add start script for standalone containers

1 files changed, 52 insertions, 0 deletions

diff --git a/client/go/script-utils/standalone/start.go b/client/go/script-utils/standalone/start.go
new file mode 100644
index 00000000000..7b929730f5a
--- /dev/null
+++ b/client/go/script-utils/standalone/start.go
@@ -0,0 +1,52 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+// Author: arnej
+
+// for starting standalone jdisc containers
+package standalone
+
+import (
+	"os"
+
+	"github.com/vespa-engine/vespa/client/go/jvm"
+	"github.com/vespa-engine/vespa/client/go/trace"
+	"github.com/vespa-engine/vespa/client/go/util"
+	"github.com/vespa-engine/vespa/client/go/vespa"
+)
+
+func commonPreChecks() {
+	if doTrace := os.Getenv("TRACE_JVM_STARTUP"); doTrace != "" {
+		trace.AdjustVerbosity(1)
+	}
+	if doDebug := os.Getenv("DEBUG_JVM_STARTUP"); doDebug != "" {
+		trace.AdjustVerbosity(2)
+	}
+	veHome := vespa.FindAndVerifyVespaHome()
+	err := os.Chdir(veHome)
+	if err != nil {
+		util.JustExitWith(err)
+	}
+	err = vespa.LoadDefaultEnv()
+	if err != nil {
+		util.JustExitWith(err)
+	}
+}
+
+func StartStandaloneContainer(extraArgs []string) int {
+	commonPreChecks()
+	util.TuneResourceLimits()
+	serviceName := os.Getenv("VESPA_SERVICE_NAME")
+	if serviceName == "" {
+		util.JustExitMsg("Missing service name, ensure VESPA_SERVICE_NAME is set in the environment")
+	}
+	c := jvm.NewStandaloneContainer(serviceName)
+	jvmOpts := c.JvmOptions()
+	for _, extra := range extraArgs {
+		jvmOpts.AddOption(extra)
+	}
+	minFallback := jvm.MegaBytesOfMemory(128)
+	maxFallback := jvm.MegaBytesOfMemory(2048)
+	jvmOpts.AddDefaultHeapSizeArgs(minFallback, maxFallback)
+	c.Exec()
+	// unreachable:
+	return 1
+}