fix tests, simplify and integrate credentials properly

internal/actions/mocks/container.go

@@ -17,6 +17,7 @@ func CreateMockContainer(id string, name string, image string, created time.Time
 			Created: created.String(),
 		},
 		Config: &container2.Config{
+			Image:  image,
 			Labels: make(map[string]string),
 		},
 	}
@@ -24,9 +25,38 @@ func CreateMockContainer(id string, name string, image string, created time.Time
 		&content,
 		&types.ImageInspect{
 			ID: image,
+			RepoDigests: []string{
+				image,
+			},
 		},
 	)
 }
+// CreateMockContainerWithImageInfo should only be used for testing
+func CreateMockContainerWithImageInfo(id string, name string, image string, created time.Time, imageInfo types.ImageInspect) container.Container {
+	content := types.ContainerJSON{
+		ContainerJSONBase: &types.ContainerJSONBase{
+			ID:      id,
+			Image:   image,
+			Name:    name,
+			Created: created.String(),
+		},
+		Config: &container2.Config{
+			Image:  image,
+			Labels: make(map[string]string),
+		},
+	}
+	return *container.NewContainer(
+		&content,
+		&imageInfo,
+	)
+}
+
+// CreateMockContainerWithDigest should only be used for testing
+func CreateMockContainerWithDigest(id string, name string, image string, created time.Time, digest string) container.Container {
+	c := CreateMockContainer(id, name, image, created)
+	c.ImageInfo().RepoDigests = []string{digest}
+	return c
+}
 
 // CreateMockContainerWithConfig creates a container substitute valid for testing
 func CreateMockContainerWithConfig(id string, name string, image string, created time.Time, config *container2.Config) container.Container {

pkg/container/client.go

@@ -294,7 +294,7 @@ func (client dockerClient) PullImage(ctx context.Context, container Container) e
 
 	log.WithFields(fields).Debugf("Checking if pull is needed")
 
-	if match, err := digest.CompareDigest(ctx, *container.ImageInfo(), nil); err != nil {
+	if match, err := digest.CompareDigest(ctx, container, opts.RegistryAuth); err != nil {
 		log.Info("Could not do a head request, falling back to regulara pull.")
 		log.Debugf("Reason: %s", err.Error())
 	} else if match {

pkg/logger/logger.go

@@ -1,42 +0,0 @@
-package logger
-
-import (
-	"context"
-	"github.com/sirupsen/logrus"
-)
-
-type contextKeyType string
-
-const contextKey = contextKeyType("LogrusLoggerContext")
-
-// GetLogger returns a logger from the context if one is available, otherwise a default logger
-func GetLogger(ctx context.Context) *logrus.Logger {
-	if logger, ok := ctx.Value(contextKey).(logrus.Logger); ok {
-		return &logger
-	}
-	return newLogger(&logrus.JSONFormatter{}, logrus.InfoLevel)
-}
-
-// AddLogger adds a logger to the passed context
-func AddLogger(ctx context.Context) context.Context {
-	return setLogger(ctx, &logrus.JSONFormatter{}, logrus.InfoLevel)
-}
-
-// AddDebugLogger adds a text-formatted debug logger to the passed context
-func AddDebugLogger(ctx context.Context) context.Context {
-	return setLogger(ctx, &logrus.TextFormatter{}, logrus.DebugLevel)
-}
-
-// SetLogger adds a logger to the supplied context
-func setLogger(ctx context.Context, fmt logrus.Formatter, level logrus.Level) context.Context {
-	log := newLogger(fmt, level)
-	return context.WithValue(ctx, contextKey, log)
-}
-
-func newLogger(fmt logrus.Formatter, level logrus.Level) *logrus.Logger {
-	log := logrus.New()
-
-	log.SetFormatter(fmt)
-	log.SetLevel(level)
-	return log
-}

pkg/registry/auth/auth.go

@@ -5,11 +5,9 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/containrrr/watchtower/pkg/logger"
 	"github.com/containrrr/watchtower/pkg/registry/helpers"
 	"github.com/containrrr/watchtower/pkg/types"
 	"github.com/docker/distribution/reference"
-	apiTypes "github.com/docker/docker/api/types"
 	"github.com/sirupsen/logrus"
 	"io/ioutil"
 	"net/http"
@@ -21,22 +19,21 @@ import (
 const ChallengeHeader = "WWW-Authenticate"
 
