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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| package http | ||
|
|
||
| import ( | ||
| "fmt" | ||
| ) | ||
|
|
||
| type bearerAuthorizationHeader struct { | ||
| token string | ||
| } | ||
|
|
||
| func NewBearerAuthorizationHeader(t string) AuthorizationHeaderGenerator { | ||
| return &bearerAuthorizationHeader{ | ||
| token: t, | ||
| } | ||
| } | ||
|
|
||
| func (h *bearerAuthorizationHeader) Generate() (AuthorizationHeader, error) { | ||
| return NewAuthorizationHeaderView(fmt.Sprintf("Bearer %s", h.token)), nil | ||
| } |
217 changes: 217 additions & 0 deletions
217
internal/executors/kubernetes/kubernetes_api_request.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,217 @@ | ||
| package kubernetes | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "strings" | ||
|
|
||
| pb "github.com/SAP/remote-work-processor/build/proto/generated" | ||
| "github.com/SAP/remote-work-processor/internal/cache" | ||
| "github.com/SAP/remote-work-processor/internal/executors" | ||
| "github.com/SAP/remote-work-processor/internal/executors/http" | ||
|
|
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| "k8s.io/client-go/rest" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| ) | ||
|
|
||
| const ( | ||
| API_VERSION string = "apiVersion" | ||
| NAMESPACE string = "namespace" | ||
| RESOURCE_TYPE string = "resourceType" | ||
| RESOURCE_NAME string = "resourceName" | ||
| PATH string = "path" | ||
| QUERY string = "query" | ||
| SHOULD_USE_LOCAL_DATA string = "shouldUseLocalData" | ||
| KUBECONFIG string = "kubeconfig" | ||
| CERT_AUTHORITY_DATA string = "certificateAuthorityData" | ||
| TOKEN string = "token" | ||
|
|
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| RESPONSE_BODY string = "body" | ||
| RESPONSE_STATUS string = "status" | ||
|
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| USER string = "user" | ||
| PASSWORD string = "password" | ||
| AUTHORIZATION_HEADER string = "authorizationHeader" | ||
| SERVER string = "server" | ||
| URL string = "url" | ||
| TRUSTED_CERTS string = "trustedCerts" | ||
|
|
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| API_V1 string = "v1" | ||
| ) | ||
|
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| var API_V1_RESOURCE_TYPES = map[string]bool{"componentstatuses": true, "configmaps": true, "endpoints": true, "events": true, "limitranges": true, "namespaces": true, "persistentvolumeclaims": true, "pods": true, "podtemplates": true, "replicationcontrollers": true, "resourcequotas": true, "secrets": true, "serviceaccounts": true, "services": true, "nodes": true, "persistentvolumes": true} | ||
|
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| type KubernetesApiRequestExecutor struct { | ||
| executors.Executor | ||
| httpExecutor http.HttpRequestExecutor | ||
| } | ||
|
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| func (e *KubernetesApiRequestExecutor) Execute(ctx executors.ExecutorContext) *executors.ExecutorResult { | ||
| config, err := buildConfig(ctx) | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| if shouldUseKubeconfig(ctx) && config == nil { | ||
| return executors.NewExecutorResult( | ||
| executors.Status(pb.TaskExecutionResponseMessage_TASK_STATE_FAILED_NON_RETRYABLE), | ||
| executors.ErrorString("Kubeconfig needed but could not be resolved"), | ||
| ) | ||
| } | ||
|
|
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| input := ctx.GetInput() | ||
|
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| prepareBasicAuth(ctx, input, config) | ||
| prepareToken(ctx, config, input) | ||
| prepareUrl(ctx, config, input) | ||
| prepareTrustedCerts(ctx, config, input) | ||
|
|
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| return buildOutput(e.httpExecutor.Execute(ctx)) | ||
| } | ||
|
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| func buildConfig(ctx executors.ExecutorContext) (*rest.Config, *executors.ExecutorResult) { | ||
| useLocalData, err := ctx.GetBoolean(SHOULD_USE_LOCAL_DATA) | ||
| // useLocalData = true | ||
|
|
||
| if err != nil { | ||
| return nil, nonRetriableExecutionResult(err) | ||
| } | ||
|
|
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| if useLocalData { | ||
| return getLocalKubeConfig(), nil | ||
| } else { | ||
| return buildProvidedKubeConfig(ctx) | ||
| } | ||
| } | ||
|
|
||
| func getLocalKubeConfig() *rest.Config { | ||
| rules := clientcmd.NewDefaultClientConfigLoadingRules() | ||
| overrides := &clientcmd.ConfigOverrides{} | ||
|
|
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| kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(rules, overrides) | ||
|
|
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| config, err := kubeConfig.ClientConfig() | ||
| if err != nil { | ||
| os.Exit(1) | ||
| } | ||
|
|
