Enable running integration tests via prow

.ci/prow/integration-test

@@ -0,0 +1,94 @@
+#!/bin/bash
+
+# SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and Gardener contributors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -u
+set -e
+
+REPO_ROOT="$(dirname $0)/../.."
+cd "${REPO_ROOT}"
+REPO_ROOT="$(pwd)"
+export REPO_ROOT
+
+TMP_DIR="/tmp"
+EXPORT_DIR="/logs/artifacts"
+BIN_DIR="$TMP_DIR/bin"
+GOBIN="$BIN_DIR"
+mkdir -p "$EXPORT_DIR"
+mkdir -p "$BIN_DIR"
+export PATH="$BIN_DIR:$PATH"
+
+export EFFECTIVE_VERSION=$($REPO_ROOT/hack/get-version.sh)
+export KUBECONFIG="$TMP_DIR/kubeconfig"
+
+export K8S_VERSION="v1.25.3"
+export KIND_VERSION="v0.18.0"
+export CLUSTER_NAME="int-test"
+
+function export_resources() {
+  for res in "$@"; do
+    echo "exporting $res"
+    kubectl get "$res" -A -o yaml > "$EXPORT_DIR/$res.yaml"
+  done
+}
+
+# prow merges the PR with the master branch, which adds a commit and messes up the version logic
+last_commit_message=$(git log -1 --pretty=%B)
+if [[ "$last_commit_message" == "Merge commit '"*"'" ]] && [[ $PULL_PULL_SHA ]]; then
+  echo "Reverting merge with master branch ..."
+  git checkout "$PULL_PULL_SHA"
+  EFFECTIVE_VERSION="$(cat $REPO_ROOT/VERSION)-$PULL_PULL_SHA"
+  echo "Setting EFFECTIVE_VERSION to $EFFECTIVE_VERSION."
+fi
+
+# download kind if not there
+echo ">>> Checking for kind"
+kv=""
+if ! kv=$(kind version 2>/dev/null); then
+  echo "kind not found, downloading version $KIND_VERSION"
+  curl -L -o "$BIN_DIR/kind" "https://kind.sigs.k8s.io/dl/$KIND_VERSION/kind-$(uname -s | tr '[:upper:]' '[:lower:]')-$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')"
+	chmod +x "$BIN_DIR/kind"
+else
+  echo "kind found: $kv"
+fi
+
+# install ginkgo if not there
+echo ">>> Checking for ginkgo"
+gv=""
+if ! gv=$(ginkgo version 2>/dev/null); then
+  echo "ginkgo not found, installing it"
+  go install "github.com/onsi/ginkgo/v2/ginkgo"
+else
+  echo "ginkgo found: $gv"
+fi
+
+# create kind cluster
+echo ">>> Creating kind cluster"
+kind create cluster --image="kindest/node:$K8S_VERSION" --name="$CLUSTER_NAME" --wait=300s
+echo ""
+
+# export logs and remove kind cluster after execution
+trap '{
+  echo ">>> Exporting logs and resources"
+  kind export logs --name="$CLUSTER_NAME" "$EXPORT_DIR"
+  export_resources deployments installations executions deployitems
+  echo ""
+  echo ">>> Deleting kind cluster"
+  kind delete cluster --name="$CLUSTER_NAME"
+  echo ""
+}' EXIT
+
+# install Landscaper
+echo ">>> Installing Landscaper"
+${REPO_ROOT}/hack/install-landscaper-for-integration-test.sh
+echo ""
+
+# run tests
+echo ">>> Running integration tests"
+ginkgo -timeout=60m -v -progress -no-color -seed=17 -fail-fast ${REPO_ROOT}/test/integration  -- \
+  --kubeconfig=$KUBECONFIG  \
+  --ls-namespace=ls-system  \
+  --ls-version=$EFFECTIVE_VERSION
+echo ""

docs/guided-tour/blueprints/echo-server/README.md

@@ -31,11 +31,11 @@ component descriptor. In detail, the connection is the following:
   ```yaml
   name: echo-server-image
   type: ociImage
-  version: v0.2.3
+  version: v0.7.0
   relation: external
   access:
     type: ociRegistry
-    imageReference: hashicorp/http-echo:0.2.3
+    imageReference: ealen/echo-server:0.7.0
   ```
 
