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-rw-r--r--cmd/podman/common/ports.go112
-rw-r--r--cmd/podman/common/specgen.go19
-rw-r--r--cmd/podman/containers/list.go7
-rw-r--r--cmd/podman/containers/ps.go24
-rw-r--r--pkg/api/handlers/libpod/containers_create.go3
-rw-r--r--pkg/domain/entities/container_ps.go2
-rw-r--r--pkg/domain/infra/abi/containers.go4
-rw-r--r--pkg/ps/ps.go1
-rw-r--r--pkg/specgen/container_validate.go2
-rw-r--r--pkg/specgen/generate/container.go25
-rw-r--r--pkg/specgen/generate/container_create.go47
-rw-r--r--pkg/specgen/generate/oci.go59
-rw-r--r--pkg/specgen/generate/storage.go303
-rw-r--r--pkg/specgen/specgen.go19
-rw-r--r--test/e2e/ps_test.go2
-rw-r--r--test/e2e/run_volume_test.go8
16 files changed, 451 insertions, 186 deletions
diff --git a/cmd/podman/common/ports.go b/cmd/podman/common/ports.go
index 7e2b1e79d..a96bafabd 100644
--- a/cmd/podman/common/ports.go
+++ b/cmd/podman/common/ports.go
@@ -1,28 +1,11 @@
package common
import (
- "fmt"
- "net"
- "strconv"
-
- "github.com/cri-o/ocicni/pkg/ocicni"
"github.com/docker/go-connections/nat"
"github.com/pkg/errors"
- "github.com/sirupsen/logrus"
)
-// ExposedPorts parses user and image ports and returns binding information
-func ExposedPorts(expose []string, publish []ocicni.PortMapping, publishAll bool, imageExposedPorts map[string]struct{}) ([]ocicni.PortMapping, error) {
- containerPorts := make(map[string]string)
-
- // TODO this needs to be added into a something that
- // has access to an imageengine
- // add expose ports from the image itself
- //for expose := range imageExposedPorts {
- // _, port := nat.SplitProtoPort(expose)
- // containerPorts[port] = ""
- //}
-
+func verifyExpose(expose []string) error {
// add the expose ports from the user (--expose)
// can be single or a range
for _, expose := range expose {
@@ -30,97 +13,10 @@ func ExposedPorts(expose []string, publish []ocicni.PortMapping, publishAll bool
_, port := nat.SplitProtoPort(expose)
//parse the start and end port and create a sequence of ports to expose
//if expose a port, the start and end port are the same
- start, end, err := nat.ParsePortRange(port)
+ _, _, err := nat.ParsePortRange(port)
if err != nil {
- return nil, fmt.Errorf("invalid range format for --expose: %s, error: %s", expose, err)
- }
- for i := start; i <= end; i++ {
- containerPorts[strconv.Itoa(int(i))] = ""
- }
- }
-
- // TODO/FIXME this is hell reencarnated
- // parse user inputted port bindings
- pbPorts, portBindings, err := nat.ParsePortSpecs([]string{})
- if err != nil {
- return nil, err
- }
-
- // delete exposed container ports if being used by -p
- for i := range pbPorts {
- delete(containerPorts, i.Port())
- }
-
- // iterate container ports and make port bindings from them
- if publishAll {
- for e := range containerPorts {
- //support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
- //proto, port := nat.SplitProtoPort(e)
- p, err := nat.NewPort("tcp", e)
- if err != nil {
- return nil, err
- }
- rp, err := getRandomPort()
- if err != nil {
- return nil, err
- }
- logrus.Debug(fmt.Sprintf("Using random host port %d with container port %d", rp, p.Int()))
- portBindings[p] = CreatePortBinding(rp, "")
- }
- }
-
- // We need to see if any host ports are not populated and if so, we need to assign a
- // random port to them.
