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package libpod
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strconv"
"github.com/containers/podman/v4/libpod"
"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/specgen"
"github.com/containers/podman/v4/pkg/specgen/generate"
"github.com/containers/podman/v4/pkg/specgenutil"
)
// CreateContainer takes a specgenerator and makes a container. It returns
// the new container ID on success along with any warnings.
func CreateContainer(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
conf, err := runtime.GetConfigNoCopy()
if err != nil {
utils.InternalServerError(w, err)
return
}
// we have to set the default before we decode to make sure the correct default is set when the field is unset
sg := specgen.SpecGenerator{
ContainerNetworkConfig: specgen.ContainerNetworkConfig{
UseImageHosts: conf.Containers.NoHosts,
},
ContainerSecurityConfig: specgen.ContainerSecurityConfig{
Umask: conf.Containers.Umask,
},
}
if err := json.NewDecoder(r.Body).Decode(&sg); err != nil {
utils.Error(w, http.StatusInternalServerError, fmt.Errorf("decode(): %w", err))
return
}
if sg.Passwd == nil {
t := true
sg.Passwd = &t
}
// need to check for memory limit to adjust swap
if sg.ResourceLimits != nil && sg.ResourceLimits.Memory != nil {
s := ""
var l int64
if sg.ResourceLimits.Memory.Swap != nil {
s = strconv.Itoa(int(*sg.ResourceLimits.Memory.Swap))
}
if sg.ResourceLimits.Memory.Limit != nil {
l = *sg.ResourceLimits.Memory.Limit
}
specgenutil.LimitToSwap(sg.ResourceLimits.Memory, s, l)
}
warn, err := generate.CompleteSpec(r.Context(), runtime, &sg)
if err != nil {
utils.InternalServerError(w, err)
return
}
rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), runtime, &sg, false, nil)
if err != nil {
utils.InternalServerError(w, err)
return
}
ctr, err := generate.ExecuteCreate(context.Background(), runtime, rtSpec, spec, false, opts...)
if err != nil {
utils.InternalServerError(w, err)
return
}
response := entities.ContainerCreateResponse{ID: ctr.ID(), Warnings: warn}
utils.WriteJSON(w, http.StatusCreated, response)
}
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