forked from hswaw/hscloud
k0: enable fstrim, lower gc thresh for kubelet
fstrim is nice as it might prevent us from killing SSDs so fast. A lower GC threshold for kubelet is nice as we run non-kubelet services on these nodes, and they need their space. Notably, Ceph's mons tend to be extremely claustrophobic, firing alerts at 70% disk usage or so. Change-Id: I94c1787e62f82a02f107d04a87575327d3d79c01 Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1724 Reviewed-by: implr <implr@hackerspace.pl>
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2 changed files with 10 additions and 1 deletions
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@ -114,6 +114,13 @@ in {
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# Enable the OpenSSH daemon.
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services.openssh.enable = true;
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# Enable fstrim, as we run / on SSDs everywhere.
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services.fstrim = {
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enable = true;
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interval = "daily";
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};
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users.users.root.openssh.authorizedKeys.keys = [
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDD4VJXAXEHEXZk2dxNwehneuJcEGkfXG/U7z4fO79vDVIENdedtXQUyLyhZJc5RTEfHhQj66FwIqzl7mzBHd9x9PuDp6QAYXrkVNMj48s6JXqZqBvF6H/weRqFMf4a2TZv+hG8D0kpvmLheCwWAVRls7Jofnp/My+yDd57GMdsbG/yFEf6WPMiOnA7hxdSJSVihCsCSw2p8PD4GhBe8CVt7xIuinhutjm9zYBjV78NT8acjDUfJh0B1ODTjs7nuW1CC4jybSe2j/OU3Yczj4AxRxBNWuFxUq+jBo9BfpbKLh+Tt7re+zBkaicM77KM/oV6943JJxgHNBBOsv9scZE7 q3k@amnesia"
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"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG599UildOrAq+LIOQjKqtGMwjgjIxozI1jtQQRKHtCP q3k@mimeomia"
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@ -80,7 +80,9 @@ in {
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clusterDns = "10.10.12.254";
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kubeconfig = pki.kube.kubelet.config;
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extraOpts = ''
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--read-only-port=0
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--read-only-port=0 \
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--image-gc-high-threshold=60 \
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--image-gc-low-threshold=40
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'';
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package = config.hscloud.kube.packageKubelet;
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};
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