- for k, pb := range portBindings {
- if pb[0].HostPort == "" {
- hostPort, err := getRandomPort()
- if err != nil {
- return nil, err
- }
- logrus.Debug(fmt.Sprintf("Using random host port %d with container port %s", hostPort, k.Port()))
- pb[0].HostPort = strconv.Itoa(hostPort)
- }
- }
- var pms []ocicni.PortMapping
- for k, v := range portBindings {
- for _, pb := range v {
- hp, err := strconv.Atoi(pb.HostPort)
- if err != nil {
- return nil, err
- }
- pms = append(pms, ocicni.PortMapping{
- HostPort: int32(hp),
- ContainerPort: int32(k.Int()),
- //Protocol: "",
- HostIP: pb.HostIP,
- })
+ return errors.Wrapf(err, "invalid range format for --expose: %s", expose)
}
}
- return pms, nil
-}
-
-func getRandomPort() (int, error) {
- l, err := net.Listen("tcp", ":0")
- if err != nil {
- return 0, errors.Wrapf(err, "unable to get free port")
- }
- defer l.Close()
- _, randomPort, err := net.SplitHostPort(l.Addr().String())
- if err != nil {
- return 0, errors.Wrapf(err, "unable to determine free port")
- }
- rp, err := strconv.Atoi(randomPort)
- if err != nil {
- return 0, errors.Wrapf(err, "unable to convert random port to int")
- }
- return rp, nil
-}
-
-//CreatePortBinding takes port (int) and IP (string) and creates an array of portbinding structs
-func CreatePortBinding(hostPort int, hostIP string) []nat.PortBinding {
- pb := nat.PortBinding{
- HostPort: strconv.Itoa(hostPort),
- }
- pb.HostIP = hostIP
- return []nat.PortBinding{pb}
+ return nil
}
diff --git a/cmd/podman/common/specgen.go b/cmd/podman/common/specgen.go
index ba9022aff..5d5816ea4 100644
--- a/cmd/podman/common/specgen.go
+++ b/cmd/podman/common/specgen.go
@@ -227,11 +227,14 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
}
s.Terminal = c.TTY
- ep, err := ExposedPorts(c.Expose, c.Net.PublishPorts, c.PublishAll, nil)
- if err != nil {
+
+ if err := verifyExpose(c.Expose); err != nil {
return err
}
- s.PortMappings = ep
+ // We are not handling the Expose flag yet.
+ // s.PortsExpose = c.Expose
+ s.PortMappings = c.Net.PublishPorts
+ s.PublishImagePorts = c.PublishAll
s.Pod = c.Pod
for k, v := range map[string]*specgen.Namespace{
@@ -406,13 +409,11 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
s.StaticMAC = c.Net.StaticMAC
s.UseImageHosts = c.Net.NoHosts
- // deferred, must be added on libpod side
- //var ImageVolumes map[string]struct{}
- //if data != nil && c.String("image-volume") != "ignore" {
- // ImageVolumes = data.Config.Volumes
- //}
-
s.ImageVolumeMode = c.ImageVolume
+ if s.ImageVolumeMode == "bind" {
+ s.ImageVolumeMode = "anonymous"
+ }
+
systemd := c.SystemdD == "always"
if !systemd && command != nil {
x, err := strconv.ParseBool(c.SystemdD)
diff --git a/cmd/podman/containers/list.go b/cmd/podman/containers/list.go
index 938fb63d3..b5019ddd2 100644
--- a/cmd/podman/containers/list.go
+++ b/cmd/podman/containers/list.go
@@ -14,7 +14,7 @@ var (
Args: cobra.NoArgs,
Short: "List containers",
Long: "Prints out information about the containers",
- RunE: containers,
+ RunE: ps,
Example: `podman container list -a
podman container list -a --format "{{.ID}} {{.Image}} {{.Labels}} {{.Mounts}}"
podman container list --size --sort names`,
@@ -27,8 +27,5 @@ func init() {
Command: listCmd,
Parent: containerCmd,
})
-}
-
-func containers(cmd *cobra.Command, args []string) error {
- return nil
+ listFlagSet(listCmd.Flags())
}
diff --git a/cmd/podman/containers/ps.go b/cmd/podman/containers/ps.go
index a006e918d..82434e9cc 100644
--- a/cmd/podman/containers/ps.go
+++ b/cmd/podman/containers/ps.go
@@ -18,6 +18,7 @@ import (
"github.com/docker/go-units"
"github.com/pkg/errors"
"github.com/spf13/cobra"
+ "github.com/spf13/pflag"
)
var (
@@ -47,7 +48,10 @@ func init() {
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: psCommand,
})
- flags := psCommand.Flags()
+ listFlagSet(psCommand.Flags())
+}
+
+func listFlagSet(flags *pflag.FlagSet) {
flags.BoolVarP(&listOpts.All, "all", "a", false, "Show all the containers, default is only running containers")
flags.StringSliceVarP(&filters, "filter", "f", []string{}, "Filter output based on conditions given")
flags.StringVar(&listOpts.Format, "format", "", "Pretty-print containers to JSON or using a Go template")
@@ -165,14 +169,14 @@ func ps(cmd *cobra.Command, args []string) error {
responses = append(responses, psReporter{r})
}
- headers, row := createPsOut()
+ headers, format := createPsOut()
if cmd.Flag("format").Changed {
- row = listOpts.Format
- if !strings.HasPrefix(row, "\n") {
- row += "\n"
+ format = listOpts.Format
+ if !strings.HasPrefix(format, "\n") {
+ format += "\n"
