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path: root/pkg/api/handlers/compat/containers_create.go
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Diffstat (limited to 'pkg/api/handlers/compat/containers_create.go')
-rw-r--r--pkg/api/handlers/compat/containers_create.go468
1 files changed, 466 insertions, 2 deletions
diff --git a/pkg/api/handlers/compat/containers_create.go b/pkg/api/handlers/compat/containers_create.go
index cd592a975..b9b7f6708 100644
--- a/pkg/api/handlers/compat/containers_create.go
+++ b/pkg/api/handlers/compat/containers_create.go
@@ -2,18 +2,29 @@ package compat
import (
"encoding/json"
+ "fmt"
+ "net"
"net/http"
+ "os"
+ "path/filepath"
+ "strconv"
+ "strings"
- "github.com/containers/podman/v4/cmd/podman/common"
+ "github.com/containers/common/libnetwork/types"
+ "github.com/containers/common/pkg/cgroups"
+ "github.com/containers/common/pkg/config"
"github.com/containers/podman/v4/libpod"
+ "github.com/containers/podman/v4/libpod/define"
"github.com/containers/podman/v4/pkg/api/handlers"
"github.com/containers/podman/v4/pkg/api/handlers/utils"
api "github.com/containers/podman/v4/pkg/api/types"
"github.com/containers/podman/v4/pkg/domain/entities"
"github.com/containers/podman/v4/pkg/domain/infra/abi"
+ "github.com/containers/podman/v4/pkg/rootless"
"github.com/containers/podman/v4/pkg/specgen"
"github.com/containers/podman/v4/pkg/specgenutil"
"github.com/containers/storage"
+ "github.com/docker/docker/api/types/mount"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
@@ -70,7 +81,7 @@ func CreateContainer(w http.ResponseWriter, r *http.Request) {
}
// Take body structure and convert to cliopts
- cliOpts, args, err := common.ContainerCreateToContainerCLIOpts(body, rtc)
+ cliOpts, args, err := cliOpts(body, rtc)
if err != nil {
utils.Error(w, http.StatusInternalServerError, errors.Wrap(err, "make cli opts()"))
return
@@ -107,3 +118,456 @@ func CreateContainer(w http.ResponseWriter, r *http.Request) {
}
utils.WriteResponse(w, http.StatusCreated, createResponse)
}
+
+func stringMaptoArray(m map[string]string) []string {
+ a := make([]string, 0, len(m))
+ for k, v := range m {
+ a = append(a, fmt.Sprintf("%s=%s", k, v))
+ }
+ return a
+}
+
+// cliOpts converts a compat input struct to cliopts
+func cliOpts(cc handlers.CreateContainerConfig, rtc *config.Config) (*entities.ContainerCreateOptions, []string, error) {
+ var (
+ capAdd []string
+ cappDrop []string
+ entrypoint *string
+ init bool
+ specPorts []types.PortMapping
+ )
+
+ if cc.HostConfig.Init != nil {
+ init = *cc.HostConfig.Init
+ }
+
+ // Iterate devices and convert to CLI expected string
+ devices := make([]string, 0, len(cc.HostConfig.Devices))
+ for _, dev := range cc.HostConfig.Devices {
+ devices = append(devices, fmt.Sprintf("%s:%s:%s", dev.PathOnHost, dev.PathInContainer, dev.CgroupPermissions))
+ }
+
+ // iterate blkreaddevicebps
+ readBps := make([]string, 0, len(cc.HostConfig.BlkioDeviceReadBps))
+ for _, dev := range cc.HostConfig.BlkioDeviceReadBps {
+ readBps = append(readBps, dev.String())
+ }
+
+ // iterate blkreaddeviceiops
+ readIops := make([]string, 0, len(cc.HostConfig.BlkioDeviceReadIOps))
+ for _, dev := range cc.HostConfig.BlkioDeviceReadIOps {
+ readIops = append(readIops, dev.String())
+ }
+
+ // iterate blkwritedevicebps
+ writeBps := make([]string, 0, len(cc.HostConfig.BlkioDeviceWriteBps))
