acg-kthw-net-conf-notes.md

acg-kthw-net-conf-notes.md

Installing Weave Net on ACG-KTHW Worker Nodes

# I had to go back and remove CNI bridge and loopback config files to enable communication through Weave Net
sudo mv /etc/cni/net.d/10-bridge.conf /etc/cni/net.d/99-loopback.conf ~
# sudo mv ~/10-bridge.conf ~/99-loopback.conf /etc/cni/net.d

# see https://github.com/weaveworks/weave/issues/3960
# cloud.weave.works was shut down so we need to download the manifest file straight from their repository release url
wget https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml

# edit the manifest file and append the following env var lines to the weave container:
vim weave-daemonset-k8s.yaml
<<EOF
                - name: IPALLOC_RANGE
                  value: 10.200.0.0/16
EOF

# use this fix to handle the cgroups error: https://github.com/docker/for-linux/issues/219#issuecomment-375160449
# run it on all worker nodes at every instance restart
sudo mkdir /sys/fs/cgroup/systemd
sudo mount -t cgroup -o none,name=systemd cgroup /sys/fs/cgroup/systemd
# should be using cgroupsv2 though

# port 10250 needs to be exposed on all worker nodes to enable container attachment
sudo ufw allow 10250