}
}
- format := "{{range . }}" + row + "{{end}}"
+ format = "{{range . }}" + format + "{{end}}"
if !listOpts.Quiet && !cmd.Flag("format").Changed {
format = headers + format
}
@@ -247,6 +251,14 @@ type psReporter struct {
entities.ListContainer
}
+// ImageID returns the ID of the container
+func (l psReporter) ImageID() string {
+ if !noTrunc {
+ return l.ListContainer.ImageID[0:12]
+ }
+ return l.ListContainer.ImageID
+}
+
// ID returns the ID of the container
func (l psReporter) ID() string {
if !noTrunc {
diff --git a/pkg/api/handlers/libpod/containers_create.go b/pkg/api/handlers/libpod/containers_create.go
index f64132d55..40b6cacdb 100644
--- a/pkg/api/handlers/libpod/containers_create.go
+++ b/pkg/api/handlers/libpod/containers_create.go
@@ -1,6 +1,7 @@
package libpod
import (
+ "context"
"encoding/json"
"net/http"
@@ -26,7 +27,7 @@ func CreateContainer(w http.ResponseWriter, r *http.Request) {
utils.InternalServerError(w, err)
return
}
- ctr, err := generate.MakeContainer(runtime, &sg)
+ ctr, err := generate.MakeContainer(context.Background(), runtime, &sg)
if err != nil {
utils.InternalServerError(w, err)
return
diff --git a/pkg/domain/entities/container_ps.go b/pkg/domain/entities/container_ps.go
index d5159fb85..fd94d93be 100644
--- a/pkg/domain/entities/container_ps.go
+++ b/pkg/domain/entities/container_ps.go
@@ -25,6 +25,8 @@ type ListContainer struct {
ID string `json:"Id"`
// Container image
Image string
+ // Container image ID
+ ImageID string
// If this container is a Pod infra container
IsInfra bool
// Labels for container
diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go
index e09891760..286d37c34 100644
--- a/pkg/domain/infra/abi/containers.go
+++ b/pkg/domain/infra/abi/containers.go
@@ -492,7 +492,7 @@ func (ic *ContainerEngine) ContainerCreate(ctx context.Context, s *specgen.SpecG
if err := generate.CompleteSpec(ctx, ic.Libpod, s); err != nil {
return nil, err
}
- ctr, err := generate.MakeContainer(ic.Libpod, s)
+ ctr, err := generate.MakeContainer(ctx, ic.Libpod, s)
if err != nil {
return nil, err
}
@@ -680,7 +680,7 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta
if err := generate.CompleteSpec(ctx, ic.Libpod, opts.Spec); err != nil {
return nil, err
}
- ctr, err := generate.MakeContainer(ic.Libpod, opts.Spec)
+ ctr, err := generate.MakeContainer(ctx, ic.Libpod, opts.Spec)
if err != nil {
return nil, err
}
diff --git a/pkg/ps/ps.go b/pkg/ps/ps.go
index d0fef65c8..907063df9 100644
--- a/pkg/ps/ps.go
+++ b/pkg/ps/ps.go
@@ -158,6 +158,7 @@ func ListContainerBatch(rt *libpod.Runtime, ctr *libpod.Container, opts entities
ExitedAt: exitedTime.Unix(),
ID: conConfig.ID,
Image: conConfig.RootfsImageName,
+ ImageID: conConfig.RootfsImageID,
IsInfra: conConfig.IsInfra,
Labels: conConfig.Labels,
Mounts: ctr.UserVolumes(),
diff --git a/pkg/specgen/container_validate.go b/pkg/specgen/container_validate.go
index 87fc59dfe..94e456c52 100644
--- a/pkg/specgen/container_validate.go
+++ b/pkg/specgen/container_validate.go
@@ -14,7 +14,7 @@ var (
// SystemDValues describes the only values that SystemD can be
SystemDValues = []string{"true", "false", "always"}
// ImageVolumeModeValues describes the only values that ImageVolumeMode can be
- ImageVolumeModeValues = []string{"ignore", "tmpfs", "bind"}
+ ImageVolumeModeValues = []string{"ignore", "tmpfs", "anonymous"}
)
func exclusiveOptions(opt1, opt2 string) error {
diff --git a/pkg/specgen/generate/container.go b/pkg/specgen/generate/container.go
index 669b1f05f..b27dd1cc2 100644
--- a/pkg/specgen/generate/container.go
+++ b/pkg/specgen/generate/container.go
@@ -8,13 +8,10 @@ import (
envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/signal"
"github.com/containers/libpod/pkg/specgen"
- "github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func CompleteSpec(ctx context.Context, r *libpod.Runtime, s *specgen.SpecGenerator) error {
- var appendEntryPoint bool
-
// If a rootfs is used, then there is no image data
if s.ContainerStorageConfig.Rootfs != "" {
return nil
@@ -107,28 +104,6 @@ func CompleteSpec(ctx context.Context, r *libpod.Runtime, s *specgen.SpecGenerat
}
s.Annotations = annotations
- // entrypoint
- entrypoint, err := newImage.Entrypoint(ctx)
- if err != nil {
- return err
- }
- if len(s.Entrypoint) < 1 && len(entrypoint) > 0 {
- appendEntryPoint = true
- s.Entrypoint = entrypoint
- }
- command, err := newImage.Cmd(ctx)
- if err != nil {
- return err
- }
- if len(s.Command) < 1 && len(command) > 0 {
- if appendEntryPoint {
- s.Command = entrypoint
- }
- s.Command = append(s.Command, command...)
