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|
package shared
import (
"context"
"encoding/json"
"fmt"
"io"
"os"
"path/filepath"
goruntime "runtime"
"strconv"
"strings"
"syscall"
"time"
"github.com/containers/image/v5/manifest"
"github.com/containers/libpod/cmd/podman/shared/parse"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/image"
ann "github.com/containers/libpod/pkg/annotations"
envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/errorhandling"
"github.com/containers/libpod/pkg/inspect"
ns "github.com/containers/libpod/pkg/namespaces"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/pkg/seccomp"
cc "github.com/containers/libpod/pkg/spec"
"github.com/containers/libpod/pkg/util"
"github.com/docker/go-connections/nat"
"github.com/docker/go-units"
"github.com/opentracing/opentracing-go"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
func CreateContainer(ctx context.Context, c *GenericCLIResults, runtime *libpod.Runtime) (*libpod.Container, *cc.CreateConfig, error) {
var (
healthCheck *manifest.Schema2HealthConfig
err error
cidFile *os.File
)
if c.Bool("trace") {
span, _ := opentracing.StartSpanFromContext(ctx, "createContainer")
defer span.Finish()
}
if c.Bool("rm") && c.String("restart") != "" && c.String("restart") != "no" {
return nil, nil, errors.Errorf("the --rm option conflicts with --restart")
}
rtc, err := runtime.GetConfig()
if err != nil {
return nil, nil, err
}
rootfs := ""
if c.Bool("rootfs") {
rootfs = c.InputArgs[0]
}
if c.IsSet("cidfile") {
cidFile, err = util.OpenExclusiveFile(c.String("cidfile"))
if err != nil && os.IsExist(err) {
return nil, nil, errors.Errorf("container id file exists. Ensure another container is not using it or delete %s", c.String("cidfile"))
}
if err != nil {
return nil, nil, errors.Errorf("error opening cidfile %s", c.String("cidfile"))
}
defer errorhandling.CloseQuiet(cidFile)
defer errorhandling.SyncQuiet(cidFile)
}
imageName := ""
var imageData *inspect.ImageData = nil
// Set the storage if there is no rootfs specified
if rootfs == "" {
var writer io.Writer
if !c.Bool("quiet") {
writer = os.Stderr
}
name := ""
if len(c.InputArgs) != 0 {
name = c.InputArgs[0]
} else {
return nil, nil, errors.Errorf("error, image name not provided")
}
pullType, err := util.ValidatePullType(c.String("pull"))
if err != nil {
return nil, nil, err
}
overrideOS := c.String("override-os")
overrideArch := c.String("override-arch")
dockerRegistryOptions := image.DockerRegistryOptions{
OSChoice: overrideOS,
ArchitectureChoice: overrideArch,
}
newImage, err := runtime.ImageRuntime().New(ctx, name, rtc.SignaturePolicyPath, c.String("authfile"), writer, &dockerRegistryOptions, image.SigningOptions{}, nil, pullType)
if err != nil {
return nil, nil, err
}
imageData, err = newImage.InspectNoSize(ctx)
if err != nil {
return nil, nil, err
}
if overrideOS == "" && imageData.Os != goruntime.GOOS {
logrus.Infof("Using %q (OS) image on %q host", imageData.Os, goruntime.GOOS)
}
if overrideArch == "" && imageData.Architecture != goruntime.GOARCH {
logrus.Infof("Using %q (architecture) on %q host", imageData.Architecture, goruntime.GOARCH)
}
names := newImage.Names()
if len(names) > 0 {
imageName = names[0]
} else {
imageName = newImage.ID()
}
// if the user disabled the healthcheck with "none" or the no-healthcheck
// options is provided, we skip adding it
healthCheckCommandInput := c.String("healthcheck-command")
// the user didn't disable the healthcheck but did pass in a healthcheck command
// now we need to make a healthcheck from the commandline input
if healthCheckCommandInput != "none" && !c.Bool("no-healthcheck") {
if len(healthCheckCommandInput) > 0 {
healthCheck, err = makeHealthCheckFromCli(c)
if err != nil {
return nil, nil, errors.Wrapf(err, "unable to create healthcheck")
}
} else {
