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container.go
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container.go
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package convert
import (
"fmt"
"strings"
types "github.com/docker/engine-api/types/swarm"
swarmapi "github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/protobuf/ptypes"
)
func containerSpecFromGRPC(c *swarmapi.ContainerSpec) types.ContainerSpec {
containerSpec := types.ContainerSpec{
Image: c.Image,
Labels: c.Labels,
Command: c.Command,
Args: c.Args,
Env: c.Env,
Dir: c.Dir,
User: c.User,
}
// Mounts
for _, m := range c.Mounts {
mount := types.Mount{
Target: m.Target,
Source: m.Source,
Type: types.MountType(strings.ToLower(swarmapi.Mount_MountType_name[int32(m.Type)])),
ReadOnly: m.ReadOnly,
}
if m.BindOptions != nil {
mount.BindOptions = &types.BindOptions{
Propagation: types.MountPropagation(strings.ToLower(swarmapi.Mount_BindOptions_MountPropagation_name[int32(m.BindOptions.Propagation)])),
}
}
if m.VolumeOptions != nil {
mount.VolumeOptions = &types.VolumeOptions{
NoCopy: m.VolumeOptions.NoCopy,
Labels: m.VolumeOptions.Labels,
}
if m.VolumeOptions.DriverConfig != nil {
mount.VolumeOptions.DriverConfig = &types.Driver{
Name: m.VolumeOptions.DriverConfig.Name,
Options: m.VolumeOptions.DriverConfig.Options,
}
}
}
containerSpec.Mounts = append(containerSpec.Mounts, mount)
}
if c.StopGracePeriod != nil {
grace, _ := ptypes.Duration(c.StopGracePeriod)
containerSpec.StopGracePeriod = &grace
}
return containerSpec
}
func containerToGRPC(c types.ContainerSpec) (*swarmapi.ContainerSpec, error) {
containerSpec := &swarmapi.ContainerSpec{
Image: c.Image,
Labels: c.Labels,
Command: c.Command,
Args: c.Args,
Env: c.Env,
Dir: c.Dir,
User: c.User,
}
if c.StopGracePeriod != nil {
containerSpec.StopGracePeriod = ptypes.DurationProto(*c.StopGracePeriod)
}
// Mounts
for _, m := range c.Mounts {
mount := swarmapi.Mount{
Target: m.Target,
Source: m.Source,
ReadOnly: m.ReadOnly,
}
if mountType, ok := swarmapi.Mount_MountType_value[strings.ToUpper(string(m.Type))]; ok {
mount.Type = swarmapi.Mount_MountType(mountType)
} else if string(m.Type) != "" {
return nil, fmt.Errorf("invalid MountType: %q", m.Type)
}
if m.BindOptions != nil {
if mountPropagation, ok := swarmapi.Mount_BindOptions_MountPropagation_value[strings.ToUpper(string(m.BindOptions.Propagation))]; ok {
mount.BindOptions = &swarmapi.Mount_BindOptions{Propagation: swarmapi.Mount_BindOptions_MountPropagation(mountPropagation)}
} else if string(m.BindOptions.Propagation) != "" {
return nil, fmt.Errorf("invalid MountPropagation: %q", m.BindOptions.Propagation)
}
}
if m.VolumeOptions != nil {
mount.VolumeOptions = &swarmapi.Mount_VolumeOptions{
NoCopy: m.VolumeOptions.NoCopy,
Labels: m.VolumeOptions.Labels,
}
if m.VolumeOptions.DriverConfig != nil {
mount.VolumeOptions.DriverConfig = &swarmapi.Driver{
Name: m.VolumeOptions.DriverConfig.Name,
Options: m.VolumeOptions.DriverConfig.Options,
}
}
}
containerSpec.Mounts = append(containerSpec.Mounts, mount)
}
return containerSpec, nil
}