Use local_termination_grace_seconds when testing LinuxSandbox availab…

…ility (#18568)

A 1s timeout was introduced in checking whether LinuxSandbox is available, to prevent a complete hangup on broken systems. However, it turned out that it occasionally results in misjudging that linux-sandbox being not available.
`local_termination_grace_seconds` defaults to 15s, which hopefully gives more headroom and configurability in various setups.

Fixes #18071

Closes #18151.

PiperOrigin-RevId: 536953768
Change-Id: I5d344ee5bf06cb9b13a2cba9d077f0981f4430a3

Co-authored-by: Takeo Sawada <myc.monad@gmail.com>

src/main/java/com/google/devtools/build/lib/sandbox/LinuxSandboxedSpawnRunner.java

@@ -34,6 +34,7 @@
 import com.google.devtools.build.lib.events.Reporter;
 import com.google.devtools.build.lib.exec.TreeDeleter;
 import com.google.devtools.build.lib.exec.local.LocalEnvProvider;
+import com.google.devtools.build.lib.exec.local.LocalExecutionOptions;
 import com.google.devtools.build.lib.exec.local.PosixLocalEnvProvider;
 import com.google.devtools.build.lib.profiler.Profiler;
 import com.google.devtools.build.lib.profiler.SilentCloseable;
@@ -94,10 +95,11 @@ public static boolean isSupported(final CommandEnvironment cmdEnv) throws Interr
 
   private static boolean computeIsSupported(CommandEnvironment cmdEnv, Path linuxSandbox)
       throws InterruptedException {
+    LocalExecutionOptions options = cmdEnv.getOptions().getOptions(LocalExecutionOptions.class);
     ImmutableList<String> linuxSandboxArgv =
         LinuxSandboxCommandLineBuilder.commandLineBuilder(
                 linuxSandbox, ImmutableList.of("/bin/true"))
-            .setTimeout(Duration.ofSeconds(1))
+            .setTimeout(options.getLocalSigkillGraceSeconds())
             .build();
     ImmutableMap<String, String> env = ImmutableMap.of();
     Path execRoot = cmdEnv.getExecRoot();