- }
- if len(s.Command) < 1 && len(s.Entrypoint) < 1 {
- return errors.Errorf("No command provided or as CMD or ENTRYPOINT in this image")
- }
// workdir
workingDir, err := newImage.WorkingDir(ctx)
if err != nil {
diff --git a/pkg/specgen/generate/container_create.go b/pkg/specgen/generate/container_create.go
index 49a717c5d..bb84f0618 100644
--- a/pkg/specgen/generate/container_create.go
+++ b/pkg/specgen/generate/container_create.go
@@ -15,7 +15,7 @@ import (
)
// MakeContainer creates a container based on the SpecGenerator
-func MakeContainer(rt *libpod.Runtime, s *specgen.SpecGenerator) (*libpod.Container, error) {
+func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGenerator) (*libpod.Container, error) {
rtc, err := rt.GetConfig()
if err != nil {
return nil, err
@@ -75,16 +75,8 @@ func MakeContainer(rt *libpod.Runtime, s *specgen.SpecGenerator) (*libpod.Contai
s.CgroupNS = defaultNS
}
- options, err := createContainerOptions(rt, s, pod)
- if err != nil {
- return nil, err
- }
+ options := []libpod.CtrCreateOption{}
- podmanPath, err := os.Executable()
- if err != nil {
- return nil, err
- }
- options = append(options, createExitCommandOption(s, rt.StorageConfig(), rtc, podmanPath))
var newImage *image.Image
if s.Rootfs != "" {
options = append(options, libpod.WithRootFS(s.Rootfs))
@@ -99,14 +91,31 @@ func MakeContainer(rt *libpod.Runtime, s *specgen.SpecGenerator) (*libpod.Contai
return nil, errors.Wrap(err, "invalid config provided")
}
- runtimeSpec, err := SpecGenToOCI(s, rt, newImage)
+ finalMounts, finalVolumes, err := finalizeMounts(ctx, s, rt, rtc, newImage)
+ if err != nil {
+ return nil, err
+ }
+
+ opts, err := createContainerOptions(rt, s, pod, finalVolumes)
+ if err != nil {
+ return nil, err
+ }
+ options = append(options, opts...)
+
+ podmanPath, err := os.Executable()
+ if err != nil {
+ return nil, err
+ }
+ options = append(options, createExitCommandOption(s, rt.StorageConfig(), rtc, podmanPath))
+
+ runtimeSpec, err := SpecGenToOCI(ctx, s, rt, rtc, newImage, finalMounts)
if err != nil {
return nil, err
}
- return rt.NewContainer(context.Background(), runtimeSpec, options...)
+ return rt.NewContainer(ctx, runtimeSpec, options...)
}
-func createContainerOptions(rt *libpod.Runtime, s *specgen.SpecGenerator, pod *libpod.Pod) ([]libpod.CtrCreateOption, error) {
+func createContainerOptions(rt *libpod.Runtime, s *specgen.SpecGenerator, pod *libpod.Pod, volumes []*specgen.NamedVolume) ([]libpod.CtrCreateOption, error) {
var options []libpod.CtrCreateOption
var err error
@@ -133,21 +142,21 @@ func createContainerOptions(rt *libpod.Runtime, s *specgen.SpecGenerator, pod *l
for _, mount := range s.Mounts {
destinations = append(destinations, mount.Destination)
}
- for _, volume := range s.Volumes {
+ for _, volume := range volumes {
destinations = append(destinations, volume.Dest)
}
options = append(options, libpod.WithUserVolumes(destinations))
- if len(s.Volumes) != 0 {
- var volumes []*libpod.ContainerNamedVolume
- for _, v := range s.Volumes {
- volumes = append(volumes, &libpod.ContainerNamedVolume{
+ if len(volumes) != 0 {
+ var vols []*libpod.ContainerNamedVolume
+ for _, v := range volumes {
+ vols = append(vols, &libpod.ContainerNamedVolume{
Name: v.Name,
Dest: v.Dest,
Options: v.Options,
})
}
- options = append(options, libpod.WithNamedVolumes(volumes))
+ options = append(options, libpod.WithNamedVolumes(vols))
}
if len(s.Command) != 0 {
diff --git a/pkg/specgen/generate/oci.go b/pkg/specgen/generate/oci.go
index 8ca95016e..87262684e 100644
--- a/pkg/specgen/generate/oci.go
+++ b/pkg/specgen/generate/oci.go
@@ -1,8 +1,10 @@
package generate
import (
+ "context"
"strings"
+ "github.com/containers/common/pkg/config"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/rootless"
@@ -10,6 +12,7 @@ import (
"github.com/opencontainers/runc/libcontainer/user"
spec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/runtime-tools/generate"
+ "github.com/pkg/errors"
)
func addRlimits(s *specgen.SpecGenerator, g *generate.Generator) error {
@@ -48,7 +51,51 @@ func addRlimits(s *specgen.SpecGenerator, g *generate.Generator) error {
return nil
}
-func SpecGenToOCI(s *specgen.SpecGenerator, rt *libpod.Runtime, newImage *image.Image) (*spec.Spec, error) {
+// Produce the final command for the container.