 // GetToken fetches a token for the registry hosting the provided image
-func GetToken(ctx context.Context, image apiTypes.ImageInspect, credentials *types.RegistryCredentials) (string, error) {
+func GetToken(ctx context.Context, container types.Container, registryAuth string) (string, error) {
 	var err error
-	log := logger.GetLogger(ctx)
 
-	img := strings.Split(image.RepoTags[0], ":")[0]
 	var url url2.URL
-	if url, err = GetChallengeURL(img); err != nil {
+	if url, err = GetChallengeURL(container.ImageName()); err != nil {
 		return "", err
 	}
+	logrus.WithField("url", url.String()).Debug("Building challenge URL")
 
 	var req *http.Request
 	if req, err = GetChallengeRequest(url); err != nil {
 		return "", err
 	}
 
-	var client = http.Client{}
+	client := &http.Client{}
 	var res *http.Response
 	if res, err = client.Do(req); err != nil {
 		return "", err
@@ -44,17 +41,21 @@ func GetToken(ctx context.Context, image apiTypes.ImageInspect, credentials *typ
 
 	v := res.Header.Get(ChallengeHeader)
 
-	log.WithFields(logrus.Fields{
+	logrus.WithFields(logrus.Fields{
 		"status": res.Status,
 		"header": v,
 	}).Debug("Got response to challenge request")
+
 	challenge := strings.ToLower(v)
 	if strings.HasPrefix(challenge, "basic") {
-		return "", errors.New("basic auth not implemented yet")
+		if registryAuth == "" {
+			return "", fmt.Errorf("no credentials available")
+		}
+
+		return fmt.Sprintf("Basic %s", registryAuth), nil
 	}
 	if strings.HasPrefix(challenge, "bearer") {
-		log.Debug("Fetching bearer token")
-		return GetBearerToken(ctx, challenge, img, err, credentials)
+		return GetBearerHeader(ctx, challenge, container.ImageName(), err, registryAuth)
 	}
 
 	return "", errors.New("unsupported challenge type from registry")
@@ -62,7 +63,6 @@ func GetToken(ctx context.Context, image apiTypes.ImageInspect, credentials *typ
 
 // GetChallengeRequest creates a request for getting challenge instructions
 func GetChallengeRequest(url url2.URL) (*http.Request, error) {
-
 	req, err := http.NewRequest("GET", url.String(), nil)
 	if err != nil {
 		return nil, err
@@ -72,12 +72,14 @@ func GetChallengeRequest(url url2.URL) (*http.Request, error) {
 	return req, nil
 }
 
-// GetBearerToken tries to fetch a bearer token from the registry based on the challenge instructions
-func GetBearerToken(ctx context.Context, challenge string, img string, err error, credentials *types.RegistryCredentials) (string, error) {
-	log := logger.GetLogger(ctx)
+// GetBearerHeader tries to fetch a bearer token from the registry based on the challenge instructions
+func GetBearerHeader(ctx context.Context, challenge string, img string, err error, registryAuth string) (string, error) {
 	client := http.Client{}
-
+	if strings.Contains(img, ":") {
+		img = strings.Split(img, ":")[0]
+	}
 	authURL, err := GetAuthURL(challenge, img)
+
 	if err != nil {
 		return "", err
 	}
@@ -87,11 +89,11 @@ func GetBearerToken(ctx context.Context, challenge string, img string, err error
 		return "", err
 	}
 
