diff options
Diffstat (limited to 'pkg')
-rw-r--r-- | pkg/api/handlers/libpod/containers_create.go | 2 | ||||
-rw-r--r-- | pkg/domain/entities/containers.go | 10 | ||||
-rw-r--r-- | pkg/domain/entities/engine_container.go | 1 | ||||
-rw-r--r-- | pkg/domain/entities/pods.go | 1 | ||||
-rw-r--r-- | pkg/domain/infra/abi/containers.go | 91 | ||||
-rw-r--r-- | pkg/domain/infra/abi/play.go | 4 | ||||
-rw-r--r-- | pkg/domain/infra/tunnel/containers.go | 4 | ||||
-rw-r--r-- | pkg/specgen/generate/container.go | 150 | ||||
-rw-r--r-- | pkg/specgen/generate/container_create.go | 39 | ||||
-rw-r--r-- | pkg/specgen/generate/oci.go | 9 | ||||
-rw-r--r-- | pkg/specgen/generate/pod_create.go | 2 | ||||
-rw-r--r-- | pkg/specgenutil/createparse.go | 2 | ||||
-rw-r--r-- | pkg/specgenutil/specgen.go | 295 |
13 files changed, 514 insertions, 96 deletions
diff --git a/pkg/api/handlers/libpod/containers_create.go b/pkg/api/handlers/libpod/containers_create.go index 8e5fc1c1c..61f437faf 100644 --- a/pkg/api/handlers/libpod/containers_create.go +++ b/pkg/api/handlers/libpod/containers_create.go @@ -33,7 +33,7 @@ func CreateContainer(w http.ResponseWriter, r *http.Request) { utils.InternalServerError(w, err) return } - rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), runtime, &sg) + rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), runtime, &sg, false, nil) if err != nil { utils.InternalServerError(w, err) return diff --git a/pkg/domain/entities/containers.go b/pkg/domain/entities/containers.go index d39a70732..e9bce0eb7 100644 --- a/pkg/domain/entities/containers.go +++ b/pkg/domain/entities/containers.go @@ -463,3 +463,13 @@ type ContainerRenameOptions struct { // NewName is the new name that will be given to the container. NewName string } + +// ContainerCloneOptions contains options for cloning an existing continer +type ContainerCloneOptions struct { + ID string + Destroy bool + CreateOpts ContainerCreateOptions + Image string + RawImageName string + Run bool +} diff --git a/pkg/domain/entities/engine_container.go b/pkg/domain/entities/engine_container.go index 5dedceacc..21272d33f 100644 --- a/pkg/domain/entities/engine_container.go +++ b/pkg/domain/entities/engine_container.go @@ -19,6 +19,7 @@ type ContainerEngine interface { ContainerAttach(ctx context.Context, nameOrID string, options AttachOptions) error ContainerCheckpoint(ctx context.Context, namesOrIds []string, options CheckpointOptions) ([]*CheckpointReport, error) ContainerCleanup(ctx context.Context, namesOrIds []string, options ContainerCleanupOptions) ([]*ContainerCleanupReport, error) + ContainerClone(ctx context.Context, ctrClone ContainerCloneOptions) (*ContainerCreateReport, error) ContainerCommit(ctx context.Context, nameOrID string, options CommitOptions) (*CommitReport, error) ContainerCopyFromArchive(ctx context.Context, nameOrID, path string, reader io.Reader, options CopyOptions) (ContainerCopyFunc, error) ContainerCopyToArchive(ctx context.Context, nameOrID string, path string, writer io.Writer) (ContainerCopyFunc, error) diff --git a/pkg/domain/entities/pods.go b/pkg/domain/entities/pods.go index 7922db4e6..6fb3db1b5 100644 --- a/pkg/domain/entities/pods.go +++ b/pkg/domain/entities/pods.go @@ -264,6 +264,7 @@ type ContainerCreateOptions struct { SeccompPolicy string PidFile string IsInfra bool + IsClone bool Net *NetOptions `json:"net,omitempty"` diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go index a5c4647d7..92f5b1a80 100644 --- a/pkg/domain/infra/abi/containers.go +++ b/pkg/domain/infra/abi/containers.go @@ -6,6 +6,7 @@ import ( "io/ioutil" "os" "strconv" + "strings" "sync" "time" @@ -648,7 +649,7 @@ func (ic *ContainerEngine) ContainerCreate(ctx context.Context, s *specgen.SpecG for _, w := range warn { fmt.Fprintf(os.Stderr, "%s\n", w) } - rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), ic.Libpod, s) + rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), ic.Libpod, s, false, nil) if