feat: Flag to pass build platform globally (#3625)

* default target platform support

* useBuildx flag

* check for nil buildconfig

Author: Ashish-devtron

pkg/pipeline/CiConfig.go

@@ -85,6 +85,8 @@ type CiConfig struct {
 	UseBlobStorageConfigInCiWorkflow bool                         `env:"USE_BLOB_STORAGE_CONFIG_IN_CI_WORKFLOW" envDefault:"true"`
 	BaseLogLocationPath              string                       `env:"BASE_LOG_LOCATION_PATH" envDefault:"/home/devtron/"`
 	InAppLoggingEnabled              bool                         `env:"IN_APP_LOGGING_ENABLED" envDefault:"false"`
+	DefaultTargetPlatform            string                       `env:"DEFAULT_TARGET_PLATFORM" envDefault:""`
+	UseBuildx                        bool                         `env:"USE_BUILDX" envDefault:"false"`
 	ClusterConfig                    *rest.Config
 	NodeLabel                        map[string]string
 	EnableBuildContext               bool `env:"ENABLE_BUILD_CONTEXT" envDefault:"false"`

pkg/pipeline/CiService.go

@@ -461,6 +461,15 @@ func (impl *CiServiceImpl) buildWfRequestForCiPipeline(pipeline *pipelineConfig.
 		buildPackConfig := ciBuildConfigBean.BuildPackConfig
 		checkoutPath = filepath.Join(checkoutPath, buildPackConfig.ProjectPath)
 	}
+
+	defaultTargetPlatform := impl.ciConfig.DefaultTargetPlatform
+	useBuildx := impl.ciConfig.UseBuildx
+
+	if ciBuildConfigBean.DockerBuildConfig != nil && ciBuildConfigBean.DockerBuildConfig.TargetPlatform == "" && useBuildx {
+		ciBuildConfigBean.DockerBuildConfig.TargetPlatform = defaultTargetPlatform
+		ciBuildConfigBean.DockerBuildConfig.UseBuildx = useBuildx
+	}
+
 	workflowRequest := &WorkflowRequest{
 		WorkflowNamePrefix:         strconv.Itoa(savedWf.Id) + "-" + savedWf.Name,
 		PipelineName:               pipeline.Name,

pkg/pipeline/bean/CiBuildConfig.go

@@ -35,6 +35,7 @@ type DockerBuildConfig struct {
 	LanguageFramework  string            `json:"languageFramework,omitempty"`
 	DockerBuildOptions map[string]string `json:"dockerBuildOptions,omitempty"`
 	BuildContext       string            `json:"buildContext,omitempty"`
+	UseBuildx          bool              `json:"useBuildx"`
 }
 
 type BuildPackConfig struct {