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| return config | ||
| } | ||
|
|
||
| func buildProvidedKubeConfig(ctx executors.ExecutorContext) (*rest.Config, *executors.ExecutorResult) { | ||
| if ctx.GetString(KUBECONFIG) == "" { | ||
| return nil, nil | ||
| } | ||
|
|
||
| kubeconfig, err := clientcmd.NewClientConfigFromBytes([]byte(ctx.GetString(KUBECONFIG))) | ||
| if err != nil { | ||
| return nil, nonRetriableExecutionResult(err) | ||
| } | ||
|
|
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| config, err := kubeconfig.ClientConfig() | ||
| if err != nil { | ||
| return nil, nonRetriableExecutionResult(err) | ||
| } | ||
|
|
||
| return config, nil | ||
| } | ||
|
|
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| func shouldUseKubeconfig(ctx executors.ExecutorContext) bool { | ||
| return ctx.GetString(SERVER) == "" || | ||
| (ctx.GetString(USER) == "" && ctx.GetString(TOKEN) == "") || | ||
| (ctx.GetString(PASSWORD) == "" && ctx.GetString(TOKEN) == "") | ||
| } | ||
|
|
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| func prepareBasicAuth(ctx executors.ExecutorContext, input cache.MapCache[string, string], config *rest.Config) { | ||
| user := ctx.GetString(USER) | ||
| if user == "" && config != nil { | ||
| user = config.Username | ||
| } | ||
|
|
||
| password := ctx.GetString(PASSWORD) | ||
| if password == "" && config != nil { | ||
| password = config.Password | ||
| } | ||
|
|
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| input.Write(USER, user) | ||
| input.Write(PASSWORD, password) | ||
| } | ||
|
|
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| func prepareToken(ctx executors.ExecutorContext, config *rest.Config, input cache.MapCache[string, string]) { | ||
| token := ctx.GetString(TOKEN) | ||
| if token == "" && config != nil { | ||
| token = config.BearerToken | ||
| } | ||
|
|
||
| if token != "" { | ||
| auth, _ := http.NewBearerAuthorizationHeader(token).Generate() | ||
| input.Write(AUTHORIZATION_HEADER, auth.GetValue()) | ||
| } | ||
| } | ||
|
|
||
| func prepareUrl(ctx executors.ExecutorContext, config *rest.Config, input cache.MapCache[string, string]) { | ||
| server := ctx.GetString(SERVER) | ||
| if server == "" && config != nil { | ||
| server = config.Host | ||
| } | ||
|
|
||
| input.Write(URL, buildUrl(ctx, server)) | ||
| } | ||
|
|
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| func prepareTrustedCerts(ctx executors.ExecutorContext, config *rest.Config, input cache.MapCache[string, string]) { | ||
| trustedCerts := ctx.GetString(CERT_AUTHORITY_DATA) | ||
| if trustedCerts == "" && config != nil { | ||
| trustedCerts = string(config.TLSClientConfig.CAData) | ||
| } | ||
|
|
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| input.Write(TRUSTED_CERTS, trustedCerts) | ||
| } | ||
|
|
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| func buildUrl(ctx executors.ExecutorContext, server string) string { | ||
| var sb strings.Builder | ||
| var apiPathName string | ||
| apiVersion := ctx.GetString(API_VERSION) | ||
|
|
||
| if API_V1_RESOURCE_TYPES[ctx.GetString(RESOURCE_TYPE)] && apiVersion == API_V1 { | ||
| apiPathName = "api" | ||
| } else { | ||
| apiPathName = "apis" | ||
| } | ||
|
|
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| sb.WriteString(fmt.Sprintf("%s/%s/%s", server, apiPathName, apiVersion)) | ||
|
|
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| appendOptional(&sb, ctx, NAMESPACE, "/namespaces/%s") | ||
| appendOptional(&sb, ctx, RESOURCE_TYPE, "/%s") | ||
| appendOptional(&sb, ctx, RESOURCE_NAME, "/%s") | ||
| appendOptional(&sb, ctx, PATH, "%s") | ||
| appendOptional(&sb, ctx, QUERY, "%s") | ||
|
|
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| return sb.String() | ||
| } | ||
|
|
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| func buildOutput(result *executors.ExecutorResult) *executors.ExecutorResult { | ||
| output := make(map[string]any) | ||
| output[RESPONSE_BODY] = result.Output[RESPONSE_BODY] | ||
| output[RESPONSE_STATUS] = result.Output[RESPONSE_STATUS] | ||
|
|
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| return executors.NewExecutorResult( | ||
| executors.Output(output), | ||
| executors.Status(result.Status), | ||
| executors.ErrorString(result.Error), | ||
| ) | ||
| } | ||
|
|
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| func appendOptional(sb *strings.Builder, ctx executors.ExecutorContext, key string, valueFormat string) { | ||
| value := ctx.GetString(key) | ||
| if ctx.GetString(key) != "" { | ||
| sb.Write([]byte(fmt.Sprintf(valueFormat, value))) | ||
| } | ||
| } | ||
|
|
||
| func nonRetriableExecutionResult(err error) *executors.ExecutorResult { | ||
| return executors.NewExecutorResult( | ||
| executors.Status(pb.TaskExecutionResponseMessage_TASK_STATE_FAILED_NON_RETRYABLE), | ||
| executors.Error(err), | ||
| ) | ||
| } |