hiphop basic config

.gitignore

+
+hiphop/__pycache__/*

.gitlab-ci.yml

+stages:
+    - build
+    - deploy
+    - teardown
+
+variables:
+  KUBECTL: "transit/kubectl-plus:v1.19.4"
+  CLUSTER: "rig.th-luebeck.dev"
+
+container:
+  stage: build
+  only:
+      changes:
+      - hiphop/*
+      - hiphop/*/*
+  script:
+      - mkdir -p /kaniko/.docker
+      - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+      - cd src
+      - /kaniko/executor --context . --destination $CI_REGISTRY_IMAGE/hiphop:latest
+
+secrets:
+  stage: build
+  image: $KUBECTL
+  script:
+    - kubectl delete secret gitlab-registry-credentials || true
+    - "kubectl create secret docker-registry gitlab-registry-credentials \
+          --docker-server=$CI_REGISTRY \
+          --docker-username=image-registry \ 
+          --docker-password=$REGISTRY_READ_TOKEN \ 
+          "
+
+hiphop:
+  stage: deploy
+  image: $KUBECTL
+  script:
+    - NS=$(kubectl config view --minify --output 'jsonpath={..namespace}')
+    - VHOST=hiphop.$NS.$CLUSTER TIER=1 mo deploy/hiphop-deploy+svc.yaml | kubectl apply -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=2 mo deploy/hiphop-deploy+svc.yaml | kubectl apply -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=3 mo deploy/hiphop-deploy+svc.yaml | kubectl apply -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=4 mo deploy/hiphop-deploy+svc.yaml | kubectl apply -f -
+    - VHOST=hiphop.$NS.$CLUSTER mo deploy/hiphop-ingress.yaml | kubectl apply -f -
+
+shutdown:
+  stage: teardown
+  image: $KUBECTL
+  when: manual
+  script:
+    - NS=$(kubectl config view --minify --output 'jsonpath={..namespace}')
+    - VHOST=hiphop.$NS.$CLUSTER TIER=1 mo deploy/hiphop-deploy+svc.yaml | kubectl delete -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=2 mo deploy/hiphop-deploy+svc.yaml | kubectl delete -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=3 mo deploy/hiphop-deploy+svc.yaml | kubectl delete -f -
+    - VHOST=hiphop.$NS.$CLUSTER TIER=4 mo deploy/hiphop-deploy+svc.yaml | kubectl delete -f -
+    - VHOST=hiphop.$NS.$CLUSTER mo deploy/hiphop-ingress.yaml | kubectl delete -f -

deploy/hiphop-deploy+svc.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hiphop-deployment-{{ TIER }}
+  annotations:
+    sidecar.jaegertracing.io/inject: "true"
+spec:
+  replicas: {{ TIER }}
+  selector:
+    matchLabels:
+      app: hiphop
+      tier: {{ TIER }}
+  template:
+    metadata:
+      labels:
+        app: hiphop
+        tier: {{ TIER }}
+    spec:
+      imagePullSecrets:
+      - name: gitlab-registry-credentials
+      containers:
+      - name: hiphop
+        image: git.mylab.th-luebeck.de:4181/cloud-native/lab-tracing/hiphop:latest
+        imagePullPolicy: Always
+        resources:
+          limits:
+            cpu: "50m"
+        ports:
+        - containerPort: 80
+        env:
+        - name: HIPHOP
+          value: "hiphop"
+        - name: TIER
+          value: {{ TIER }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: hiphop-service-{{ TIER }}
+spec:
+  selector:
+    app: hiphop
+    tier: {{ TIER }}
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80
+

deploy/hiphop-ingress.yaml

+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: hiphop-ingress
+  annotations:
+    cert-manager.io/cluster-issuer: "letsencrypt-production"
+spec:
+  rules:
+  - host: {{ VHOST }}
+    http:
+      paths:
+      - backend:
+          serviceName: hiphop-service-1
+          servicePort: 80
+  tls:
+  - secretName: prime-ingress-cert
+    hosts:
+      - {{ VHOST }}

hiphop/Dockerfile

+FROM python:3.9-alpine
+
+COPY . /app/
+WORKDIR /app
+
+RUN apk update && apk upgrade && apk add --no-cache bash git openssh
+RUN pip3 install -r requirements.txt
+
+ENV FLASK_APP=service.py
+EXPOSE 80
+
+ENTRYPOINT ["flask", "run", "--host=0.0.0.0", "--port=80"]

hiphop/service.py

-from flask import Flask
+from flask import Flask, redirect
 from jaeger_client import Config
 from flask_opentracing import FlaskTracing
 import requests
+import os
 
 service = os.environ.get('HIPHOP', 'hiphop')
 tier = int(os.environ.get('TIER', '1'))