public static Map<String, ImageArchiveManifestEntry> findEntriesByRepoTagPattern(String repoTagPattern, ImageArchiveManifest manifest) throws PatternSyntaxException {
        return findEntriesByRepoTagPattern(repoTagPattern == null ? null : Pattern.compile(repoTagPattern), manifest);
    }
Search the manifest for an entry that has a repository and tag matching the provided pattern.

@param repoTagPattern the repository and tag to search (e.g. busybox:latest).
@param manifest the manifest to be searched
@return a pair containing the matched tag and the entry found, or null if no match.
src/main/java/io/fabric8/maven/docker/util/ImageArchiveUtil.java