mirror of
https://github.com/jpetazzo/container.training.git
synced 2026-02-14 09:39:56 +00:00
302924db40
(Probably due to K8S version mismatch; vcluster was on 1.33 and the host cluster was on 1.35. Symptoms: some pods start, all their containers are ready, the pod shows up as ready, and yet, it's not considered ready so the deployment says 0/1 and Helm never completes.)
66 lines
1.8 KiB
Bash
Executable File
66 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# Baseline resource usage per vcluster in our usecase:
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# 500 MB RAM
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# 10% CPU
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# (See https://docs.google.com/document/d/1n0lwp6rQKQUIuo_A5LQ1dgCzrmjkDjmDtNj1Jn92UrI)
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# PRO2-XS = 4 core, 16 gb
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# Note that we also need 2 volumes per vcluster (one for vcluster itself, one for shpod),
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# so we might hit the maximum number of volumes per node!
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# (TODO: check what that limit is on Scaleway and Linode)
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#
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# With vspod:
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# 800 MB RAM
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# 33% CPU
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#
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set -e
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KONKTAG=konk
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PROVIDER=linode
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STUDENTS=2
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case "$PROVIDER" in
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linode)
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export TF_VAR_node_size=g6-standard-6
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export TF_VAR_location=fr-par
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;;
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scaleway)
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export TF_VAR_node_size=PRO2-XS
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# For tiny testing purposes, these are okay too:
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#export TF_VAR_node_size=PLAY2-NANO
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export TF_VAR_location=fr-par-2
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;;
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esac
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# set kubeconfig file
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export KUBECONFIG=~/kubeconfig
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if [ "$PROVIDER" = "kind" ]; then
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kind create cluster --name $KONKTAG
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ADDRTYPE=InternalIP
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else
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if ! [ -f tags/$KONKTAG/stage2/kubeconfig.101 ]; then
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./labctl create --mode mk8s --settings settings/konk.env --provider $PROVIDER --tag $KONKTAG
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fi
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cp tags/$KONKTAG/stage2/kubeconfig.101 $KUBECONFIG
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ADDRTYPE=ExternalIP
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fi
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# set external_ip labels
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kubectl get nodes -o=jsonpath='{range .items[*]}{.metadata.name} {.status.addresses[?(@.type=="'$ADDRTYPE'")].address}{"\n"}{end}' |
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while read node address ignoredaddresses; do
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kubectl label node $node external_ip=$address
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done
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# vcluster all the things
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./labctl create --settings settings/mk8s.env --provider vcluster --mode mk8s --students $STUDENTS
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# install prometheus stack because that's cool
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helm upgrade --install --repo https://prometheus-community.github.io/helm-charts \
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--namespace prom-system --create-namespace \
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kube-prometheus-stack kube-prometheus-stack
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# and also fix sysctl
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kubectl apply -f ../k8s/sysctl.yaml --namespace kube-system
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