The 5G Software Network Working Group as part of the 5G-PPP Initiative prepared this white paper (WP) to provide first insights and trigger discussions about 5G cloud-native design. The shift from the cloud ready to cloud native, from VM to container, from MANO to Kubernetes, etc is a must have to avoid the risk that 5G remains a niche connectivity gap-filler largely ignored by cloud applications and services boom. The WP highlights that we must ensure ascending compatibility with cloud environment in order to design a cloud-native 5G system and benefit from the best technologies from the cloud industry, essentially today the open source community, including micro-services the de-facto cloud industrial standard, and more general the service based architecture, and the most crucial technical assets from 5G-PPP Phase 1[1] and Phase 2[2] projects. [1] 5GPPP Phase 1 Projects - https://5GPPP.eu/5GPPP-phase-1-projects/ [2] 5GPPP Phase 2 Projects - https://5g-ppp.eu/5g-ppp-phase-2-projects/