239 lines
8.4 KiB
YAML
239 lines
8.4 KiB
YAML
variant: flatcar
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version: 1.0.0
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systemd:
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units:
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- name: etcd-member.service
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enabled: true
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contents: |
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[Unit]
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Description=etcd (System Container)
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Documentation=https://github.com/etcd-io/etcd
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Requires=docker.service
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After=docker.service
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[Service]
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Environment=ETCD_IMAGE=quay.io/coreos/etcd:v3.5.8
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ExecStartPre=/usr/bin/docker run -d \
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--name etcd \
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--network host \
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--env-file /etc/etcd/etcd.env \
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--user 232:232 \
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--volume /etc/ssl/etcd:/etc/ssl/certs:ro \
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--volume /var/lib/etcd:/var/lib/etcd:rw \
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$${ETCD_IMAGE}
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ExecStart=docker logs -f etcd
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ExecStop=docker stop etcd
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ExecStopPost=docker rm etcd
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Restart=always
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RestartSec=10s
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TimeoutStartSec=0
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LimitNOFILE=40000
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[Install]
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WantedBy=multi-user.target
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- name: docker.service
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enabled: true
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- name: locksmithd.service
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mask: true
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- name: kubelet.path
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enabled: true
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contents: |
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[Unit]
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Description=Watch for kubeconfig
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[Path]
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PathExists=/etc/kubernetes/kubeconfig
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[Install]
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WantedBy=multi-user.target
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- name: wait-for-dns.service
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enabled: true
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contents: |
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[Unit]
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Description=Wait for DNS entries
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Wants=systemd-resolved.service
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Before=kubelet.service
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[Service]
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Type=oneshot
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RemainAfterExit=true
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ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
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[Install]
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RequiredBy=kubelet.service
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RequiredBy=etcd-member.service
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- name: kubelet.service
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contents: |
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[Unit]
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Description=Kubelet (System Container)
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Requires=docker.service
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After=docker.service
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Wants=rpc-statd.service
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[Service]
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Environment=KUBELET_IMAGE=quay.io/poseidon/kubelet:v1.27.2
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ExecStartPre=/bin/mkdir -p /etc/cni/net.d
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ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
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ExecStartPre=/bin/mkdir -p /opt/cni/bin
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ExecStartPre=/bin/mkdir -p /var/lib/calico
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ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
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ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
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ExecStartPre=/usr/bin/docker run -d \
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--name kubelet \
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--privileged \
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--pid host \
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--network host \
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-v /etc/cni/net.d:/etc/cni/net.d:ro \
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-v /etc/kubernetes:/etc/kubernetes:ro \
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-v /etc/machine-id:/etc/machine-id:ro \
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-v /usr/lib/os-release:/etc/os-release:ro \
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-v /lib/modules:/lib/modules:ro \
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-v /run:/run \
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-v /sys/fs/cgroup:/sys/fs/cgroup \
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-v /var/lib/calico:/var/lib/calico:ro \
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-v /var/lib/containerd:/var/lib/containerd \
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-v /var/lib/kubelet:/var/lib/kubelet:rshared \
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-v /var/log:/var/log \
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-v /opt/cni/bin:/opt/cni/bin \
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$${KUBELET_IMAGE} \
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--bootstrap-kubeconfig=/etc/kubernetes/kubeconfig \
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--config=/etc/kubernetes/kubelet.yaml \
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--container-runtime-endpoint=unix:///run/containerd/containerd.sock \
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--hostname-override=${domain_name} \
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--kubeconfig=/var/lib/kubelet/kubeconfig \
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--node-labels=node.kubernetes.io/controller="true" \
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--register-with-taints=node-role.kubernetes.io/controller=:NoSchedule
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ExecStart=docker logs -f kubelet
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ExecStop=docker stop kubelet
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ExecStopPost=docker rm kubelet
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Restart=always
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RestartSec=10
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[Install]
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WantedBy=multi-user.target
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- name: bootstrap.service
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contents: |
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[Unit]
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Description=Kubernetes control plane
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Wants=docker.service
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After=docker.service
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ConditionPathExists=!/opt/bootstrap/bootstrap.done
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[Service]
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Type=oneshot
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RemainAfterExit=true
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WorkingDirectory=/opt/bootstrap
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Environment=KUBELET_IMAGE=quay.io/poseidon/kubelet:v1.27.2
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ExecStart=/usr/bin/docker run \
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-v /etc/kubernetes/pki:/etc/kubernetes/pki:ro \