+func makeCommand(ctx context.Context, s *specgen.SpecGenerator, img *image.Image, rtc *config.Config) ([]string, error) {
+ finalCommand := []string{}
+
+ entrypoint := s.Entrypoint
+ if len(entrypoint) == 0 && img != nil {
+ newEntry, err := img.Entrypoint(ctx)
+ if err != nil {
+ return nil, err
+ }
+ entrypoint = newEntry
+ }
+
+ finalCommand = append(finalCommand, entrypoint...)
+
+ command := s.Command
+ if len(command) == 0 && img != nil {
+ newCmd, err := img.Cmd(ctx)
+ if err != nil {
+ return nil, err
+ }
+ command = newCmd
+ }
+
+ finalCommand = append(finalCommand, command...)
+
+ if len(finalCommand) == 0 {
+ return nil, errors.Errorf("no command or entrypoint provided, and no CMD or ENTRYPOINT from image")
+ }
+
+ if s.Init {
+ initPath := s.InitPath
+ if initPath == "" && rtc != nil {
+ initPath = rtc.Engine.InitPath
+ }
+ if initPath == "" {
+ return nil, errors.Errorf("no path to init binary found but container requested an init")
+ }
+ finalCommand = append([]string{initPath, "--"}, finalCommand...)
+ }
+
+ return finalCommand, nil
+}
+
+func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runtime, rtc *config.Config, newImage *image.Image, mounts []spec.Mount) (*spec.Spec, error) {
var (
inUserNS bool
)
@@ -173,7 +220,13 @@ func SpecGenToOCI(s *specgen.SpecGenerator, rt *libpod.Runtime, newImage *image.
g.AddMount(cgroupMnt)
}
g.SetProcessCwd(s.WorkDir)
- g.SetProcessArgs(s.Command)
+
+ finalCmd, err := makeCommand(ctx, s, newImage, rtc)
+ if err != nil {
+ return nil, err
+ }
+ g.SetProcessArgs(finalCmd)
+
g.SetProcessTerminal(s.Terminal)
for key, val := range s.Annotations {
@@ -227,7 +280,7 @@ func SpecGenToOCI(s *specgen.SpecGenerator, rt *libpod.Runtime, newImage *image.
}
// BIND MOUNTS
- configSpec.Mounts = SupercedeUserMounts(s.Mounts, configSpec.Mounts)
+ configSpec.Mounts = SupercedeUserMounts(mounts, configSpec.Mounts)
// Process mounts to ensure correct options
if err := InitFSMounts(configSpec.Mounts); err != nil {
return nil, err
diff --git a/pkg/specgen/generate/storage.go b/pkg/specgen/generate/storage.go
index 7650e4e9a..241c9adeb 100644
--- a/pkg/specgen/generate/storage.go
+++ b/pkg/specgen/generate/storage.go
@@ -1,12 +1,20 @@
package generate
import (
+ "context"
+ "fmt"
+ "os"
"path"
"path/filepath"
"strings"
+ "github.com/containers/common/pkg/config"
+ "github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/libpod/image"
+ "github.com/containers/libpod/pkg/specgen"
"github.com/containers/libpod/pkg/util"
spec "github.com/opencontainers/runtime-spec/specs-go"
+ "github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
@@ -20,6 +28,301 @@ const (
TypeTmpfs = "tmpfs"
)
+var (
+ errDuplicateDest = errors.Errorf("duplicate mount destination")
+)
+
+// Produce final mounts and named volumes for a container
+func finalizeMounts(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runtime, rtc *config.Config, img *image.Image) ([]spec.Mount, []*specgen.NamedVolume, error) {
+ // Get image volumes
+ baseMounts, baseVolumes, err := getImageVolumes(ctx, img, s)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ // Get volumes-from mounts
+ volFromMounts, volFromVolumes, err := getVolumesFrom(s.VolumesFrom, rt)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ // Supercede from --volumes-from.
+ for dest, mount := range volFromMounts {
+ baseMounts[dest] = mount
+ }
+ for dest, volume := range volFromVolumes {
+ baseVolumes[dest] = volume
+ }
+
+ // Need to make map forms of specgen mounts/volumes.