err != nil { return nil, err } @@ -971,7 +972,7 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta fmt.Fprintf(os.Stderr, "%s\n", w) } - rtSpec, spec, optsN, err := generate.MakeContainer(ctx, ic.Libpod, opts.Spec) + rtSpec, spec, optsN, err := generate.MakeContainer(ctx, ic.Libpod, opts.Spec, false, nil) if err != nil { return nil, err } @@ -1490,3 +1491,89 @@ func (ic *ContainerEngine) ContainerRename(ctx context.Context, nameOrID string, return nil } + +func (ic *ContainerEngine) ContainerClone(ctx context.Context, ctrCloneOpts entities.ContainerCloneOptions) (*entities.ContainerCreateReport, error) { + spec := specgen.NewSpecGenerator(ctrCloneOpts.Image, ctrCloneOpts.CreateOpts.RootFS) + var c *libpod.Container + c, err := generate.ConfigToSpec(ic.Libpod, spec, ctrCloneOpts.ID) + if err != nil { + return nil, err + } + + err = specgenutil.FillOutSpecGen(spec, &ctrCloneOpts.CreateOpts, []string{}) + if err != nil { + return nil, err + } + out, err := generate.CompleteSpec(ctx, ic.Libpod, spec) + if err != nil { + return nil, err + } + + // Print warnings + if len(out) > 0 { + for _, w := range out { + fmt.Println("Could not properly complete the spec as expected:") + fmt.Fprintf(os.Stderr, "%s\n", w) + } + } + + if len(ctrCloneOpts.CreateOpts.Name) > 0 { + spec.Name = ctrCloneOpts.CreateOpts.Name + } else { + n := c.Name() + _, err := ic.Libpod.LookupContainer(c.Name() + "-clone") + if err == nil { + n += "-clone" + } + switch { + case strings.Contains(n, "-clone"): + ind := strings.Index(n, "-clone") + 6 + num, _ := strconv.Atoi(n[ind:]) + if num == 0 { // clone1 is hard to get with this logic, just check for it here. + _, err = ic.Libpod.LookupContainer(n + "1") + if err != nil { + spec.Name = n + "1" + break + } + } else { + n = n[0:ind] + } + err = nil + count := num + for err == nil { + count++ + tempN := n + strconv.Itoa(count) + _, err = ic.Libpod.LookupContainer(tempN) + } + n += strconv.Itoa(count) + spec.Name = n + default: + spec.Name = c.Name() + "-clone" + } + } + + rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), ic.Libpod, spec, true, c) + if err != nil { + return nil, err + } + ctr, err := generate.ExecuteCreate(ctx, ic.Libpod, rtSpec, spec, false, opts...) + if err != nil { + return nil, err + } + + if ctrCloneOpts.Destroy { + var time *uint + err := ic.Libpod.RemoveContainer(context.Background(), c, false, false, time) + if err != nil { + return nil, err + } + } + + if ctrCloneOpts.Run { + if err := ctr.Start(ctx, true); err != nil { + return nil, err + } + } + + return &entities.ContainerCreateReport{Id: ctr.ID()}, nil +} diff --git a/pkg/domain/infra/abi/play.go b/pkg/domain/infra/abi/play.go index b8ca591bb..1cd80a6d2 100644 --- a/pkg/domain/infra/abi/play.go +++ b/pkg/domain/infra/abi/play.go @@ -392,7 +392,7 @@ func (ic *ContainerEngine) playKubePod(ctx context.Context, podName string, podY if err != nil { return nil, err } - rtSpec, spec, opts, err := generate.MakeContainer(ctx, ic.Libpod, specGen) + rtSpec, spec, opts, err := generate.MakeContainer(ctx, ic.Libpod, specGen, false, nil) if err != nil { return nil, err } @@ -435,7 +435,7 @@ func (ic *ContainerEngine) playKubePod(ctx context.Context, podName string, podY if err != nil { return nil, err } - rtSpec, spec, opts, err := generate.MakeContainer(ctx, ic.Libpod, specGen) + rtSpec, spec, opts, err := generate.MakeContainer(ctx, ic.Libpod, specGen, false, nil) if err != nil { return nil, err } diff --git a/pkg/domain/infra/tunnel/containers.go b/pkg/domain/infra/tunnel/containers.go index 67e709486..aa4baf846 100644 --- a/pkg/domain/infra/tunnel/containers.go +++ b/pkg/domain/infra/tunnel/containers.go @@ -958,3 +958,7 @@ func (ic *ContainerEngine) ShouldRestart(_ context.Context, id string) (bool, er func (ic *ContainerEngine) ContainerRename(ctx context.Context, nameOrID string, opts entities.ContainerRenameOptions) error { return containers.Rename(ic.ClientCtx, nameOrID, new(containers.RenameOptions).WithName(opts.NewName)) } + +func (ic *ContainerEngine) ContainerClone(ctx context.Context, ctrCloneOpts entities.ContainerCloneOptions) (*entities.ContainerCreateReport, error) { + return nil, errors.New("cloning a container is not supported on the remote client") +} diff --git a/pkg/specgen/generate/container.go b/pkg/specgen/generate/container.go index a4d862a60..64669f34d 100644 --- a/pkg/specgen/generate/container.go +++ b/pkg/specgen/generate/container.go @@ -2,6 +2,7 @@ package generate import ( "context" + "encoding/json" "os" "strings" "time" @@ -335,3 +336,152 @@ func FinishThrottleDevices(s *specgen.SpecGenerator) error { } return nil } + +// ConfigToSpec takes a completed container config and converts it back into a specgenerator for purposes of cloning an exisiting container +func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, contaierID string) (*libpod.Container, error) { + c, err := rt.LookupContainer(contaierID) + if err != nil { + return nil, err + } + conf := c.Config() + + tmpSystemd := conf.Systemd + tmpMounts := conf.Mounts + + conf.Systemd = nil + conf.Mounts = []string{} + + specg.Pod = conf.Pod + + matching, err := json.Marshal(conf) + if err != nil { + return nil, err + } + + err = json.Unmarshal(matching, specg) + if err != nil { + return nil, err + } + conf.Systemd = tmpSystemd + conf.Mounts = tmpMounts + + if conf.Spec != nil && conf.Spec.Linux != nil && conf.Spec.Linux.Resources != nil { + if specg.ResourceLimits == nil { + specg.ResourceLimits = conf.Spec.Linux.Resources + } + } + + nameSpaces := []string{"pid", "net", "cgroup", "ipc", "uts", "user"} + containers := []string{conf.PIDNsCtr, conf.NetNsCtr, conf.CgroupNsCtr, conf.IPCNsCtr, conf.UTSNsCtr, conf.UserNsCtr} + place := []*specgen.Namespace{&specg.PidNS, &specg.NetNS, &specg.CgroupNS, &specg.IpcNS, &specg.UtsNS, &specg.UserNS} + for i, ns := range containers { + if len(ns) > 0 { + ns := specgen.Namespace{NSMode: specgen.FromContainer, Value: ns} + place[i] = &ns + } else { + switch nameSpaces[i] { + case "pid": + specg.PidNS = specgen.Namespace{NSMode: specgen.Default} //default + case "net": + switch { + case conf.NetMode.IsBridge(): + toExpose := make(map[uint16]string, len(conf.ExposedPorts)) + for _, expose := range []map[uint16][]string{conf.ExposedPorts} { + for port, proto := range expose { + toExpose[port] = strings.Join(proto, ",") + } + } + specg.Expose = toExpose + specg.PortMappings = conf.PortMappings + specg.NetNS = specgen.Namespace{NSMode: specgen.Bridge} + case conf.NetMode.IsSlirp4netns(): + toExpose := make(map[uint16]string, len(conf.ExposedPorts)) + for _, expose := range []map[uint16][]string{conf.ExposedPorts} { + for port, proto := range expose { + toExpose[port] = strings.Join(proto, ",") + } + } + specg.Expose = toExpose + specg.PortMappings = conf.PortMappings + netMode := strings.Split(string(conf.NetMode), ":") + var val string + if len(netMode) > 1 { + val = netMode[1] + } + specg.NetNS = specgen.Namespace{NSMode: specgen.Slirp, Value: val} + case conf.NetMode.IsPrivate(): + specg.NetNS = specgen.Namespace{NSMode: specgen.Private} + case conf.NetMode.IsDefault(): + specg.NetNS = specgen.Namespace{NSMode: specgen.Default} + case conf.NetMode.IsUserDefined(): + specg.NetNS = specgen.Namespace{NSMode: specgen.Path, Value: strings.Split(string(conf.NetMode), ":")[1]} + case conf.NetMode.IsContainer(): + specg.NetNS = specgen.Namespace{NSMode: specgen.FromContainer, Value: strings.Split(string(conf.NetMode), ":")[1]} + case conf.NetMode.IsPod(): + specg.NetNS = specgen.Namespace{NSMode: specgen.FromPod, Value: strings.Split(string(conf.NetMode), ":")[1]} + } + case "cgroup": + specg.CgroupNS = specgen.Namespace{NSMode: specgen.Default} //default + case "ipc": + if conf.ShmDir == "/dev/shm" { + specg.IpcNS = specgen.Namespace{NSMode: specgen.Host} + } else { + specg.IpcNS = specgen.Namespace{NSMode: specgen.Default} //default + } + case "uts": + specg.UtsNS = specgen.Namespace{NSMode: specgen.Default} //default + case "user": + if conf.AddCurrentUserPasswdEntry { + specg.UserNS = specgen.Namespace{NSMode: specgen.KeepID} + } else { + specg.UserNS = specgen.Namespace{NSMode: specgen.Default} //default + } + } + } + } + + specg.IDMappings = &conf.IDMappings + specg.ContainerCreateCommand = conf.CreateCommand + if len(specg.Rootfs) == 0 { + specg.Rootfs = conf.Rootfs + } + if len(specg.Image) == 0 { + specg.Image = conf.RootfsImageID + } + var named []*specgen.NamedVolume + if len(conf.NamedVolumes) != 0 { + for _, v := range conf.NamedVolumes { + named = append(named, &specgen.NamedVolume{ + Name: v.Name, + Dest: v.Dest, + Options: v.Options, + }) + } + } + specg.Volumes = named + var image []*specgen.ImageVolume + if len(conf.ImageVolumes) != 0 { + for _, v := range conf.ImageVolumes { + image = append(image, &specgen.ImageVolume{ + Source: v.Source, + Destination: v.Dest, + ReadWrite: v.ReadWrite, + }) + } + } + specg.ImageVolumes = image + var overlay []*specgen.OverlayVolume + if len(conf.OverlayVolumes) != 0 { + for _, v := range conf.OverlayVolumes { + overlay = append(overlay, &specgen.OverlayVolume{ + Source: v.Source, + Destination: v.Dest, + Options: v.Options, + }) + } + } + specg.OverlayVolumes = overlay + specg.Mounts = conf.Spec.Mounts + specg.HostDeviceList = conf.DeviceHostSrc + return c, nil +} diff --git a/pkg/specgen/generate/container_create.go b/pkg/specgen/generate/container_create.go index a7a7353d0..c0b23953f 100644 --- a/pkg/specgen/generate/container_create.go +++ b/pkg/specgen/generate/container_create.go @@ -8,6 +8,7 @@ import ( cdi "github.com/container-orchestrated-devices/container-device-interface/pkg/cdi" "github.com/containers/common/libimage" + "github.com/containers/common/pkg/cgroups" "github.com/containers/podman/v4/libpod" "github.com/containers/podman/v4/libpod/define" "github.com/containers/podman/v4/pkg/namespaces" @@ -22,7 +23,7 @@ import ( // MakeContainer creates a container based on the SpecGenerator. // Returns the created, container and any warnings resulting from creating the // container, or an error. -func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGenerator) (*spec.Spec, *specgen.SpecGenerator, []libpod.CtrCreateOption, error) { +func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGenerator, clone bool, c *libpod.Container) (*spec.Spec, *specgen.SpecGenerator, []libpod.CtrCreateOption, error) { rtc, err := rt.GetConfigNoCopy() if err != nil { return nil, nil, nil, err @@ -170,6 +171,42 @@ func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGener options = append(options, opts...) } runtimeSpec, err := SpecGenToOCI(ctx, s, rt, rtc, newImage, finalMounts, pod, command, compatibleOptions) + if clone { // the container fails to start if cloned due to missing Linux spec entries + if c == nil { + return nil, nil, nil, errors.New("the given container could not be retrieved") + } + conf := c.Config() + out, err := json.Marshal(conf.Spec.Linux) + if err != nil { + return nil, nil, nil, err + } + err = json.Unmarshal(out, runtimeSpec.Linux) + if err != nil { + return nil, nil, nil, err + } + + switch { + case s.ResourceLimits.CPU != nil: + runtimeSpec.Linux.Resources.CPU = s.ResourceLimits.CPU + case s.ResourceLimits.Memory != nil: + runtimeSpec.Linux.Resources.Memory = s.ResourceLimits.Memory + case s.ResourceLimits.BlockIO != nil: + runtimeSpec.Linux.Resources.BlockIO = s.ResourceLimits.BlockIO + case s.ResourceLimits.Devices != nil: + runtimeSpec.Linux.Resources.Devices = s.ResourceLimits.Devices + } + + cgroup2, err := cgroups.IsCgroup2UnifiedMode() + if err != nil { + return nil, nil, nil, err + } + if cgroup2 && s.ResourceLimits.Memory != nil && s.ResourceLimits.Memory.Swappiness != nil { // conf.Spec.Linux contains memory swappiness established after the spec process we need to remove that + s.ResourceLimits.Memory.Swappiness = nil + if runtimeSpec.Linux.Resources.Memory != nil { + runtimeSpec.Linux.Resources.Memory.Swappiness = nil + } + } + } if err != nil { return nil, nil, nil, err } diff --git a/pkg/specgen/generate/oci.go b/pkg/specgen/generate/oci.go index 945c994ea..8b3550e36 100644 --- a/pkg/specgen/generate/oci.go +++ b/pkg/specgen/generate/oci.go @@ -301,7 +301,14 @@ func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runt } if compatibleOptions.InfraResources == nil && s.ResourceLimits != nil { - g.Config.Linux.Resources = s.ResourceLimits + out, err := json.Marshal(s.ResourceLimits) + if err != nil { + return nil, err + } + err = json.Unmarshal(out, g.Config.Linux.Resources) + if err != nil { + return nil, err + } } else if s.ResourceLimits != nil { // if we have predefined resource limits we need to make sure we keep the infra and container limits originalResources, err := json.Marshal(s.ResourceLimits) if err != nil { diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go index 68fda3ad7..8450fe7ce 100644 --- a/pkg/specgen/generate/pod_create.go +++ b/pkg/specgen/generate/pod_create.go @@ -135,7 +135,7 @@ func MakePod(p *entities.PodSpec, rt *libpod.Runtime) (*libpod.Pod, error) { return nil, err } p.PodSpecGen.InfraContainerSpec.User = "" // infraSpec user will get incorrectly assigned via the container creation process, overwrite here - rtSpec, spec, opts, err := MakeContainer(context.Background(), rt, p.PodSpecGen.InfraContainerSpec) + rtSpec, spec, opts, err := MakeContainer(context.Background(), rt, p.PodSpecGen.InfraContainerSpec, false, nil) if err != nil { return nil, err } diff --git a/pkg/specgenutil/createparse.go b/pkg/specgenutil/createparse.go index 9666e4be0..a51396227 100644 --- a/pkg/specgenutil/createparse.go +++ b/pkg/specgenutil/createparse.go @@ -26,6 +26,8 @@ func validate(c *entities.ContainerCreateOptions) error { if _, ok := imageVolType[c.ImageVolume]; !ok { if c.IsInfra { c.ImageVolume = "bind" + } else if c.IsClone { // the image volume type will be deduced later from the container we are cloning + return nil } else { return errors.Errorf("invalid image-volume type %q. Pick one of bind, tmpfs, or ignore", c.ImageVolume) } diff --git a/pkg/specgenutil/specgen.go b/pkg/specgenutil/specgen.go index 17699a038..b037e14cc 100644 --- a/pkg/specgenutil/specgen.go +++ b/pkg/specgenutil/specgen.go @@ -256,38 +256,43 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions if err := setNamespaces(s, c); err != nil { return err } - userNS := namespaces.UsernsMode(s.UserNS.NSMode) - tempIDMap, err := util.ParseIDMapping(namespaces.UsernsMode(c.UserNS), []string{}, []string{}, "", "") - if err != nil { - return err - } - s.IDMappings, err = util.ParseIDMapping(userNS, c.UIDMap, c.GIDMap, c.SubUIDName, c.SubGIDName) - if err != nil { - return err - } - if len(s.IDMappings.GIDMap) == 0 { - s.IDMappings.AutoUserNsOpts.AdditionalGIDMappings = tempIDMap.AutoUserNsOpts.AdditionalGIDMappings - if s.UserNS.NSMode == specgen.NamespaceMode("auto") { - s.IDMappings.AutoUserNs = true + + if s.IDMappings == nil { + userNS := namespaces.UsernsMode(s.UserNS.NSMode) + tempIDMap, err := util.ParseIDMapping(namespaces.UsernsMode(c.UserNS), []string{}, []string{}, "", "") + if err != nil { + return err } - } - if len(s.IDMappings.UIDMap) == 0 { - s.IDMappings.AutoUserNsOpts.AdditionalUIDMappings = tempIDMap.AutoUserNsOpts.AdditionalUIDMappings - if s.UserNS.NSMode == specgen.NamespaceMode("auto") { - s.IDMappings.AutoUserNs = true + s.IDMappings, err = util.ParseIDMapping(userNS, c.UIDMap, c.GIDMap, c.SubUIDName, c.SubGIDName) + if err != nil { + return err + } + if len(s.IDMappings.GIDMap) == 0 { + s.IDMappings.AutoUserNsOpts.AdditionalGIDMappings = tempIDMap.AutoUserNsOpts.AdditionalGIDMappings + if s.UserNS.NSMode == specgen.NamespaceMode("auto") { + s.IDMappings.AutoUserNs = true + } + } + if len(s.IDMappings.UIDMap) == 0 { + s.IDMappings.AutoUserNsOpts.AdditionalUIDMappings = tempIDMap.AutoUserNsOpts.AdditionalUIDMappings + if s.UserNS.NSMode == specgen.NamespaceMode("auto") { + s.IDMappings.AutoUserNs = true + } + } + if tempIDMap.AutoUserNsOpts.Size != 0 { + s.IDMappings.AutoUserNsOpts.Size = tempIDMap.AutoUserNsOpts.Size + } + // If some mappings are specified, assume a private user namespace + if userNS.IsDefaultValue() && (!s.IDMappings.HostUIDMapping || !s.IDMappings.HostGIDMapping) { + s.UserNS.NSMode = specgen.Private + } else { + s.UserNS.NSMode = specgen.NamespaceMode(userNS) } - } - if tempIDMap.AutoUserNsOpts.Size != 0 { - s.IDMappings.AutoUserNsOpts.Size = tempIDMap.AutoUserNsOpts.Size - } - // If some mappings are specified, assume a private user namespace - if userNS.IsDefaultValue() && (!s.IDMappings.HostUIDMapping || !s.IDMappings.HostGIDMapping) { - s.UserNS.NSMode = specgen.Private - } else { - s.UserNS.NSMode = specgen.NamespaceMode(userNS) } - s.Terminal = c.TTY + if !s.Terminal { + s.Terminal = c.TTY + } if err := verifyExpose(c.Expose); err != nil { return err @@ -297,8 +302,13 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions if c.Net != nil { s.PortMappings = c.Net.PublishPorts } - s.PublishExposedPorts = c.PublishAll - s.Pod = c.Pod + if !s.PublishExposedPorts { + s.PublishExposedPorts = c.PublishAll + } + + if len(s.Pod) == 0 { + s.Pod = c.Pod + } if len(c.PodIDFile) > 0 { if len(s.Pod) > 0 { @@ -315,7 +325,10 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions if err != nil { return err } - s.Expose = expose + + if len(s.Expose) == 0 { + s.Expose = expose + } if sig := c.StopSignal; len(sig) > 0 { stopSignal, err := util.ParseSignal(sig) @@ -341,8 +354,13 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions return errors.Wrap(err, "error parsing host environment variables") } - s.EnvHost = c.EnvHost - s.HTTPProxy = c.HTTPProxy + if !s.EnvHost { + s.EnvHost = c.EnvHost + } + + if !s.HTTPProxy { + s.HTTPProxy = c.HTTPProxy + } // env-file overrides any previous variables for _, f := range c.EnvFile { @@ -359,7 +377,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions return err } - s.Env = envLib.Join(env, parsedEnv) + if len(s.Env) == 0 { + s.Env = envLib.Join(env, parsedEnv) + } // LABEL VARIABLES labels, err := parse.GetAllLabels(c.LabelFile, c.Label) @@ -371,7 +391,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions labels[systemdDefine.EnvVariable] = systemdUnit } - s.Labels = labels + if len(s.Labels) == 0 { + s.Labels = labels + } // ANNOTATIONS annotations := make(map[string]string) @@ -390,7 +412,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions } annotations[splitAnnotation[0]] = splitAnnotation[1] } - s.Annotations = annotations + if len(s.Annotations) == 0 { + s.Annotations = annotations + } if len(c.StorageOpts) > 0 { opts := make(map[string]string, len(c.StorageOpts)) @@ -403,7 +427,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions } s.StorageOpts = opts } - s.WorkDir = c.Workdir + if len(s.WorkDir) == 0 { + s.WorkDir = c.Workdir + } if c.Entrypoint != nil { entrypoint := []string{} // Check if entrypoint specified is json @@ -415,7 +441,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions // Include the command used to create the container. - s.ContainerCreateCommand = os.Args + if len(s.ContainerCreateCommand) == 0 { + s.ContainerCreateCommand = os.Args + } if len(inputCommand) > 0 { s.Command = inputCommand @@ -444,24 +472,37 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.NetworkOptions = c.Net.NetworkOptions s.UseImageHosts = c.Net.NoHosts } - s.HostUsers = c.HostUsers - s.ImageVolumeMode = c.ImageVolume + if len(s.HostUsers) == 0 || len(c.HostUsers) != 0 { + s.HostUsers = c.HostUsers + } + if len(s.ImageVolumeMode) == 0 || len(c.ImageVolume) != 0 { + s.ImageVolumeMode = c.ImageVolume + } if s.ImageVolumeMode == "bind" { s.ImageVolumeMode = "anonymous" } - s.Systemd = strings.ToLower(c.Systemd) - s.SdNotifyMode = c.SdNotifyMode + if len(s.Systemd) == 0 || len(c.Systemd) != 0 { + s.Systemd = strings.ToLower(c.Systemd) + } + if len(s.SdNotifyMode) == 0 || len(c.SdNotifyMode) != 0 { + s.SdNotifyMode = c.SdNotifyMode + } if s.ResourceLimits == nil { s.ResourceLimits = &specs.LinuxResources{} } - s.ResourceLimits.Memory, err = getMemoryLimits(s, c) - if err != nil { - return err + + if s.ResourceLimits.Memory == nil || (len(c.Memory) != 0 || len(c.MemoryReservation) != 0 || len(c.MemorySwap) != 0 || c.MemorySwappiness != 0) { + s.ResourceLimits.Memory, err = getMemoryLimits(s, c) + if err != nil { + return err + } } - s.ResourceLimits.BlockIO, err = getIOLimits(s, c) - if err != nil { - return err + if s.ResourceLimits.BlockIO == nil || (len(c.BlkIOWeight) != 0 || len(c.BlkIOWeightDevice) != 0) { + s.ResourceLimits.BlockIO, err = getIOLimits(s, c) + if err != nil { + return err + } } if c.PIDsLimit != nil { pids := specs.LinuxPids{ @@ -470,7 +511,10 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.ResourceLimits.Pids = &pids } - s.ResourceLimits.CPU = getCPULimits(c) + + if s.ResourceLimits.CPU == nil || (c.CPUPeriod != 0 || c.CPUQuota != 0 || c.CPURTPeriod != 0 || c.CPURTRuntime != 0 || c.CPUS != 0 || len(c.CPUSetCPUs) != 0 || len(c.CPUSetMems) != 0 || c.CPUShares != 0) { + s.ResourceLimits.CPU = getCPULimits(c) + } unifieds := make(map[string]string) for _, unified := range c.CgroupConf { @@ -495,8 +539,12 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions if ld := c.LogDriver; len(ld) > 0 { s.LogConfiguration.Driver = ld } - s.CgroupParent = c.CgroupParent - s.CgroupsMode = c.CgroupsMode + if len(s.CgroupParent) == 0 || len(c.CgroupParent) != 0 { + s.CgroupParent = c.CgroupParent + } + if len(s.CgroupsMode) == 0 { + s.CgroupsMode = c.CgroupsMode + } if s.CgroupsMode == "" { rtc, err := config.Default() if err != nil { @@ -506,9 +554,13 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.CgroupsMode = rtc.Cgroups() } - s.Groups = c.GroupAdd + if len(s.Groups) == 0 || len(c.GroupAdd) != 0 { + s.Groups = c.GroupAdd + } - s.Hostname = c.Hostname + if len(s.Hostname) == 0 || len(c.Hostname) != 0 { + s.Hostname = c.Hostname + } sysctl := map[string]string{} if ctl := c.Sysctl; len(ctl) > 0 { sysctl, err = util.ValidateSysctls(ctl) @@ -516,15 +568,29 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions return err } } - s.Sysctl = sysctl + if len(s.Sysctl) == 0 || len(c.Sysctl) != 0 { + s.Sysctl = sysctl + } - s.CapAdd = c.CapAdd - s.CapDrop = c.CapDrop - s.Privileged = c.Privileged - s.ReadOnlyFilesystem = c.ReadOnly - s.ConmonPidFile = c.ConmonPIDFile + if len(s.CapAdd) == 0 || len(c.CapAdd) != 0 { + s.CapAdd = c.CapAdd + } + if len(s.CapDrop) == 0 || len(c.CapDrop) != 0 { + s.CapDrop = c.CapDrop + } + if !s.Privileged { + s.Privileged = c.Privileged + } + if !s.ReadOnlyFilesystem { + s.ReadOnlyFilesystem = c.ReadOnly + } + if len(s.ConmonPidFile) == 0 || len(c.ConmonPIDFile) != 0 { + s.ConmonPidFile = c.ConmonPIDFile + } - s.DependencyContainers = c.Requires + if len(s.DependencyContainers) == 0 || len(c.Requires) != 0 { + s.DependencyContainers = c.Requires + } // TODO // outside of specgen and oci though @@ -540,7 +606,9 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions } sysmap[splitCtl[0]] = splitCtl[1] } - s.Sysctl = sysmap + if len(s.Sysctl) == 0 || len(c.Sysctl) != 0 { + s.Sysctl = sysmap + } if c.CIDFile != "" { s.Annotations[define.InspectAnnotationCIDFile] = c.CIDFile @@ -584,9 +652,13 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions } } - s.SeccompPolicy = c.SeccompPolicy + if len(s.SeccompPolicy) == 0 || len(c.SeccompPolicy) != 0 { + s.SeccompPolicy = c.SeccompPolicy + } - s.VolumesFrom = c.VolumesFrom + if len(s.VolumesFrom) == 0 || len(c.VolumesFrom) != 0 { + s.VolumesFrom = c.VolumesFrom + } // Only add read-only tmpfs mounts in case that we are read-only and the // read-only tmpfs flag has been set. @@ -594,10 +666,19 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions if err != nil { return err } - s.Mounts = mounts - s.Volumes = volumes - s.OverlayVolumes = overlayVolumes - s.ImageVolumes = imageVolumes + if len(s.Mounts) == 0 || len(c.Mount) != 0 { + s.Mounts = mounts + } + if len(s.Volumes) == 0 || len(c.Volume) != 0 { + s.Volumes = volumes + } + // TODO make sure these work in clone + if len(s.OverlayVolumes) == 0 { + s.OverlayVolumes = overlayVolumes + } + if len(s.ImageVolumes) == 0 { + s.ImageVolumes = imageVolumes + } for _, dev := range c.Devices { s.Devices = append(s.Devices, specs.LinuxDevice{Path: dev}) @@ -611,9 +692,15 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.DeviceCgroupRule = append(s.DeviceCgroupRule, dev) } - s.Init = c.Init - s.InitPath = c.InitPath - s.Stdin = c.Interactive + if !s.Init { + s.Init = c.Init + } + if len(s.InitPath) == 0 || len(c.InitPath) != 0 { + s.InitPath = c.InitPath + } + if !s.Stdin { + s.Stdin = c.Interactive + } // quiet // DeviceCgroupRules: c.StringSlice("device-cgroup-rule"), @@ -656,11 +743,19 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions logOpts[split[0]] = split[1] } } - s.LogConfiguration.Options = logOpts - s.Name = c.Name - s.PreserveFDs = c.PreserveFDs + if len(s.LogConfiguration.Options) == 0 || len(c.LogOptions) != 0 { + s.LogConfiguration.Options = logOpts + } + if len(s.Name) == 0 || len(c.Name) != 0 { + s.Name = c.Name + } + if s.PreserveFDs == 0 || c.PreserveFDs != 0 { + s.PreserveFDs = c.PreserveFDs + } - s.OOMScoreAdj = &c.OOMScoreAdj + if s.OOMScoreAdj == nil || c.OOMScoreAdj != 0 { + s.OOMScoreAdj = &c.OOMScoreAdj + } if c.Restart != "" { splitRestart := strings.Split(c.Restart, ":") switch len(splitRestart) { @@ -685,9 +780,11 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.RestartPolicy = splitRestart[0] } - s.Secrets, s.EnvSecrets, err = parseSecrets(c.Secrets) - if err != nil { - return err + if len(s.Secrets) == 0 || len(c.Secrets) != 0 { + s.Secrets, s.EnvSecrets, err = parseSecrets(c.Secrets) + if err != nil { + return err + } } if c.Personality != "" { @@ -695,21 +792,43 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *entities.ContainerCreateOptions s.Personality.Domain = specs.LinuxPersonalityDomain(c.Personality) } - s.Remove = c.Rm - s.StopTimeout = &c.StopTimeout - s.Timeout = c.Timeout - s.Timezone = c.Timezone - s.Umask = c.Umask - s.PidFile = c.PidFile - s.Volatile = c.Rm - s.UnsetEnv = c.UnsetEnv - s.UnsetEnvAll = c.UnsetEnvAll + if !s.Remove { + s.Remove = c.Rm + } + if s.StopTimeout == nil || c.StopTimeout != 0 { + s.StopTimeout = &c.StopTimeout + } + if s.Timeout == 0 || c.Timeout != 0 { + s.Timeout = c.Timeout + } + if len(s.Timezone) == 0 || len(c.Timezone) != 0 { + s.Timezone = c.Timezone + } + if len(s.Umask) == 0 || len(c.Umask) != 0 { + s.Umask = c.Umask + } + if len(s.PidFile) == 0 || len(c.PidFile) != 0 { + s.PidFile = c.PidFile + } + if !s.Volatile { + s.Volatile = c.Rm + } + if len(s.UnsetEnv) == 0 || len(c.UnsetEnv) != 0 { + s.UnsetEnv = c.UnsetEnv + } + if !s.UnsetEnvAll { + s.UnsetEnvAll = c.UnsetEnvAll + } // Initcontainers - s.InitContainerType = c.InitContainerType + if len(s.InitContainerType) == 0 || len(c.InitContainerType) != 0 { + s.InitContainerType = c.InitContainerType + } t := true - s.Passwd = &t + if s.Passwd == nil { + s.Passwd = &t + } return nil } |