ci: [torrust#634] E2E test runner: build config file for the tracker_checker

Author: josecelano

src/e2e/runner.rs

@@ -1,4 +1,6 @@
 use std::env;
+use std::fs::File;
+use std::io::Write;
 use std::time::Duration;
 
 use log::{debug, LevelFilter};
@@ -26,7 +28,7 @@ pub fn run() {
     - [x] Run the docker image.
     - [x] Wait until the container is healthy.
     - [x] Parse logs to get running services.
-    - [ ] Build config file for the tracker_checker.
+    - [x] Build config file for the tracker_checker.
     - [ ] Run the tracker_checker.
     - [x] Stop the container.
 
@@ -42,7 +44,7 @@ pub fn run() {
 
     let container_tag = "torrust-tracker:local";
 
-    Docker::build("./Containerfile", container_tag).expect("A tracker local docker image should be built");
+    //Docker::build("./Containerfile", container_tag).expect("A tracker local docker image should be built");
 
     println!(
         "Current dir: {:?}",
@@ -83,9 +85,16 @@ pub fn run() {
     let mut config = RunningServices::default();
     config.extract_from_logs(&logs);
 
-    let json = serde_json::to_string_pretty(&config).unwrap();
+    let json = serde_json::to_string_pretty(&config).expect("Running services should be serialized into JSON");
     println!("Tracker checker configuration: {json}");
 
+    let tracker_checker_config_path = "./tracker_checker.json";
+
+    let mut file = File::create(tracker_checker_config_path).expect("Tracker checker config file to be created");
+    file.write_all(json.as_bytes())
+        .expect("Tracker checker config file to be written");
+    println!("Tracker checker configuration file: {tracker_checker_config_path} \n{json}");
+
     println!("Stopping docker tracker image: {container_name} ...");
     Docker::stop(&container_name).expect("A tracker local docker image should be stopped");