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package shared
import (
"strings"
"github.com/containers/image/manifest"
"github.com/containers/libpod/libpod"
cc "github.com/containers/libpod/pkg/spec"
"github.com/docker/go-connections/nat"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
// InspectContainer holds all inspect data for a container.
// The format of individual components is fixed so the overall structure, when
// JSON encoded, matches the output of `docker inspect`.
// It combines Libpod-source inspect data with Podman-specific inspect data.
type InspectContainer struct {
*libpod.InspectContainerData
HostConfig *InspectContainerHostConfig `json:"HostConfig"`
Config *InspectContainerConfig `json:"Config"`
}
// InspectContainerHostConfig holds Container configuration that is not specific
// to Libpod. This information is (mostly) stored by Podman as an artifact.
// This struct is matched to the output of `docker inspect`.
type InspectContainerHostConfig struct {
ContainerIDFile string `json:"ContainerIDFile"`
LogConfig *InspectLogConfig `json:"LogConfig"` //TODO
NetworkMode string `json:"NetworkMode"`
PortBindings nat.PortMap `json:"PortBindings"` //TODO
AutoRemove bool `json:"AutoRemove"`
CapAdd []string `json:"CapAdd"`
CapDrop []string `json:"CapDrop"`
DNS []string `json:"DNS"`
DNSOptions []string `json:"DNSOptions"`
DNSSearch []string `json:"DNSSearch"`
ExtraHosts []string `json:"ExtraHosts"`
GroupAdd []uint32 `json:"GroupAdd"`
IpcMode string `json:"IpcMode"`
Cgroup string `json:"Cgroup"`
OomScoreAdj *int `json:"OomScoreAdj"`
PidMode string `json:"PidMode"`
Privileged bool `json:"Privileged"`
PublishAllPorts bool `json:"PublishAllPorts"` //TODO
ReadOnlyRootfs bool `json:"ReadonlyRootfs"`
ReadOnlyTmpfs bool `json:"ReadonlyTmpfs"`
SecurityOpt []string `json:"SecurityOpt"`
UTSMode string `json:"UTSMode"`
UsernsMode string `json:"UsernsMode"`
ShmSize int64 `json:"ShmSize"`
Runtime string `json:"Runtime"`
ConsoleSize *specs.Box `json:"ConsoleSize"`
CPUShares *uint64 `json:"CpuShares"`
Memory int64 `json:"Memory"`
NanoCPUs int `json:"NanoCpus"`
CgroupParent string `json:"CgroupParent"`
BlkioWeight *uint16 `json:"BlkioWeight"`
BlkioWeightDevice []specs.LinuxWeightDevice `json:"BlkioWeightDevice"`
BlkioDeviceReadBps []specs.LinuxThrottleDevice `json:"BlkioDeviceReadBps"`
BlkioDeviceWriteBps []specs.LinuxThrottleDevice `json:"BlkioDeviceWriteBps"`
BlkioDeviceReadIOps []specs.LinuxThrottleDevice `json:"BlkioDeviceReadIOps"`
BlkioDeviceWriteIOps []specs.LinuxThrottleDevice `json:"BlkioDeviceWriteIOps"`
CPUPeriod *uint64 `json:"CpuPeriod"`
CPUQuota *int64 `json:"CpuQuota"`
CPURealtimePeriod *uint64 `json:"CpuRealtimePeriod"`
CPURealtimeRuntime *int64 `json:"CpuRealtimeRuntime"`
CPUSetCPUs string `json:"CpuSetCpus"`
CPUSetMems string `json:"CpuSetMems"`
Devices []specs.LinuxDevice `json:"Devices"`
DiskQuota int `json:"DiskQuota"` //check type, TODO
KernelMemory *int64 `json:"KernelMemory"`
MemoryReservation *int64 `json:"MemoryReservation"`
MemorySwap *int64 `json:"MemorySwap"`
MemorySwappiness *uint64 `json:"MemorySwappiness"`
OomKillDisable *bool `json:"OomKillDisable"`
PidsLimit *int64 `json:"PidsLimit"`
Ulimits []string `json:"Ulimits"`
CPUCount int `json:"CpuCount"`
CPUPercent int `json:"CpuPercent"`
IOMaximumIOps int `json:"IOMaximumIOps"` //check type, TODO
IOMaximumBandwidth int `json:"IOMaximumBandwidth"` //check type, TODO
Tmpfs []string `json:"Tmpfs"`
}
// InspectContainerConfig holds further data about a container, again mostly
// not directly stored in Libpod. This struct is matched to the output of
// `docker inspect`.
