docs: Improve podtato example with HTTP service lookup

examples/podtatohead-deployment/.gitignore

@@ -0,0 +1 @@
+/slack-secret.yaml

examples/podtatohead-deployment/README.md

@@ -0,0 +1,5 @@
+### Create Secret for Slack here
+
+```
+kubectl create secret generic slack-notification --from-literal=SECURE_DATA='{"slack_hook":"<WebHook>","text":"Deployed PodTatoHead Entry Service"}' -n podtato-kubectl -oyaml --dry-run > slack-secret.yaml
+```

examples/podtatohead-deployment/check_entry.yaml

@@ -0,0 +1,12 @@
+apiVersion: lifecycle.keptn.sh/v1alpha1
+kind: KeptnTaskDefinition
+metadata:
+  name: check-entry-service
+  namespace: podtato-kubectl
+spec:
+  function:
+    httpRef:
+      url: https://raw.githubusercontent.com/keptn-sandbox/lifecycle-controller/doc/add_dns_function/functions-runtime/samples/ts/http.ts
+    parameters:
+      map:
+        url: http://podtato-head-entry.podtato-kubectl.svc.cluster.local:9000

examples/podtatohead-deployment/manifest.yaml

@@ -23,9 +23,13 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-entry
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/post-deployment-tasks: post-deployment-hello
     spec:
       terminationGracePeriodSeconds: 5
+      initContainers:
+      - name: init-myservice
+        image: busybox:1.28
+        command: ['sh', '-c', 'sleep 30']
       containers:
       - name: server
         image: ghcr.io/podtato-head/entry:latest
@@ -74,7 +78,7 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-hat
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/pre-deployment-tasks: check-entry-service
     spec:
       terminationGracePeriodSeconds: 5
       containers:
@@ -123,7 +127,7 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-left-leg
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/pre-deployment-tasks: check-entry-service
     spec:
       terminationGracePeriodSeconds: 5
       containers:
@@ -172,7 +176,7 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-left-arm
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/pre-deployment-tasks: check-entry-service
     spec:
       terminationGracePeriodSeconds: 5
       containers:
@@ -221,7 +225,7 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-right-leg
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/pre-deployment-tasks: check-entry-service
     spec:
       terminationGracePeriodSeconds: 5
       containers:
@@ -270,7 +274,7 @@ spec:
         keptn.sh/app: podtato-head
         keptn.sh/workload: podtato-head-right-arm
         keptn.sh/version: 0.1.0
-        keptn.sh/pre-deployment-tasks: pre-deployment-hello
+        keptn.sh/pre-deployment-tasks: check-entry-service
     spec:
       terminationGracePeriodSeconds: 5
       containers:

functions-runtime/samples/ts/http.ts

@@ -0,0 +1,11 @@
+let text = Deno.env.get("DATA");
+let data;
+data = JSON.parse(text);
+
+try {
+    let resp = await fetch(data.url);
+}
+catch (error){
+    console.error("Could not fetch url");
+    Deno.exit(1);
+}