// the user did not disable the health check and did not pass in a healthcheck
// command as input. so now we add healthcheck if it exists AND is correct mediatype
_, mediaType, err := newImage.Manifest(ctx)
if err != nil {
return nil, nil, errors.Wrapf(err, "unable to determine mediatype of image %s", newImage.ID())
}
if mediaType == manifest.DockerV2Schema2MediaType {
healthCheck, err = newImage.GetHealthCheck(ctx)
if err != nil {
return nil, nil, errors.Wrapf(err, "unable to get healthcheck for %s", c.InputArgs[0])
}
if healthCheck != nil {
hcCommand := healthCheck.Test
if len(hcCommand) < 1 || hcCommand[0] == "" || hcCommand[0] == "NONE" {
// disable health check
healthCheck = nil
} else {
// apply defaults if image doesn't override them
if healthCheck.Interval == 0 {
healthCheck.Interval = 30 * time.Second
}
if healthCheck.Timeout == 0 {
healthCheck.Timeout = 30 * time.Second
}
/* Docker default is 0s, so the following would be a no-op
if healthCheck.StartPeriod == 0 {
healthCheck.StartPeriod = 0 * time.Second
}
*/
if healthCheck.Retries == 0 {
healthCheck.Retries = 3
}
}
}
}
}
}
}
createConfig, err := ParseCreateOpts(ctx, c, runtime, imageName, imageData)
if err != nil {
return nil, nil, err
}
// Because parseCreateOpts does derive anything from the image, we add health check
// at this point. The rest is done by WithOptions.
createConfig.HealthCheck = healthCheck
// TODO: Should be able to return this from ParseCreateOpts
var pod *libpod.Pod
if createConfig.Pod != "" {
pod, err = runtime.LookupPod(createConfig.Pod)
if err != nil {
return nil, nil, errors.Wrapf(err, "error looking up pod to join")
}
}
ctr, err := CreateContainerFromCreateConfig(runtime, createConfig, ctx, pod)
if err != nil {
return nil, nil, err
}
if cidFile != nil {
_, err = cidFile.WriteString(ctr.ID())
if err != nil {
logrus.Error(err)
}
}
logrus.Debugf("New container created %q", ctr.ID())
return ctr, createConfig, nil
}
func configureEntrypoint(c *GenericCLIResults, data *inspect.ImageData) []string {
entrypoint := []string{}
if c.IsSet("entrypoint") {
// Force entrypoint to ""
if c.String("entrypoint") == "" {
return entrypoint
}
// Check if entrypoint specified is json
if err := json.Unmarshal([]byte(c.String("entrypoint")), &entrypoint); err == nil {
return entrypoint
}
// Return entrypoint as a single command
return []string{c.String("entrypoint")}
}
if data != nil {
return data.Config.Entrypoint
}
return entrypoint
}
func configurePod(c *GenericCLIResults, runtime *libpod.Runtime, namespaces map[string]string, podName string) (map[string]string, string, error) {
pod, err := runtime.LookupPod(podName)
if err != nil {
return namespaces, "", err
}
podInfraID, err := pod.InfraContainerID()
if err != nil {
return namespaces, "", err
}
hasUserns := false
if podInfraID != "" {
podCtr, err := runtime.GetContainer(podInfraID)
if err != nil {
return namespaces, "", err
}
mappings, err := podCtr.IDMappings()
if err != nil {
return namespaces, "", err
}
hasUserns = len(mappings.UIDMap) > 0
}
if (namespaces["pid"] == cc.Pod) || (!c.IsSet("pid") && pod.SharesPID()) {
namespaces["pid"] = fmt.Sprintf("container:%s", podInfraID)
}
if (namespaces["net"] == cc.Pod) || (!c.IsSet("net") && !c.IsSet("network") && pod.SharesNet()) {
namespaces["net"] = fmt.Sprintf("container:%s", podInfraID)
}
if hasUserns && (namespaces["user"] == cc.Pod) || (!c.IsSet("user") && pod.SharesUser()) {
namespaces["user"] = fmt.Sprintf("container:%s", podInfraID)
}
if (namespaces["ipc"] == cc.Pod) || (!c.IsSet("ipc") && pod.SharesIPC()) {
namespaces["ipc"] = fmt.Sprintf("container:%s", podInfraID)
}
if (namespaces["uts"] == cc.Pod) || (!c.IsSet("uts") && pod.SharesUTS()) {
namespaces["uts"] = fmt.Sprintf("container:%s", podInfraID)
}
return namespaces, podInfraID, nil
}
// Parses CLI options related to container creation into a config which can be