+ unifiedMounts := map[string]spec.Mount{}
+ unifiedVolumes := map[string]*specgen.NamedVolume{}
+ for _, m := range s.Mounts {
+ if _, ok := unifiedMounts[m.Destination]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, "conflict in specified mounts - multiple mounts at %q", m.Destination)
+ }
+ unifiedMounts[m.Destination] = m
+ }
+ for _, v := range s.Volumes {
+ if _, ok := unifiedVolumes[v.Dest]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, "conflict in specified volumes - multiple volumes at %q", v.Dest)
+ }
+ unifiedVolumes[v.Dest] = v
+ }
+
+ // If requested, add container init binary
+ if s.Init {
+ initPath := s.InitPath
+ if initPath == "" && rtc != nil {
+ initPath = rtc.Engine.InitPath
+ }
+ initMount, err := addContainerInitBinary(s, initPath)
+ if err != nil {
+ return nil, nil, err
+ }
+ if _, ok := unifiedMounts[initMount.Destination]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, "conflict with mount added by --init to %q", initMount.Destination)
+ }
+ unifiedMounts[initMount.Destination] = initMount
+ }
+
+ // Before superseding, we need to find volume mounts which conflict with
+ // named volumes, and vice versa.
+ // We'll delete the conflicts here as we supersede.
+ for dest := range unifiedMounts {
+ if _, ok := baseVolumes[dest]; ok {
+ delete(baseVolumes, dest)
+ }
+ }
+ for dest := range unifiedVolumes {
+ if _, ok := baseMounts[dest]; ok {
+ delete(baseMounts, dest)
+ }
+ }
+
+ // Supersede volumes-from/image volumes with unified volumes from above.
+ // This is an unconditional replacement.
+ for dest, mount := range unifiedMounts {
+ baseMounts[dest] = mount
+ }
+ for dest, volume := range unifiedVolumes {
+ baseVolumes[dest] = volume
+ }
+
+ // TODO: Investigate moving readonlyTmpfs into here. Would be more
+ // correct.
+
+ // Check for conflicts between named volumes and mounts
+ for dest := range baseMounts {
+ if _, ok := baseVolumes[dest]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
+ }
+ }
+ for dest := range baseVolumes {
+ if _, ok := baseMounts[dest]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
+ }
+ }
+ // Final step: maps to arrays
+ finalMounts := make([]spec.Mount, 0, len(baseMounts))
+ for _, mount := range baseMounts {
+ if mount.Type == TypeBind {
+ absSrc, err := filepath.Abs(mount.Source)
+ if err != nil {
+ return nil, nil, errors.Wrapf(err, "error getting absolute path of %s", mount.Source)
+ }
+ mount.Source = absSrc
+ }
+ finalMounts = append(finalMounts, mount)
+ }
+ finalVolumes := make([]*specgen.NamedVolume, 0, len(baseVolumes))
+ for _, volume := range baseVolumes {
+ finalVolumes = append(finalVolumes, volume)
+ }
+
+ return finalMounts, finalVolumes, nil
+}
+
+// Get image volumes from the given image
+func getImageVolumes(ctx context.Context, img *image.Image, s *specgen.SpecGenerator) (map[string]spec.Mount, map[string]*specgen.NamedVolume, error) {
+ mounts := make(map[string]spec.Mount)
+ volumes := make(map[string]*specgen.NamedVolume)
+
+ mode := strings.ToLower(s.ImageVolumeMode)
+
+ // Image may be nil (rootfs in use), or image volume mode may be ignore.
+ if img == nil || mode == "ignore" {
+ return mounts, volumes, nil
+ }
+
+ inspect, err := img.InspectNoSize(ctx)
+ if err != nil {
+ return nil, nil, errors.Wrapf(err, "error inspecting image to get image volumes")
+ }
+ for volume := range inspect.Config.Volumes {
+ logrus.Debugf("Image has volume at %q", volume)
+ cleanDest := filepath.Clean(volume)
+ switch mode {
+ case "", "anonymous":
+ // Anonymous volumes have no name.
+ newVol := new(specgen.NamedVolume)
+ newVol.Dest = cleanDest
+ newVol.Options = []string{"rprivate", "rw", "nodev", "exec"}
+ volumes[cleanDest] = newVol
+ logrus.Debugf("Adding anonymous image volume at %q", cleanDest)
+ case "tmpfs":
+ mount := spec.Mount{
+ Destination: cleanDest,
+ Source: TypeTmpfs,
+ Type: TypeTmpfs,
+ Options: []string{"rprivate", "rw", "nodev", "exec"},
+ }
+ mounts[cleanDest] = mount
+ logrus.Debugf("Adding tmpfs image volume at %q", cleanDest)
+ }
+ }
+
+ return mounts, volumes, nil
+}
+
+func getVolumesFrom(volumesFrom []string, runtime *libpod.Runtime) (map[string]spec.Mount, map[string]*specgen.NamedVolume, error) {
+ finalMounts := make(map[string]spec.Mount)
+ finalNamedVolumes := make(map[string]*specgen.NamedVolume)
+
+ for _, volume := range volumesFrom {
+ var options []string
+
+ splitVol := strings.SplitN(volume, ":", 2)
+ if len(splitVol) == 2 {
+ splitOpts := strings.Split(splitVol[1], ",")
+ for _, opt := range splitOpts {
+ setRORW := false
+ setZ := false
+ switch opt {
+ case "z":
+ if setZ {
+ return nil, nil, errors.Errorf("cannot set :z more than once in mount options")
+ }
+ setZ = true
+ case "ro", "rw":
+ if setRORW {
+ return nil, nil, errors.Errorf("cannot set ro or rw options more than once")
+ }
+ setRORW = true
+ default:
+ return nil, nil, errors.Errorf("invalid option %q specified - volumes from another container can only use z,ro,rw options", opt)
+ }
+ }
+ options = splitOpts
+ }
+
+ ctr, err := runtime.LookupContainer(splitVol[0])
+ if err != nil {
+ return nil, nil, errors.Wrapf(err, "error looking up container %q for volumes-from", splitVol[0])
+ }
+
+ logrus.Debugf("Adding volumes from container %s", ctr.ID())
+
+ // Look up the container's user volumes. This gets us the
+ // destinations of all mounts the user added to the container.
