Docker is considered a safe and robust method for running infrastructure, but its safety when used in or for "Chengdu" involves both technical security practices and regional accessibility. Technically, Docker provides strong isolation through namespaces and control groups, but it is only as secure as its configuration; risks include using untrusted images from public repositories, running containers in privileged mode, or failing to secure the Docker daemon. To ensure safety, users should use official images, run containers as non-root users, and regularly scan for vulnerabilities. Regarding regional usage, while Docker is not banned in China, developers in Chengdu often face network restrictions that make pulling images from Docker Hub slow or impossible. To safely and effectively use Docker in this environment, it is recommended to use trusted local image mirrors provided by cloud vendors like Alibaba or Huawei, or utilize a VPN or proxy to bypass the Great Firewall. Ultimately, if you use verified images and follow security best practices like restricting resource consumption and securing API endpoints, Docker is a secure environment for deployment.