apiv2 container create using specgen

this uses the specgen structure to create containers rather than the outdated createconfig.  right now, only the apiv2 create is wired up.  eventually the cli will also have to be done.

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 216 insertions, 0 deletions

diff --git a/pkg/api/handlers/generic/containers_create.go b/pkg/api/handlers/generic/containers_create.go
new file mode 100644
index 000000000..7e542752f
--- /dev/null
+++ b/pkg/api/handlers/generic/containers_create.go
@@ -0,0 +1,216 @@
+package generic
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/containers/libpod/libpod"
+	"github.com/containers/libpod/libpod/define"
+	image2 "github.com/containers/libpod/libpod/image"
+	"github.com/containers/libpod/pkg/api/handlers"
+	"github.com/containers/libpod/pkg/api/handlers/utils"
+	"github.com/containers/libpod/pkg/namespaces"
+	"github.com/containers/libpod/pkg/signal"
+	createconfig "github.com/containers/libpod/pkg/spec"
+	"github.com/containers/storage"
+	"github.com/gorilla/schema"
+	"github.com/pkg/errors"
+	"golang.org/x/sys/unix"
+)
+
+func CreateContainer(w http.ResponseWriter, r *http.Request) {
+	runtime := r.Context().Value("runtime").(*libpod.Runtime)
+	decoder := r.Context().Value("decoder").(*schema.Decoder)
+	input := handlers.CreateContainerConfig{}
+	query := struct {
+		Name string `schema:"name"`
+	}{
+		// override any golang type defaults
+	}
+	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
+		utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
+			errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
+		return
+	}
+	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
+		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
+		return
+	}
+	if len(input.HostConfig.Links) > 0 {
+		utils.Error(w, utils.ErrLinkNotSupport.Error(), http.StatusBadRequest, errors.Wrapf(utils.ErrLinkNotSupport, "bad parameter"))
+	}
+	newImage, err := runtime.ImageRuntime().NewFromLocal(input.Image)
+	if err != nil {
+		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "NewFromLocal()"))
+		return
+	}
+	cc, err := makeCreateConfig(input, newImage)
+	if err != nil {
+		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "makeCreatConfig()"))
+		return
+	}
+	cc.Name = query.Name
+	utils.CreateContainer(r.Context(), w, runtime, &cc)
+}
+
+func makeCreateConfig(input handlers.CreateContainerConfig, newImage *image2.Image) (createconfig.CreateConfig, error) {
+	var (
+		err     error
+		init    bool
+		tmpfs   []string
+		volumes []string
+	)
+	env := make(map[string]string)
+	stopSignal := unix.SIGTERM
+	if len(input.StopSignal) > 0 {
+		stopSignal, err = signal.ParseSignal(input.StopSignal)
+		if err != nil {
+			return createconfig.CreateConfig{}, err
+		}
+	}
+
+	workDir := "/"
+	if len(input.WorkingDir) > 0 {
+		workDir = input.WorkingDir
+	}
+
+	stopTimeout := uint(define.CtrRemoveTimeout)
+	if input.StopTimeout != nil {
+		stopTimeout = uint(*input.StopTimeout)
+	}
+	c := createconfig.CgroupConfig{
+		Cgroups:      "", // podman
+		Cgroupns:     "", // podman
+		CgroupParent: "", // podman
+		CgroupMode:   "", // podman
+	}
+	security := createconfig.SecurityConfig{
+		CapAdd:             input.HostConfig.CapAdd,
+		CapDrop:            input.HostConfig.CapDrop,
+		LabelOpts:          nil,   // podman
+		NoNewPrivs:         false, // podman
+		ApparmorProfile:    "",    // podman
+		SeccompProfilePath: "",
+		SecurityOpts:       input.HostConfig.SecurityOpt,
+		Privileged:         input.HostConfig.Privileged,
+		ReadOnlyRootfs:     input.HostConfig.ReadonlyRootfs,
+		ReadOnlyTmpfs:      false, // podman-only