// parsed into an OCI runtime spec
func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.Runtime, imageName string, data *inspect.ImageData) (*cc.CreateConfig, error) {
var (
inputCommand, command []string
memoryLimit, memoryReservation, memorySwap, memoryKernel int64
blkioWeight uint16
namespaces map[string]string
)
idmappings, err := util.ParseIDMapping(ns.UsernsMode(c.String("userns")), c.StringSlice("uidmap"), c.StringSlice("gidmap"), c.String("subuidname"), c.String("subgidname"))
if err != nil {
return nil, err
}
imageID := ""
inputCommand = c.InputArgs[1:]
if data != nil {
imageID = data.ID
}
rootfs := ""
if c.Bool("rootfs") {
rootfs = c.InputArgs[0]
}
if c.String("memory") != "" {
memoryLimit, err = units.RAMInBytes(c.String("memory"))
if err != nil {
return nil, errors.Wrapf(err, "invalid value for memory")
}
}
if c.String("memory-reservation") != "" {
memoryReservation, err = units.RAMInBytes(c.String("memory-reservation"))
if err != nil {
return nil, errors.Wrapf(err, "invalid value for memory-reservation")
}
}
if c.String("memory-swap") != "" {
if c.String("memory-swap") == "-1" {
memorySwap = -1
} else {
memorySwap, err = units.RAMInBytes(c.String("memory-swap"))
if err != nil {
return nil, errors.Wrapf(err, "invalid value for memory-swap")
}
}
}
if c.String("kernel-memory") != "" {
memoryKernel, err = units.RAMInBytes(c.String("kernel-memory"))
if err != nil {
return nil, errors.Wrapf(err, "invalid value for kernel-memory")
}
}
if c.String("blkio-weight") != "" {
u, err := strconv.ParseUint(c.String("blkio-weight"), 10, 16)
if err != nil {
return nil, errors.Wrapf(err, "invalid value for blkio-weight")
}
blkioWeight = uint16(u)
}
tty := c.Bool("tty")
if c.Changed("cpu-period") && c.Changed("cpus") {
return nil, errors.Errorf("--cpu-period and --cpus cannot be set together")
}
if c.Changed("cpu-quota") && c.Changed("cpus") {
return nil, errors.Errorf("--cpu-quota and --cpus cannot be set together")
}
if c.Bool("no-hosts") && c.Changed("add-host") {
return nil, errors.Errorf("--no-hosts and --add-host cannot be set together")
}
// EXPOSED PORTS
var portBindings map[nat.Port][]nat.PortBinding
if data != nil {
portBindings, err = cc.ExposedPorts(c.StringSlice("expose"), c.StringSlice("publish"), c.Bool("publish-all"), data.Config.ExposedPorts)
if err != nil {
return nil, err
}
}
// Kernel Namespaces
// TODO Fix handling of namespace from pod
// Instead of integrating here, should be done in libpod
// However, that also involves setting up security opts
// when the pod's namespace is integrated
namespaces = map[string]string{
"cgroup": c.String("cgroupns"),
"pid": c.String("pid"),
"net": c.String("network"),
"ipc": c.String("ipc"),
"user": c.String("userns"),
"uts": c.String("uts"),
}
originalPodName := c.String("pod")
podName := strings.Replace(originalPodName, "new:", "", 1)
// after we strip out :new, make sure there is something left for a pod name
if len(podName) < 1 && c.IsSet("pod") {
return nil, errors.Errorf("new pod name must be at least one character")
}
// If we are adding a container to a pod, we would like to add an annotation for the infra ID
// so kata containers can share VMs inside the pod
var podInfraID string
if c.IsSet("pod") {
if strings.HasPrefix(originalPodName, "new:") {
// pod does not exist; lets make it
var podOptions []libpod.PodCreateOption
podOptions = append(podOptions, libpod.WithPodName(podName), libpod.WithInfraContainer(), libpod.WithPodCgroups())
if len(portBindings) > 0 {
ociPortBindings, err := cc.NatToOCIPortBindings(portBindings)
if err != nil {
return nil, err
}
podOptions = append(podOptions, libpod.WithInfraContainerPorts(ociPortBindings))
}
podNsOptions, err := GetNamespaceOptions(strings.Split(DefaultKernelNamespaces, ","))
if err != nil {
return nil, err
}
podOptions = append(podOptions, podNsOptions...)