+ for _, dev := range cc.HostConfig.BlkioDeviceWriteBps {
+ writeBps = append(writeBps, dev.String())
+ }
+
+ // iterate blkwritedeviceiops
+ writeIops := make([]string, 0, len(cc.HostConfig.BlkioDeviceWriteIOps))
+ for _, dev := range cc.HostConfig.BlkioDeviceWriteIOps {
+ writeIops = append(writeIops, dev.String())
+ }
+
+ // entrypoint
+ // can be a string or slice. if it is a slice, we need to
+ // marshall it to json; otherwise it should just be the string
+ // value
+ if len(cc.Config.Entrypoint) > 0 {
+ entrypoint = &cc.Config.Entrypoint[0]
+ if len(cc.Config.Entrypoint) > 1 {
+ b, err := json.Marshal(cc.Config.Entrypoint)
+ if err != nil {
+ return nil, nil, err
+ }
+ jsonString := string(b)
+ entrypoint = &jsonString
+ }
+ }
+
+ // expose ports
+ expose := make([]string, 0, len(cc.Config.ExposedPorts))
+ for p := range cc.Config.ExposedPorts {
+ expose = append(expose, fmt.Sprintf("%s/%s", p.Port(), p.Proto()))
+ }
+
+ // mounts type=tmpfs/bind,source=...,target=...=,opt=val
+ volSources := make(map[string]bool)
+ volDestinations := make(map[string]bool)
+ mounts := make([]string, 0, len(cc.HostConfig.Mounts))
+ var builder strings.Builder
+ for _, m := range cc.HostConfig.Mounts {
+ addField(&builder, "type", string(m.Type))
+ addField(&builder, "source", m.Source)
+ addField(&builder, "target", m.Target)
+
+ // Store source/dest so we don't add duplicates if a volume is
+ // also mentioned in cc.Volumes.
+ // Which Docker Compose v2.0 does, for unclear reasons...
+ volSources[m.Source] = true
+ volDestinations[m.Target] = true
+
+ if m.ReadOnly {
+ addField(&builder, "ro", "true")
+ }
+ addField(&builder, "consistency", string(m.Consistency))
+ // Map any specialized mount options that intersect between *Options and cli options
+ switch m.Type {
+ case mount.TypeBind:
+ if m.BindOptions != nil {
+ addField(&builder, "bind-propagation", string(m.BindOptions.Propagation))
+ addField(&builder, "bind-nonrecursive", strconv.FormatBool(m.BindOptions.NonRecursive))
+ }
+ case mount.TypeTmpfs:
+ if m.TmpfsOptions != nil {
+ addField(&builder, "tmpfs-size", strconv.FormatInt(m.TmpfsOptions.SizeBytes, 10))
+ addField(&builder, "tmpfs-mode", strconv.FormatUint(uint64(m.TmpfsOptions.Mode), 8))
+ }
+ case mount.TypeVolume:
+ // All current VolumeOpts are handled above
+ // See vendor/github.com/containers/common/pkg/parse/parse.go:ValidateVolumeOpts()
+ }
+ mounts = append(mounts, builder.String())
+ builder.Reset()
+ }
+
+ // dns
+ dns := make([]net.IP, 0, len(cc.HostConfig.DNS))
+ for _, d := range cc.HostConfig.DNS {
+ dns = append(dns, net.ParseIP(d))
+ }
+
+ // publish
+ for port, pbs := range cc.HostConfig.PortBindings {
+ for _, pb := range pbs {
+ var hostport int
+ var err error
+ if pb.HostPort != "" {
+ hostport, err = strconv.Atoi(pb.HostPort)
+ }
+ if err != nil {
+ return nil, nil, err
+ }
+ tmpPort := types.PortMapping{
+ HostIP: pb.HostIP,
+ ContainerPort: uint16(port.Int()),
+ HostPort: uint16(hostport),
+ Range: 0,
+ Protocol: port.Proto(),
+ }
+ specPorts = append(specPorts, tmpPort)
+ }
+ }
+
+ // netMode
+ nsmode, networks, netOpts, err := specgen.ParseNetworkFlag([]string{string(cc.HostConfig.NetworkMode)})
+ if err != nil {
+ return nil, nil, err
+ }
+
+ // network
+ // Note: we cannot emulate compat exactly here. we only allow specifics of networks to be
+ // defined when there is only one network.
