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-rw-r--r--libpod/image/pull.go15
-rw-r--r--libpod/image/pull_test.go109
-rw-r--r--libpod/image/testdata/docker-name-only.tar.xzbin0 -> 1024 bytes
-rw-r--r--libpod/image/testdata/docker-registry-name.tar.xzbin0 -> 1028 bytes
-rw-r--r--libpod/image/testdata/docker-two-images.tar.xzbin0 -> 1416 bytes
-rw-r--r--libpod/image/testdata/docker-two-names.tar.xzbin0 -> 1040 bytes
-rw-r--r--libpod/image/testdata/docker-unnamed.tar.xzbin0 -> 968 bytes
-rw-r--r--libpod/image/testdata/oci-name-only.tar.gzbin0 -> 975 bytes
-rw-r--r--libpod/image/testdata/oci-non-docker-name.tar.gzbin0 -> 991 bytes
-rw-r--r--libpod/image/testdata/oci-registry-name.tar.gzbin0 -> 979 bytes
-rw-r--r--libpod/image/testdata/oci-unnamed.tar.gzbin0 -> 928 bytes
11 files changed, 121 insertions, 3 deletions
diff --git a/libpod/image/pull.go b/libpod/image/pull.go
index f7131f11e..bbabba7b9 100644
--- a/libpod/image/pull.go
+++ b/libpod/image/pull.go
@@ -84,8 +84,8 @@ func getPullRefName(srcRef types.ImageReference, destName string) (*pullRefName,
}, nil
}
-// returns a list of pullRefPair with the srcRef and DstRef based on the transport being used
-func (ir *Runtime) getPullListFromRef(ctx context.Context, srcRef types.ImageReference, imgName string, sc *types.SystemContext) ([]*pullRefPair, error) {
+// refNamesFromImageReference returns a list of pullRefName for a single ImageReference, depending on the used transport.
+func refNamesFromImageReference(ctx context.Context, srcRef types.ImageReference, imgName string, sc *types.SystemContext) ([]*pullRefName, error) {
var pullNames []*pullRefName
splitArr := strings.Split(imgName, ":")
archFile := splitArr[len(splitArr)-1]
@@ -178,8 +178,17 @@ func (ir *Runtime) getPullListFromRef(ctx context.Context, srcRef types.ImageRef
}
pullNames = append(pullNames, pullInfo)
}
+ return pullNames, nil
+}
+
+// getPullListFromRef returns a list of pullRefPair for a single ImageReference, depending on the used transport.
+func (ir *Runtime) getPullListFromRef(ctx context.Context, srcRef types.ImageReference, imgName string, sc *types.SystemContext) ([]*pullRefPair, error) {
+ refNames, err := refNamesFromImageReference(ctx, srcRef, imgName, sc)
+ if err != nil {
+ return nil, err
+ }
- return ir.pullRefPairsFromRefNames(pullNames)
+ return ir.pullRefPairsFromRefNames(refNames)
}
// pullImage pulls an image from configured registries
diff --git a/libpod/image/pull_test.go b/libpod/image/pull_test.go
index e5e9f6b91..9305527d4 100644
--- a/libpod/image/pull_test.go
+++ b/libpod/image/pull_test.go
@@ -1,6 +1,7 @@
package image
import (
+ "context"
"fmt"
"io/ioutil"
"os"
@@ -78,6 +79,114 @@ func TestGetPullRefName(t *testing.T) {
}
}
+func TestRefNamesFromImageReference(t *testing.T) {
+ type expected struct{ image, dstName string }
+ for _, c := range []struct {
+ srcName string
+ expected []expected
+ }{
+ // == docker-archive:
+ {"docker-archive:/dev/this-does-not-exist", nil}, // Input does not exist.
+ {"docker-archive:/dev/null", nil}, // Input exists but does not contain a manifest.
+ // FIXME: The implementation has extra code for len(manifest) == 0?! That will fail in getImageDigest anyway.