+		Sysctl:             input.HostConfig.Sysctls,
+	}
+
+	network := createconfig.NetworkConfig{
+		DNSOpt:       input.HostConfig.DNSOptions,
+		DNSSearch:    input.HostConfig.DNSSearch,
+		DNSServers:   input.HostConfig.DNS,
+		ExposedPorts: input.ExposedPorts,
+		HTTPProxy:    false, // podman
+		IP6Address:   "",
+		IPAddress:    "",
+		LinkLocalIP:  nil, // docker-only
+		MacAddress:   input.MacAddress,
+		// NetMode:      nil,
+		Network:      input.HostConfig.NetworkMode.NetworkName(),
+		NetworkAlias: nil, // docker-only now
+		PortBindings: input.HostConfig.PortBindings,
+		Publish:      nil, // podmanseccompPath
+		PublishAll:   input.HostConfig.PublishAllPorts,
+	}
+
+	uts := createconfig.UtsConfig{
+		UtsMode:  namespaces.UTSMode(input.HostConfig.UTSMode),
+		NoHosts:  false, //podman
+		HostAdd:  input.HostConfig.ExtraHosts,
+		Hostname: input.Hostname,
+	}
+
+	z := createconfig.UserConfig{
+		GroupAdd:   input.HostConfig.GroupAdd,
+		IDMappings: &storage.IDMappingOptions{}, // podman //TODO <--- fix this,
+		UsernsMode: namespaces.UsernsMode(input.HostConfig.UsernsMode),
+		User:       input.User,
+	}
+	pidConfig := createconfig.PidConfig{PidMode: namespaces.PidMode(input.HostConfig.PidMode)}
+	for k := range input.Volumes {
+		volumes = append(volumes, k)
+	}
+
+	// Docker is more flexible about its input where podman throws
+	// away incorrectly formatted variables so we cannot reuse the
+	// parsing of the env input
+	// [Foo Other=one Blank=]
+	for _, e := range input.Env {
+		splitEnv := strings.Split(e, "=")
+		switch len(splitEnv) {
+		case 0:
+			continue
+		case 1:
+			env[splitEnv[0]] = ""
+		default:
+			env[splitEnv[0]] = strings.Join(splitEnv[1:], "=")
+		}
+	}
+
+	// format the tmpfs mounts into a []string from map
+	for k, v := range input.HostConfig.Tmpfs {
+		tmpfs = append(tmpfs, fmt.Sprintf("%s:%s", k, v))
+	}
+
+	if input.HostConfig.Init != nil && *input.HostConfig.Init {
+		init = true
+	}
+
+	m := createconfig.CreateConfig{
+		Annotations:   nil, // podman
+		Args:          nil,
+		Cgroup:        c,
+		CidFile:       "",
+		ConmonPidFile: "", // podman
+		Command:       input.Cmd,
+		UserCommand:   input.Cmd, // podman
+		Detach:        false,     //
+		// Devices:            input.HostConfig.Devices,
+		Entrypoint:        input.Entrypoint,
+		Env:               env,
+		HealthCheck:       nil, //
+		Init:              init,
+		InitPath:          "", // tbd
+		Image:             input.Image,
+		ImageID:           newImage.ID(),
+		BuiltinImgVolumes: nil, // podman
+		ImageVolumeType:   "",  // podman
+		Interactive:       false,
+		// IpcMode:           input.HostConfig.IpcMode,
+		Labels:    input.Labels,
+		LogDriver: input.HostConfig.LogConfig.Type, // is this correct
+		// LogDriverOpt:       input.HostConfig.LogConfig.Config,
+		Name:          input.Name,
+		Network:       network,
+		Pod:           "",    // podman
+		PodmanPath:    "",    // podman
+		Quiet:         false, // front-end only
+		Resources:     createconfig.CreateResourceConfig{},
+		RestartPolicy: input.HostConfig.RestartPolicy.Name,
+		Rm:            input.HostConfig.AutoRemove,
+		StopSignal:    stopSignal,
+		StopTimeout:   stopTimeout,
+		Systemd:       false, // podman
+		Tmpfs:         tmpfs,
+		User:          z,
+		Uts:           uts,
+		Tty:           input.Tty,
+		Mounts:        nil, // we populate
+		// MountsFlag:         input.HostConfig.Mounts,
+		NamedVolumes: nil, // we populate
+		Volumes:      volumes,
+		VolumesFrom:  input.HostConfig.VolumesFrom,
+		WorkDir:      workDir,
+		Rootfs:       "", // podman
+		Security:     security,
+		Syslog:       false, // podman
+
+		Pid: pidConfig,
+	}
+	return m, nil
+}