 - The [blueprint](./blueprint/blueprint.yaml) contains a template for a `DeployItem`. Part of this is a 
@@ -52,7 +52,7 @@ component descriptor. In detail, the connection is the following:
 
   ```yaml
   values:
-    image: hashicorp/http-echo:0.2.3
+    image: ealen/echo-server:0.7.0
   ```
 
 - Finally, the [deployment.yaml](./chart/echo-server/templates/deployment.yaml) of the chart takes the image from the 
@@ -87,7 +87,6 @@ The procedure to install the helm chart with Landscaper is as follows:
    kubectl port-forward -n example service/echo-server 8080:80
    ```
 
-   Then open `localhost:8080` in a browser.  
+   Then open [`localhost:8080/?echo_body=Hello%20Landscaper!`](localhost:8080/?echo_body=Hello%20Landscaper!) in a browser.
 
-   The response should be "hello world", which is the text defined
-   in the [values.yaml](./chart/echo-server/values.yaml) of the chart.
+   The response should be "Hello Landscaper!".

docs/guided-tour/blueprints/echo-server/chart/echo-server/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
-appVersion: 1.0.0
+appVersion: 1.2.0
 description: Echo server chart
 name: echo-server
 type: application
-version: 1.0.0
+version: 1.2.0

docs/guided-tour/blueprints/echo-server/chart/echo-server/templates/deployment.yaml

@@ -17,7 +17,8 @@ spec:
         - image: {{ .Values.image }}
           imagePullPolicy: IfNotPresent
           name: echo
-          args:
-            - -text="{{ .Values.text }}"
           ports:
-            - containerPort: 5678
+            - containerPort: 80
+          env:
+          - name: PORT
+            value: "80"

docs/guided-tour/blueprints/echo-server/chart/echo-server/templates/service.yaml

@@ -8,5 +8,5 @@ spec:
     app: echo
   ports:
     - protocol: TCP
-      port: 80
-      targetPort: 5678
+      port: {{ .Values.port }}
+      targetPort: 80

docs/guided-tour/blueprints/echo-server/chart/echo-server/values.yaml

@@ -1,2 +1,2 @@
-image: hashicorp/http-echo:0.2.0
-text: hello world
+image: ealen/echo-server:0.7.0
+port: 80

docs/guided-tour/blueprints/echo-server/component-descriptor.yaml

@@ -2,7 +2,7 @@ meta:
   schemaVersion: 'v2'
 component:
   name: 'github.com/gardener/landscaper-examples/guided-tour/echo-server'
-  version: '1.0.0'
+  version: '1.2.0'
 
   repositoryContexts:
     - type: 'ociRegistry'
@@ -17,22 +17,22 @@ component:
   resources:
     - name: blueprint
       type: blueprint
-      version: 1.0.0
+      version: 1.2.0
       relation: external
       access:
         type: ociRegistry
-        imageReference: eu.gcr.io/gardener-project/landscaper/examples/blueprints/guided-tour/echo-server:1.0.0
+        imageReference: eu.gcr.io/gardener-project/landscaper/examples/blueprints/guided-tour/echo-server:1.2.0
     - name: echo-server-chart
       type: helm.io/chart
-      version: 1.0.0
+      version: 1.2.0
       relation: external
       access:
         type: ociRegistry
-        imageReference: eu.gcr.io/gardener-project/landscaper/examples/charts/guided-tour/echo-server:1.0.0
+        imageReference: eu.gcr.io/gardener-project/landscaper/examples/charts/guided-tour/echo-server:1.2.0
     - name: echo-server-image
       type: ociImage
-      version: v0.2.3
+      version: v0.7.0
       relation: external
       access:
         type: ociRegistry
-        imageReference: hashicorp/http-echo:0.2.3
+        imageReference: ealen/echo-server:0.7.0

docs/guided-tour/blueprints/echo-server/installation/installation.yaml

@@ -12,7 +12,7 @@ spec:
   componentDescriptor:
     ref:
       componentName: github.com/gardener/landscaper-examples/guided-tour/echo-server
-      version: 1.0.0
+      version: 1.2.0
 
   blueprint:
     ref: