Deploy a standalone Docker application on the server

This article provides a detailed overview of the complete process and best practices for deploying and managing Docker containers in a virtual machine. First, it guides users on configuring GPG keys to support the Pass password manager and setting up Docker credential storage to enable passwordless login for Docker Desktop. Second, it emphasizes the planning of persistent container volumes, highlighting the importance of mounting host directories to ensure data consistency and sharing. It also provides configuration references for commonly used containers and scripts for running them as non-root users. Additionally, the article explains port mapping, using restart policies to ensure containers start automatically with the host, and safely upgrading containers by deleting and recreating them. For scenarios involving multiple container dependencies, it recommends using Docker Compose to define service networks and volumes, combined with systemd for automated management. Finally, the article summarizes the need to manage the VM and containers separately in hybrid deployments and suggests a gradual transition to a containerized architecture to ensure system stability and maintainability.