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Merge tolerations in a consistent order

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This commit is contained in:
Joe Betz 2019-05-23 22:23:41 -07:00
parent 9b504c474c
commit a6e1db97f0
1 changed files with 12 additions and 7 deletions
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19
pkg/util/tolerations/tolerations.go
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@ -25,6 +25,10 @@ type key struct {
effect api.TaintEffect effect api.TaintEffect
} }
func convertTolerationToKey(in api.Toleration) key {
return key{in.Key, in.Effect}
}
// VerifyAgainstWhitelist checks if the provided tolerations // VerifyAgainstWhitelist checks if the provided tolerations
// satisfy the provided whitelist and returns true, otherwise returns false // satisfy the provided whitelist and returns true, otherwise returns false
func VerifyAgainstWhitelist(tolerations []api.Toleration, whitelist []api.Toleration) bool { func VerifyAgainstWhitelist(tolerations []api.Toleration, whitelist []api.Toleration) bool {
@ -62,13 +66,14 @@ func IsConflict(first []api.Toleration, second []api.Toleration) bool {
func MergeTolerations(first []api.Toleration, second []api.Toleration) []api.Toleration { func MergeTolerations(first []api.Toleration, second []api.Toleration) []api.Toleration {
var mergedTolerations []api.Toleration var mergedTolerations []api.Toleration
mergedTolerations = append(mergedTolerations, second...) mergedTolerations = append(mergedTolerations, second...)
firstMap := ConvertTolerationToAMap(first) firstMap := ConvertTolerationToAMap(first)
secondMap := ConvertTolerationToAMap(second) secondMap := ConvertTolerationToAMap(second)
// preserve order of first when merging
for k1, v1 := range firstMap { for _, v := range first {
if _, ok := secondMap[k1]; !ok { k := convertTolerationToKey(v)
mergedTolerations = append(mergedTolerations, v1) // if first contains key conflicts, the last one takes precedence
if _, ok := secondMap[k]; !ok && firstMap[k] == v {
mergedTolerations = append(mergedTolerations, v)
} }
} }
return mergedTolerations return mergedTolerations
@ -95,8 +100,8 @@ func EqualTolerations(first []api.Toleration, second []api.Toleration) bool {
// ConvertTolerationToAMap converts toleration list into a map[string]api.Toleration // ConvertTolerationToAMap converts toleration list into a map[string]api.Toleration
func ConvertTolerationToAMap(in []api.Toleration) map[key]api.Toleration { func ConvertTolerationToAMap(in []api.Toleration) map[key]api.Toleration {
out := map[key]api.Toleration{} out := map[key]api.Toleration{}
for i := range in { for _, v := range in {
out[key{in[i].Key, in[i].Effect}] = in[i] out[convertTolerationToKey(v)] = v
} }
return out return out
} }