Yuri Schimke <******@****.***> 1734771389 +0200

Yuri Schimke <******@****.***> 1735306796 +0200

            return true;
        }

        return switch (mimeType) {
        case "image/png", "image/gif", "image/jpeg", "image/bmp" -> true;
        default -> false;
        };
    }

    /**
     * Processes and saves an image from the input stream to the output file as a thumbnail.
     *
     * <p>This method reads image data, validates dimensions, applies subsampling and scaling

app = FastAPI()


class PNGStreamingResponse(StreamingResponse):
    media_type = "image/png"


@app.get("/image/stream", response_class=PNGStreamingResponse)
async def stream_image() -> AsyncIterable[bytes]:
    with read_image() as image_file:
        for chunk in image_file:
            yield chunk


@app.get("/image/stream-no-async", response_class=PNGStreamingResponse)
def stream_image_no_async() -> Iterable[bytes]:

    // Base image with extras for Cloud
    CLOUD("centos:8", "-cloud"),

    // Based on CLOUD above, with more extras. We don't set a base image because
    // we programmatically extend from the Cloud image.
    CLOUD_ESS(null, "-cloud-ess");

    private final String image;
    private final String suffix;

    DockerBase(String image, String suffix) {
        this.image = image;

            "name": "Foo",
            "price": 35.4,
            "image": {"url": "http://example.com/image.png"},
        },
    )
    assert response.status_code == 422, response.text
    assert response.json() == {
        "detail": [
            {
                "loc": ["body", "image", "name"],
                "input": {"url": "http://example.com/image.png"},
                "msg": "Field required",

drawing/x-dwf                  dwf              # AutoCAD
image/gif                      gif              # GIF image file
image/ief                      ief              # Image Exchange
image/jpeg                     jpeg jpg jpe     # JPG image file
image/png                      png              # Portable Network Graphics
image/tiff                     tiff tif         # TIFF image file
image/x-cmu-raster             ras              #

## What is a Container Image { #what-is-a-container-image }

A **container** is run from a **container image**.

A container image is a **static** version of all the files, environment variables, and the default command/program that should be present in a container. **Static** here means that the container **image** is not running, it's not being executed, it's only the packaged files and metadata.

            "${GENERATE_THUMBNAIL}" "image" "file:${TEST_DIR}/400x400.jpg" "${OUTPUT_DIR}/jpg_thumb.png" "image/jpeg"
    fi

    # Test: GIF thumbnail generation
    if [[ -f "${TEST_DIR}/400x400.gif" ]]; then
        run_file_test "GIF thumbnail" "${OUTPUT_DIR}/gif_thumb.png" \
            "${GENERATE_THUMBNAIL}" "image" "file:${TEST_DIR}/400x400.gif" "${OUTPUT_DIR}/gif_thumb.png" "image/gif"
    fi

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