-	if credentials != nil && credentials.Username != "" && credentials.Password != "" {
-		log.WithField("credentials", credentials).Debug("Found credentials. Adding basic auth.")
-		r.SetBasicAuth(credentials.Username, credentials.Password)
+	if registryAuth != "" {
+		logrus.WithField("credentials", registryAuth).Debug("Credentials found.")
+		r.Header.Add("Authorization", fmt.Sprintf("Basic %s", registryAuth))
 	} else {
-		log.Debug("No credentials found. Doing an anonymous request.")
+		logrus.Debug("No credentials found.")
 	}
 
 	var authResponse *http.Response
@@ -107,7 +109,7 @@ func GetBearerToken(ctx context.Context, challenge string, img string, err error
 		return "", err
 	}
 
-	return tokenResponse.Token, nil
+	return fmt.Sprintf("Bearer %s", tokenResponse.Token), nil
 }
 
 // GetAuthURL from the instructions in the challenge
@@ -124,11 +126,12 @@ func GetAuthURL(challenge string, img string) (*url2.URL, error) {
 		val := strings.Trim(kv[1], "\"")
 		values[key] = val
 	}
+	logrus.WithFields(logrus.Fields{
+		"realm":   values["realm"],
+		"service": values["service"],
+	}).Debug("Checking challenge header content")
 	if values["realm"] == "" || values["service"] == "" {
-		logrus.WithFields(logrus.Fields{
-			"realm":   values["realm"],
-			"service": values["service"],
-		}).Debug("Checking challenge header content")
+
 		return nil, fmt.Errorf("challenge header did not include all values needed to construct an auth url")
 	}
 
@@ -140,6 +143,7 @@ func GetAuthURL(challenge string, img string) (*url2.URL, error) {
 		scopeImage = "library/" + scopeImage
 	}
 	scope := fmt.Sprintf("repository:%s:pull", scopeImage)
+	logrus.WithFields(logrus.Fields{"scope": scope, "image": img}).Debug("Setting scope for auth token")
 	q.Add("scope", scope)
 
 	authURL.RawQuery = q.Encode()
@@ -148,8 +152,9 @@ func GetAuthURL(challenge string, img string) (*url2.URL, error) {
 
 // GetChallengeURL creates a URL object based on the image info
 func GetChallengeURL(img string) (url2.URL, error) {
+
 	normalizedNamed, _ := reference.ParseNormalizedNamed(img)
-	host, err := helpers.NormalizeRegistry(normalizedNamed.Name())
+	host, err := helpers.NormalizeRegistry(normalizedNamed.String())
 	if err != nil {
 		return url2.URL{}, err
 	}

pkg/registry/auth/auth_test.go

@@ -1,14 +1,16 @@
-package auth
+package auth_test
 
 import (
 	"context"
+	"fmt"
+	"github.com/containrrr/watchtower/internal/actions/mocks"
+	"github.com/containrrr/watchtower/pkg/registry/auth"
 	"net/url"
 	"os"
 	"testing"
+	"time"
 
-	"github.com/containrrr/watchtower/pkg/logger"
 	wtTypes "github.com/containrrr/watchtower/pkg/types"
-	"github.com/docker/docker/api/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )
@@ -37,21 +39,24 @@ var GHCRCredentials = &wtTypes.RegistryCredentials{
 }
 
 var _ = Describe("the auth module", func() {
-	var ctx = logger.AddDebugLogger(context.Background())
-	var ghImage = types.ImageInspect{
-		ID: "sha256:6972c414f322dfa40324df3c503d4b217ccdec6d576e408ed10437f508f4181b",
-		RepoTags: []string{
-			"ghcr.io/k6io/operator:latest",
-		},
-		RepoDigests: []string{
-			"ghcr.io/k6io/operator@sha256:d68e1e532088964195ad3a0a71526bc2f11a78de0def85629beb75e2265f0547",
-		},
-	}
+	mockId := "mock-id"
+	mockName := "mock-container"
+	mockImage := "ghcr.io/k6io/operator:latest"
+	mockCreated := time.Now()
+	mockDigest := "ghcr.io/k6io/operator@sha256:d68e1e532088964195ad3a0a71526bc2f11a78de0def85629beb75e2265f0547"
+
+	mockContainer := mocks.CreateMockContainerWithDigest(
+		mockId,
+		mockName,
+		mockImage,
+		mockCreated,
+		mockDigest)
 
