Use request Context() in API handlers

Request object has its own context which must be used during a request
lifetime instead of just context.Background()

[NO NEW TESTS NEEDED]

Signed-off-by: Vladimir Kochnev <hashtable@yandex.ru>

pkg/api/handlers/compat/auth.go

@@ -1,7 +1,6 @@
 package compat
 
 import (
-	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -44,7 +43,7 @@ func Auth(w http.ResponseWriter, r *http.Request) {
 
 	fmt.Println("Authenticating with existing credentials...")
 	registry := stripAddressOfScheme(authConfig.ServerAddress)
-	if err := DockerClient.CheckAuth(context.Background(), sysCtx, authConfig.Username, authConfig.Password, registry); err == nil {
+	if err := DockerClient.CheckAuth(r.Context(), sysCtx, authConfig.Username, authConfig.Password, registry); err == nil {
 		utils.WriteResponse(w, http.StatusOK, entities.AuthReport{
 			IdentityToken: "",
 			Status:        "Login Succeeded",

pkg/api/handlers/compat/images_build.go

@@ -694,7 +694,7 @@ func BuildImage(w http.ResponseWriter, r *http.Request) {
 		success bool
 	)
 
-	runCtx, cancel := context.WithCancel(context.Background())
+	runCtx, cancel := context.WithCancel(r.Context())
 	go func() {
 		defer cancel()
 		imageID, _, err = runtime.Build(r.Context(), buildOptions, containerFiles...)

pkg/api/handlers/libpod/containers_create.go

@@ -1,7 +1,6 @@
 package libpod
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"net/http"
@@ -63,12 +62,12 @@ func CreateContainer(w http.ResponseWriter, r *http.Request) {
 		utils.InternalServerError(w, err)
 		return
 	}
-	rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), runtime, &sg, false, nil)
+	rtSpec, spec, opts, err := generate.MakeContainer(r.Context(), runtime, &sg, false, nil)
 	if err != nil {
 		utils.InternalServerError(w, err)
 		return
 	}
-	ctr, err := generate.ExecuteCreate(context.Background(), runtime, rtSpec, spec, false, opts...)
+	ctr, err := generate.ExecuteCreate(r.Context(), runtime, rtSpec, spec, false, opts...)
 	if err != nil {
 		utils.InternalServerError(w, err)
 		return

pkg/api/handlers/libpod/images_push.go

@@ -90,7 +90,7 @@ func PushImage(w http.ResponseWriter, r *http.Request) {
 
 	// Let's keep thing simple when running in quiet mode and push directly.
 	if query.Quiet {
-		if err := imageEngine.Push(context.Background(), source, destination, options); err != nil {
+		if err := imageEngine.Push(r.Context(), source, destination, options); err != nil {
 			utils.Error(w, http.StatusBadRequest, fmt.Errorf("error pushing image %q: %w", destination, err))
 			return
 		}

pkg/api/handlers/libpod/manifests.go

@@ -293,7 +293,7 @@ func ManifestPushV3(w http.ResponseWriter, r *http.Request) {
 		options.SkipTLSVerify = types.NewOptionalBool(!query.TLSVerify)
 	}
 	imageEngine := abi.ImageEngine{Libpod: runtime}
-	digest, err := imageEngine.ManifestPush(context.Background(), source, query.Destination, options)
+	digest, err := imageEngine.ManifestPush(r.Context(), source, query.Destination, options)
 	if err != nil {
 		utils.Error(w, http.StatusBadRequest, fmt.Errorf("error pushing image %q: %w", query.Destination, err))
 		return
@@ -367,7 +367,7 @@ func ManifestPush(w http.ResponseWriter, r *http.Request) {
 
 	// Let's keep thing simple when running in quiet mode and push directly.
 	if query.Quiet {
-		digest, err := imageEngine.ManifestPush(context.Background(), source, destination, options)
+		digest, err := imageEngine.ManifestPush(r.Context(), source, destination, options)
 		if err != nil {
 			utils.Error(w, http.StatusBadRequest, fmt.Errorf("error pushing image %q: %w", destination, err))
 			return

pkg/api/handlers/types.go

@@ -162,7 +162,7 @@ type ExecStartConfig struct {
 
 func ImageDataToImageInspect(ctx context.Context, l *libimage.Image) (*ImageInspect, error) {
 	options := &libimage.InspectOptions{WithParent: true, WithSize: true}
-	info, err := l.Inspect(context.Background(), options)
+	info, err := l.Inspect(ctx, options)
 	if err != nil {
 		return nil, err
 	}