containerd build clean on Solaris (#203)

* containerd build clean on Solaris

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

* Vendor golang.org/x/sys

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

containerd-shim/console.go

@@ -1,3 +1,5 @@
+// +build !solaris
+
 package main
 
 import (

containerd-shim/console_solaris.go

@@ -0,0 +1,14 @@
+// +build solaris
+
+package main
+
+import (
+	"errors"
+	"os"
+)
+
+// NewConsole returns an initalized console that can be used within a container by copying bytes
+// from the master side to the slave that is attached as the tty for the container's init process.
+func newConsole(uid, gid int) (*os.File, string, error) {
+	return nil, "", errors.New("newConsole not implemented on Solaris")
+}

containerd-shim/process.go

@@ -166,11 +166,9 @@ func (p *process) start() error {
 	cmd.Stdin = p.stdio.stdin
 	cmd.Stdout = p.stdio.stdout
 	cmd.Stderr = p.stdio.stderr
-	// set the parent death signal to SIGKILL so that if the shim dies the container
-	// process also dies
-	cmd.SysProcAttr = &syscall.SysProcAttr{
-		Pdeathsig: syscall.SIGKILL,
-	}
+	// Call out to setPDeathSig to set SysProcAttr as elements are platform specific
+	cmd.SysProcAttr = setPDeathSig()
+
 	if err := cmd.Start(); err != nil {
 		if exErr, ok := err.(*exec.Error); ok {
 			if exErr.Err == exec.ErrNotFound || exErr.Err == os.ErrNotExist {

containerd-shim/process_pdeathsig.go

@@ -0,0 +1,15 @@
+// +build !solaris
+
+package main
+
+import (
+	"syscall"
+)
+
+// setPDeathSig sets the parent death signal to SIGKILL so that if the
+// shim dies the container process also dies.
+func setPDeathSig() *syscall.SysProcAttr {
+	return &syscall.SysProcAttr{
+		Pdeathsig: syscall.SIGKILL,
+	}
+}

containerd-shim/process_pdeathsig_unsupported.go

@@ -0,0 +1,12 @@
+// +build solaris
+
+package main
+
+import (
+	"syscall"
+)
+
+// setPDeathSig is a no-op on Solaris as Pdeathsig is not defined.
+func setPDeathSig() *syscall.SysProcAttr {
+	return nil
+}