cka-SVV/setup-docker.sh
2020-11-04 09:22:09 +01:00

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#!/bin/bash
# script that runs
# https://kubernetes.io/docs/setup/production-environment/container-runtime
yum install -y vim yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# notice that only verified versions of Docker may be installed
# verify the documentation to check if a more recent version is available
yum install -y docker-ce
[ ! -d /etc/docker ] && mkdir /etc/docker
cat > /etc/docker/daemon.json <<EOF
{
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
},
"storage-driver": "overlay2",
"storage-opts": [
"overlay2.override_kernel_check=true"
]
}
EOF
mkdir -p /etc/systemd/system/docker.service.d
systemctl daemon-reload
systemctl restart docker
systemctl enable docker
systemctl disable --now firewalld