cce78d4b5d
This change no longer requires the use of a UtlityVM on Windows to convert the layer tar to an ext4 vhd for LCOW. This has a significant performance boost that makes linux/amd64 layer extraction comparable to native Linux performance. Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>
72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
package runhcs
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"syscall"
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"time"
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"github.com/Microsoft/hcsshim/internal/guid"
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)
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// ContainerState represents the platform agnostic pieces relating to a
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// running container's status and state
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type ContainerState struct {
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// Version is the OCI version for the container
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Version string `json:"ociVersion"`
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// ID is the container ID
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ID string `json:"id"`
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// InitProcessPid is the init process id in the parent namespace
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InitProcessPid int `json:"pid"`
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// Status is the current status of the container, running, paused, ...
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Status string `json:"status"`
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// Bundle is the path on the filesystem to the bundle
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Bundle string `json:"bundle"`
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// Rootfs is a path to a directory containing the container's root filesystem.
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Rootfs string `json:"rootfs"`
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// Created is the unix timestamp for the creation time of the container in UTC
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Created time.Time `json:"created"`
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// Annotations is the user defined annotations added to the config.
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Annotations map[string]string `json:"annotations,omitempty"`
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// The owner of the state directory (the owner of the container).
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Owner string `json:"owner"`
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}
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// GetErrorFromPipe returns reads from `pipe` and verifies if the operation
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// returned success or error. If error converts that to an error and returns. If
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// `p` is not nill will issue a `Kill` and `Wait` for exit.
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func GetErrorFromPipe(pipe io.Reader, p *os.Process) error {
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serr, err := ioutil.ReadAll(pipe)
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if err != nil {
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return err
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}
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if bytes.Equal(serr, ShimSuccess) {
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return nil
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}
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extra := ""
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if p != nil {
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p.Kill()
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state, err := p.Wait()
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if err != nil {
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panic(err)
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}
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extra = fmt.Sprintf(", exit code %d", state.Sys().(syscall.WaitStatus).ExitCode)
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}
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if len(serr) == 0 {
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return fmt.Errorf("unknown shim failure%s", extra)
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}
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return errors.New(string(serr))
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}
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// VMPipePath returns the named pipe path for the vm shim.
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func VMPipePath(hostUniqueID guid.GUID) string {
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return SafePipePath("runhcs-vm-" + hostUniqueID.String())
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}
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