diff --git a/README.md b/README.md
index 4f14485..390a774 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,15 @@
 # dockerbuild
 
-Docker build tool, build software using docker
\ No newline at end of file
+Docker build tool, build software using docker
+
+
+Config file:
+* `~/.dockerbuild.json`
+* `/etc/dockerbuild.json`
+
+```json
+echo '{
+    "image": "rust:1.47",
+    "mirror": "git://mirrors.ustc.edu.cn/crates.io-index"
+}' > ~/.dockerbuild.json
+```
diff --git a/src/build_util.rs b/src/build_util.rs
index 9a54d26..8c9c034 100644
--- a/src/build_util.rs
+++ b/src/build_util.rs
@@ -4,9 +4,9 @@ use rust_util::XResult;
 
 pub enum Builder {
     Cargo,
-    Maven,
-    Gradle,
-    Buildj,
+    // Maven,
+    // Gradle,
+    // Buildj,
     Unknown,
 }
 
@@ -18,9 +18,9 @@ impl Builder {
     pub fn get_name(&self) -> Option<String> {
         match self {
             Builder::Cargo => Some("cargo".into()),
-            Builder::Maven => Some("mvn".into()),
-            Builder::Gradle => Some("gradle".into()),
-            Builder::Buildj => Some("buildj".into()),
+            // Builder::Maven => Some("mvn".into()),
+            // Builder::Gradle => Some("gradle".into()),
+            // Builder::Buildj => Some("buildj".into()),
             Builder::Unknown => None,
         }
     }
@@ -39,15 +39,15 @@ fn inner_get_builder(opt_current_dir: &Option<String>) -> XResult<Builder> {
     if check_files_exists("Cargo.toml") {
         return Ok(Builder::Cargo);
     }
-    if check_files_exists("pom.xml") {
-        return Ok(Builder::Maven);
-    }
-    if check_files_exists("build.gradle") {
-        return Ok(Builder::Gradle);
-    }
-    if check_files_exists("build.json") {
-        return Ok(Builder::Buildj);
-    }
+    // if check_files_exists("pom.xml") {
+    //     return Ok(Builder::Maven);
+    // }
+    // if check_files_exists("build.gradle") {
+    //     return Ok(Builder::Gradle);
+    // }
+    // if check_files_exists("build.json") {
+    //     return Ok(Builder::Buildj);
+    // }
 
     Ok(Builder::Unknown)
 }
diff --git a/src/config.rs b/src/config.rs
index 7c04ee7..2d83355 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,6 +1,31 @@
+use std::fs;
+use std::path::PathBuf;
 use serde::{Serialize, Deserialize};
+use rust_util::util_file;
 
 #[derive(Serialize, Deserialize)]
 pub struct DockerBuildConfig {
-    image: Option<String>,
+    pub image: Option<String>,
+    pub mirror: Option<String>,
+}
+
+pub fn load_docker_build_config() -> Option<DockerBuildConfig> {
+    let config = find_docker_build_config_file()?;
+    success!("Find config file: {:?}", config);
+    let config_content = fs::read_to_string(&config).map_err(|e| {
+        failure!("Read config file: {:?}, failed: {}", config, e);
+        e
+    }).ok()?;
+    serde_json::from_str(&config_content).map_err(|e| {
+        failure!("Parse config file: {:?}, failed: {}", config, e);
+        e
+    }).ok()
+}
+
+fn find_docker_build_config_file() -> Option<PathBuf> {
+    util_file::read_config(None, &vec![
+        // "dockerbuild.json".into(),
+        "~/.dockerbuild.json".into(),
+        "/etc/dockerbuild.json".into(),
+    ])
 }
\ No newline at end of file
diff --git a/src/docker_util.rs b/src/docker_util.rs
index 92a3b79..a0c7d85 100644
--- a/src/docker_util.rs
+++ b/src/docker_util.rs
@@ -24,6 +24,7 @@ pub struct DockerCmd {
 
 impl DockerCmd {
     pub fn new(docker_name: &str) -> Self {
+        success!("Docker image: {}", docker_name);
         Self {
             docker_name: docker_name.into(),
             ..Default::default()
@@ -128,7 +129,7 @@ fn escape_arg(arg: &str) -> String {
     let mut r = String::with_capacity(arg.len() + 10);
     r.push('\'');
     for c in arg.chars() {
-        if c == '\'' {
+        if c == '\'' || c == '\\' {
             r.push('\\');
         }
         r.push(c);
diff --git a/src/main.rs b/src/main.rs
index 75cc24d..f892d3c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,32 +11,38 @@ use std::path::{Path, PathBuf};
 use rust_util::util_file;
 pub use docker_util::DockerCmd;
 
-const MIRROR_USTC: &str = "git://mirrors.ustc.edu.cn/crates.io-index";
-
 fn main() {
     information!("dockerbuild v0.1");
 
-    let docker_image = "rust:1.47";
+    let docker_build_config = config::load_docker_build_config().expect("Read config failed, not found or parse error!");
+    let docker_image = &docker_build_config.image.expect("Image is not configed in config file!");
 
     let docker_registry_path_buf =get_resolved_docker_registry(docker_image).expect("Cannot find $HOME !");
     let docker_registry = docker_registry_path_buf.to_str().expect("Cannot find $HOME !!");
 
-    let p = Path::new(&docker_registry);
-    if !p.exists() {
-        if let Err(e) = fs::create_dir_all(&docker_registry) {
-            failure!("Create dir failed: {:?}, error: {}", p, e);
-            return;
-        }
-    }
+    check_docker_registry_exists(&docker_registry).expect("Check docker registry exists failed!");
 
     let args_iter = env::args().skip(1);
     let args = args_iter.map(|a| a.to_owned()).collect::<Vec<_>>();
     let mut docker_cmd = DockerCmd::new(docker_image);
-    docker_cmd.add_volumn(docker_registry, "/usr/local/cargo/registry")
-              .mirror(MIRROR_USTC);
+    docker_cmd.add_volumn(docker_registry, "/usr/local/cargo/registry");
+    if let Some(mirror) = &docker_build_config.mirror {
+        docker_cmd.mirror(mirror);
+    }
     docker_cmd.exec(&args).unwrap();
 }
 
+fn check_docker_registry_exists(docker_registry: &str) -> Option<()> {
+    let p = Path::new(docker_registry);
+    if !p.exists() {
+        if let Err(e) = fs::create_dir_all(&docker_registry) {
+            failure!("Create dir failed: {:?}, error: {}", p, e);
+            return None;
+        }
+    }
+    Some(())
+}
+
 fn get_resolved_docker_registry(image: &str) -> Option<PathBuf> {
     util_file::get_absolute_path(&get_docker_registry(image))
 }