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/*
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Copyright © 2020-2021 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 client
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import (
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"os"
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"strconv"
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l "github.com/rancher/k3d/v4/pkg/logger"
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"github.com/rancher/k3d/v4/pkg/runtimes"
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"github.com/rancher/k3d/v4/pkg/types/fixes"
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)
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// FIXME: FixCgroupV2 - to be removed when fixed upstream
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func EnableCgroupV2FixIfNeeded(runtime runtimes.Runtime) {
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if _, isSet := os.LookupEnv(fixes.EnvFixCgroupV2); !isSet {
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runtimeInfo, err := runtime.Info()
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if err != nil {
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l.Log().Warnf("Failed to get runtime information: %+v", err)
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return
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}
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cgroupVersion, err := strconv.Atoi(runtimeInfo.CgroupVersion)
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if err != nil {
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l.Log().Debugf("Failed to parse cgroupVersion: %+v", err)
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return
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}
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if cgroupVersion == 2 {
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l.Log().Debugf("Detected CgroupV2, enabling custom entrypoint (disable by setting %s=false)", fixes.EnvFixCgroupV2)
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if err := os.Setenv(fixes.EnvFixCgroupV2, "true"); err != nil {
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l.Log().Errorf("Detected CgroupsV2 but failed to enable k3d's hotfix (try `export %s=true`): %+v", fixes.EnvFixCgroupV2, err)
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}
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}
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}
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}
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