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Add specific error message for missing shim

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Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2016-03-17 14:04:48 -07:00
parent 797e79774f
commit 366dcc08fa
1 changed files with 16 additions and 8 deletions
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24
runtime/container_linux.go
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@ -154,13 +154,9 @@ func (c *container) Start(checkpoint string, s Stdio) (Process, error) {
if err != nil {
return nil, err
}
if err := cmd.Start(); err != nil {
if err := c.startCmd(InitProcessID, cmd, p); err != nil {
return nil, err
}
if err := waitForStart(p, cmd); err != nil {
return nil, err
}
c.processes[InitProcessID] = p
return p, nil
}
@ -198,14 +194,26 @@ func (c *container) Exec(pid string, pspec specs.ProcessSpec, s Stdio) (pp Proce
if err != nil {
return nil, err
}
if err := cmd.Start(); err != nil {
if err := c.startCmd(pid, cmd, p); err != nil {
return nil, err
}
return p, nil
}
func (c *container) startCmd(pid string, cmd *exec.Cmd, p *process) error {
if err := cmd.Start(); err != nil {
if exErr, ok := err.(*exec.Error); ok {
if exErr.Err == exec.ErrNotFound || exErr.Err == os.ErrNotExist {
return fmt.Errorf("containerd-shim not installed on system")
}
}
return err
}
if err := waitForStart(p, cmd); err != nil {
return nil, err
return err
}
c.processes[pid] = p
return p, nil
return nil
}
func (c *container) getLibctContainer() (libcontainer.Container, error) {