+ netInfo := entities.NetOptions{
+ AddHosts: cc.HostConfig.ExtraHosts,
+ DNSOptions: cc.HostConfig.DNSOptions,
+ DNSSearch: cc.HostConfig.DNSSearch,
+ DNSServers: dns,
+ Network: nsmode,
+ PublishPorts: specPorts,
+ NetworkOptions: netOpts,
+ }
+
+ // network names
+ switch {
+ case len(cc.NetworkingConfig.EndpointsConfig) > 0:
+ endpointsConfig := cc.NetworkingConfig.EndpointsConfig
+ networks := make(map[string]types.PerNetworkOptions, len(endpointsConfig))
+ for netName, endpoint := range endpointsConfig {
+ netOpts := types.PerNetworkOptions{}
+ if endpoint != nil {
+ netOpts.Aliases = endpoint.Aliases
+
+ // if IP address is provided
+ if len(endpoint.IPAddress) > 0 {
+ staticIP := net.ParseIP(endpoint.IPAddress)
+ if staticIP == nil {
+ return nil, nil, errors.Errorf("failed to parse the ip address %q", endpoint.IPAddress)
+ }
+ netOpts.StaticIPs = append(netOpts.StaticIPs, staticIP)
+ }
+
+ if endpoint.IPAMConfig != nil {
+ // if IPAMConfig.IPv4Address is provided
+ if len(endpoint.IPAMConfig.IPv4Address) > 0 {
+ staticIP := net.ParseIP(endpoint.IPAMConfig.IPv4Address)
+ if staticIP == nil {
+ return nil, nil, errors.Errorf("failed to parse the ipv4 address %q", endpoint.IPAMConfig.IPv4Address)
+ }
+ netOpts.StaticIPs = append(netOpts.StaticIPs, staticIP)
+ }
+ // if IPAMConfig.IPv6Address is provided
+ if len(endpoint.IPAMConfig.IPv6Address) > 0 {
+ staticIP := net.ParseIP(endpoint.IPAMConfig.IPv6Address)
+ if staticIP == nil {
+ return nil, nil, errors.Errorf("failed to parse the ipv6 address %q", endpoint.IPAMConfig.IPv6Address)
+ }
+ netOpts.StaticIPs = append(netOpts.StaticIPs, staticIP)
+ }
+ }
+ // If MAC address is provided
+ if len(endpoint.MacAddress) > 0 {
+ staticMac, err := net.ParseMAC(endpoint.MacAddress)
+ if err != nil {
+ return nil, nil, errors.Errorf("failed to parse the mac address %q", endpoint.MacAddress)
+ }
+ netOpts.StaticMAC = types.HardwareAddr(staticMac)
+ }
+ }
+
+ networks[netName] = netOpts
+ }
+
+ netInfo.Networks = networks
+ case len(cc.HostConfig.NetworkMode) > 0:
+ netInfo.Networks = networks
+ }
+
+ parsedTmp := make([]string, 0, len(cc.HostConfig.Tmpfs))
+ for path, options := range cc.HostConfig.Tmpfs {
+ finalString := path
+ if options != "" {
+ finalString += ":" + options
+ }
+ parsedTmp = append(parsedTmp, finalString)
+ }
+
+ // Note: several options here are marked as "don't need". this is based
+ // on speculation by Matt and I. We think that these come into play later
+ // like with start. We believe this is just a difference in podman/compat
+ cliOpts := entities.ContainerCreateOptions{
+ // Attach: nil, // don't need?
+ Authfile: "",
+ CapAdd: append(capAdd, cc.HostConfig.CapAdd...),
+ CapDrop: append(cappDrop, cc.HostConfig.CapDrop...),
+ CgroupParent: cc.HostConfig.CgroupParent,
+ CIDFile: cc.HostConfig.ContainerIDFile,
+ CPUPeriod: uint64(cc.HostConfig.CPUPeriod),
+ CPUQuota: cc.HostConfig.CPUQuota,
+ CPURTPeriod: uint64(cc.HostConfig.CPURealtimePeriod),
+ CPURTRuntime: cc.HostConfig.CPURealtimeRuntime,
+ CPUShares: uint64(cc.HostConfig.CPUShares),
+ // CPUS: 0, // don't need?