+ { // RepoTags is empty
+ "docker-archive:testdata/docker-unnamed.tar.xz",
+ []expected{{"@ec9293436c2e66da44edb9efb8d41f6b13baf62283ebe846468bc992d76d7951", "@ec9293436c2e66da44edb9efb8d41f6b13baf62283ebe846468bc992d76d7951"}},
+ },
+ { // RepoTags is a [docker.io/library/]name:latest, normalized to the short format.
+ "docker-archive:testdata/docker-name-only.tar.xz",
+ []expected{{"localhost/pretty-empty:latest", "localhost/pretty-empty:latest"}},
+ },
+ { // RepoTags is a registry/name:latest
+ "docker-archive:testdata/docker-registry-name.tar.xz",
+ []expected{{"example.com/empty:latest", "example.com/empty:latest"}},
+ },
+ { // RepoTags has multiple items for a single image
+ "docker-archive:testdata/docker-two-names.tar.xz",
+ []expected{
+ {"localhost/pretty-empty:latest", "localhost/pretty-empty:latest"},
+ {"example.com/empty:latest", "example.com/empty:latest"},
+ },
+ },
+ { // FIXME: Two images in a single archive - only the "first" one (whichever it is) is returned
+ // (and docker-archive: then refuses to read anything when the manifest has more than 1 item)
+ "docker-archive:testdata/docker-two-images.tar.xz",
+ []expected{{"example.com/empty:latest", "example.com/empty:latest"}},
+ // "example.com/empty/but:different" exists but is ignored
+ },
+
+ // == oci-archive:
+ {"oci-archive:/dev/this-does-not-exist", nil}, // Input does not exist.
+ {"oci-archive:/dev/null", nil}, // Input exists but does not contain a manifest.
+ // FIXME: The remaining tests are commented out for now, because oci-archive: does not work unprivileged.
+ // { // No name annotation
+ // "oci-archive:testdata/oci-unnamed.tar.gz",
+ // []expected{{"@5c8aca8137ac47e84c69ae93ce650ce967917cc001ba7aad5494073fac75b8b6", "@5c8aca8137ac47e84c69ae93ce650ce967917cc001ba7aad5494073fac75b8b6"}},
+ // },
+ // { // Name is a name:latest (no normalization is defined).
+ // "oci-archive:testdata/oci-name-only.tar.gz",
+ // []expected{{"localhost/pretty-empty:latest", "localhost/pretty-empty:latest"}},
+ // },
+ // { // Name is a registry/name:latest
+ // "oci-archive:testdata/oci-registry-name.tar.gz",
+ // []expected{{"example.com/empty:latest", "example.com/empty:latest"}},
+ // },
+ // { // Name exists, but is an invalid Docker reference; such names are passed through, and will fail when intepreting dstName.
+ // "oci-archive:testdata/oci-non-docker-name.tar.gz",
+ // []expected{{"UPPERCASE-IS-INVALID", "UPPERCASE-IS-INVALID"}},
+ // },
+ // Maybe test support of two images in a single archive? It should be transparently handled by adding a reference to srcRef.
+
+ // == dir:
+ { // Absolute path
+ "dir:/dev/this-does-not-exist",
+ []expected{{"localhost/dev/this-does-not-exist", "localhost/dev/this-does-not-exist"}},
+ },
+ { // Relative path, single element.
+ // FIXME? Note the :latest difference in .image. (In .dstName as well, but it has the same semantics in there.)
+ "dir:this-does-not-exist",
+ []expected{{"localhost/this-does-not-exist:latest", "localhost/this-does-not-exist:latest"}},
+ },
+ { // Relative path, multiple elements.
+ // FIXME: This does not add localhost/, and dstName is parsed as docker.io/testdata.
+ "dir:testdata/this-does-not-exist",
+ []expected{{"testdata/this-does-not-exist", "testdata/this-does-not-exist"}},
+ },
+
+ // == Others, notably:
+ // === docker:// (has ImageReference.DockerReference)
+ { // Fully-specified input
+ "docker://docker.io/library/busybox:latest",
+ []expected{{"docker://docker.io/library/busybox:latest", "docker.io/library/busybox:latest"}},
+ },
+ { // Minimal form of the input
+ "docker://busybox",
+ []expected{{"docker://busybox", "docker.io/library/busybox:latest"}},
+ },
+
+ // === tarball: (as an example of what happens when ImageReference.DockerReference is nil).