type InspectContainerConfig struct {
Hostname string `json:"Hostname"`
DomainName string `json:"Domainname"` //TODO
User specs.User `json:"User"`
AttachStdin bool `json:"AttachStdin"` //TODO
AttachStdout bool `json:"AttachStdout"` //TODO
AttachStderr bool `json:"AttachStderr"` //TODO
Tty bool `json:"Tty"`
OpenStdin bool `json:"OpenStdin"`
StdinOnce bool `json:"StdinOnce"` //TODO
Env []string `json:"Env"`
Cmd []string `json:"Cmd"`
Image string `json:"Image"`
Volumes map[string]struct{} `json:"Volumes"`
WorkingDir string `json:"WorkingDir"`
Entrypoint string `json:"Entrypoint"`
Labels map[string]string `json:"Labels"`
Annotations map[string]string `json:"Annotations"`
StopSignal uint `json:"StopSignal"`
Healthcheck *manifest.Schema2HealthConfig `json:"Healthcheck,omitempty"`
}
// InspectLogConfig holds information about a container's configured log driver
// and is presently unused. It is retained for Docker compatibility.
type InspectLogConfig struct {
Type string `json:"Type"`
Config map[string]string `json:"Config"` //idk type, TODO
}
// GetCtrInspectInfo inspects a container, combining Libpod inspect information
// with other information not stored in Libpod and returning a struct that, when
// formatted for JSON output, is compatible with `docker inspect`.
func GetCtrInspectInfo(config *libpod.ContainerConfig, ctrInspectData *libpod.InspectContainerData, createArtifact *cc.CreateConfig) (*InspectContainer, error) {
spec := config.Spec
cpus, mems, period, quota, realtimePeriod, realtimeRuntime, shares := getCPUInfo(spec)
blkioWeight, blkioWeightDevice, blkioReadBps, blkioWriteBps, blkioReadIOPS, blkioeWriteIOPS := getBLKIOInfo(spec)
memKernel, memReservation, memSwap, memSwappiness, memDisableOOMKiller := getMemoryInfo(spec)
pidsLimit := getPidsInfo(spec)
cgroup := getCgroup(spec)
logConfig := InspectLogConfig{
config.LogDriver,
make(map[string]string),
}
data := &InspectContainer{
ctrInspectData,
&InspectContainerHostConfig{
ConsoleSize: spec.Process.ConsoleSize,
OomScoreAdj: spec.Process.OOMScoreAdj,
CPUShares: shares,
BlkioWeight: blkioWeight,
BlkioWeightDevice: blkioWeightDevice,
BlkioDeviceReadBps: blkioReadBps,
BlkioDeviceWriteBps: blkioWriteBps,
BlkioDeviceReadIOps: blkioReadIOPS,
BlkioDeviceWriteIOps: blkioeWriteIOPS,
CPUPeriod: period,
CPUQuota: quota,
CPURealtimePeriod: realtimePeriod,
CPURealtimeRuntime: realtimeRuntime,
CPUSetCPUs: cpus,
CPUSetMems: mems,
Devices: spec.Linux.Devices,
KernelMemory: memKernel,
LogConfig: &logConfig,
MemoryReservation: memReservation,
MemorySwap: memSwap,
MemorySwappiness: memSwappiness,
OomKillDisable: memDisableOOMKiller,
PidsLimit: pidsLimit,
Privileged: config.Privileged,
ReadOnlyRootfs: spec.Root.Readonly,
ReadOnlyTmpfs: createArtifact.ReadOnlyTmpfs,
Runtime: config.OCIRuntime,
NetworkMode: string(createArtifact.NetMode),
IpcMode: string(createArtifact.IpcMode),
Cgroup: cgroup,
UTSMode: string(createArtifact.UtsMode),
UsernsMode: string(createArtifact.UsernsMode),
GroupAdd: spec.Process.User.AdditionalGids,
ContainerIDFile: createArtifact.CidFile,
AutoRemove: createArtifact.Rm,
CapAdd: createArtifact.CapAdd,
CapDrop: createArtifact.CapDrop,
DNS: createArtifact.DNSServers,
DNSOptions: createArtifact.DNSOpt,
DNSSearch: createArtifact.DNSSearch,
PidMode: string(createArtifact.PidMode),
CgroupParent: createArtifact.CgroupParent,
ShmSize: createArtifact.Resources.ShmSize,
Memory: createArtifact.Resources.Memory,
Ulimits: createArtifact.Resources.Ulimit,
SecurityOpt: createArtifact.SecurityOpts,
Tmpfs: createArtifact.Tmpfs,
},
&InspectContainerConfig{
Hostname: spec.Hostname,
User: spec.Process.User,
Env: spec.Process.Env,
Image: config.RootfsImageName,
WorkingDir: spec.Process.Cwd,
Labels: config.Labels,
Annotations: spec.Annotations,
Tty: spec.Process.Terminal,
OpenStdin: config.Stdin,
StopSignal: config.StopSignal,
Cmd: config.Spec.Process.Args,
Entrypoint: strings.Join(createArtifact.Entrypoint, " "),
Healthcheck: config.HealthCheckConfig,
},
}
return data, nil
}
func getCPUInfo(spec *specs.Spec) (string, string, *uint64, *int64, *uint64, *int64, *uint64) {
if spec.Linux.Resources == nil {
return "", "", nil, nil, nil, nil, nil
}
cpu := spec.Linux.Resources.CPU
if cpu == nil {
return "", "", nil, nil, nil, nil, nil
}
return cpu.Cpus, cpu.Mems, cpu.Period, cpu.Quota, cpu.RealtimePeriod, cpu.RealtimeRuntime, cpu.Shares
}
func getBLKIOInfo(spec *specs.Spec) (*uint16, []specs.LinuxWeightDevice, []specs.LinuxThrottleDevice, []specs.LinuxThrottleDevice, []specs.LinuxThrottleDevice, []specs.LinuxThrottleDevice) {
if spec.Linux.Resources == nil {
return nil, nil, nil, nil, nil, nil
}
blkio := spec.Linux.Resources.BlockIO
if blkio == nil {
return nil, nil, nil, nil, nil, nil
}
return blkio.Weight, blkio.WeightDevice, blkio.ThrottleReadBpsDevice, blkio.ThrottleWriteBpsDevice, blkio.ThrottleReadIOPSDevice, blkio.ThrottleWriteIOPSDevice
}
func getMemoryInfo(spec *specs.Spec) (*int64, *int64, *int64, *uint64, *bool) {
if spec.Linux.Resources == nil {
return nil, nil, nil, nil, nil
}
memory := spec.Linux.Resources.Memory
if memory == nil {
return nil, nil, nil, nil, nil
}
return memory.Kernel, memory.Reservation, memory.Swap, memory.Swappiness, memory.DisableOOMKiller
}
func getPidsInfo(spec *specs.Spec) *int64 {
if spec.Linux.Resources == nil {
return nil
}
pids := spec.Linux.Resources.Pids
if pids == nil {
return nil
}
return &pids.Limit
}
func getCgroup(spec *specs.Spec) string {
cgroup := "host"
for _, ns := range spec.Linux.Namespaces {
if ns.Type == specs.CgroupNamespace && ns.Path != "" {
cgroup = "container"
}
}
return cgroup
}
|
