Revert "Merge pull request #29669 from vespa-engine/revert-29662-revert-29661-revert-29658-jonmv/zk-3.9.1-clients-2"

This reverts commit 9c8ba2608384ee79e143babd1e5a18a62166541f, reversing
changes made to 954785e4eb91286bd166c304e98042ec63b7eb84.

1 files changed, 26 insertions, 0 deletions

diff --git a/zookeeper-common/src/main/java/com/yahoo/vespa/zookeeper/tls/VespaZookeeperTlsContextUtils.java b/zookeeper-common/src/main/java/com/yahoo/vespa/zookeeper/tls/VespaZookeeperTlsContextUtils.java
new file mode 100644
index 00000000000..78de6c61e17
--- /dev/null
+++ b/zookeeper-common/src/main/java/com/yahoo/vespa/zookeeper/tls/VespaZookeeperTlsContextUtils.java
@@ -0,0 +1,26 @@
+package com.yahoo.vespa.zookeeper.tls;
+
+import com.yahoo.security.tls.ConfigFileBasedTlsContext;
+import com.yahoo.security.tls.TlsContext;
+import com.yahoo.security.tls.TransportSecurityUtils;
+import com.yahoo.vespa.defaults.Defaults;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Optional;
+
+/**
+ * @author jonmv
+ */
+public class VespaZookeeperTlsContextUtils {
+
+    private static final Path ZOOKEEPER_TLS_CONFIG_FILE = Path.of(Defaults.getDefaults().underVespaHome("var/zookeeper/conf/tls.conf.json"));
+    private static final TlsContext tlsContext = Files.exists(ZOOKEEPER_TLS_CONFIG_FILE)
+                                                 ? new ConfigFileBasedTlsContext(ZOOKEEPER_TLS_CONFIG_FILE, TransportSecurityUtils.getInsecureAuthorizationMode())
+                                                 : TransportSecurityUtils.getSystemTlsContext().orElse(null);
+
+    public static Optional<TlsContext> tlsContext() {
+        return Optional.ofNullable(tlsContext);
+    }
+
+}