Merge pull request #24857 from vespa-engine/arnej/add-configserver-startup-in-go

Arnej/add configserver startup in go

1 files changed, 60 insertions, 0 deletions

diff --git a/client/go/script-utils/configserver/runserver.go b/client/go/script-utils/configserver/runserver.go
new file mode 100644
index 00000000000..bf498941128
--- /dev/null
+++ b/client/go/script-utils/configserver/runserver.go
@@ -0,0 +1,60 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+// Author: arnej
+
+package configserver
+
+import (
+	"fmt"
+
+	"github.com/vespa-engine/vespa/client/go/defaults"
+	"github.com/vespa-engine/vespa/client/go/trace"
+	"github.com/vespa-engine/vespa/client/go/util"
+)
+
+const (
+	PROG_NAME = "vespa-runserver"
+)
+
+type RunServer struct {
+	ServiceName string
+	Args        []string
+}
+
+func (rs *RunServer) PidFile() string {
+	varRunDir := defaults.UnderVespaHome("var/run")
+	return fmt.Sprintf("%s/%s.pid", varRunDir, rs.ServiceName)
+}
+
+func (rs *RunServer) ProgPath() string {
+	p := fmt.Sprintf("%s/bin64/%s", defaults.VespaHome(), PROG_NAME)
+	if util.IsExecutableFile(p) {
+		return p
+	}
+	p = fmt.Sprintf("%s/bin/%s", defaults.VespaHome(), PROG_NAME)
+	if util.IsExecutableFile(p) {
+		return p
+	}
+	panic(fmt.Errorf("not an executable file: %s", p))
+}
+
+func (rs *RunServer) WouldRun() bool {
+	backticks := util.BackTicksForwardStderr
+	out, err := backticks.Run(rs.ProgPath(), "-s", rs.ServiceName, "-p", rs.PidFile(), "-W")
+	trace.Trace("output from -W:", out, "error:", err)
+	return err == nil
+}
+
+func (rs *RunServer) Exec(prog string) {
+	argv := []string{
+		PROG_NAME,
+		"-s", rs.ServiceName,
+		"-p", rs.PidFile(),
+		"--",
+		prog,
+	}
+	for _, arg := range rs.Args {
+		argv = append(argv, arg)
+	}
+	err := util.Execvp(rs.ProgPath(), argv)
+	util.JustExitWith(err)
+}