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Merge pull request #10121 from rifelpet/kubetest2-3
Add random AWS zone logic + specify build stage location
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/* | ||
Copyright 2020 The Kubernetes Authors. | ||
Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
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package aws | ||
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import ( | ||
"errors" | ||
"math/rand" | ||
"sort" | ||
) | ||
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var allZones = []string{ | ||
"ap-northeast-1a", | ||
"ap-northeast-1c", | ||
"ap-northeast-1d", | ||
"ap-northeast-2a", | ||
//"ap-northeast-2b" - AZ does not exist, so we"re breaking the 3 AZs per region target here | ||
"ap-northeast-2c", | ||
"ap-south-1a", | ||
"ap-south-1b", | ||
"ap-southeast-1a", | ||
"ap-southeast-1b", | ||
"ap-southeast-1c", | ||
"ap-southeast-2a", | ||
"ap-southeast-2b", | ||
"ap-southeast-2c", | ||
"eu-central-1a", | ||
"eu-central-1b", | ||
"eu-central-1c", | ||
"eu-west-1a", | ||
"eu-west-1b", | ||
"eu-west-1c", | ||
"eu-west-2a", | ||
"eu-west-2b", | ||
"eu-west-2c", | ||
//"eu-west-3a", documented to not support c4 family | ||
//"eu-west-3b", documented to not support c4 family | ||
//"eu-west-3c", documented to not support c4 family | ||
//"us-east-1a", // temporarily removing due to lack of quota test-infra#10043 | ||
//"us-east-1b", // temporarily removing due to lack of quota test-infra#10043 | ||
//"us-east-1c", // temporarily removing due to lack of quota test-infra#10043 | ||
//"us-east-1d", // limiting to 3 zones to not overallocate | ||
//"us-east-1e", // limiting to 3 zones to not overallocate | ||
//"us-east-1f", // limiting to 3 zones to not overallocate | ||
//"us-east-2a", InsufficientInstanceCapacity for c4.large 2018-05-30 | ||
//"us-east-2b", InsufficientInstanceCapacity for c4.large 2018-05-30 | ||
//"us-east-2c", InsufficientInstanceCapacity for c4.large 2018-05-30 | ||
"us-west-1a", | ||
"us-west-1b", | ||
//"us-west-1c", AZ does not exist, so we"re breaking the 3 AZs per region target here | ||
//"us-west-2a", // temporarily removing due to lack of quota test-infra#10043 | ||
//"us-west-2b", // temporarily removing due to lack of quota test-infra#10043 | ||
//"us-west-2c", // temporarily removing due to lack of quota test-infra#10043 | ||
} | ||
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// ErrNoEligibleRegion indicates the requested number of zones is not available in any region | ||
var ErrNoEligibleRegion = errors.New("No eligible AWS region found with enough zones") | ||
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// RandomZones returns a random set of availability zones within a region | ||
func RandomZones(count int) ([]string, error) { | ||
regions := make(map[string][]string) | ||
for _, zone := range allZones { | ||
region := zone[:len(zone)-1] | ||
regions[region] = append(regions[region], zone) | ||
} | ||
eligibleRegions := make([][]string, 0) | ||
for _, zones := range regions { | ||
if len(zones) >= count { | ||
eligibleRegions = append(eligibleRegions, zones) | ||
} | ||
} | ||
if len(eligibleRegions) == 0 { | ||
return nil, ErrNoEligibleRegion | ||
} | ||
chosenRegion := eligibleRegions[rand.Int()%len(eligibleRegions)] | ||
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chosenZones := make([]string, 0) | ||
randIndexes := rand.Perm(len(chosenRegion)) | ||
for i := 0; i < count; i++ { | ||
chosenZones = append(chosenZones, chosenRegion[randIndexes[i]]) | ||
} | ||
sort.Strings(chosenZones) | ||
return chosenZones, nil | ||
} |
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/* | ||
Copyright 2020 The Kubernetes Authors. | ||
Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
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package aws | ||
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import ( | ||
"fmt" | ||
"testing" | ||
) | ||
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func TestRandomZones(t *testing.T) { | ||
t.Parallel() // marks TLog as capable of running in parallel with other tests | ||
tests := []struct { | ||
count int | ||
err error | ||
}{ | ||
{1, nil}, | ||
{2, nil}, | ||
{3, nil}, | ||
{4, ErrNoEligibleRegion}, | ||
} | ||
for _, tt := range tests { | ||
t.Run(fmt.Sprintf("%v zones", tt.count), func(t *testing.T) { | ||
zones, err := RandomZones(tt.count) | ||
if err != tt.err { | ||
t.Errorf("unexpected error response: %v vs %v. zones: %v", err, tt.err, zones) | ||
t.Fail() | ||
} else if tt.err == nil && len(zones) != tt.count { | ||
t.Errorf("Unexpected number of zones returned: %v vs %v. zones: %v", len(zones), tt.count, zones) | ||
t.Fail() | ||
} | ||
}) | ||
} | ||
} |
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