PI-1969 Deploy dummy service for testing ingress issues (#3347)

* PI-1969 Deploy dummy service for testing ingress issues

* Pin Flask version

.github/workflows/tools.yml

@@ -17,6 +17,7 @@ jobs:
       matrix:
         project:
           - feature-flags
+          - ingress-test
     steps:
       - uses: actions/checkout@v4
 

tools/ingress-test/Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3-slim
+WORKDIR /app
+
+RUN useradd --uid 100 --create-home --system app
+USER 100
+
+RUN pip install --no-cache-dir Flask==3.0.2
+COPY server.py server.py
+CMD ["python", "server.py"]

tools/ingress-test/deploy/Chart.yaml

@@ -0,0 +1,10 @@
+apiVersion: v2
+appVersion: '1.0'
+description: A Helm chart for Kubernetes
+name: ingress-test
+version: 1.0.0
+
+dependencies:
+  - name: generic-service
+    version: "2.8"
+    repository: https://ministryofjustice.github.io/hmpps-helm-charts

tools/ingress-test/deploy/values.yaml

@@ -0,0 +1,32 @@
+---
+generic-service:
+  nameOverride: ingress-test
+
+  replicaCount: 2
+
+  image:
+    repository: ghcr.io/ministryofjustice/hmpps-probation-integration-services/ingress-test
+    tag: "1.0"
+    port: 5000
+
+  securityContext:
+    runAsUser: 100 # app
+
+  ingress:
+    enabled: true
+    host: ingress-test.probation-integration.service.justice.gov.uk
+    tlsSecretName: ingress-test-cert
+
+  allowlist:
+    groups:
+      - internal
+      - unilink_staff
+
+  readinessProbe:
+    httpGet:
+      path: /test/0
+    initialDelaySeconds: 5
+  livenessProbe:
+    httpGet:
+      path: /test/0
+    initialDelaySeconds: 5

tools/ingress-test/server.py

@@ -0,0 +1,12 @@
+from flask import Flask, make_response
+import time
+
+app = Flask(__name__)
+
+@app.route('/test/<int:n>', methods=['GET'])
+def test(n):
+    time.sleep(n)
+    return make_response('OK', 200)
+
+if __name__ == "__main__":
+    app.run(host='0.0.0.0', port=5000, threaded=True)