 	When("getting an auth url", func() {
 		It("should parse the token from the response",
 			SkipIfCredentialsEmpty(GHCRCredentials, func() {
-				token, err := GetToken(ctx, ghImage, GHCRCredentials)
+				creds := fmt.Sprintf("%s:%s", GHCRCredentials.Username, GHCRCredentials.Password)
+				token, err := auth.GetToken(context.Background(), mockContainer, creds)
 				Expect(err).NotTo(HaveOccurred())
 				Expect(token).NotTo(Equal(""))
 			}),
@@ -65,13 +70,13 @@ var _ = Describe("the auth module", func() {
 				Path:     "/token",
 				RawQuery: "scope=repository%3Acontainrrr%2Fwatchtower%3Apull&service=ghcr.io",
 			}
-			res, err := GetAuthURL(input, "containrrr/watchtower")
+			res, err := auth.GetAuthURL(input, "containrrr/watchtower")
 			Expect(err).NotTo(HaveOccurred())
 			Expect(res).To(Equal(expected))
 		})
 		It("should create a valid auth url object based on the challenge header supplied", func() {
 			input := `bearer realm="https://ghcr.io/token"`
-			res, err := GetAuthURL(input, "containrrr/watchtower")
+			res, err := auth.GetAuthURL(input, "containrrr/watchtower")
 			Expect(err).To(HaveOccurred())
 			Expect(res).To(BeNil())
 		})
@@ -79,16 +84,16 @@ var _ = Describe("the auth module", func() {
 	When("getting a challenge url", func() {
 		It("should create a valid challenge url object based on the image ref supplied", func() {
 			expected := url.URL{Host: "ghcr.io", Scheme: "https", Path: "/v2/"}
-			Expect(GetChallengeURL("ghcr.io/containrrr/watchtower:latest")).To(Equal(expected))
+			Expect(auth.GetChallengeURL("ghcr.io/containrrr/watchtower:latest")).To(Equal(expected))
 		})
 		It("should assume dockerhub if the image ref is not fully qualified", func() {
 			expected := url.URL{Host: "index.docker.io", Scheme: "https", Path: "/v2/"}
-			Expect(GetChallengeURL("containrrr/watchtower:latest")).To(Equal(expected))
+			Expect(auth.GetChallengeURL("containrrr/watchtower:latest")).To(Equal(expected))
 		})
 		It("should convert legacy dockerhub hostnames to index.docker.io", func() {
 			expected := url.URL{Host: "index.docker.io", Scheme: "https", Path: "/v2/"}
-			Expect(GetChallengeURL("docker.io/containrrr/watchtower:latest")).To(Equal(expected))
-			Expect(GetChallengeURL("registry-1.docker.io/containrrr/watchtower:latest")).To(Equal(expected))
+			Expect(auth.GetChallengeURL("docker.io/containrrr/watchtower:latest")).To(Equal(expected))
+			Expect(auth.GetChallengeURL("registry-1.docker.io/containrrr/watchtower:latest")).To(Equal(expected))
 		})
 	})
 })

pkg/registry/digest/digest.go

@@ -2,13 +2,14 @@ package digest
 
 import (
 	"context"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/containrrr/watchtower/pkg/logger"
 	"github.com/containrrr/watchtower/pkg/registry/auth"
 	"github.com/containrrr/watchtower/pkg/registry/manifest"
 	"github.com/containrrr/watchtower/pkg/types"
-	apiTypes "github.com/docker/docker/api/types"
 	"github.com/sirupsen/logrus"
 	"net/http"
 	"strings"
@@ -18,34 +19,31 @@ import (
 const ContentDigestHeader = "Docker-Content-Digest"
 
 // CompareDigest ...
-func CompareDigest(ctx context.Context, image apiTypes.ImageInspect, credentials *types.RegistryCredentials) (bool, error) {
+func CompareDigest(ctx context.Context, container types.Container, registryAuth string) (bool, error) {
 	var digest string
-	token, err := auth.GetToken(ctx, image, credentials)
+
+	registryAuth = TransformAuth(registryAuth)
+	token, err := auth.GetToken(ctx, container, registryAuth)
 	if err != nil {
 		return false, err
 	}
 
