2939ebdba5
Prior to this change, configure.sh would: (1) compare versions of built-in kubelet and downloaded kubelet, and (2) bind-mount downloaded kubelet at /usr/bin/kubelet in case of version mismatch With this change, configure.sh: (1) compares the two versions only on test clusters, and (2) uses the actual file paths to start kubelet w/o any bind-mounting To allow (2), this change also provides its own version of kubelet systemd service file. Effectively with this change we will always use the downloaded kubelet binary along with its own systemd service file on non-test clusters. The main advantage is this change does not rely on the kubelet being built in to the OS image.
124 lines
3.5 KiB
YAML
124 lines
3.5 KiB
YAML
#cloud-config
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write_files:
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- path: /etc/systemd/system/kube-master-installation.service
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Download and install k8s binaries and configurations
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After=network-online.target
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStartPre=/bin/mkdir -p /home/kubernetes/bin
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ExecStartPre=/bin/mount --bind /home/kubernetes/bin /home/kubernetes/bin
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ExecStartPre=/bin/mount -o remount,exec /home/kubernetes/bin
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ExecStartPre=/usr/bin/curl --fail --retry 5 --retry-delay 3 --silent --show-error -H "X-Google-Metadata-Request: True" -o /home/kubernetes/bin/configure.sh http://metadata.google.internal/computeMetadata/v1/instance/attributes/configure-sh
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ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/configure.sh
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ExecStart=/home/kubernetes/bin/configure.sh
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kube-master-configuration.service
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Configure kubernetes master
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After=kube-master-installation.service
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/configure-helper.sh
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ExecStart=/home/kubernetes/bin/configure-helper.sh
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kube-docker-monitor.service
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Kubernetes health monitoring for docker
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After=kube-master-configuration.service
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[Service]
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Restart=always
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RestartSec=10
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RemainAfterExit=yes
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RemainAfterExit=yes
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ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/health-monitor.sh
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ExecStart=/home/kubernetes/bin/health-monitor.sh docker
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kubelet-monitor.service
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Kubernetes health monitoring for kubelet
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After=kube-master-configuration.service
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[Service]
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Restart=always
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RestartSec=10
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RemainAfterExit=yes
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RemainAfterExit=yes
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ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/health-monitor.sh
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ExecStart=/home/kubernetes/bin/health-monitor.sh kubelet
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kube-logrotate.timer
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Hourly kube-logrotate invocation
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[Timer]
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OnCalendar=hourly
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kube-logrotate.service
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Kubernetes log rotation
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After=kube-master-configuration.service
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[Service]
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Type=oneshot
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ExecStart=-/usr/sbin/logrotate /etc/logrotate.conf
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[Install]
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WantedBy=kubernetes.target
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- path: /etc/systemd/system/kubernetes.target
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permissions: 0644
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owner: root
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content: |
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[Unit]
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Description=Kubernetes
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runcmd:
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- systemctl daemon-reload
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- systemctl enable kube-master-installation.service
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- systemctl enable kube-master-configuration.service
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- systemctl enable kube-docker-monitor.service
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- systemctl enable kubelet-monitor.service
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- systemctl enable kube-logrotate.timer
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- systemctl enable kube-logrotate.service
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- systemctl start kubernetes.target
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