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-v /opt/bootstrap/assets:/assets:ro \
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-v /opt/bootstrap/apply:/apply:ro \
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--entrypoint=/apply \
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$${KUBELET_IMAGE}
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ExecStartPost=/bin/touch /opt/bootstrap/bootstrap.done
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[Install]
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WantedBy=multi-user.target
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storage:
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directories:
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- path: /var/lib/etcd
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mode: 0700
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overwrite: true
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- path: /etc/kubernetes
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mode: 0755
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files:
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- path: /etc/hostname
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mode: 0644
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contents:
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inline:
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${domain_name}
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- path: /etc/kubernetes/kubelet.yaml
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mode: 0644
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contents:
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inline: |
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apiVersion: kubelet.config.k8s.io/v1beta1
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kind: KubeletConfiguration
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authentication:
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anonymous:
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enabled: false
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webhook:
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enabled: true
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x509:
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clientCAFile: /etc/kubernetes/ca.crt
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authorization:
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mode: Webhook
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cgroupDriver: systemd
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clusterDNS:
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- ${cluster_dns_service_ip}
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clusterDomain: ${cluster_domain_suffix}
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healthzPort: 0
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rotateCertificates: true
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shutdownGracePeriod: 45s
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shutdownGracePeriodCriticalPods: 30s
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staticPodPath: /etc/kubernetes/manifests
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readOnlyPort: 0
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resolvConf: /run/systemd/resolve/resolv.conf
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volumePluginDir: /var/lib/kubelet/volumeplugins
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- path: /opt/bootstrap/layout
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mode: 0544
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contents:
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inline: |
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#!/bin/bash -e
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mkdir -p -- auth tls/etcd tls/k8s static-manifests manifests/coredns manifests-networking
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awk '/#####/ {filename=$2; next} {print > filename}' assets
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mkdir -p /etc/ssl/etcd/etcd
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mkdir -p /etc/kubernetes/pki
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mv tls/etcd/{peer*,server*} /etc/ssl/etcd/etcd/
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mv tls/etcd/etcd-client* /etc/kubernetes/pki/
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chown -R etcd:etcd /etc/ssl/etcd
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chmod -R 500 /etc/ssl/etcd
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chmod -R 700 /var/lib/etcd
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mv auth/* /etc/kubernetes/pki/
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mv tls/k8s/* /etc/kubernetes/pki/
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mkdir -p /etc/kubernetes/manifests
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mv static-manifests/* /etc/kubernetes/manifests/
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mkdir -p /opt/bootstrap/assets
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mv manifests /opt/bootstrap/assets/manifests
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mv manifests-networking/* /opt/bootstrap/assets/manifests/
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rm -rf assets auth static-manifests tls manifests-networking
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- path: /opt/bootstrap/apply
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mode: 0544
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contents:
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inline: |
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#!/bin/bash -e
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export KUBECONFIG=/etc/kubernetes/pki/admin.conf
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until kubectl version; do
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echo "Waiting for static pod control plane"
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sleep 5
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done
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until kubectl apply -f /assets/manifests -R; do
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echo "Retry applying manifests"
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sleep 5
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done
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- path: /etc/systemd/logind.conf.d/inhibitors.conf
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contents:
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inline: |
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[Login]
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InhibitDelayMaxSec=45s
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- path: /etc/sysctl.d/max-user-watches.conf
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mode: 0644
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contents:
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inline: |
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fs.inotify.max_user_watches=16184
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- path: /etc/etcd/etcd.env
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mode: 0644
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contents:
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inline: |
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ETCD_NAME=${etcd_name}
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ETCD_DATA_DIR=/var/lib/etcd
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ETCD_ADVERTISE_CLIENT_URLS=https://${domain_name}:2379
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ETCD_INITIAL_ADVERTISE_PEER_URLS=https://${domain_name}:2380
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ETCD_LISTEN_CLIENT_URLS=https://0.0.0.0:2379
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ETCD_LISTEN_PEER_URLS=https://0.0.0.0:2380
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ETCD_LISTEN_METRICS_URLS=http://0.0.0.0:2381
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ETCD_INITIAL_CLUSTER=${etcd_initial_cluster}
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ETCD_STRICT_RECONFIG_CHECK=true
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ETCD_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/server-ca.crt
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ETCD_CERT_FILE=/etc/ssl/certs/etcd/server.crt
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ETCD_KEY_FILE=/etc/ssl/certs/etcd/server.key
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ETCD_CLIENT_CERT_AUTH=true
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ETCD_PEER_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/peer-ca.crt
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ETCD_PEER_CERT_FILE=/etc/ssl/certs/etcd/peer.crt
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ETCD_PEER_KEY_FILE=/etc/ssl/certs/etcd/peer.key
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ETCD_PEER_CLIENT_CERT_AUTH=true
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passwd:
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users:
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- name: core
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ssh_authorized_keys:
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- ${ssh_authorized_key}
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