Overall, Chef, Puppet, and Docker are the top three DevOps tools (on 32 percent, 32 percent, and 27 percent, respectively). However, Docker is the fastest growing with adoption more than doubling year-over-year from 13 percent in 2015 to 27 percent in 2016. In the enterprise, Docker also saw more than two times growth (from 14 percent to 29 percent).