digraph ecosystem { developer [shape="circle" label="developer"]; gerrit [shape="folder" label="Gerrit\ncode review"]; CI [shape="box" label="CI system"]; autotestenv [shape="octagon" label="env for automated tests"]; mantestenv [shape="octagon" label="env for manual testing"]; prodenv [shape="doubleoctagon" label="production"]; developer -> gerrit; gerrit -> developer; gerrit -> CI; CI -> gerrit; CI -> autotestenv; CI -> mantestenv CI -> prodenv; }