An organization uses microservices with limited container lifecycles. The security team wants continuous visibility into each container’s environment without changing the application code. The plan is to deploy an additional component that monitors what happens inside the main container as it runs. Which scanning approach is best for this scenario?
Perform a code analysis that searches the entire codebase for unsafe calls
Examine container image layers before the service is started
Use an approach that attempts to identify open services through hidden port checks
Deploy a small companion container to capture real-time details in the running environment
Sidecar scanning places a companion container that actively monitors a running environment. This is effective for short-lifecycle services because it observes runtime behavior. A code review approach inspects source code, which does not capture real-time events. A stealth method that identifies open ports focuses on network visibility rather than application behavior. Checking container images before launch provides insight into static layers, but does not monitor live processes.
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What is a sidecar container?
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Why are limited container lifecycles a challenge for traditional security approaches?