Clean docker containers on sigINT

container-pool.js

@@ -49,6 +49,11 @@ class Container {
   close() {
     spawn("docker", ["rm", "-f", this.id]);
   }
+
+  closeSync() {
+    spawnSync("docker", ["rm", "-f", this.id]);
+    console.log("doker rm done", this.id);
+  }
 }
 
 module.exports = new (class ContainerPool {
@@ -58,6 +63,11 @@ module.exports = new (class ContainerPool {
     for (let i = 1; i <= this.concurrency; i++) {
       this.generateContainer();
     }
+
+    process.on("SIGINT", () => {
+      console.log("SIGINT");
+      this.clear();
+    });
   }
 
   generateContainer() {
@@ -72,4 +82,13 @@ module.exports = new (class ContainerPool {
     this.generateContainer();
     return container;
   }
+
+  clear() {
+    console.log("Removing all containers from the pool");
+    for (const container of this.pool) {
+      container.closeSync();
+    }
+    console.log("Removing containers done");
+    process.exit(0);
+  }
 })(concurrency);