Merge pull request #8094 from rhatdan/cidfile

The cidfile should be created when the container is created

cmd/podman/containers/create.go

@@ -15,11 +15,9 @@ import (
 	"github.com/containers/podman/v2/cmd/podman/utils"
 	"github.com/containers/podman/v2/libpod/define"
 	"github.com/containers/podman/v2/pkg/domain/entities"
-	"github.com/containers/podman/v2/pkg/errorhandling"
 	"github.com/containers/podman/v2/pkg/specgen"
 	"github.com/containers/podman/v2/pkg/util"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 )
@@ -94,15 +92,6 @@ func create(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	cidFile, err := openCidFile(cliVals.CIDFile)
-	if err != nil {
-		return err
-	}
-
-	if cidFile != nil {
-		defer errorhandling.CloseQuiet(cidFile)
-		defer errorhandling.SyncQuiet(cidFile)
-	}
 
 	if err := createInit(cmd); err != nil {
 		return err
@@ -139,10 +128,9 @@ func create(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	if cidFile != nil {
+	if cliVals.CIDFile != "" {
-		_, err = cidFile.WriteString(report.Id)
+		if err := util.CreateCidFile(cliVals.CIDFile, report.Id); err != nil {
-		if err != nil {
+			return err
-			logrus.Error(err)
 		}
 	}
 
@@ -269,20 +257,6 @@ func pullImage(imageName string) (string, error) {
 	return imageName, nil
 }
 
-func openCidFile(cidfile string) (*os.File, error) {
-	if cidfile == "" {
-		return nil, nil
-	}
-	cidFile, err := util.OpenExclusiveFile(cidfile)
-	if err != nil && os.IsExist(err) {
-		return nil, errors.Errorf("container id file exists. Ensure another container is not using it or delete %s", cidfile)
-	}
-	if err != nil {
-		return nil, errors.Errorf("error opening cidfile %s", cidfile)
-	}
-	return cidFile, nil
-}
-
 // createPodIfNecessary automatically creates a pod when requested.  if the pod name
 // has the form new:ID, the pod ID is created and the name in the spec generator is replaced
 // with ID.

cmd/podman/containers/run.go

@@ -111,15 +111,8 @@ func run(cmd *cobra.Command, args []string) error {
 			return errors.Wrapf(err, "error checking authfile path %s", af)
 		}
 	}
-	cidFile, err := openCidFile(cliVals.CIDFile)
-	if err != nil {
-		return err
-	}
 
-	if cidFile != nil {
+	runOpts.CIDFile = cliVals.CIDFile
-		defer errorhandling.CloseQuiet(cidFile)
-		defer errorhandling.SyncQuiet(cidFile)
-	}
 	runOpts.Rm = cliVals.Rm
 	if err := createInit(cmd); err != nil {
 		return err
@@ -193,12 +186,6 @@ func run(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	if cidFile != nil {
-		_, err = cidFile.WriteString(report.Id)
-		if err != nil {
-			logrus.Error(err)
-		}
-	}
 
 	if runOpts.Detach {
 		fmt.Println(report.Id)

pkg/domain/entities/containers.go

@@ -294,6 +294,7 @@ type ContainerListOptions struct {
 // ContainerRunOptions describes the options needed
 // to run a container from the CLI
 type ContainerRunOptions struct {
+	CIDFile      string
 	Detach       bool
 	DetachKeys   string
 	ErrorStream  *os.File

pkg/domain/infra/abi/containers.go

@@ -29,6 +29,7 @@ import (
 	"github.com/containers/podman/v2/pkg/signal"
 	"github.com/containers/podman/v2/pkg/specgen"
 	"github.com/containers/podman/v2/pkg/specgen/generate"
+	"github.com/containers/podman/v2/pkg/util"
 	"github.com/containers/storage"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -846,6 +847,12 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta
 		return nil, err
 	}
 
+	if opts.CIDFile != "" {
+		if err := util.CreateCidFile(opts.CIDFile, ctr.ID()); err != nil {
+			return nil, err
+		}
+	}
+
 	var joinPod bool
 	if len(ctr.PodID()) > 0 {
 		joinPod = true

pkg/domain/infra/tunnel/containers.go

@@ -21,6 +21,7 @@ import (
 	"github.com/containers/podman/v2/pkg/domain/entities"
 	"github.com/containers/podman/v2/pkg/errorhandling"
 	"github.com/containers/podman/v2/pkg/specgen"
+	"github.com/containers/podman/v2/pkg/util"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )
@@ -558,6 +559,11 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta
 	for _, w := range con.Warnings {
 		fmt.Fprintf(os.Stderr, "%s\n", w)
 	}
+	if opts.CIDFile != "" {
+		if err := util.CreateCidFile(opts.CIDFile, con.ID); err != nil {
+			return nil, err
+		}
+	}
 
 	report := entities.ContainerRunReport{Id: con.ID}
 

pkg/util/utils.go

@@ -638,3 +638,18 @@ func ValidateSysctls(strSlice []string) (map[string]string, error) {
 func DefaultContainerConfig() *config.Config {
 	return containerConfig
 }
+
+func CreateCidFile(cidfile string, id string) error {
+	cidFile, err := OpenExclusiveFile(cidfile)
+	if err != nil {
+		if os.IsExist(err) {
+			return errors.Errorf("container id file exists. Ensure another container is not using it or delete %s", cidfile)
+		}
+		return errors.Errorf("error opening cidfile %s", cidfile)
+	}
+	if _, err = cidFile.WriteString(id); err != nil {
+		logrus.Error(err)
+	}
+	cidFile.Close()
+	return nil
+}