vm: add the proxyapp support (#3269)

* vm: add pool.Close() support
* vm: add proxyapp client implementation
* vm/proxyapp: autogenerate mocks
* vm/proxyapp: add proxyapp tests
* pkg/mgrconfig: add proxyapp type tests

1 files changed, 9 insertions, 0 deletions

diff --git a/pkg/osutil/osutil.go b/pkg/osutil/osutil.go
index 0194a616e..7eb033652 100644
--- a/pkg/osutil/osutil.go
+++ b/pkg/osutil/osutil.go
@@ -5,6 +5,7 @@ package osutil
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -79,6 +80,14 @@ func Run(timeout time.Duration, cmd *exec.Cmd) ([]byte, error) {
 	return output.Bytes(), nil
 }
 
+// CommandContext is similar to os/exec.CommandContext, but also sets PDEATHSIG to SIGKILL on linux,
+// i.e. the child will be killed immediately.
+func CommandContext(ctx context.Context, bin string, args ...string) *exec.Cmd {
+	cmd := exec.CommandContext(ctx, bin, args...)
+	setPdeathsig(cmd, true)
+	return cmd
+}
+
 // Command is similar to os/exec.Command, but also sets PDEATHSIG to SIGKILL on linux,
 // i.e. the child will be killed immediately.
 func Command(bin string, args ...string) *exec.Cmd {