+ { // FIXME? The dstName value is invalid, and will fail.
+ // (This is NOT an API promise that the results will continue to be this way.)
+ "tarball:/dev/null",
+ []expected{{"tarball:/dev/null", "tarball:/dev/null"}},
+ },
+ } {
+ srcRef, err := alltransports.ParseImageName(c.srcName)
+ require.NoError(t, err, c.srcName)
+
+ res, err := refNamesFromImageReference(context.Background(), srcRef, c.srcName, nil)
+ if len(c.expected) == 0 {
+ assert.Error(t, err, c.srcName)
+ } else {
+ require.NoError(t, err, c.srcName)
+ require.Len(t, res, len(c.expected), c.srcName)
+ for i, e := range c.expected {
+ assert.Equal(t, &pullRefName{image: e.image, srcRef: srcRef, dstName: e.dstName}, res[i], fmt.Sprintf("%s #%d", c.srcName, i))
+ }
+ }
+ }
+}
+
const registriesConfWithSearch = `[registries.search]
registries = ['example.com', 'docker.io']
`
diff --git a/libpod/image/testdata/docker-name-only.tar.xz b/libpod/image/testdata/docker-name-only.tar.xz
new file mode 100644
index 000000000..0cad9f108
--- /dev/null
+++ b/libpod/image/testdata/docker-name-only.tar.xz
Binary files differ
diff --git a/libpod/image/testdata/docker-registry-name.tar.xz b/libpod/image/testdata/docker-registry-name.tar.xz
new file mode 100644
index 000000000..181816c2e
--- /dev/null
+++ b/libpod/image/testdata/docker-registry-name.tar.xz
Binary files differ
diff --git a/libpod/image/testdata/docker-two-images.tar.xz b/libpod/image/testdata/docker-two-images.tar.xz
new file mode 100644
index 000000000..148d8a86b
--- /dev/null
+++ b/libpod/image/testdata/docker-two-images.tar.xz
Binary files differ
diff --git a/libpod/image/testdata/docker-two-names.tar.xz b/libpod/image/testdata/docker-two-names.tar.xz
new file mode 100644
index 000000000..07fbc479c
--- /dev/null
+++ b/libpod/image/testdata/docker-two-names.tar.xz
Binary files differ
diff --git a/libpod/image/testdata/docker-unnamed.tar.xz b/libpod/image/testdata/docker-unnamed.tar.xz
new file mode 100644
index 000000000..ba6ea1bae
--- /dev/null
+++ b/libpod/image/testdata/docker-unnamed.tar.xz
Binary files differ
diff --git a/libpod/image/testdata/oci-name-only.tar.gz b/libpod/image/testdata/oci-name-only.tar.gz
new file mode 100644
index 000000000..57bc07564
--- /dev/null
+++ b/libpod/image/testdata/oci-name-only.tar.gz
Binary files differ
diff --git a/libpod/image/testdata/oci-non-docker-name.tar.gz b/libpod/image/testdata/oci-non-docker-name.tar.gz
new file mode 100644
index 000000000..5ffc0eabd
--- /dev/null
+++ b/libpod/image/testdata/oci-non-docker-name.tar.gz
Binary files differ
diff --git a/libpod/image/testdata/oci-registry-name.tar.gz b/libpod/image/testdata/oci-registry-name.tar.gz
new file mode 100644
index 000000000..e6df87339
--- /dev/null
+++ b/libpod/image/testdata/oci-registry-name.tar.gz
Binary files differ
diff --git a/libpod/image/testdata/oci-unnamed.tar.gz b/libpod/image/testdata/oci-unnamed.tar.gz
new file mode 100644
index 000000000..de445fdf8
--- /dev/null
+++ b/libpod/image/testdata/oci-unnamed.tar.gz
Binary files differ
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-30 21:37:21 +0000