// make pod
pod, err := runtime.NewPod(ctx, podOptions...)
if err != nil {
return nil, err
}
logrus.Debugf("pod %s created by new container request", pod.ID())
// The container now cannot have port bindings; so we reset the map
portBindings = make(map[nat.Port][]nat.PortBinding)
}
namespaces, podInfraID, err = configurePod(c, runtime, namespaces, podName)
if err != nil {
return nil, err
}
}
pidMode := ns.PidMode(namespaces["pid"])
if !cc.Valid(string(pidMode), pidMode) {
return nil, errors.Errorf("--pid %q is not valid", c.String("pid"))
}
usernsMode := ns.UsernsMode(namespaces["user"])
if !cc.Valid(string(usernsMode), usernsMode) {
return nil, errors.Errorf("--userns %q is not valid", namespaces["user"])
}
utsMode := ns.UTSMode(namespaces["uts"])
if !cc.Valid(string(utsMode), utsMode) {
return nil, errors.Errorf("--uts %q is not valid", namespaces["uts"])
}
cgroupMode := ns.CgroupMode(namespaces["cgroup"])
if !cgroupMode.Valid() {
return nil, errors.Errorf("--cgroup %q is not valid", namespaces["cgroup"])
}
ipcMode := ns.IpcMode(namespaces["ipc"])
if !cc.Valid(string(ipcMode), ipcMode) {
return nil, errors.Errorf("--ipc %q is not valid", ipcMode)
}
// Make sure if network is set to container namespace, port binding is not also being asked for
netMode := ns.NetworkMode(namespaces["net"])
if netMode.IsContainer() {
if len(portBindings) > 0 {
return nil, errors.Errorf("cannot set port bindings on an existing container network namespace")
}
}
// USER
user := c.String("user")
if user == "" {
switch {
case usernsMode.IsKeepID():
user = fmt.Sprintf("%d:%d", rootless.GetRootlessUID(), rootless.GetRootlessGID())
case data == nil:
user = "0"
default:
user = data.Config.User
}
}
// STOP SIGNAL
stopSignal := syscall.SIGTERM
signalString := ""
if data != nil {
signalString = data.Config.StopSignal
}
if c.IsSet("stop-signal") {
signalString = c.String("stop-signal")
}
if signalString != "" {
stopSignal, err = util.ParseSignal(signalString)
if err != nil {
return nil, err
}
}
// ENVIRONMENT VARIABLES
//
// Precedence order (higher index wins):
// 1) env-host, 2) image data, 3) env-file, 4) env
env := map[string]string{
"container": "podman",
}
// Start with env-host
if c.Bool("env-host") {
osEnv, err := envLib.ParseSlice(os.Environ())
if err != nil {
return nil, errors.Wrap(err, "error parsing host environment variables")
}
env = envLib.Join(env, osEnv)
}
// Image data overrides any previous variables
if data != nil {
configEnv, err := envLib.ParseSlice(data.Config.Env)
if err != nil {
return nil, errors.Wrap(err, "error pasing image environment variables")
}
env = envLib.Join(env, configEnv)
}
// env-file overrides any previous variables
if c.IsSet("env-file") {
for _, f := range c.StringSlice("env-file") {
fileEnv, err := envLib.ParseFile(f)
if err != nil {
return nil, err
}
// File env is overridden by env.
