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-rw-r--r--cmd/podman/shared/container_inspect.go255
1 files changed, 255 insertions, 0 deletions
diff --git a/cmd/podman/shared/container_inspect.go b/cmd/podman/shared/container_inspect.go
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+++ b/cmd/podman/shared/container_inspect.go
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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 compatability.
+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
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-16 03:10:50 +0000