-	digestURL, err := manifest.BuildManifestURL(image)
+	digestURL, err := manifest.BuildManifestURL(container)
 	if err != nil {
 		return false, err
 	}
 
-	if digest, err = GetDigest(ctx, digestURL, token); err != nil {
+	if digest, err = GetDigest(digestURL, token); err != nil {
 		return false, err
 	}
 
 	logrus.WithField("remote", digest).Debug("Found a remote digest to compare with")
 
-	if image.ID == digest {
-		return true, nil
-	}
-
-	for _, dig := range image.RepoDigests {
+	for _, dig := range container.ImageInfo().RepoDigests {
 		localDigest := strings.Split(dig, "@")[1]
-		logrus.WithFields(logrus.Fields{
-			"local":  localDigest,
-			"remote": digest,
-		}).Debug("Comparing")
+		fields := logrus.Fields{"local": localDigest, "remote": digest}
+		logrus.WithFields(fields).Debug("Comparing")
+
 		if localDigest == digest {
 			logrus.Debug("Found a match")
 			return true, nil
@@ -55,18 +53,36 @@ func CompareDigest(ctx context.Context, image apiTypes.ImageInspect, credentials
 	return false, nil
 }
 
+// TransformAuth from a base64 encoded json object to base64 encoded string
+func TransformAuth(registryAuth string) string {
+	b, _ := base64.StdEncoding.DecodeString(registryAuth)
+	credentials := &types.RegistryCredentials{}
+	_ = json.Unmarshal(b, credentials)
+
+	if credentials.Username != "" && credentials.Password != "" {
+		ba := []byte(fmt.Sprintf("%s:%s", credentials.Username, credentials.Password))
+		registryAuth = base64.StdEncoding.EncodeToString(ba)
+	}
+
+	return registryAuth
+}
+
 // GetDigest from registry using a HEAD request to prevent rate limiting
-func GetDigest(ctx context.Context, url string, token string) (string, error) {
-	client := &http.Client{}
-	log := logger.GetLogger(ctx).WithField("fun", "GetDigest")
+func GetDigest(url string, token string) (string, error) {
+	tr := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+	}
+	client := &http.Client{Transport: tr}
+
 	if token != "" {
-		log.WithField("token", token).Debug("Setting request bearer token")
+		logrus.WithField("token", token).Trace("Setting request token")
 	} else {
 		return "", errors.New("could not fetch token")
 	}
 
 	req, _ := http.NewRequest("HEAD", url, nil)
-	req.Header.Add("Authorization", "Bearer "+token)
+	req.Header.Add("Authorization", token)
+	req.Header.Add("Accept", "application/vnd.docker.distribution.manifest.v2+json")
 	req.Header.Add("Accept", "*/*")
 
 	logrus.WithField("url", url).Debug("Doing a HEAD request to fetch a digest")

pkg/registry/digest/digest_test.go

@@ -1,15 +1,16 @@
-package digest
+package digest_test
 
 import (
 	"context"
 	"fmt"
-	"github.com/containrrr/watchtower/pkg/logger"
+	"github.com/containrrr/watchtower/internal/actions/mocks"
+	"github.com/containrrr/watchtower/pkg/registry/digest"
 	wtTypes "github.com/containrrr/watchtower/pkg/types"
-	"github.com/docker/docker/api/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 	"os"
 	"testing"
+	"time"
 )
 
 func TestDigest(t *testing.T) {
@@ -18,16 +19,6 @@ func TestDigest(t *testing.T) {
 	RunSpecs(GinkgoT(), "Digest Suite")
 }
 
