export interface ScopedDockerConfigOptions {
    projectDir: string;
    host: string;
    username: string;
    password: string;
}
/**
 * Write a scoped Docker config.json with registry auth for a single host.
 */
export declare function materializeScopedDockerConfig(options: ScopedDockerConfigOptions): void;
/**
 * Remove the scoped Docker config directory.
 */
export declare function cleanupScopedDockerConfig(projectDir: string): void;
/**
 * Return the path to the scoped Docker config directory (for DOCKER_CONFIG env).
 */
export declare function getScopedDockerConfigPath(projectDir: string): string;
/**
 * Extract the registry host from a Docker image reference.
 * Returns undefined for Docker Hub images (no host prefix).
 */
export declare function extractImageHost(image: string): string | undefined;
//# sourceMappingURL=docker-config.d.ts.map