From d7448b4c60fd884955850e4f5ddf0f51593da079 Mon Sep 17 00:00:00 2001
From: bluesky <chenchongbiao@deepin.org>
Date: Wed, 17 Jul 2024 14:49:46 +0800
Subject: [PATCH] fix: Create soft link for the watch file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

在容器运行时给容器内的监听文件创建软链接。文件修改后也能获取到修改。

Log:
---
 libs/linglong/src/linglong/runtime/container.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/libs/linglong/src/linglong/runtime/container.cpp b/libs/linglong/src/linglong/runtime/container.cpp
index ea4252d45..d7f0888e3 100644
--- a/libs/linglong/src/linglong/runtime/container.cpp
+++ b/libs/linglong/src/linglong/runtime/container.cpp
@@ -205,6 +205,22 @@ Container::run(const ocppi::runtime::config::types::Process &process) noexcept
       .uidMappings = {},
     });
 
+    QStringList watchFilesPaths = {"localtime", "resolv.conf", "timezone"};
+    for (const QString &watchFile: watchFilesPaths) {
+        if (symlink("/run/host/monitor/"+watchFile.toUtf8(), bundle.absoluteFilePath(watchFile).toUtf8()) != 0) {
+            qCritical() << "Failed to create symlink for" << watchFile;
+            continue;
+        }
+        this->cfg.mounts->push_back(ocppi::runtime::config::types::Mount{
+          .destination = "/etc/"+watchFile.toStdString(),
+          .gidMappings = {},
+          .options = { { "rbind", "copy-symlink" } },
+          .source = bundle.absoluteFilePath(watchFile).toStdString(),
+          .type = "bind",
+          .uidMappings = {},
+        });
+    }
+
     nlohmann::json json = this->cfg;
 
     {