Files for kubernetes/kubernetes#73541
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kubernetes/kubernetes issue 73541
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Seconds | Secrets | Pods | |
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7 | 30 | 1 | |
19 | 30 | 2 | |
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Seconds | Secrets | Pods | |
---|---|---|---|
7 | 30 | 1 | |
21 | 30 | 2 | |
36 | 30 | 3 | |
49 | 30 | 4 | |
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# Requirements | |
which kubectl jq date | |
# Reset | |
kubectl patch sa default -p '{"imagePullSecrets": null}' --type=merge | |
kubectl delete secret acr-auth | |
kubectl delete pod -l app=test-alpine36 | |
current_count=0 | |
runtime=0 | |
# Create a secret following pattern in https://docs.microsoft.com/en-us/azure/container-registry/container-registry-auth-aks | |
# The server/user/password don't matter, as we're not going to deploy any images from a private container registry | |
kubectl create secret docker-registry acr-auth --docker-server example.azurecr.io --docker-username example --docker-password test --docker-email [email protected] | |
kubectl patch sa default -p '{"imagePullSecrets":[{"name": "acr-auth"}]}' --type=merge | |
add_secrets() { | |
for I in $(seq ${1}); do | |
kubectl patch sa default --type='json' -p='[{"op": "add", "path": "/imagePullSecrets/-", "value": {"name": "acr-auth"}}]' | |
done | |
current_count=$(kubectl get sa default -o json | jq '.imagePullSecrets | length') | |
} | |
# Launch N pods, measure launch time | |
time_starting_pod() { | |
start=`date +%s` | |
for K in $(seq ${1}); do | |
(kubectl run -it --rm --image=alpine:3.6 --quiet=true --restart=Never -l app=test-alpine36 alpine36-${K} -- echo up > /dev/null) & | |
done | |
wait $(jobs -p) | |
end=`date +%s` | |
runtime=$((end-start)) | |
} | |
# Prep; # Seed 1+29=30 secrets | |
add_secrets 29 | |
# Start 1..20 pods, measure startup duration | |
echo "Seconds, Secrets, Pods" | |
for J in $(seq 20); do | |
time_starting_pod ${J} | |
echo "${runtime}, ${current_count}, ${J}" | |
done |
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Seconds | Secrets | |
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4 | 2 | |
3 | 3 | |
3 | 4 | |
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3 | 6 | |
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Seconds | Secrets | |
---|---|---|
3 | 2 | |
3 | 3 | |
2 | 4 | |
3 | 5 | |
3 | 6 | |
4 | 7 | |
4 | 8 | |
4 | 9 | |
5 | 10 | |
4 | 11 | |
4 | 12 | |
5 | 13 | |
5 | 14 | |
5 | 15 | |
6 | 16 | |
6 | 17 | |
6 | 18 | |
7 | 19 | |
7 | 20 | |
11 | 21 | |
7 | 22 | |
8 | 23 | |
8 | 24 | |
8 | 25 | |
7 | 26 | |
9 | 27 | |
8 | 28 | |
8 | 29 | |
9 | 30 | |
9 | 31 | |
10 | 32 | |
9 | 33 | |
10 | 34 | |
9 | 35 | |
10 | 36 | |
9 | 37 | |
9 | 38 | |
10 | 39 | |
11 | 40 | |
11 | 41 | |
12 | 42 | |
12 | 43 | |
11 | 44 | |
20 | 45 | |
13 | 46 | |
12 | 47 | |
12 | 48 | |
12 | 49 | |
13 | 50 | |
13 | 51 | |
15 | 52 | |
14 | 53 | |
13 | 54 | |
13 | 55 | |
14 | 56 |
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#!/bin/bash | |
# Prep: | |
# deploy an AKS 1-node cluster with v1.11.5 on Standard DS2 v2 (2 vcpus, 7 GB memory) | |
# Requirements | |
which kubectl jq date | |
# Reset | |
kubectl patch sa default -p '{"imagePullSecrets": null}' --type=merge | |
kubectl delete secret acr-auth | |
kubectl delete pod alpine36 | |
current_count=0 | |
runtime=0 | |
# Create a secret following pattern in https://docs.microsoft.com/en-us/azure/container-registry/container-registry-auth-aks | |
# The server/user/password don't matter, as we're not going to deploy any images from a private container registry | |
kubectl create secret docker-registry acr-auth --docker-server example.azurecr.io --docker-username example --docker-password test --docker-email [email protected] | |
kubectl patch sa default -p '{"imagePullSecrets":[{"name": "acr-auth"}]}' --type=merge | |
add_secrets() { | |
for I in $(seq 1); do | |
kubectl patch sa default --type='json' -p='[{"op": "add", "path": "/imagePullSecrets/-", "value": {"name": "acr-auth"}}]' > /dev/null | |
done | |
current_count=$(kubectl get sa default -o json | jq '.imagePullSecrets | length') | |
} | |
time_starting_pod() { | |
start=`date +%s` | |
kubectl run -it --rm --image=alpine:3.6 --quiet=true --restart=Never alpine36 -- echo up > /dev/null | |
end=`date +%s` | |
runtime=$((end-start)) | |
} | |
# Write 600+1 secrets. | |
echo "Seconds, Secrets" | |
for J in $(seq 600); do | |
time_starting_pod | |
add_secrets | |
echo "${runtime}, ${current_count}" | |
done |
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