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specgen: split cgroup v1 and cgroup v2 code

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refactor function into two separate ones.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2020-10-30 14:46:39 +01:00
parent 228396a99d
commit 22702b9d60
1 changed files with 21 additions and 11 deletions
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32
pkg/specgen/generate/validate.go
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@ -7,16 +7,10 @@ import (
"github.com/pkg/errors"
)
// Verify resource limits are sanely set, removing any limits that are not
// possible with the current cgroups config.
func verifyContainerResources(s *specgen.SpecGenerator) ([]string, error) {
// Verify resource limits are sanely set when running on cgroup v1.
func verifyContainerResourcesCgroupV1(s *specgen.SpecGenerator) ([]string, error) {
warnings := []string{}
cgroup2, err := cgroups.IsCgroup2UnifiedMode()
if err != nil || cgroup2 {
return warnings, err
}
sysInfo := sysinfo.New(true)
if s.ResourceLimits == nil {
@ -24,9 +18,7 @@ func verifyContainerResources(s *specgen.SpecGenerator) ([]string, error) {
}
if s.ResourceLimits.Unified != nil {
if !cgroup2 {
return nil, errors.New("Cannot use --cgroup-conf without cgroup v2")
}
return nil, errors.New("Cannot use --cgroup-conf without cgroup v2")
}
// Memory checks
@ -163,3 +155,21 @@ func verifyContainerResources(s *specgen.SpecGenerator) ([]string, error) {
return warnings, nil
}
// Verify resource limits are sanely set when running on cgroup v2.
func verifyContainerResourcesCgroupV2(s *specgen.SpecGenerator) ([]string, error) {
return []string{}, nil
}
// Verify resource limits are sanely set, removing any limits that are not
// possible with the current cgroups config.
func verifyContainerResources(s *specgen.SpecGenerator) ([]string, error) {
cgroup2, err := cgroups.IsCgroup2UnifiedMode()
if err != nil {
return []string{}, err
}
if cgroup2 {
return verifyContainerResourcesCgroupV2(s)
}
return verifyContainerResourcesCgroupV1(s)
}