/traefik/v2/pkg/safe" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) type ProvideTestCase struct { desc string directoryPaths []string filePath string expectedNumRouter int expectedNumService int expectedNumTLSConf int expectedNumTLSOptions int } func TestTLSContent(t *testing.T) { tempDir := createTempDir(t, "testdir") defer os.RemoveAll(tempDir) fileTLS, err := createTempFile("./fixtures/toml/tls_file.cert", tempDir) require.NoError(t, err) fileConfig, err := ioutil.TempFile(tempDir, "temp*.toml") require.NoError(t, err) content := ` [[tls.certificates]] certFile = "` + fileTLS.Name() + `" keyFile = "` + fileTLS.Name() + `" ` _, err = fileConfig.Write([]byte(content)) require.NoError(t, err) provider := &Provider{} configuration, err := provider.loadFileConfig(context.Background(), fileConfig.Name(), true) require.NoError(t, err) require.Equal(t, "CONTENT", configuration.TLS.Certificates[0].Certificate.CertFile.String()) require.Equal(t, "CONTENT", configuration.TLS.Certificates[0].Certificate.KeyFile.String()) } func TestErrorWhenEmptyConfig(t *testing.T) { provider := &Provider{} configChan := make(chan dynamic.Message) errorChan := make(chan struct{}) go func() { err := provider.Provide(configChan, safe.NewPool(context.Background())) assert.Error(t, err) close(errorChan) }() timeout := time.After(time.Second) select { case <-configChan: t.Fatal("We should not receive config message") case <-timeout: t.Fatal("timeout while waiting for config") case <-errorChan: } } func TestProvideWithoutWatch(t *testing.T) { for _, test := range getTestCases() { t.Run(test.desc+" without watch", func(t *testing.T) { provider, clean := createProvider(t, test, false) defer clean() configChan := make(chan dynamic.Message) provider.DebugLogGeneratedTemplate = true go func() { err := provider.Provide(configChan, safe.NewPool(context.Background())) assert.NoError(t, err) }() timeout := time.After(time.Second) select { case conf := <-configChan: require.NotNil(t, conf.Configuration.HTTP) assert.Len(t, conf.Configuration.HTTP.Services, test.expectedNumService) assert.Len(t, conf.Configuration.HTTP.Routers, test.expectedNumRouter) require.NotNil(t, conf.Configuration.TLS) assert.Len(t, conf.Configuration.TLS.Certificates, test.expectedNumTLSConf) assert.Len(t, conf.Configuration.TLS.Options, test.expectedNumTLSOptions) case <-timeout: t.Errorf("timeout while waiting for config") } }) } } func TestProvideWithWatch(t *testing.T) { for _, test := range getTestCases() { t.Run(test.desc+" with watch", func(t *testing.T) { provider, clean := createProvider(t, test, true) defer clean() configChan := make(chan dynamic.Message) go func() { err := provider.Provide(configChan, safe.NewPool(context.Background())) assert.NoError(t, err) }() timeout := time.After(time.Second) select { case conf := <-configChan: require.NotNil(t, conf.Configuration.HTTP) assert.Len(t, conf.Configuration.HTTP.Services, 0) assert.Len(t, conf.Configuration.HTTP.Routers, 0) require.NotNil(t, conf.Configuration.TLS) assert.Len(t, conf.Configuration.TLS.Certificates, 0) case <-timeout: t.Errorf("timeout while waiting for config") } if len(test.filePath) > 0 { err := copyFile(test.filePath, provider.Filename) require.NoError(t, err) } if len(test.directoryPaths) > 0 { for i, filePath := range test.directoryPaths { err := copyFile(filePath, filepath.Join(provider.Directory, strconv.Itoa(i)+filepath.Ext(filePath))) require.NoError(t, err) } } timeout = time.After(time.Second * 1) var numUpdates, numServices, numRouters, numTLSConfs int for { select { case conf := <-configChan: numUpdates++ numServices = len(conf.Configuration.HTTP.Services) numRouters = len(conf.Configuration.HTTP.Routers) numTLSConfs = len(conf.Configuration.TLS.Certificates) t.Logf("received update #%d: services %d/%d, routers %d/%d, TLS configs %d/%d", numUpdates, numServices, test.expectedNumService, numRouters, test.expectedNumRouter, numTLSConfs, test.expectedNumTLSConf) if numServices == test.expectedNumService && numRouters == test.expectedNumRouter && numTLSConfs == test.expectedNumTLSConf { return } case <-timeout: t.Fatal("timeout while waiting for config") } } }) } } func getTestCases() []ProvideTestCase { return []ProvideTestCase{ { desc: "simple file", filePath: "./fixtures/toml/simple_file_01.toml", expectedNumRouter: 3, expectedNumService: 6, expectedNumTLSConf: 5, }, { desc: "simple file yaml", filePath: "./fixtures/yaml/simple_file_01.yml", expectedNumRouter: 3, expectedNumService: 6, expectedNumTLSConf: 5, }, { desc: "template file", filePath: "./fixtures/toml/template_file.toml", expectedNumRouter: 20, }, { desc: "template file yaml", filePath: "./fixtures/yaml/template_file.yml", expectedNumRouter: 20, }, { desc: "simple directory", directoryPaths: []string{ "./fixtures/toml/dir01_file01.toml", "./fixtures/toml/dir01_file02.toml", "./fixtures/toml/dir01_file03.toml", }, expectedNumRouter: 2, expectedNumService: 3, expectedNumTLSConf: 4, expectedNumTLSOptions: 1, }, { desc: "simple directory yaml", directoryPaths: []string{ "./fixtures/yaml/dir01_file01.yml", "./fixtures/yaml/dir01_file02.yml", "./fixtures/yaml/dir01_file03.yml", }, expectedNumRouter: 2, expectedNumService: 3, expectedNumTLSConf: 4, expectedNumTLSOptions: 1, }, { desc: "template in directory", directoryPaths: []string{ "./fixtures/toml/template_in_directory_file01.toml", "./fixtures/toml/template_in_directory_file02.toml", }, expectedNumRouter: 20, expectedNumService: 20, }, { desc: "template in directory yaml", directoryPaths: []string{ "./fixtures/yaml/template_in_directory_file01.yml", "./fixtures/yaml/template_in_directory_file02.yml", }, expectedNumRouter: 20, expectedNumService: 20, }, } } func createProvider(t *testing.T, test ProvideTestCase, watch bool) (*Provider, func()) { tempDir := createTempDir(t, "testdir") provider := &Provider{} provider.Watch = true if len(test.directoryPaths) > 0 { if !watch { for _, filePath := range test.directoryPaths { var err error _, err = createTempFile(filePath, tempDir) require.NoError(t, err) } } provider.Directory = tempDir } if len(test.filePath) > 0 { var file *os.File if watch { var err error file, err = ioutil.TempFile(tempDir, "temp*"+filepath.Ext(test.filePath)) require.NoError(t, err) } else { var err error file, err = createTempFile(test.filePath, tempDir) require.NoError(t, err) } provider.Filename = file.Name() } return provider, func() { os.RemoveAll(tempDir) } } // createTempDir Helper func createTempDir(t *testing.T, dir string) string { t.Helper() d, err := ioutil.TempDir("", dir) if err != nil { t.Fatal(err) } return d } func copyFile(srcPath, dstPath string) error { dst, err := os.OpenFile(dstPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666) if err != nil { return err } defer dst.Close() src, err := os.Open(srcPath) if err != nil { return err } defer src.Close() _, err = io.Copy(dst, src) return err } func createTempFile(srcPath, tempDir string) (*os.File, error) { file, err := ioutil.TempFile(tempDir, "temp*"+filepath.Ext(srcPath)) if err != nil { return nil, err } defer file.Close() src, err := os.Open(srcPath) if err != nil { return nil, err } defer src.Close() _, err = io.Copy(file, src) return file, err }