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runs.go
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runs.go
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package api
import (
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/CloudCom/firego"
"github.com/airware/vili/docker"
"github.com/airware/vili/errors"
"github.com/airware/vili/firebase"
"github.com/airware/vili/log"
"github.com/airware/vili/server"
"github.com/airware/vili/session"
"github.com/airware/vili/util"
"gopkg.in/labstack/echo.v1"
)
// Run represents a single run of an image for any job
type Run struct {
ID string `json:"id"`
Branch string `json:"branch"`
Tag string `json:"tag"`
Time time.Time `json:"time"`
Username string `json:"username"`
State string `json:"state"`
Clock *Clock `json:"clock"`
UID string `json:"uid"`
}
const (
runActionStart = "start"
runActionTerminate = "terminate"
)
const (
runStateNew = "new"
runStateRunning = "running"
runStateTerminating = "terminating"
runStateTerminated = "terminated"
runStateCompleted = "completed"
runStateFailed = "failed"
)
func runCreateHandler(c *echo.Context) error {
env := c.Param("env")
job := c.Param("job")
run := &Run{}
if err := json.NewDecoder(c.Request().Body).Decode(run); err != nil {
return err
}
if run.Tag == "" {
return server.ErrorResponse(c, errors.BadRequestError("Request missing tag"))
}
err := run.Init(
env,
job,
c.Get("user").(*session.User).Username,
c.Request().URL.Query().Get("trigger") != "",
)
if err != nil {
switch e := err.(type) {
case RunInitError:
return server.ErrorResponse(c, errors.BadRequestError(e.Error()))
default:
return e
}
}
c.JSON(http.StatusOK, run)
return nil
}
func runActionHandler(c *echo.Context) error {
env := c.Param("env")
job := c.Param("job")
runID := c.Param("run")
action := c.Param("action")
run := &Run{}
if err := runDB(env, job, runID).Value(run); err != nil {
return err
}
if run.ID == "" {
return server.ErrorResponse(c, errors.NotFoundError("Run not found"))
}
log.Info(run.ID)
log.Info(run.Clock)
runner, err := makeRunner(env, job, run)
if err != nil {
return err
}
switch action {
case runActionStart:
err = runner.start()
case runActionTerminate:
err = runner.terminate()
default:
return server.ErrorResponse(c, errors.NotFoundError(fmt.Sprintf("Action %s not found", action)))
}
if err != nil {
return err
}
return c.NoContent(http.StatusNoContent)
}
// utils
// Init initializes a job run, checks to make sure it is valid, and writes the run
// data to firebase
func (r *Run) Init(env, job, username string, trigger bool) error {
r.ID = util.RandLowercaseString(16)
r.Time = time.Now()
r.Username = username
r.State = runStateNew
digest, err := docker.GetTag(job, r.Branch, r.Tag)
if err != nil {
return err
}
if digest == "" {
return RunInitError{
message: fmt.Sprintf("Tag %s not found for job %s", r.Tag, job),
}
}
if err = runDB(env, job, r.ID).Set(r); err != nil {
return err
}
runner, err := makeRunner(env, job, r)
if err != nil {
return err
}
runner.addMessage(fmt.Sprintf("Job run for tag %s created by %s", r.Tag, r.Username), "debug")
if trigger {
if err := runner.start(); err != nil {
return err
}
}
return nil
}
func runDB(env, job, runID string) *firego.Firebase {
return firebase.Database().Child(env).Child("jobs").Child(job).Child("runs").Child(runID)
}
// RunInitError is raised if there is a problem initializing a run
type RunInitError struct {
message string
}
func (e RunInitError) Error() string {
return e.message
}