Backport "tie minion registration to kubelet activation"
this changes moves minion registration out of the configure-kubernetes-minion.sh script and puts it in a systemd service unit that tracks the state of the kubelet.service and registers/unregisters the minion as appropriate. heat-coe-templates: I6532a9bc08bbb2351a2ae5d29bc884cb3cad3508 Change-Id: I2d6a722d63b2b465e880daff87b8307132f82a32
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@ -32,5 +32,5 @@ cat >> /etc/environment <<EOF
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KUBERNETES_MASTER=http://$KUBE_MASTER_IP:8080
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EOF
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/usr/local/bin/kube-register
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systemctl enable kube-register
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@ -13,10 +13,16 @@ write_files:
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awk '$1 == "inet" {print $2}' | cut -f1 -d/)
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# wait for master api
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until curl -sf "${master_url}/healthz"; do
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until curl -o /dev/null -sf "${master_url}/healthz"; do
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echo "waiting for kubernetes master"
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sleep 1
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done
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if [ "$1" = "-u" ]; then
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echo "unregistering minion $myip"
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kubectl -s ${master_url} delete minion/$myip
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else
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echo "registering minion $myip"
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cpu=$(($(nproc) * 1000))
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memory=$(awk '/MemTotal: /{print $2 * 1024}' /proc/meminfo)
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@ -29,3 +35,21 @@ write_files:
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cpu: $cpu
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memory: $memory
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EOF
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fi
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- path: /etc/systemd/system/kube-register.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=Register/unregister this node with the Kubernetes master
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Requires=kubelet.service
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After=kubelet.service
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStart=/usr/local/bin/kube-register
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ExecStop=/usr/local/bin/kube-register -u
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[Install]
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WantedBy=kubelet.service
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