typhoon/google-cloud/container-linux/controllers/cl/controller.yaml.tmpl
Dalton Hubble fb5f63c8be google-cloud: Update kubelet.service unit to match upstream
* Mount host /opt/cni/bin in Kubelet to use host's CNI plugins
* Switch /var/run/kubelet-pod.uuid to /var/cache/kubelet-pod.uuid
to persist between reboots and cleanup old Kubelet pods
* Organize Kubelet flags in alphabetical order
2017-09-14 15:47:44 -07:00

148 lines
5.8 KiB
Cheetah

---
systemd:
units:
- name: docker.service
enable: true
- name: locksmithd.service
mask: true
- name: wait-for-dns.service
enable: true
contents: |
[Unit]
Description=Wait for DNS entries
Wants=systemd-resolved.service
Before=kubelet.service
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
[Install]
RequiredBy=kubelet.service
- name: kubelet.service
enable: true
contents: |
[Unit]
Description=Kubelet via Hyperkube ACI
[Service]
EnvironmentFile=/etc/kubernetes/kubelet.env
Environment="RKT_RUN_ARGS=--uuid-file-save=/var/cache/kubelet-pod.uuid \
--volume=resolv,kind=host,source=/etc/resolv.conf \
--mount volume=resolv,target=/etc/resolv.conf \
--volume var-lib-cni,kind=host,source=/var/lib/cni \
--mount volume=var-lib-cni,target=/var/lib/cni \
--volume opt-cni-bin,kind=host,source=/opt/cni/bin \
--mount volume=opt-cni-bin,target=/opt/cni/bin \
--volume var-log,kind=host,source=/var/log \
--mount volume=var-log,target=/var/log"
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=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/cache/kubelet-pod.uuid
ExecStart=/usr/lib/coreos/kubelet-wrapper \
--allow-privileged \
--anonymous-auth=false \
--client-ca-file=/etc/kubernetes/ca.crt \
--cluster_dns=${k8s_dns_service_ip} \
--cluster_domain=cluster.local \
--cni-conf-dir=/etc/kubernetes/cni/net.d \
--exit-on-lock-contention \
--kubeconfig=/etc/kubernetes/kubeconfig \
--lock-file=/var/run/lock/kubelet.lock \
--network-plugin=cni \
--node-labels=node-role.kubernetes.io/master \
--pod-manifest-path=/etc/kubernetes/manifests \
--register-with-taints=node-role.kubernetes.io/master=:NoSchedule \
--require-kubeconfig
ExecStop=-/usr/bin/rkt stop --uuid-file=/var/cache/kubelet-pod.uuid
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target
- name: bootkube.service
contents: |
[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
storage:
files:
- path: /etc/kubernetes/kubeconfig
filesystem: root
mode: 0644
contents:
inline: |
apiVersion: v1
kind: Config
clusters:
- name: local
cluster:
server: ${kubeconfig_server}
certificate-authority-data: ${kubeconfig_ca_cert}
users:
- name: kubelet
user:
client-certificate-data: ${kubeconfig_kubelet_cert}
client-key-data: ${kubeconfig_kubelet_key}
contexts:
- context:
cluster: local
user: kubelet
- path: /etc/kubernetes/kubelet.env
filesystem: root
mode: 0644
contents:
inline: |
KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
KUBELET_IMAGE_TAG=v1.7.5_coreos.0
- path: /etc/sysctl.d/max-user-watches.conf
filesystem: root
contents:
inline: |
fs.inotify.max_user_watches=16184
- path: /opt/bootkube/bootkube-start
filesystem: root
mode: 0544
user:
id: 500
group:
id: 500
contents:
inline: |
#!/bin/bash
# Wrapper for bootkube start
set -e
# Move experimental manifests
[ -d /opt/bootkube/assets/manifests-* ] && mv /opt/bootkube/assets/manifests-*/* /opt/bootkube/assets/manifests && rm -rf /opt/bootkube/assets/manifests-*
[ -d /opt/bootkube/assets/experimental/manifests ] && mv /opt/bootkube/assets/experimental/manifests/* /opt/bootkube/assets/manifests && rm -r /opt/bootkube/assets/experimental/manifests
[ -d /opt/bootkube/assets/experimental/bootstrap-manifests ] && mv /opt/bootkube/assets/experimental/bootstrap-manifests/* /opt/bootkube/assets/bootstrap-manifests && rm -r /opt/bootkube/assets/experimental/bootstrap-manifests
BOOTKUBE_ACI="$${BOOTKUBE_ACI:-quay.io/coreos/bootkube}"
BOOTKUBE_VERSION="$${BOOTKUBE_VERSION:-v0.6.2}"
BOOTKUBE_ASSETS="$${BOOTKUBE_ASSETS:-/opt/bootkube/assets}"
exec /usr/bin/rkt run \
--trust-keys-from-https \
--volume assets,kind=host,source=$${BOOTKUBE_ASSETS} \
--mount volume=assets,target=/assets \
--volume bootstrap,kind=host,source=/etc/kubernetes \
--mount volume=bootstrap,target=/etc/kubernetes \
$${RKT_OPTS} \
$${BOOTKUBE_ACI}:$${BOOTKUBE_VERSION} \
--net=host \
--dns=host \
--exec=/bootkube -- start --asset-dir=/assets "$@"
passwd:
users:
- name: core
ssh_authorized_keys:
- "${ssh_authorized_keys}"