TIPS Appunti Cluster Kuber

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From Oracle Linux 8.x


yum remove buildah skopeo podman containers-common atomic-registries docker container-tools -y


cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
br_netfilter
EOF
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sudo sysctl --system


sudo yum install -y yum-utils
sudo yum-config-manager \
   --add-repo \
   https://download.docker.com/linux/centos/docker-ce.repo


cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf overlay br_netfilter EOF

sudo modprobe overlay
sudo modprobe br_netfilter
# Setup required sysctl params, these persist across reboots.
cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF
# Apply sysctl params without reboot
sudo sysctl --system