docker-java · LarryNorth · May 17, 2025 · May 17, 2025 · May 19, 2025
@@ -85,7 +85,7 @@ public Iterable<DockerfileStatement> getStatements() throws IOException {
 
     public List<String> getIgnores() throws IOException {
         List<String> ignores = new ArrayList<>();
-        File dockerIgnoreFile = new File(baseDirectory, ".dockerignore");
+        File dockerIgnoreFile = getDockerIgnoreFile();
         if (dockerIgnoreFile.exists()) {
             int lineNumber = 0;
             List<String> dockerIgnoreFileContent = FileUtils.readLines(dockerIgnoreFile);
@@ -107,6 +107,17 @@ public List<String> getIgnores() throws IOException {
         return ignores;
     }
 
+    private File getDockerIgnoreFile() {
+        // See https://docs.docker.com/build/concepts/context/#filename-and-location
+        String dockerFileName = dockerFile.getName();
+        File dockerFileSpecificIgnoreFile = new File(baseDirectory, dockerFileName + ".dockerignore");
+        if (dockerFileSpecificIgnoreFile.exists()) {
+            return dockerFileSpecificIgnoreFile;
+        } else {
+            return new File(baseDirectory, ".dockerignore");
+        }
+    }
+
     public ScannedResult parse() throws IOException {
         return new ScannedResult();
     }

@@ -57,6 +57,46 @@ public void ineffectiveIgnorePattern() throws Exception {
         assertThat(filesToAdd, containsInAnyOrder("Dockerfile", ".dockerignore", "README.md", "README-secret.md"));
     }
 
+    @Test
+    public void specificDockerFileWithoutDockerFileSpecificIgnore() throws IOException {
+        File baseDir = fileFromBuildTestResource("dockerignore/specificDockerFileWithoutDockerFileSpecificIgnore");
+        Dockerfile dockerfile = new Dockerfile(new File(baseDir, "specific.Dockerfile"), baseDir);
+        Dockerfile.ScannedResult result = dockerfile.parse();
+        Collection<String> filesToAdd = transform(result.filesToAdd, TO_FILE_NAMES);
+
+        assertThat(filesToAdd, containsInAnyOrder("specific.Dockerfile", ".dockerignore", "README.md"));
+    }
+
+    @Test
+    public void defaultDockerFileWithDefaultIgnore() throws IOException {
+        File baseDir = fileFromBuildTestResource("dockerignore/DefaultDockerFileWithDefaultIgnore");
+        Dockerfile dockerfile = new Dockerfile(new File(baseDir, "Dockerfile"), baseDir);
+        Dockerfile.ScannedResult result = dockerfile.parse();
+        Collection<String> filesToAdd = transform(result.filesToAdd, TO_FILE_NAMES);
+
+        assertThat(filesToAdd, containsInAnyOrder("Dockerfile", ".dockerignore", "README.md"));
+    }
+
+    @Test
+    public void defaultDockerFileWithDockerFileSpecificIgnore() throws IOException {
+        File baseDir = fileFromBuildTestResource("dockerignore/DefaultDockerFileWithDockerFileSpecificIgnore");
+        Dockerfile dockerfile = new Dockerfile(new File(baseDir, "Dockerfile"), baseDir);
+        Dockerfile.ScannedResult result = dockerfile.parse();
+        Collection<String> filesToAdd = transform(result.filesToAdd, TO_FILE_NAMES);
+
+        assertThat(filesToAdd, containsInAnyOrder("Dockerfile", "Dockerfile.dockerignore", "README.md"));
+    }
+
+    @Test
+    public void dockerFileSpecificIgnoreOverridesDockerIgnore() throws IOException {
+        File baseDir = fileFromBuildTestResource("dockerignore/DockerFileSpecificIgnoreOverridesDockerIgnore");
+        Dockerfile dockerfile = new Dockerfile(new File(baseDir, "special.Dockerfile"), baseDir);
+        Dockerfile.ScannedResult result = dockerfile.parse();
+        Collection<String> filesToAdd = transform(result.filesToAdd, TO_FILE_NAMES);
+
+        assertThat(filesToAdd, containsInAnyOrder("special.Dockerfile", ".dockerignore", "special.Dockerfile.dockerignore", "README.md", "README-not-secret.md"));
+    }
+
     @Test
     public void addFiles() throws IOException {
         File baseDir = fileFromBuildTestResource("ADD/files");

@@ -0,0 +1,3 @@
+*.md
+!README*.md
+README-secret.md
@@ -0,0 +1,3 @@
+FROM busybox:latest
+
+CMD ["echo", "Success"]
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1,3 @@
+FROM busybox:latest
+
+CMD ["echo", "Success"]
@@ -0,0 +1,3 @@
+*.md
+!README*.md
+README-secret.md
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1,4 @@
+*.md
+!README*.md
+README-not-secret.md
+README-secret.md
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1,3 @@
+FROM busybox:latest
+
+CMD ["echo", "Success"]
@@ -0,0 +1,4 @@
+*.md
+!README*.md
+README-secret.md
+README-special-secret.md
@@ -0,0 +1,3 @@
+*.md
+!README*.md
+README-secret.md
@@ -0,0 +1 @@
+No markdown files are included in the context except README files other than README-secret.md.
@@ -0,0 +1,3 @@
+FROM busybox:latest
+
+CMD ["echo", "Success"]
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		No markdown files are included in the context except README files other than README-secret.md.