+ CPUSetCPUs: cc.HostConfig.CpusetCpus,
+ CPUSetMems: cc.HostConfig.CpusetMems,
+ // Detach: false, // don't need
+ // DetachKeys: "", // don't need
+ Devices: devices,
+ DeviceCgroupRule: nil,
+ DeviceReadBPs: readBps,
+ DeviceReadIOPs: readIops,
+ DeviceWriteBPs: writeBps,
+ DeviceWriteIOPs: writeIops,
+ Entrypoint: entrypoint,
+ Env: cc.Config.Env,
+ Expose: expose,
+ GroupAdd: cc.HostConfig.GroupAdd,
+ Hostname: cc.Config.Hostname,
+ ImageVolume: "bind",
+ Init: init,
+ Interactive: cc.Config.OpenStdin,
+ IPC: string(cc.HostConfig.IpcMode),
+ Label: stringMaptoArray(cc.Config.Labels),
+ LogDriver: cc.HostConfig.LogConfig.Type,
+ LogOptions: stringMaptoArray(cc.HostConfig.LogConfig.Config),
+ Name: cc.Name,
+ OOMScoreAdj: &cc.HostConfig.OomScoreAdj,
+ Arch: "",
+ OS: "",
+ Variant: "",
+ PID: string(cc.HostConfig.PidMode),
+ PIDsLimit: cc.HostConfig.PidsLimit,
+ Privileged: cc.HostConfig.Privileged,
+ PublishAll: cc.HostConfig.PublishAllPorts,
+ Quiet: false,
+ ReadOnly: cc.HostConfig.ReadonlyRootfs,
+ ReadOnlyTmpFS: true, // podman default
+ Rm: cc.HostConfig.AutoRemove,
+ SecurityOpt: cc.HostConfig.SecurityOpt,
+ StopSignal: cc.Config.StopSignal,
+ StorageOpts: stringMaptoArray(cc.HostConfig.StorageOpt),
+ Sysctl: stringMaptoArray(cc.HostConfig.Sysctls),
+ Systemd: "true", // podman default
+ TmpFS: parsedTmp,
+ TTY: cc.Config.Tty,
+ UnsetEnv: cc.UnsetEnv,
+ UnsetEnvAll: cc.UnsetEnvAll,
+ User: cc.Config.User,
+ UserNS: string(cc.HostConfig.UsernsMode),
+ UTS: string(cc.HostConfig.UTSMode),
+ Mount: mounts,
+ VolumesFrom: cc.HostConfig.VolumesFrom,
+ Workdir: cc.Config.WorkingDir,
+ Net: &netInfo,
+ HealthInterval: define.DefaultHealthCheckInterval,
+ HealthRetries: define.DefaultHealthCheckRetries,
+ HealthTimeout: define.DefaultHealthCheckTimeout,
+ HealthStartPeriod: define.DefaultHealthCheckStartPeriod,
+ }
+ if !rootless.IsRootless() {
+ var ulimits []string
+ if len(cc.HostConfig.Ulimits) > 0 {
+ for _, ul := range cc.HostConfig.Ulimits {
+ ulimits = append(ulimits, ul.String())
+ }
+ cliOpts.Ulimit = ulimits
+ }
+ }
+ if cc.HostConfig.Resources.NanoCPUs > 0 {
+ if cliOpts.CPUPeriod != 0 || cliOpts.CPUQuota != 0 {
+ return nil, nil, errors.Errorf("NanoCpus conflicts with CpuPeriod and CpuQuota")
+ }
+ cliOpts.CPUPeriod = 100000
+ cliOpts.CPUQuota = cc.HostConfig.Resources.NanoCPUs / 10000
+ }
+
+ // volumes
+ for _, vol := range cc.HostConfig.Binds {
+ cliOpts.Volume = append(cliOpts.Volume, vol)
+ // Extract the destination so we don't add duplicate mounts in
+ // the volumes phase.
+ splitVol := strings.SplitN(vol, ":", 3)
+ switch len(splitVol) {
+ case 1:
+ volDestinations[vol] = true
+ default:
+ volSources[splitVol[0]] = true
+ volDestinations[splitVol[1]] = true
+ }
+ }
+ // Anonymous volumes are added differently from other volumes, in their
+ // own special field, for reasons known only to Docker. Still use the
+ // format of `-v` so we can just append them in there.
+ // Unfortunately, these may be duplicates of existing mounts in Binds.
+ // So... We need to catch that.
+ // This also handles volumes duplicated between cc.HostConfig.Mounts and
+ // cc.Volumes, as seen in compose v2.0.
+ for vol := range cc.Volumes {
+ if _, ok := volDestinations[filepath.Clean(vol)]; ok {
+ continue
+ }
+ cliOpts.Volume = append(cliOpts.Volume, vol)
+ }
+ // Make mount points for compat volumes
+ for vol := range volSources {
+ // This might be a named volume.
+ // Assume it is if it's not an absolute path.