env = envLib.Join(env, fileEnv)
}
}
// env overrides any previous variables
cmdlineEnv := c.StringSlice("env")
if len(cmdlineEnv) > 0 {
parsedEnv, err := envLib.ParseSlice(cmdlineEnv)
if err != nil {
return nil, err
}
env = envLib.Join(env, parsedEnv)
}
// LABEL VARIABLES
labels, err := parse.GetAllLabels(c.StringSlice("label-file"), c.StringArray("label"))
if err != nil {
return nil, errors.Wrapf(err, "unable to process labels")
}
if data != nil {
for key, val := range data.Config.Labels {
if _, ok := labels[key]; !ok {
labels[key] = val
}
}
}
// ANNOTATIONS
annotations := make(map[string]string)
// First, add our default annotations
annotations[ann.TTY] = "false"
if tty {
annotations[ann.TTY] = "true"
}
// in the event this container is in a pod, and the pod has an infra container
// we will want to configure it as a type "container" instead defaulting to
// the behavior of a "sandbox" container
// In Kata containers:
// - "sandbox" is the annotation that denotes the container should use its own
// VM, which is the default behavior
// - "container" denotes the container should join the VM of the SandboxID
// (the infra container)
if podInfraID != "" {
annotations[ann.SandboxID] = podInfraID
annotations[ann.ContainerType] = ann.ContainerTypeContainer
}
if data != nil {
// Next, add annotations from the image
for key, value := range data.Annotations {
annotations[key] = value
}
}
// Last, add user annotations
for _, annotation := range c.StringSlice("annotation") {
splitAnnotation := strings.SplitN(annotation, "=", 2)
if len(splitAnnotation) < 2 {
return nil, errors.Errorf("Annotations must be formatted KEY=VALUE")
}
annotations[splitAnnotation[0]] = splitAnnotation[1]
}
// WORKING DIRECTORY
workDir := "/"
if c.IsSet("workdir") {
workDir = c.String("workdir")
} else if data != nil && data.Config.WorkingDir != "" {
workDir = data.Config.WorkingDir
}
userCommand := []string{}
entrypoint := configureEntrypoint(c, data)
// Build the command
// If we have an entry point, it goes first
if len(entrypoint) > 0 {
command = entrypoint
}
if len(inputCommand) > 0 {
// User command overrides data CMD
command = append(command, inputCommand...)
userCommand = append(userCommand, inputCommand...)
} else if data != nil && len(data.Config.Cmd) > 0 && !c.IsSet("entrypoint") {
// If not user command, add CMD
command = append(command, data.Config.Cmd...)
userCommand = append(userCommand, data.Config.Cmd...)
}
if data != nil && len(command) == 0 {
return nil, errors.Errorf("No command specified on command line or as CMD or ENTRYPOINT in this image")
}
// SHM Size
shmSize, err := units.FromHumanSize(c.String("shm-size"))
if err != nil {
return nil, errors.Wrapf(err, "unable to translate --shm-size")
}
// Verify the additional hosts are in correct format
for _, host := range c.StringSlice("add-host") {
if _, err := parse.ValidateExtraHost(host); err != nil {
return nil, err
}
}
// Check for . and dns-search domains
if util.StringInSlice(".", c.StringSlice("dns-search")) && len(c.StringSlice("dns-search")) > 1 {
return nil, errors.Errorf("cannot pass additional search domains when also specifying '.'")
}
// Check for explicit dns-search domain of ''
if c.Changed("dns-search") && len(c.StringSlice("dns-search")) == 0 {
return nil, errors.Errorf("'' is not a valid domain")
}
// Validate domains are good
for _, dom := range c.StringSlice("dns-search") {
if dom == "." {
continue
}
if _, err := parse.ValidateDomain(dom); err != nil {
return nil, err
}
}
var ImageVolumes map[string]struct{}
if data != nil && c.String("image-volume") != "ignore" {
ImageVolumes = data.Config.Volumes
}