-var ghImage = types.ImageInspect{
-	ID: "sha256:6972c414f322dfa40324df3c503d4b217ccdec6d576e408ed10437f508f4181b",
-	RepoTags: []string{
-		"ghcr.io/k6io/operator:latest",
-	},
-	RepoDigests: []string{
-		"ghcr.io/k6io/operator@sha256:d68e1e532088964195ad3a0a71526bc2f11a78de0def85629beb75e2265f0547",
-	},
-}
-
 var DockerHubCredentials = &wtTypes.RegistryCredentials{
 	Username: os.Getenv("CI_INTEGRATION_TEST_REGISTRY_DH_USERNAME"),
 	Password: os.Getenv("CI_INTEGRATION_TEST_REGISTRY_DH_PASSWORD"),
@@ -52,12 +43,24 @@ func SkipIfCredentialsEmpty(credentials *wtTypes.RegistryCredentials, fn func())
 }
 
 var _ = Describe("Digests", func() {
-	var ctx = logger.AddDebugLogger(context.Background())
+	mockId := "mock-id"
+	mockName := "mock-container"
+	mockImage := "ghcr.io/k6io/operator:latest"
+	mockCreated := time.Now()
+	mockDigest := "ghcr.io/k6io/operator@sha256:d68e1e532088964195ad3a0a71526bc2f11a78de0def85629beb75e2265f0547"
+
+	mockContainer := mocks.CreateMockContainerWithDigest(
+		mockId,
+		mockName,
+		mockImage,
+		mockCreated,
+		mockDigest)
 
 	When("a digest comparison is done", func() {
 		It("should return true if digests match",
 			SkipIfCredentialsEmpty(GHCRCredentials, func() {
-				matches, err := CompareDigest(ctx, ghImage, GHCRCredentials)
+				creds := fmt.Sprintf("%s:%s", GHCRCredentials.Username, GHCRCredentials.Password)
+				matches, err := digest.CompareDigest(context.Background(), mockContainer, creds)
 				Expect(err).NotTo(HaveOccurred())
 				Expect(matches).To(Equal(true))
 			}),

pkg/registry/manifest/manifest.go

@@ -3,21 +3,31 @@ package manifest
 import (
 	"fmt"
 	"github.com/containrrr/watchtower/pkg/registry/helpers"
+	"github.com/containrrr/watchtower/pkg/types"
 	ref "github.com/docker/distribution/reference"
-	apiTypes "github.com/docker/docker/api/types"
+	"github.com/sirupsen/logrus"
 	url2 "net/url"
 	"strings"
 )
 
 // BuildManifestURL from raw image data
-func BuildManifestURL(image apiTypes.ImageInspect) (string, error) {
-	img, tag := extractImageAndTag(image)
-	hostName, err := ref.ParseNormalizedNamed(img)
+func BuildManifestURL(container types.Container) (string, error) {
+
+	normalizedName, err := ref.ParseNormalizedNamed(container.ImageName())
 	if err != nil {
 		return "", err
 	}
 
-	host, err := helpers.NormalizeRegistry(hostName.Name())
+	host, err := helpers.NormalizeRegistry(normalizedName.String())
+	img, tag := extractImageAndTag(strings.TrimPrefix(container.ImageName(), host+"/"))
+
+	logrus.WithFields(logrus.Fields{
+		"image":      img,
+		"tag":        tag,
+		"normalized": normalizedName,
+		"host":       host,
+	}).Debug("Parsing image ref")
+
 	if err != nil {
 		return "", err
 	}
@@ -33,15 +43,21 @@ func BuildManifestURL(image apiTypes.ImageInspect) (string, error) {
 	return url.String(), nil
 }
 
-func extractImageAndTag(image apiTypes.ImageInspect) (string, string) {
+func extractImageAndTag(imageName string) (string, string) {
 	var img string
 	var tag string
-	if strings.Contains(image.RepoTags[0], ":") {
-		parts := strings.Split(image.RepoTags[0], ":")
-		img = parts[0]
-		tag = parts[1]
+
+	if strings.Contains(imageName, ":") {
+		parts := strings.Split(imageName, ":")
+		if len(parts) > 2 {
+			img = fmt.Sprintf("%s%s", parts[0], parts[1])
+			tag = parts[3]
+		} else {
+			img = parts[0]
+			tag = parts[1]
+		}
 	} else {
-		img = image.RepoTags[0]
+		img = imageName
 		tag = "latest"
 	}
 	return img, tag

pkg/registry/manifest/manifest_test.go

@@ -1,11 +1,13 @@
 package manifest_test
 
 import (
+	"github.com/containrrr/watchtower/internal/actions/mocks"
 	"github.com/containrrr/watchtower/pkg/registry/manifest"
 	apiTypes "github.com/docker/docker/api/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 	"testing"
+	"time"
 )
 
 func TestManifest(t *testing.T) {
@@ -14,17 +16,20 @@ func TestManifest(t *testing.T) {
 }
 
 var _ = Describe("the manifest module", func() {
+	mockId := "mock-id"
+	mockName := "mock-container"
+	mockCreated := time.Now()
 
