KUBERNETES: Flannel Pod Network Subnet Environment Configuration File Location And Its Content

/run/flannel/subnet.env is Flannel Pod Network Subnet Environment Configuration.

Below is content of file /run/flannel/subnet.env which shows flannel network. subnet, MTU and IP Masking settings.

FLANNEL_NETWORK=10.XX.0.0/16

FLANNEL_SUBNET=10.XX.0.1/24

FLANNEL_MTU=8950

FLANNEL_IPMASQ=true