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dockertools: disable MemorySwap on Linux

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According to docker docs, setting MemorySwap equals to Memory can
prevent docker containers from using any swap, instead of setting
MemorySwap to zero.
This commit is contained in:
ohmystack 2018-02-06 16:05:24 +08:00
parent 6775a3252d
commit ecc13c8d86
1 changed files with 2 additions and 1 deletions
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3
pkg/kubelet/dockershim/helpers_linux.go
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@ -104,8 +104,9 @@ func (ds *dockerService) updateCreateConfig(
rOpts := lc.GetResources()
if rOpts != nil {
createConfig.HostConfig.Resources = dockercontainer.Resources{
// Memory and MemorySwap are set to the same value, this prevents containers from using any swap.
Memory: rOpts.MemoryLimitInBytes,
MemorySwap: DefaultMemorySwap(),
MemorySwap: rOpts.MemoryLimitInBytes,
CPUShares: rOpts.CpuShares,
CPUQuota: rOpts.CpuQuota,
CPUPeriod: rOpts.CpuPeriod,