var imageVolType = map[string]string{
"bind": "",
"tmpfs": "",
"ignore": "",
}
if _, ok := imageVolType[c.String("image-volume")]; !ok {
return nil, errors.Errorf("invalid image-volume type %q. Pick one of bind, tmpfs, or ignore", c.String("image-volume"))
}
systemd := c.String("systemd") == "always"
if !systemd && command != nil {
x, err := strconv.ParseBool(c.String("systemd"))
if err != nil {
return nil, errors.Wrapf(err, "cannot parse bool %s", c.String("systemd"))
}
if x && (command[0] == "/usr/sbin/init" || command[0] == "/sbin/init" || (filepath.Base(command[0]) == "systemd")) {
systemd = true
}
}
if systemd {
if signalString == "" {
stopSignal, err = util.ParseSignal("RTMIN+3")
if err != nil {
return nil, errors.Wrapf(err, "error parsing systemd signal")
}
}
}
// This is done because cobra cannot have two aliased flags. So we have to check
// both
memorySwappiness := c.Int64("memory-swappiness")
logDriver := libpod.KubernetesLogging
if c.Changed("log-driver") {
logDriver = c.String("log-driver")
}
pidsLimit := c.Int64("pids-limit")
if c.String("cgroups") == "disabled" && !c.Changed("pids-limit") {
pidsLimit = 0
}
pid := &cc.PidConfig{
PidMode: pidMode,
}
ipc := &cc.IpcConfig{
IpcMode: ipcMode,
}
cgroup := &cc.CgroupConfig{
Cgroups: c.String("cgroups"),
Cgroupns: c.String("cgroupns"),
CgroupParent: c.String("cgroup-parent"),
CgroupMode: cgroupMode,
}
userns := &cc.UserConfig{
GroupAdd: c.StringSlice("group-add"),
IDMappings: idmappings,
UsernsMode: usernsMode,
User: user,
}
uts := &cc.UtsConfig{
UtsMode: utsMode,
NoHosts: c.Bool("no-hosts"),
HostAdd: c.StringSlice("add-host"),
Hostname: c.String("hostname"),
}
net := &cc.NetworkConfig{
DNSOpt: c.StringSlice("dns-opt"),
DNSSearch: c.StringSlice("dns-search"),
DNSServers: c.StringSlice("dns"),
HTTPProxy: c.Bool("http-proxy"),
MacAddress: c.String("mac-address"),
Network: c.String("network"),
NetMode: netMode,
IPAddress: c.String("ip"),
Publish: c.StringSlice("publish"),
PublishAll: c.Bool("publish-all"),
PortBindings: portBindings,
}
sysctl, err := validateSysctl(c.StringSlice("sysctl"))
if err != nil {
return nil, errors.Wrapf(err, "invalid value for sysctl")
}
secConfig := &cc.SecurityConfig{
CapAdd: c.StringSlice("cap-add"),
CapDrop: c.StringSlice("cap-drop"),
Privileged: c.Bool("privileged"),
ReadOnlyRootfs: c.Bool("read-only"),
ReadOnlyTmpfs: c.Bool("read-only-tmpfs"),
Sysctl: sysctl,
}
if err := secConfig.SetSecurityOpts(runtime, c.StringArray("security-opt")); err != nil {
return nil, err
}
// SECCOMP
if data != nil {
if value, exists := labels[seccomp.ContainerImageLabel]; exists {
secConfig.SeccompProfileFromImage = value
}
}
if policy, err := seccomp.LookupPolicy(c.String("seccomp-policy")); err != nil {
return nil, err
} else {
secConfig.SeccompPolicy = policy
}
config := &cc.CreateConfig{
Annotations: annotations,
BuiltinImgVolumes: ImageVolumes,
ConmonPidFile: c.String("conmon-pidfile"),
ImageVolumeType: c.String("image-volume"),
CidFile: c.String("cidfile"),
Command: command,
UserCommand: userCommand,
Detach: c.Bool("detach"),
Devices: c.StringSlice("device"),
Entrypoint: entrypoint,
Env: env,
// ExposedPorts: ports,
Init: c.Bool("init"),
InitPath: c.String("init-path"),
Image: imageName,
ImageID: imageID,
Interactive: c.Bool("interactive"),
// IP6Address: c.String("ipv6"), // Not implemented yet - needs CNI support for static v6
Labels: labels,
// LinkLocalIP: c.StringSlice("link-local-ip"), // Not implemented yet
LogDriver: logDriver,
LogDriverOpt: c.StringSlice("log-opt"),
Name: c.String("name"),
// NetworkAlias: c.StringSlice("network-alias"), // Not implemented - does this make sense in Podman?
