Most of today's CI/CD pipeline tools and platforms are built on containers as runtimes. Many of our teams are using Kaniko to build container images from within those container-based pipelines. This comes as part of a trend away from Docker as the de facto standard for container runtimes. With Kaniko, you can build your images without using a Docker daemon. This helps avoid the security issue of Docker's "privileged" mode, which would be necessary for any "Docker-in-Docker" activity. Moreover, you don't have to assume that your pipeline has access to a Docker daemon in the first place, which cannot be taken for granted anymore and often requires extra configuration.