Docker in docker routing within Kubernetes
问题 I've network related issue on the Kubernetes host, using Calico network layer. For continuous integration I need to run docker in docker, but running simple docker build with this Dockerfile : FROM praqma/network-multitool AS build RUN route RUN ping -c 4 google.com RUN traceroute google.com produces output: Step 1/4 : FROM praqma/network-multitool AS build ---> 3619cb81e582 Step 2/4 : RUN route ---> Running in 80bda13a9860 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref