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Container: Add initConfigResourcesMemory and call it in newContainer

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The swappiness is not right if just set
io.katacontainers.container.resource.swappiness:
$ pod_yaml=pod.yaml
$ container_yaml=container.yaml
$ image="quay.io/prometheus/busybox:latest"
$ cat << EOF > "${pod_yaml}"
metadata:
  name: busybox-sandbox1
EOF
$ cat << EOF > "${container_yaml}"
metadata:
  name: busybox-killed-vmm
annotations:
  io.katacontainers.container.resource.swappiness: "100"
image:
  image: "$image"
command:
- top
EOF
$ sudo crictl pull $image
$ podid=$(sudo crictl runp $pod_yaml)
$ cid=$(sudo crictl create $podid $container_yaml $pod_yaml)
$ sudo crictl start $cid
crictl exec $cid cat /sys/fs/cgroup/memory/memory.swappiness
60

The cause of this issue is there are two elements store the resources
infomation.  They are c.config.Resources for calculateSandboxMemory and
c.GetPatchedOCISpec() for agent.
This add initConfigResourcesMemory to Container and call it in
newContainer to handle the issue.

Fixes: #2372

Signed-off-by: Hui Zhu <teawater@antfin.com>
This commit is contained in:
Hui Zhu 2021-08-02 15:56:26 +08:00
parent fdc42ca7ff
commit e6408fe670
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/runtime/virtcontainers/container.go
View File

@ -745,6 +745,12 @@ func (c *Container) createBlockDevices(ctx context.Context) error {
return nil
}
func (c *Container) initConfigResourcesMemory() {
ociSpec := c.GetPatchedOCISpec()
c.config.Resources.Memory = &specs.LinuxMemory{}
ociSpec.Linux.Resources.Memory = c.config.Resources.Memory
}
// newContainer creates a Container structure from a sandbox and a container configuration.
func newContainer(ctx context.Context, sandbox *Sandbox, contConfig *ContainerConfig) (*Container, error) {
span, ctx := katatrace.Trace(ctx, sandbox.Logger(), "newContainer", sandbox.tracingTags())
@ -778,7 +784,7 @@ func newContainer(ctx context.Context, sandbox *Sandbox, contConfig *ContainerCo
return &Container{}, fmt.Errorf("Invalid container configuration Annotations %s %v", vcAnnotations.ContainerResourcesSwappiness, err)
}
if c.config.Resources.Memory == nil {
c.config.Resources.Memory = &specs.LinuxMemory{}
c.initConfigResourcesMemory()
}
c.config.Resources.Memory.Swappiness = &resourceSwappiness
}
@ -788,7 +794,7 @@ func newContainer(ctx context.Context, sandbox *Sandbox, contConfig *ContainerCo
return &Container{}, fmt.Errorf("Invalid container configuration Annotations %s %v", vcAnnotations.ContainerResourcesSwapInBytes, err)
}
if c.config.Resources.Memory == nil {
c.config.Resources.Memory = &specs.LinuxMemory{}
c.initConfigResourcesMemory()
}
resourceSwapInBytes := int64(resourceSwapInBytesInUint)
c.config.Resources.Memory.Swap = &resourceSwapInBytes