Forked from andrewwippler/install kubeadm kubelet kubectl
Created
June 5, 2018 12:50
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Installing kubernetes on CentOS 7 minimal (needs to be initialized after run)
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| # update and install ntp | |
| yum update -y | |
| yum install ntp -y | |
| systemctl enable ntpd --now | |
| # Install crictl, for Cri-o, but did not work with k8s 1.10 as of yet. | |
| curl -L -O https://github.com/kubernetes-incubator/cri-tools/releases/download/v1.0.0-beta.0/crictl-v1.0.0-beta.0-linux-amd64.tar.gz | |
| tar xvf crictl-v1.0.0-beta.0-linux-amd64.tar.gz | |
| # mv crictl /usr/local/bin/crictl | |
| cat > /etc/yum.repos.d/virt7-container-common-candidate.repo << EOF | |
| [virt7-container-common-candidate] | |
| name=virt7-container-common-candidate | |
| baseurl=https://cbs.centos.org/repos/virt7-container-common-candidate/x86_64/os/ | |
| enabled=1 | |
| gpgcheck=0 | |
| EOF | |
| # skip cri-o for now, use docker instead | |
| # yum install cri-o -y | |
| # systemctl enable crio --now | |
| yum install docker -y | |
| systemctl enable docker --now | |
| # install k8s | |
| cat < /etc/yum.repos.d/kubernetes.repo | |
| [kubernetes] | |
| name=Kubernetes | |
| baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch | |
| enabled=1 | |
| gpgcheck=1 | |
| repo_gpgcheck=1 | |
| gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg | |
| EOF | |
| setenforce 0 | |
| yum install -y kubelet kubeadm kubectl nfs-utils | |
| # I needed nfs-utils to mount nfs volumes | |
| # extra kubelet things for cri-o | |
| #cat < /etc/systemd/system/kubelet.service.d/05-kubeadm.conf | |
| #[Service] | |
| #Environment="KUBELET_EXTRA_ARGS=--container-runtime=remote --container-runtime-endpoint=unix:///var/run/crio/crio.sock" | |
| #EOF | |
| #sed -i "s/cgroup-driver=systemd/cgroup-driver=cgroupfs/g" /etc/systemd/system/kubelet.service.d/10-kubeadm.conf | |
| systemctl daemon-reload | |
| systemctl enable kubelet --now | |
| # k8s sysctl settings on CentOS | |
| cat < /etc/sysctl.d/k8s.conf | |
| net.bridge.bridge-nf-call-ip6tables = 1 | |
| net.bridge.bridge-nf-call-iptables = 1 | |
| EOF | |
| sysctl --system |
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