#cloud-config yum_repos: kubernetes: name: kubernetes baseurl: https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64 enabled: true gpgcheck: true gpgkey: https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg packages: - [docker, 1.13.1] - [kubelet, 1.10.0] - nfs-utils write_files: - path: /etc/systemd/system/cloud-metadata.service content: | [Unit] Description=Digital Ocean metadata agent [Service] Type=oneshot Environment=OUTPUT=/run/metadata/digitalocean ExecStart=/usr/bin/mkdir -p /run/metadata ExecStart=/usr/bin/bash -c 'echo "DIGITALOCEAN_IPV4_PUBLIC_0=$(curl\ --url http://169.254.169.254/metadata/v1/interfaces/public/0/ipv4/address\ --retry 10)\nDIGITALOCEAN_IPV4_PRIVATE_0=$(curl\ --url http://169.254.169.254/metadata/v1/interfaces/private/0/ipv4/address\ --retry 10)" > $${OUTPUT}' - path: /etc/systemd/system/etcd-member.service content: | [Unit] Description=etcd-member Documentation=https://github.com/coreos/etcd Wants=network-online.target network.target After=network-online.target Requires=docker.service After=docker.service [Service] EnvironmentFile=/etc/etcd/etcd.conf ExecStartPre=/bin/mkdir -p /var/lib/etcd ExecStart=/usr/bin/docker run --rm --name etcd-member \ --net=host \ -v /usr/share/ca-certificates:/usr/share/ca-certificates:ro,z \ -v /etc/ssl/etcd:/etc/ssl/certs:ro,Z \ -v /var/lib/etcd:/var/lib/etcd:Z \ --env-file=/etc/etcd/etcd.conf \ quay.io/coreos/etcd:v3.3.3 ExecStop=/usr/bin/docker stop etcd-member Restart=on-failure RestartSec=10s TimeoutStartSec=0 LimitNOFILE=40000 [Install] WantedBy=multi-user.target - path: /etc/etcd/etcd.conf content: | ETCD_NAME=${etcd_name} ETCD_DATA_DIR=/var/lib/etcd ETCD_ADVERTISE_CLIENT_URLS=https://${etcd_domain}:2379 ETCD_INITIAL_ADVERTISE_PEER_URLS=https://${etcd_domain}:2380 ETCD_LISTEN_CLIENT_URLS=https://0.0.0.0:2379 ETCD_LISTEN_PEER_URLS=https://0.0.0.0:2380 ETCD_INITIAL_CLUSTER=${etcd_initial_cluster} ETCD_STRICT_RECONFIG_CHECK=true ETCD_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/server-ca.crt ETCD_CERT_FILE=/etc/ssl/certs/etcd/server.crt ETCD_KEY_FILE=/etc/ssl/certs/etcd/server.key ETCD_CLIENT_CERT_AUTH=true ETCD_PEER_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/peer-ca.crt ETCD_PEER_CERT_FILE=/etc/ssl/certs/etcd/peer.crt ETCD_PEER_KEY_FILE=/etc/ssl/certs/etcd/peer.key ETCD_PEER_CLIENT_CERT_AUTH=true - path: /etc/systemd/system/kubelet.service.d/10-typhoon.conf content: | [Unit] Description=Kubelet Requires=cloud-metadata.service After=cloud-metadata.service Wants=rpc-statd.service [Service] EnvironmentFile=/run/metadata/digitalocean ExecStartPre=/bin/mkdir -p /opt/cni/bin ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets ExecStartPre=/bin/mkdir -p /etc/kubernetes/inactive-manifests ExecStartPre=/bin/mkdir -p /var/lib/cni ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt" ExecStart= ExecStart=/usr/bin/kubelet \ --allow-privileged \ --anonymous-auth=false \ --cgroup-driver=systemd \ --client-ca-file=/etc/kubernetes/ca.crt \ --cluster_dns=${k8s_dns_service_ip} \ --cluster_domain=${cluster_domain_suffix} \ --cni-conf-dir=/etc/kubernetes/cni/net.d \ --exit-on-lock-contention \ --hostname-override=$${DIGITALOCEAN_IPV4_PRIVATE_0} \ --kubeconfig=/etc/kubernetes/kubeconfig \ --lock-file=/var/run/lock/kubelet.lock \ --network-plugin=cni \ --node-labels=node-role.kubernetes.io/master \ --node-labels=node-role.kubernetes.io/controller="true" \ --pod-manifest-path=/etc/kubernetes/manifests \ --register-with-taints=node-role.kubernetes.io/master=:NoSchedule \ --volume-plugin-dir=/var/lib/kubelet/volumeplugins Restart=always RestartSec=10 [Install] WantedBy=multi-user.target - path: /etc/systemd/system/kubelet.path content: | [Unit] Description=Watch for kubeconfig [Path] PathExists=/etc/kubernetes/kubeconfig [Install] WantedBy=multi-user.target - path: /etc/kubernetes/.keep - path: /etc/selinux/config content: | SELINUX=permissive - path: /etc/systemd/system/bootkube.service content: | [Unit] Description=Bootstrap a Kubernetes cluster ConditionPathExists=!/opt/bootkube/init_bootkube.done [Service] Type=oneshot RemainAfterExit=true WorkingDirectory=/opt/bootkube ExecStart=/opt/bootkube/bootkube-start ExecStartPost=/bin/touch /opt/bootkube/init_bootkube.done [Install] WantedBy=multi-user.target - path: /opt/bootkube/bootkube-start permissions: '0544' content: | #!/bin/bash -e # Wrapper for bootkube start [ -n "$(ls /opt/bootkube/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootkube/assets/manifests-*/* /opt/bootkube/assets/manifests && rm -rf /opt/bootkube/assets/manifests-* /usr/bin/docker run --rm --name bootkube \ --volume /etc/kubernetes:/etc/kubernetes:Z \ --volume /opt/bootkube/assets:/assets:Z \ --entrypoint=/bootkube \ quay.io/coreos/bootkube:v0.11.0 start --asset-dir=/assets runcmd: - [systemctl, daemon-reload] - [systemctl, enable, docker.service] - [systemctl, start, --no-block, docker.service] - [systemctl, enable, etcd-member.service] - [systemctl, start, --no-block, etcd-member.service] - [systemctl, enable, cloud-metadata.service] - [systemctl, enable, kubelet.path] - [systemctl, start, --no-block, kubelet.path] users: - default - name: fedora gecos: Fedora Admin sudo: ALL=(ALL) NOPASSWD:ALL groups: wheel,adm,systemd-journal,docker ssh-authorized-keys: - "${ssh_authorized_key}"