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pipeline.go
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pipeline.go
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package pipeline
import (
"strings"
"encoding/json"
"errors"
"fmt"
"github.com/rancher/norman/api/access"
"github.com/rancher/norman/api/handler"
"github.com/rancher/norman/httperror"
"github.com/rancher/norman/types"
"github.com/rancher/norman/types/convert"
"github.com/rancher/rancher/pkg/controllers/user/pipeline/utils"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/client/management/v3"
"github.com/robfig/cron"
"github.com/sirupsen/logrus"
"io/ioutil"
"net/http"
)
type Handler struct {
Pipelines v3.PipelineInterface
PipelineLister v3.PipelineLister
PipelineExecutions v3.PipelineExecutionInterface
}
func Formatter(apiContext *types.APIContext, resource *types.RawResource) {
resource.AddAction(apiContext, "activate")
resource.AddAction(apiContext, "deactivate")
resource.AddAction(apiContext, "run")
}
func Validator(apiContext *types.APIContext, schema *types.Schema, data map[string]interface{}) error {
pipelineSpec := v3.PipelineSpec{}
if err := convert.ToObj(data, &pipelineSpec); err != nil {
return httperror.NewAPIError(httperror.InvalidBodyContent, err.Error())
}
if !validSourceCodeConfig(pipelineSpec) {
return httperror.NewAPIError(httperror.InvalidBodyContent,
"invalid pipeline definition, expected sourceCode step at the start")
}
if pipelineSpec.TriggerCronExpression != "" {
sourceCodeConfig := pipelineSpec.Stages[0].Steps[0].SourceCodeConfig
if sourceCodeConfig.BranchCondition == "all" || sourceCodeConfig.BranchCondition == "except" {
return httperror.NewAPIError(httperror.InvalidBodyContent,
"cron trigger only works for only branch option")
}
_, err := cron.ParseStandard(pipelineSpec.TriggerCronExpression)
if err != nil {
return httperror.NewAPIError(httperror.InvalidBodyContent,
"error parse cron trigger")
}
}
return nil
}
func (h *Handler) CreateHandler(apiContext *types.APIContext, next types.RequestHandler) error {
//update hooks endpoint for webhook
if err := utils.UpdateEndpoint(apiContext.URLBuilder.Current()); err != nil {
return err
}
return handler.CreateHandler(apiContext, next)
}
func (h *Handler) UpdateHandler(apiContext *types.APIContext, next types.RequestHandler) error {
//update hooks endpoint for webhook
if err := utils.UpdateEndpoint(apiContext.URLBuilder.Current()); err != nil {
return err
}
return handler.UpdateHandler(apiContext, next)
}
func (h *Handler) ActionHandler(actionName string, action *types.Action, apiContext *types.APIContext) error {
logrus.Debugf("do pipeline action:%s", actionName)
switch actionName {
case "activate":
return h.changeState(apiContext, "inactive", "active")
case "deactivate":
return h.changeState(apiContext, "active", "inactive")
case "run":
return h.run(apiContext)
}
return httperror.NewAPIError(httperror.InvalidAction, "unsupported action")
}
func (h *Handler) changeState(apiContext *types.APIContext, curState, newState string) error {
parts := strings.Split(apiContext.ID, ":")
ns := parts[0]
name := parts[1]
pipeline, err := h.PipelineLister.Get(ns, name)
if err != nil {
return err
}
if pipeline.Status.PipelineState == curState {
pipeline.Status.PipelineState = newState
if _, err = h.Pipelines.Update(pipeline); err != nil {
return err
}
} else {
return fmt.Errorf("Error resource is not %s", curState)
}
data := map[string]interface{}{}
if err := access.ByID(apiContext, apiContext.Version, apiContext.Type, apiContext.ID, &data); err != nil {
return err
}
apiContext.WriteResponse(http.StatusOK, data)
return nil
}
func (h *Handler) run(apiContext *types.APIContext) error {
parts := strings.Split(apiContext.ID, ":")
ns := parts[0]
name := parts[1]
pipeline, err := h.PipelineLister.Get(ns, name)
if err != nil {
return err
}
runPipelineInput := v3.RunPipelineInput{}
requestBytes, err := ioutil.ReadAll(apiContext.Request.Body)
if err != nil {
return err
}
if string(requestBytes) != "" {
if err := json.Unmarshal(requestBytes, &runPipelineInput); err != nil {
return err
}
}
if !validSourceCodeConfig(pipeline.Spec) {
return errors.New("Error invalid pipeline definition")
}
branch := runPipelineInput.Branch
branchCondition := pipeline.Spec.Stages[0].Steps[0].SourceCodeConfig.BranchCondition
if branchCondition == "except" || branchCondition == "all" {
if branch == "" {
return httperror.NewAPIError(httperror.InvalidBodyContent, "Error branch is not specified for the pipeline to run")
}
} else {
branch = ""
}
userName := apiContext.Request.Header.Get("Impersonate-User")
execution, err := utils.GenerateExecution(h.Pipelines, h.PipelineExecutions, pipeline, utils.TriggerTypeUser, userName, runPipelineInput.Branch)
if err != nil {
return err
}
data := map[string]interface{}{}
if err := access.ByID(apiContext, apiContext.Version, client.PipelineExecutionType, ns+":"+execution.Name, &data); err != nil {
return err
}
apiContext.WriteResponse(http.StatusOK, data)
return err
}
func validSourceCodeConfig(spec v3.PipelineSpec) bool {
if len(spec.Stages) < 1 ||
len(spec.Stages[0].Steps) < 1 ||
spec.Stages[0].Steps[0].SourceCodeConfig == nil {
return false
}
return true
}