manager loop WIP, add nix flake

src/minecraft/manager_loop.rs

@@ -0,0 +1,55 @@
+use bollard::{Docker, query_parameters::{ListContainersOptionsBuilder, StopContainerOptionsBuilder}};
+
+use crate::{ DbPool, dockermgr, models, schema, status::ServerStatus };
+
+use async_std::task;
+
+use std::{collections::HashMap, time::Duration};
+
+use diesel::prelude::*;
+
+
+async fn server_init(pool: &DbPool, docker: &Docker) -> Result<(), String> {
+    use schema::servers::dsl::*;
+    let conn = &mut pool.get().unwrap();
+
+    println!("init start");
+
+    let _ = diesel::update(servers).filter(simple_redirect.eq(false)).set(status.eq(ServerStatus::Stopped)).execute(conn);
+
+    let mut filters = HashMap::new();
+    filters.insert("name", vec!["minecraft-"]);
+    let container_list_options = ListContainersOptionsBuilder::new()
+        .all(true)
+        .filters(&filters)
+        .build();
+    let containers = docker.list_containers(Some(container_list_options)).await.map_err(|e| format!("Failed get current containers : {}", e))?;
+
+    if containers.len() != 0 {
+        println!("stopping {} stray container(s)", containers.len())
+    }
+
+    for container in containers {
+        let container_name = &container.names.unwrap()[0][1..];
+        println!("stopping {}", container_name);
+        let stop_options = StopContainerOptionsBuilder::new()
+            .t(60)
+            .build();
+        docker.stop_container(container_name, Some(stop_options)).await.map_err(|e| format!("Failed to stop container {}, : {}", container_name, e))?;
+        println!("{} stopped", container_name);
+    }
+    println!("init done");
+    Ok(())
+}
+
+pub async fn server_manager_loop(pool: DbPool, docker: Docker)
+{
+    match server_init(&pool, &docker).await {
+        Err(e) => { eprintln!("init failed , ignoring because idgaf : {}", e); },
+        Ok(_) => {},
+    };
+
+    loop {
+        task::sleep(Duration::from_mins(5)).await;
+    }
+}