+ userVolumesArr := ctr.UserVolumes()
+
+ // We're going to need to access them a lot, so convert to a map
+ // to reduce looping.
+ // We'll also use the map to indicate if we missed any volumes along the way.
+ userVolumes := make(map[string]bool)
+ for _, dest := range userVolumesArr {
+ userVolumes[dest] = false
+ }
+
+ // Now we get the container's spec and loop through its volumes
+ // and append them in if we can find them.
+ spec := ctr.Spec()
+ if spec == nil {
+ return nil, nil, errors.Errorf("error retrieving container %s spec for volumes-from", ctr.ID())
+ }
+ for _, mnt := range spec.Mounts {
+ if mnt.Type != TypeBind {
+ continue
+ }
+ if _, exists := userVolumes[mnt.Destination]; exists {
+ userVolumes[mnt.Destination] = true
+
+ if len(options) != 0 {
+ mnt.Options = options
+ }
+
+ if _, ok := finalMounts[mnt.Destination]; ok {
+ logrus.Debugf("Overriding mount to %s with new mount from container %s", mnt.Destination, ctr.ID())
+ }
+ finalMounts[mnt.Destination] = mnt
+ }
+ }
+
+ // We're done with the spec mounts. Add named volumes.
+ // Add these unconditionally - none of them are automatically
+ // part of the container, as some spec mounts are.
+ namedVolumes := ctr.NamedVolumes()
+ for _, namedVol := range namedVolumes {
+ if _, exists := userVolumes[namedVol.Dest]; exists {
+ userVolumes[namedVol.Dest] = true
+ }
+
+ if len(options) != 0 {
+ namedVol.Options = options
+ }
+
+ if _, ok := finalMounts[namedVol.Dest]; ok {
+ logrus.Debugf("Overriding named volume mount to %s with new named volume from container %s", namedVol.Dest, ctr.ID())
+ }
+
+ newVol := new(specgen.NamedVolume)
+ newVol.Dest = namedVol.Dest
+ newVol.Options = namedVol.Options
+ newVol.Name = namedVol.Name
+
+ finalNamedVolumes[namedVol.Dest] = newVol
+ }
+
+ // Check if we missed any volumes
+ for volDest, found := range userVolumes {
+ if !found {
+ logrus.Warnf("Unable to match volume %s from container %s for volumes-from", volDest, ctr.ID())
+ }
+ }
+ }
+
+ return finalMounts, finalNamedVolumes, nil
+}
+
+// AddContainerInitBinary adds the init binary specified by path iff the
+// container will run in a private PID namespace that is not shared with the
+// host or another pre-existing container, where an init-like process is
+// already running.
+// This does *NOT* modify the container command - that must be done elsewhere.
+func addContainerInitBinary(s *specgen.SpecGenerator, path string) (spec.Mount, error) {
+ mount := spec.Mount{
+ Destination: "/dev/init",
+ Type: TypeBind,
+ Source: path,
+ Options: []string{TypeBind, "ro"},
+ }
+
+ if path == "" {
+ return mount, fmt.Errorf("please specify a path to the container-init binary")
+ }
+ if !s.PidNS.IsPrivate() {
+ return mount, fmt.Errorf("cannot add init binary as PID 1 (PID namespace isn't private)")
+ }
+ if s.Systemd == "true" || s.Systemd == "always" {
+ return mount, fmt.Errorf("cannot use container-init binary with systemd")
+ }
+ if _, err := os.Stat(path); os.IsNotExist(err) {
+ return mount, errors.Wrap(err, "container-init binary not found on the host")
+ }
+ return mount, nil
+}
+
// Supersede existing mounts in the spec with new, user-specified mounts.
