When building DevOps or continuous delivery practices you can learn a great deal from others. What choices did they make, what practices did they put in place, and how did they connect the dots? At Sonatype, we pulled together a set of 21 reference architectures for folks building continuous delivery and DevOps practices using Docker. Why? After 3,000 DevOps professionals attended our webinar on «Continuous Integration using Docker» discussing just one reference architecture example, we recognized there was a strong interest in the community to learn more. That’s why we assembled 20 more reference architectures into this collection.