[Feature] make system `core_pattern` more smarter for container

[Wine93]

core 文件是排查问题的重要依据来源，目前我们可以在配置文件中配置 core_dir 将容器内存储 core 文件的目录映射到宿主机上。但是目前存在的问题是：

• 由于系统和容器只能共享一个 core_pattern 一个配置，如果系统所设置的 core_pattern 在容器内没有对应的目录，会导致无法生成 core 文件
• 因此我们必须将系统的 core_pattern 设置为 /core/xxx，并且在容器内提前创建了 /core 目录

由于以上的限制，导致我们的 core 设置生成变得有些麻烦，常常因为用户没有设置 core_pattern 为 /core 的前缀导致 core 生成失败。 我们希望你能帮助我们改进这个机制，用户只需要配置 core_dir 配置，curveadm 帮助自动适配系统目前的 core_pattern 以生成 core 文件。这也许有些挑战，但是这对我们帮助很大 :)

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[zhanghuidinah]

• This issue has been chosen for community developer activities. Welcome to feel free to try it. After the PR is merged, you will receive a gift package and a certificate as a community contributor.

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[peter5232]

请问为什么 “系统和容器只能共享一个 core_pattern 一个配置”呢

[aspirer]

请问为什么 “系统和容器只能共享一个 core_pattern 一个配置”呢

系统和容器只能共享一个 core_pattern，这是因为 core_pattern 是一个内核参数，它决定了当进程崩溃时，系统如何生成和存储 core 文件。core_pattern 是一个全局的设置，它不能被每个容器单独配置，而是由宿主机统一管理。如果容器中的进程崩溃，它会使用宿主机的 core_pattern 来生成 core 文件，并且将其存储在宿主机的文件系统中

[Songjf-ttk]

Hello, I am a student from Hunan University. My major is Software Engineering. I am familiar with C++ and Golang, and I am very interested in cloud-native and storage systems. My technical strengths include C++ server development and kernel virtualization techniques. I chose this issue because I have some understanding of curveadm and want to gain a deeper understanding of curveadm through the process of completing the issue. I am confident in completing this topic, and I have previously submitted two PRs to the community：

1. Add debug mode
2. Fix variable position

[caoxianfei1]

Hello, I am a student from Hunan University. My major is Software Engineering. I am familiar with C++ and Golang, and I am very interested in cloud-native and storage systems. My technical strengths include C++ server development and kernel virtualization techniques. I chose this issue because I have some understanding of curveadm and want to gain a deeper understanding of curveadm through the process of completing the issue. I am confident in completing this topic, and I have previously submitted two PRs to the community：

1. Add debug mode
2. Fix variable position

welcome!