Add automatic worker deletion on Fedora CoreOS clouds

* On clouds where workers can scale down or be preempted
(AWS, GCP, Azure), shutdown runs delete-node.service to
remove a node a prevent NotReady nodes from lingering
* Add the delete-node.service that wasn't carried over
from Container Linux and port it to use podman
This commit is contained in:
Dalton Hubble 2020-02-29 20:12:06 -08:00
parent 6de5cf5a55
commit 87f9a2fc35
3 changed files with 28 additions and 2 deletions

View File

@ -9,12 +9,14 @@ Notable changes between versions.
#### AWS
* Fix `worker_node_labels` for setting initial worker node labels on Fedora CoreOS ([#651](https://github.com/poseidon/typhoon/pull/651))
* Allow VPC route table extension via reference ([#654](https://github.com/poseidon/typhoon/pull/654))
* Fix `worker_node_labels` on Fedora CoreOS ([#651](https://github.com/poseidon/typhoon/pull/651))
* Fix automatic worker node delete on shutdown on Fedora CoreOS ([#657](https://github.com/poseidon/typhoon/pull/657))
#### Google Cloud
* Fix `worker_node_labels` for setting initial worker node labels on Fedora CoreOS ([#651](https://github.com/poseidon/typhoon/pull/651))
* Fix `worker_node_labels` on Fedora CoreOS ([#651](https://github.com/poseidon/typhoon/pull/651))
* Fix automatic worker node delete on shutdown on Fedora CoreOS ([#657](https://github.com/poseidon/typhoon/pull/657))
#### DigitalOcean

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@ -78,6 +78,18 @@ systemd:
RestartSec=10
[Install]
WantedBy=multi-user.target
- name: delete-node.service
enabled: true
contents: |
[Unit]
Description=Delete Kubernetes node on shutdown
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/true
ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z k8s.gcr.io/hyperkube:v1.17.3 kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
[Install]
WantedBy=multi-user.target
storage:
directories:
- path: /etc/kubernetes

View File

@ -78,6 +78,18 @@ systemd:
RestartSec=10
[Install]
WantedBy=multi-user.target
- name: delete-node.service
enabled: true
contents: |
[Unit]
Description=Delete Kubernetes node on shutdown
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/true
ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z k8s.gcr.io/hyperkube:v1.17.3 kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
[Install]
WantedBy=multi-user.target
storage:
directories:
- path: /etc/kubernetes