// TODO: Should we unmount subtree mounts? E.g., if /tmp/ is mounted by
// one mount, and we already have /tmp/a and /tmp/b, should we remove
diff --git a/pkg/specgen/specgen.go b/pkg/specgen/specgen.go
index 275af1f49..20c8f8800 100644
--- a/pkg/specgen/specgen.go
+++ b/pkg/specgen/specgen.go
@@ -154,14 +154,23 @@ type ContainerStorageConfig struct {
// ImageVolumeMode indicates how image volumes will be created.
// Supported modes are "ignore" (do not create), "tmpfs" (create as
// tmpfs), and "anonymous" (create as anonymous volumes).
- // The default is anonymous.
+ // The default if unset is anonymous.
// Optional.
ImageVolumeMode string `json:"image_volume_mode,omitempty"`
- // VolumesFrom is a list of containers whose volumes will be added to
- // this container. Supported mount options may be added after the
- // container name with a : and include "ro" and "rw".
- // Optional.
+ // VolumesFrom is a set of containers whose volumes will be added to
+ // this container. The name or ID of the container must be provided, and
+ // may optionally be followed by a : and then one or more
+ // comma-separated options. Valid options are 'ro', 'rw', and 'z'.
+ // Options will be used for all volumes sourced from the container.
VolumesFrom []string `json:"volumes_from,omitempty"`
+ // Init specifies that an init binary will be mounted into the
+ // container, and will be used as PID1.
+ Init bool `json:"init,omitempty"`
+ // InitPath specifies the path to the init binary that will be added if
+ // Init is specified above. If not specified, the default set in the
+ // Libpod config will be used. Ignored if Init above is not set.
+ // Optional.
+ InitPath string `json:"init_path,omitempty"`
// Mounts are mounts that will be added to the container.
// These will supersede Image Volumes and VolumesFrom volumes where
// there are conflicts.
diff --git a/test/e2e/ps_test.go b/test/e2e/ps_test.go
index 26f283b9c..b987c3ff4 100644
--- a/test/e2e/ps_test.go
+++ b/test/e2e/ps_test.go
@@ -21,7 +21,6 @@ var _ = Describe("Podman ps", func() {
)
BeforeEach(func() {
- Skip(v2fail)
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
@@ -168,6 +167,7 @@ var _ = Describe("Podman ps", func() {
})
It("podman ps namespace flag with go template format", func() {
+ Skip(v2fail)
_, ec, _ := podmanTest.RunLsContainer("test1")
Expect(ec).To(Equal(0))
diff --git a/test/e2e/run_volume_test.go b/test/e2e/run_volume_test.go
index 9da3c1340..1d9538912 100644
--- a/test/e2e/run_volume_test.go
+++ b/test/e2e/run_volume_test.go
@@ -27,7 +27,6 @@ var _ = Describe("Podman run with volumes", func() {
)
BeforeEach(func() {
- Skip(v2fail)
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
@@ -223,6 +222,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman run with tmpfs named volume mounts and unmounts", func() {
+ Skip(v2fail)
SkipIfRootless()
volName := "testvol"
mkVolume := podmanTest.Podman([]string{"volume", "create", "--opt", "type=tmpfs", "--opt", "device=tmpfs", "--opt", "o=nodev", "testvol"})
@@ -279,6 +279,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman named volume copyup", func() {
+ Skip(v2fail)
baselineSession := podmanTest.Podman([]string{"run", "--rm", "-t", "-i", ALPINE, "ls", "/etc/apk/"})
baselineSession.WaitWithDefaultTimeout()
Expect(baselineSession.ExitCode()).To(Equal(0))
@@ -310,6 +311,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman run with anonymous volume", func() {
+ Skip(v2fail)
list1 := podmanTest.Podman([]string{"volume", "list", "--quiet"})
list1.WaitWithDefaultTimeout()
Expect(list1.ExitCode()).To(Equal(0))
@@ -328,6 +330,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman rm -v removes anonymous volume", func() {
+ Skip(v2fail)
list1 := podmanTest.Podman([]string{"volume", "list", "--quiet"})
list1.WaitWithDefaultTimeout()
Expect(list1.ExitCode()).To(Equal(0))
@@ -356,6 +359,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman rm -v retains named volume", func() {
+ Skip(v2fail)
list1 := podmanTest.Podman([]string{"volume", "list", "--quiet"})
list1.WaitWithDefaultTimeout()
Expect(list1.ExitCode()).To(Equal(0))
@@ -394,6 +398,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("podman mount with invalid option fails", func() {
+ Skip(v2fail)
volName := "testVol"
volCreate := podmanTest.Podman([]string{"volume", "create", "--opt", "type=tmpfs", "--opt", "device=tmpfs", "--opt", "o=invalid", volName})
volCreate.WaitWithDefaultTimeout()
@@ -405,6 +410,7 @@ var _ = Describe("Podman run with volumes", func() {
})
It("Podman fix for CVE-2020-1726", func() {
+ Skip(v2fail)
volName := "testVol"
volCreate := podmanTest.Podman([]string{"volume", "create", volName})
volCreate.WaitWithDefaultTimeout()
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-15 09:22:20 +0000