Pod: podName,
Quiet: c.Bool("quiet"),
Resources: cc.CreateResourceConfig{
BlkioWeight: blkioWeight,
BlkioWeightDevice: c.StringSlice("blkio-weight-device"),
CPUShares: c.Uint64("cpu-shares"),
CPUPeriod: c.Uint64("cpu-period"),
CPUsetCPUs: c.String("cpuset-cpus"),
CPUsetMems: c.String("cpuset-mems"),
CPUQuota: c.Int64("cpu-quota"),
CPURtPeriod: c.Uint64("cpu-rt-period"),
CPURtRuntime: c.Int64("cpu-rt-runtime"),
CPUs: c.Float64("cpus"),
DeviceCgroupRules: c.StringSlice("device-cgroup-rule"),
DeviceReadBps: c.StringSlice("device-read-bps"),
DeviceReadIOps: c.StringSlice("device-read-iops"),
DeviceWriteBps: c.StringSlice("device-write-bps"),
DeviceWriteIOps: c.StringSlice("device-write-iops"),
DisableOomKiller: c.Bool("oom-kill-disable"),
ShmSize: shmSize,
Memory: memoryLimit,
MemoryReservation: memoryReservation,
MemorySwap: memorySwap,
MemorySwappiness: int(memorySwappiness),
KernelMemory: memoryKernel,
OomScoreAdj: c.Int("oom-score-adj"),
PidsLimit: pidsLimit,
Ulimit: c.StringSlice("ulimit"),
},
RestartPolicy: c.String("restart"),
Rm: c.Bool("rm"),
Security: *secConfig,
StopSignal: stopSignal,
StopTimeout: c.Uint("stop-timeout"),
Systemd: systemd,
Tmpfs: c.StringArray("tmpfs"),
Tty: tty,
MountsFlag: c.StringArray("mount"),
Volumes: c.StringArray("volume"),
WorkDir: workDir,
Rootfs: rootfs,
VolumesFrom: c.StringSlice("volumes-from"),
Syslog: c.Bool("syslog"),
Pid: *pid,
Ipc: *ipc,
Cgroup: *cgroup,
User: *userns,
Uts: *uts,
Network: *net,
}
warnings, err := verifyContainerResources(config, false)
if err != nil {
return nil, err
}
for _, warning := range warnings {
fmt.Fprintln(os.Stderr, warning)
}
return config, nil
}
func CreateContainerFromCreateConfig(r *libpod.Runtime, createConfig *cc.CreateConfig, ctx context.Context, pod *libpod.Pod) (*libpod.Container, error) {
runtimeSpec, options, err := createConfig.MakeContainerConfig(r, pod)
if err != nil {
return nil, err
}
// Set the CreateCommand explicitly. Some (future) consumers of libpod
// might not want to set it.
options = append(options, libpod.WithCreateCommand())
ctr, err := r.NewContainer(ctx, runtimeSpec, options...)
if err != nil {
return nil, err
}
return ctr, nil
}
func makeHealthCheckFromCli(c *GenericCLIResults) (*manifest.Schema2HealthConfig, error) {
inCommand := c.String("healthcheck-command")
inInterval := c.String("healthcheck-interval")
inRetries := c.Uint("healthcheck-retries")
inTimeout := c.String("healthcheck-timeout")
inStartPeriod := c.String("healthcheck-start-period")
// Every healthcheck requires a command
if len(inCommand) == 0 {
return nil, errors.New("Must define a healthcheck command for all healthchecks")
}
// first try to parse option value as JSON array of strings...
cmd := []string{}
err := json.Unmarshal([]byte(inCommand), &cmd)
if err != nil {
// ...otherwise pass it to "/bin/sh -c" inside the container
cmd = []string{"CMD-SHELL", inCommand}
}
hc := manifest.Schema2HealthConfig{
Test: cmd,
}
if inInterval == "disable" {
inInterval = "0"
}
intervalDuration, err := time.ParseDuration(inInterval)
if err != nil {
return nil, errors.Wrapf(err, "invalid healthcheck-interval %s ", inInterval)
}
hc.Interval = intervalDuration
if inRetries < 1 {
return nil, errors.New("healthcheck-retries must be greater than 0.")
}
hc.Retries = int(inRetries)
timeoutDuration, err := time.ParseDuration(inTimeout)
if err != nil {
return nil, errors.Wrapf(err, "invalid healthcheck-timeout %s", inTimeout)
}
if timeoutDuration < time.Duration(1) {
return nil, errors.New("healthcheck-timeout must be at least 1 second")
}
hc.Timeout = timeoutDuration
startPeriodDuration, err := time.ParseDuration(inStartPeriod)
if err != nil {
return nil, errors.Wrapf(err, "invalid healthcheck-start-period %s", inStartPeriod)
}
if startPeriodDuration < time.Duration(0) {
return nil, errors.New("healthcheck-start-period must be 0 seconds or greater")
}
hc.StartPeriod = startPeriodDuration
return &hc, nil
}
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