diff --git a/server/podman/src/lib.rs b/server/podman/src/lib.rs
index 03e11ea..d0b73d6 100644
--- a/server/podman/src/lib.rs
+++ b/server/podman/src/lib.rs
@@ -9,7 +9,6 @@ extern crate serde_json;
 use nixideserver_lib::*;
 use rocket::http::Status;
 use std::fs;
-use std::hash::Hash;
 use std::io::prelude::*;
 use std::path::{
     Path,
@@ -18,14 +17,44 @@ use std::path::{
 
 // podman create --name test -p 3000:3000 -v $PWD:/nixide -w /nixide docker.io/nixos/nix nix-shell --pure start-ide.nix --run run_ide.sh
 
+#[derive(Serialize, Deserialize, Clone)]
+pub enum PodmanState {
+    Unkown,
+    FetchingSource,
+    StartingContainer,
+    RunningContainer,
+    StoppingContainer,
+    StoppedContainer,
+    DeletingContainer,
+    DeletingSources,
+}
+#[derive(Serialize, Deserialize, Clone)]
+pub struct PodmanContainer{
+    state : PodmanState,
+    ide_param : NixIdeServerParam
+}
+
+#[derive(Serialize, Deserialize, Clone)]
+pub struct PodmanContainerList{
+    container : Vec<PodmanContainer>
+}
+
 pub struct PodmanEngine {
     working_folder: PathBuf,
+    list : PodmanContainerList
 }
 
 impl PodmanEngine {
     pub fn new(working_folder: PathBuf) -> Self {
+        let list_path = format!("{}/.podman_containers", &working_folder.display());
+        let list =  match read_from_list_file(&list_path)  {
+                Ok(p) => p,
+                _ => PodmanContainerList{container: Vec::new()}
+            };
+
         Self {
             working_folder,
+            list
         }
     }
 }
@@ -78,7 +107,7 @@ impl NixIdeManageServiceEngine for PodmanEngine {
     }
 }
 
-#[derive(Serialize, Deserialize, Hash)]
+#[derive(Serialize, Deserialize, Clone)]
 pub struct NixIdeServerParam {
     #[serde(default = "default_listen_address")]
     listen_address: String,
@@ -130,4 +159,12 @@ fn read_ide_state(json_string :&str) -> Result<IdeState,serde_json::Error>
 {
     let status: PodmanIdeStatus = serde_json::from_str(json_string)?;
     Ok(status.ide_state)
+}
+
+fn read_from_list_file(path : &str) -> Result<PodmanContainerList, std::io::Error> {
+    match fs::read_to_string(path)
+    {
+        Ok(json_string) => serde_json::from_str::<PodmanContainerList>(&json_string).map_err(|_| std::io::Error::from(std::io::ErrorKind::InvalidData)),
+        Err(e) => Err(e)
+    }
 }
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