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110 lines
3.4 KiB
110 lines
3.4 KiB
/*
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Copyright © 2020-2023 The k3d Author(s)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package util
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import (
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"strconv"
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"strings"
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dockerunits "github.com/docker/go-units"
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"github.com/k3d-io/k3d/v5/pkg/config/v1alpha5"
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l "github.com/k3d-io/k3d/v5/pkg/logger"
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)
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type UlimitTypes interface {
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dockerunits.Ulimit | v1alpha5.Ulimit
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}
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type Ulimit[T UlimitTypes] struct {
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Values T
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}
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// ValidateRuntimeUlimitKey validates a given ulimit key is valid
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func ValidateRuntimeUlimitKey(ulimitKey string) {
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ulimitsKeys := map[string]bool{
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"core": true,
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"cpu": true,
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"data": true,
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"fsize": true,
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"locks": true,
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"memlock": true,
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"msgqueue": true,
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"nice": true,
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"nofile": true,
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"nproc": true,
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"rss": true,
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"rtprio": true,
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"rttime": true,
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"sigpending": true,
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"stack": true,
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}
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keysList := make([]string, 0, len(ulimitsKeys))
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for key := range ulimitsKeys {
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keysList = append(keysList, key)
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}
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if !ulimitsKeys[ulimitKey] {
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l.Log().Fatalf("runtime ulimit \"%s\" is not valid, allowed keys are: %s", ulimitKey, strings.Join(keysList, ", "))
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}
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}
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func ParseRuntimeUlimit[T UlimitTypes](ulimit string) *T {
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var parsedUlimit any
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var tmpUlimit Ulimit[T]
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ulimitSplitted := strings.Split(ulimit, "=")
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if len(ulimitSplitted) != 2 {
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l.Log().Fatalf("unknown runtime-ulimit format format: %s, use format \"ulimit=soft:hard\"", ulimit)
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}
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ValidateRuntimeUlimitKey(ulimitSplitted[0])
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softHardSplitted := strings.Split(ulimitSplitted[1], ":")
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if len(softHardSplitted) != 2 {
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l.Log().Fatalf("unknown runtime-ulimit format format: %s, use format \"ulimit=soft:hard\"", ulimit)
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}
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soft, err := strconv.Atoi(softHardSplitted[0])
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if err != nil {
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l.Log().Fatalf("unknown runtime-ulimit format format: soft %s has to be int", ulimitSplitted[0])
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}
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hard, err := strconv.Atoi(softHardSplitted[1])
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if err != nil {
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l.Log().Fatalf("unknown runtime-ulimit format format: hard %s has to be int", ulimitSplitted[1])
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}
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switch any(tmpUlimit.Values).(type) {
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case dockerunits.Ulimit:
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parsedUlimit = &dockerunits.Ulimit{
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Name: ulimitSplitted[0],
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Soft: int64(soft),
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Hard: int64(hard),
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}
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case v1alpha5.Ulimit:
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parsedUlimit = &v1alpha5.Ulimit{
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Name: ulimitSplitted[0],
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Soft: int64(soft),
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Hard: int64(hard),
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}
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default:
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l.Log().Fatalf("Unsupported UlimitTypes, supported types are: dockerunits.Ulimit or v1alpha5.Ulimit")
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}
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return parsedUlimit.(*T)
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}
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