Documentation
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Overview ¶
Package sysinfo stores information about which features a kernel supports.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func NumCPU ¶ added in v1.13.0
func NumCPU() int
NumCPU returns the number of CPUs. On Linux and Windows, it returns the number of CPUs which are currently online. On other platforms, it's the equivalent of runtime.NumCPU.
Types ¶
type Opt ¶
type Opt func(info *SysInfo)
Opt for New().
func WithCgroup2GroupPath ¶
WithCgroup2GroupPath specifies the cgroup v2 group path to inspect availability of the controllers.
WithCgroup2GroupPath is expected to be used for rootless mode with systemd driver.
e.g. g = "/user.slice/user-1000.slice/user@1000.service"
type SysInfo ¶
type SysInfo struct {
// Whether the kernel supports AppArmor or not
AppArmor bool
// Whether the kernel supports Seccomp or not
Seccomp bool
// Whether the kernel supports cgroup namespaces or not
CgroupNamespaces bool
// Whether IPv4 forwarding is supported or not, if this was disabled, networking will not work
IPv4ForwardingDisabled bool
// Whether bridge-nf-call-iptables is supported or not
BridgeNFCallIPTablesDisabled bool
// Whether bridge-nf-call-ip6tables is supported or not
BridgeNFCallIP6TablesDisabled bool
// Whether the cgroup has the mountpoint of "devices" or not
CgroupDevicesEnabled bool
// Whether the cgroup is in unified mode (v2).
CgroupUnified bool
// Warnings contains a slice of warnings that occurred while collecting
// system information. These warnings are intended to be informational
// messages for the user, and can either be logged or returned to the
// client; they are not intended to be parsed / used for other purposes,
// and do not have a fixed format.
Warnings []string
// contains filtered or unexported fields
}
SysInfo stores information about which features a kernel supports. TODO Windows: Factor out platform specific capabilities.
func New ¶
New returns a new SysInfo, using the filesystem to detect which features the kernel supports.
func (SysInfo) IsCpusetCpusAvailable ¶ added in v1.9.0
IsCpusetCpusAvailable returns `true` if the provided string set is contained in cgroup's cpuset.cpus set, `false` otherwise. If error is not nil a parsing error occurred.
func (SysInfo) IsCpusetMemsAvailable ¶ added in v1.9.0
IsCpusetMemsAvailable returns `true` if the provided string set is contained in cgroup's cpuset.mems set, `false` otherwise. If error is not nil a parsing error occurred.
Source Files