<ul data-eligibleForWebStory="false">Docker is commonly used for deploying lightweight applications, but lacks security and performance tuning by default.Guide covers how to install and optimize Docker on CentOS, secure containers using SafeLine WAF, and optimize Docker settings.SafeLine WAF is a free Web Application Firewall that protects against various attacks - install process and securing steps included.Optimizing Docker, adding SafeLine WAF, and configuring settings helps improve security and performance for Docker deployments.