some improvements to sim

api.w

@@ -1,4 +1,4 @@
-interface IWorkload {
+interface IWorkload extends std.IResource {
   /** starts the container */
   inflight start(): void;
 

containers.w

@@ -17,6 +17,8 @@ class Workload impl api.IWorkload {
     } else {
       throw "unsupported target ${target}";
     }
+
+    std.Node.of(this.inner).hidden = true;
   }
 
   pub inflight start() {

sim/workload.w

@@ -35,19 +35,22 @@ class Workload impl api.IWorkload {
   }
 
   pub inflight start(): void {
-    log("starting container");
-    log("appdir=${this.appDir}");
+    log("starting workload...");
 
     let opts = this.props;
 
-    let image = opts.image;
-
     // if this a reference to a local directory, build the image from a docker file
-    log("image: ${image}");
-    if image.startsWith("./") {
-      log("building locally from ${image} and tagging ${this.imageTag}...");
-      utils.shell("docker", ["build", "-t", this.imageTag, image], this.appDir);
+    if opts.image.startsWith("./") {
+      // check if the image is already built
+      try {
+        utils.shell("docker", ["inspect", this.imageTag]);
+        log("image ${this.imageTag} already exists");
+      } catch {
+        log("building locally from ${opts.image} and tagging ${this.imageTag}...");
+        utils.shell("docker", ["build", "-t", this.imageTag, opts.image], this.appDir);
+      }
     } else {
+      log("pulling ${opts.image}");
       utils.shell("docker", ["pull", opts.image], this.appDir);
     }
 
@@ -83,6 +86,7 @@ class Workload impl api.IWorkload {
       }
     }
 
+    log("starting container ${this.containerId}");
     utils.shell("docker", dockerRun.copy());
 
     let out = Json.parse(utils.shell("docker", ["inspect", this.containerId]));

test/local-build.test.w

@@ -9,5 +9,9 @@ let app = new containers.Workload(
 
 test "can access container" {
   let response = http.get("${app.url()}");
+  if let body = response.body {
+    log(body);
+  }
+
   assert((response.body ?? "") == "Hello, Wingnuts!");
 }

test/my-app/Dockerfile

@@ -1,4 +1,4 @@
 FROM node:20.8.0-alpine
-
+EXPOSE 3000
 ADD index.js /app/index.js
 ENTRYPOINT [ "/app/index.js" ]

test/simple.test.w

@@ -1,9 +1,21 @@
+bring cloud;
+bring http;
 bring "../containers.w" as containers;
 
-new containers.Workload(
+let app = new containers.Workload(
   image: "hashicorp/http-echo",
   port: 5678,
   public: true,
   replicas: 2,
   args: ["-text=bang_bang"],
-);
+) as "http-echo";
+
+test "http get" {
+  if let url = app.url() {
+    let response = http.get(url);
+    log(response.body ?? "");
+    if let body = response.body {
+      assert(body.contains("bang_bang"));
+    }
+  }
+}