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Flannel

Installing

To install flannel - use --networking flannel-vxlan (recommended) or --networking flannel-udp (legacy). --networking flannel now selects flannel-vxlan.

export ZONES=mylistofzone
kops create cluster \
  --zones $ZONES \
  --networking flannel \
  --yes \
  --name myclustername.mydns.io

Configuring

Configuring Flannel iptables resync period

As of Kops 1.12.0, Flannel iptables resync option is configurable via editing a cluster and adding iptablesResyncSeconds option to spec:

  networking:
    flannel:
      iptablesResyncSeconds: 360