Use Kyron examples from module itself

Author: pawelrutkaq

images/qnx_x86_64/build/init.build

@@ -95,5 +95,7 @@ libslog2.so.1                      # System logging library (slog2_* functions)
 devb-eide                          # Block device driver for IDE/SATA hard drives and SSDs
                                         # Required for mounting QNX6 file systems from disk partitions
 
+# Orchestrator example needed
+[type=link] /data=/tmp_ram 
 
 [+include] ${MAIN_BUILD_FILE_DIR}/system.build   # Include additional system build configurations

showcases/BUILD

@@ -16,8 +16,8 @@ score_pkg_bundle(
     name = "showcases_all",
     bins = ["//showcases/cli" ],
     other_package_files = [
-        "//showcases/standalone:comm_pkg_files", 
-        "//showcases/kyron:kyron_pkg_files", 
+        "//showcases/standalone:comm_pkg_files",
+        "//showcases/standalone:kyron_pkg_files",
         "//showcases/orchestration_persistency:orch_per_pkg_files",
         "//showcases/simple_lifecycle:simple_lifecycle_pkg_files",
     ],

showcases/cli/README.md

@@ -22,17 +22,45 @@ To make this work each example shall deploy configuration file `name.score.json`
             "env": {
                 // env to be used when running
             },
-            "delay": "number" // Optional delay between two consecutive apps 
+            "delay": "number" // Optional delay between two consecutive apps
         },
         {
             // ...
         }
     ]
 
 }
+```
 
 Each example can run multiple executables, providing additional `apps` configs. This will be started one after another but not blocking each-other.
 
+Alternatively, the configuration file can contain a top-level array of configs, allowing multiple examples to be defined in a single file:
+
+```json
+[
+    {
+        "name": "First example",
+        "description": "Description of first example",
+        "apps": [
+            {
+                "path": "exec_path",
+                "args": [],
+                "env": {}
+            }
+        ]
+    },
+    {
+        "name": "Second example",
+        "description": "Description of second example",
+        "apps": [
+            {
+                "path": "exec_path",
+                "args": [],
+                "env": {}
+            }
+        ]
+    }
+]
 ```
 
 You can customize where to look for examples using env `SCORE_CLI_INIT_DIR`.

showcases/cli/main.rs

@@ -111,9 +111,17 @@ fn visit_dir(dir: &Path, configs: &mut Vec<ScoreConfig>) -> Result<()> {
         if is_score_file(&path) {
             let content = fs::read_to_string(&path)
                 .with_context(|| format!("Failed reading {:?}", path))?;
-            let config: ScoreConfig = serde_json::from_str(&content)
+            let value: serde_json::Value = serde_json::from_str(&content)
                 .with_context(|| format!("Invalid JSON in {:?}", path))?;
-            configs.push(config);
+            if value.is_array() {
+                let found: Vec<ScoreConfig> = serde_json::from_value(value)
+                    .with_context(|| format!("Invalid JSON array in {:?}", path))?;
+                configs.extend(found);
+            } else {
+                let config: ScoreConfig = serde_json::from_value(value)
+                    .with_context(|| format!("Invalid JSON in {:?}", path))?;
+                configs.push(config);
+            }
         }
     }
     Ok(())

showcases/kyron/BUILD

@@ -62,7 +62,7 @@ async fn on_shutdown() -> InvokeResult {
     // Configure backend with directory path (workaround: KvsBuilder::dir() not available in Rust)
     // change back to dir, if https://github.com/eclipse-score/persistency/issues/222 is resolved.
     let backend = JsonBackendBuilder::new()
-        .working_dir(PathBuf::from("./"))
+        .working_dir(PathBuf::from("/tmp"))
         .build();
 
     let builder = KvsBuilder::new(instance_id)
@@ -75,6 +75,19 @@ async fn on_shutdown() -> InvokeResult {
 
     kvs.flush().unwrap();
 
+    let instance_id = kvs.parameters().instance_id;
+    let snapshot_id = SnapshotId(0);
+    match kvs.parameters().backend.as_any().downcast_ref(){
+        Some(backend ) => {
+            let backend = backend as &JsonBackend;
+            let filename = backend.kvs_file_path(instance_id, snapshot_id);
+            info!("KVS snapshot saved to file: {:?}", filename);
+        },
+        None => {
+           
+        },
+    };
+
     Ok(())
 }
 

showcases/kyron/kyron.score.json

@@ -1,5 +1,5 @@
 {
-    "name": "Orchestration persistency - Kyron example",
+    "name": "Orchestration persistency example",
     "description": "Example for running orchestration graph with Kyron runtime and saving the state to disk",
     "apps":[
         {

showcases/kyron/main.rs

@@ -12,3 +12,13 @@ score_pkg_bundle(
         "//showcases/standalone:com.score.json",
     ],
 )
+
+score_pkg_bundle(
+    name = "kyron",
+    package_dir = "standalone",
+    bins = ["@score_kyron//src/kyron:select", "@score_kyron//src/kyron:safety_task", "@score_kyron//src/kyron:main_macro"], # TODO: kyron shall have public examples in examples folder
+
+    config_data = [
+        "//showcases/standalone:kyron.score.json",
+    ],
+)