 	When("building a manifest url", func() {
 		It("should return a valid url given a fully qualified image", func() {
 			expected := "https://ghcr.io/v2/containrrr/watchtower/manifests/latest"
 			imageInfo := apiTypes.ImageInspect{
 				RepoTags: []string{
-					"ghcr.io/containrrr/watchtower:latest",
+					"ghcr.io/k6io/operator:latest",
 				},
 			}
-
-			res, err := manifest.BuildManifestURL(imageInfo)
+			mock := mocks.CreateMockContainerWithImageInfo(mockId, mockName, "ghcr.io/containrrr/watchtower:latest", mockCreated, imageInfo)
+			res, err := manifest.BuildManifestURL(mock)
 			Expect(err).NotTo(HaveOccurred())
 			Expect(res).To(Equal(expected))
 		})
@@ -36,19 +41,23 @@ var _ = Describe("the manifest module", func() {
 				},
 			}
 
-			res, err := manifest.BuildManifestURL(imageInfo)
+			mock := mocks.CreateMockContainerWithImageInfo(mockId, mockName, "containrrr/watchtower:latest", mockCreated, imageInfo)
+			res, err := manifest.BuildManifestURL(mock)
 			Expect(err).NotTo(HaveOccurred())
 			Expect(res).To(Equal(expected))
 		})
 		It("should assume latest for images that lack an explicit tag", func() {
 			expected := "https://index.docker.io/v2/containrrr/watchtower/manifests/latest"
 			imageInfo := apiTypes.ImageInspect{
+
 				RepoTags: []string{
 					"containrrr/watchtower",
 				},
 			}
 
-			res, err := manifest.BuildManifestURL(imageInfo)
+			mock := mocks.CreateMockContainerWithImageInfo(mockId, mockName, "containrrr/watchtower", mockCreated, imageInfo)
+
+			res, err := manifest.BuildManifestURL(mock)
 			Expect(err).NotTo(HaveOccurred())
 			Expect(res).To(Equal(expected))
 		})

pkg/registry/trust.go

@@ -66,7 +66,7 @@ func EncodedConfigAuth(ref string) (string, error) {
 	auth, _ := credStore.Get(server) // returns (types.AuthConfig{}) if server not in credStore
 
 	if auth == (types.AuthConfig{}) {
-		log.Debugf("No credentials for %s in %s", server, configFile.Filename)
+		log.WithField("config_file", configFile.Filename).Debugf("No credentials for %s found", server)
 		return "", nil
 	}
 	log.Debugf("Loaded auth credentials for user %s, on registry %s, from file %s", auth.Username, ref, configFile.Filename)

pkg/types/container.go

@@ -0,0 +1,26 @@
+package types
+
+import "github.com/docker/docker/api/types"
+
+// Container is a docker container running an image
+type Container interface {
+	ContainerInfo() *types.ContainerJSON
+	ID() string
+	IsRunning() bool
+	Name() string
+	ImageID() string
+	ImageName() string
+	Enabled() (bool, bool)
+	IsMonitorOnly() bool
+	Scope() (string, bool)
+	Links() []string
+	ToRestart() bool
+	IsWatchtower() bool
+	StopSignal() string
+	HasImageInfo() bool
+	ImageInfo() *types.ImageInspect
+	GetLifecyclePreCheckCommand() string
+	GetLifecyclePostCheckCommand() string
+	GetLifecyclePreUpdateCommand() string
+	GetLifecyclePostUpdateCommand() string
+}