+ if !filepath.IsAbs(vol) {
+ continue
+ }
+ // If volume already exists, there is nothing to do
+ if _, err := os.Stat(vol); err == nil {
+ continue
+ }
+ if err := os.MkdirAll(vol, 0o755); err != nil {
+ if !os.IsExist(err) {
+ return nil, nil, errors.Wrapf(err, "error making volume mountpoint for volume %s", vol)
+ }
+ }
+ }
+ if len(cc.HostConfig.BlkioWeightDevice) > 0 {
+ devices := make([]string, 0, len(cc.HostConfig.BlkioWeightDevice))
+ for _, d := range cc.HostConfig.BlkioWeightDevice {
+ devices = append(devices, d.String())
+ }
+ cliOpts.BlkIOWeightDevice = devices
+ }
+ if cc.HostConfig.BlkioWeight > 0 {
+ cliOpts.BlkIOWeight = strconv.Itoa(int(cc.HostConfig.BlkioWeight))
+ }
+
+ if cc.HostConfig.Memory > 0 {
+ cliOpts.Memory = strconv.Itoa(int(cc.HostConfig.Memory))
+ }
+
+ if cc.HostConfig.MemoryReservation > 0 {
+ cliOpts.MemoryReservation = strconv.Itoa(int(cc.HostConfig.MemoryReservation))
+ }
+
+ cgroupsv2, err := cgroups.IsCgroup2UnifiedMode()
+ if err != nil {
+ return nil, nil, err
+ }
+ if cc.HostConfig.MemorySwap > 0 && (!rootless.IsRootless() || (rootless.IsRootless() && cgroupsv2)) {
+ cliOpts.MemorySwap = strconv.Itoa(int(cc.HostConfig.MemorySwap))
+ }
+
+ if cc.Config.StopTimeout != nil {
+ cliOpts.StopTimeout = uint(*cc.Config.StopTimeout)
+ }
+
+ if cc.HostConfig.ShmSize > 0 {
+ cliOpts.ShmSize = strconv.Itoa(int(cc.HostConfig.ShmSize))
+ }
+
+ if len(cc.HostConfig.RestartPolicy.Name) > 0 {
+ policy := cc.HostConfig.RestartPolicy.Name
+ // only add restart count on failure
+ if cc.HostConfig.RestartPolicy.IsOnFailure() {
+ policy += fmt.Sprintf(":%d", cc.HostConfig.RestartPolicy.MaximumRetryCount)
+ }
+ cliOpts.Restart = policy
+ }
+
+ if cc.HostConfig.MemorySwappiness != nil && (!rootless.IsRootless() || rootless.IsRootless() && cgroupsv2 && rtc.Engine.CgroupManager == "systemd") {
+ cliOpts.MemorySwappiness = *cc.HostConfig.MemorySwappiness
+ } else {
+ cliOpts.MemorySwappiness = -1
+ }
+ if cc.HostConfig.OomKillDisable != nil {
+ cliOpts.OOMKillDisable = *cc.HostConfig.OomKillDisable
+ }
+ if cc.Config.Healthcheck != nil {
+ finCmd := ""
+ for _, str := range cc.Config.Healthcheck.Test {
+ finCmd = finCmd + str + " "
+ }
+ if len(finCmd) > 1 {
+ finCmd = finCmd[:len(finCmd)-1]
+ }
+ cliOpts.HealthCmd = finCmd
+ if cc.Config.Healthcheck.Interval > 0 {
+ cliOpts.HealthInterval = cc.Config.Healthcheck.Interval.String()
+ }
+ if cc.Config.Healthcheck.Retries > 0 {
+ cliOpts.HealthRetries = uint(cc.Config.Healthcheck.Retries)
+ }
+ if cc.Config.Healthcheck.StartPeriod > 0 {
+ cliOpts.HealthStartPeriod = cc.Config.Healthcheck.StartPeriod.String()
+ }
+ if cc.Config.Healthcheck.Timeout > 0 {
+ cliOpts.HealthTimeout = cc.Config.Healthcheck.Timeout.String()
+ }
+ }
+
+ // specgen assumes the image name is arg[0]
+ cmd := []string{cc.Config.Image}
+ cmd = append(cmd, cc.Config.Cmd...)
+ return &cliOpts, cmd, nil
+}
+
+// addField is a helper function to populate mount options
+func addField(b *strings.Builder, name, value string) {
+ if value == "" {
+ return
+ }
+
+ if b.Len() > 0 {
+ b.WriteRune(',')
+ }
+ b.WriteString(name)
+ b.WriteRune('=')
+ b.WriteString(value)
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-15 08:17:38 +0000