From 9cad55858c0db445154a707035924afd40210f5e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Madis=20M=C3=A4gi?= <madis.magi@k-space.ee>
Date: Wed, 16 Aug 2023 19:47:48 +0300
Subject: [PATCH] Initial commit

---
 .dockerignore   | 18 +++++++++++++
 Dockerfile      |  4 +++
 app/app.py      | 67 +++++++++++++++++++++++++++++++++++++++++++++++++
 deployment.yaml | 66 ++++++++++++++++++++++++++++++++++++++++++++++++
 skaffold.yaml   | 19 ++++++++++++++
 5 files changed, 174 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 Dockerfile
 create mode 100755 app/app.py
 create mode 100644 deployment.yaml
 create mode 100644 skaffold.yaml

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..8793167
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,18 @@
+.kpt-pipeline/
+.git/
+.gitignore
+deployment.yaml
+LICENSE
+README.md
+skaffold.yaml
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+**/*.suo
+**/*.ntvs*
+**/*.njsproj
+**/*.sln
+**/*.sw?
+**/*.kpt-pipeline
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..2ef9cab
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,4 @@
+FROM codemowers/microservice-base
+RUN pip3 install kopf
+ADD /app /app
+ENTRYPOINT /app/app.py
diff --git a/app/app.py b/app/app.py
new file mode 100755
index 0000000..e8b87a5
--- /dev/null
+++ b/app/app.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+import os
+import kopf
+import prometheus_async
+from sanic import Sanic, response
+from sanic import exceptions
+
+app = Sanic("users-proxy")
+devenv = bool(os.getenv("DEV_ENV", False))
+users_lookup = {}
+
+@app.route("/", methods=["GET"])
+async def get_index(request):
+    return response.text("hello")
+
+@app.route("/users", methods=["GET"])
+async def get_users(request):
+    return response.json(list(users_lookup.values()))
+
+@app.route("/users/<username:str>", methods=["GET"])
+async def get_single_user(request, username: str):
+    user = users_lookup.get(username)
+    if user:
+        return response.json(user)
+    else:
+        raise exceptions.NotFound()
+
+@kopf.on.startup()
+async def configure(settings: kopf.OperatorSettings, **_):
+    settings.scanning.disabled = True
+    settings.posting.enabled = False
+    settings.persistence.finalizer = "users-proxy"
+    print("Kopf operator starting up")
+
+
+@kopf.on.resume('oidcgatewayusers')
+@kopf.on.create('oidcgatewayusers')
+@kopf.on.update('oidcgatewayusers')
+async def save_handler(body, **_):
+    username = body['metadata']['name']
+    groups = []
+    for group in body.get("status", {}).get("groups", []):
+        groups.append(f"{group['prefix']}:{group['name']}")
+
+    user = {
+        "username": username,
+        "display_name": body.get("spec", {}).get("customProfile", {}).get("name", None),
+        "slack_id": body.get("status", {}).get("slackId", None),
+        "groups": groups
+    }
+    print(f"Saving {username}")
+    users_lookup[username] = user
+
+@kopf.on.delete('oidcgatewayusers')
+async def delete_handler(body, **_):
+    username = body['metadata']['name']
+    print(f"Deleting {username}")
+    del users_lookup[username]
+
+@app.listener("before_server_start")
+async def do_setup(app, loop):
+    print("Setting up")
+    app.add_task(kopf.operator(clusterwide=True))
+    app.add_task(prometheus_async.aio.web.start_http_server(port=5000))
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=3001, single_process=False, motd=False, dev=devenv)
diff --git a/deployment.yaml b/deployment.yaml
new file mode 100644
index 0000000..d9185b0
--- /dev/null
+++ b/deployment.yaml
@@ -0,0 +1,66 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: users-proxy
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: users-proxy
+  template:
+    metadata:
+      labels:
+        app: users-proxy
+    spec:
+      enableServiceLinks: false
+      imagePullSecrets:
+        - name: regcred
+      serviceAccountName: oidc-gateway
+      containers:
+        - name: users-proxy
+          image: users-proxy
+          env:
+            - name: DEV_ENV
+              value: 'true'
+          ports:
+            - containerPort: 5000
+              name: metrics
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: users-proxy
+  labels:
+    app: users-proxy
+spec:
+  selector:
+    app: users-proxy
+  ports:
+  - protocol: TCP
+    port: 3001
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: users-proxy
+  annotations:
+    kubernetes.io/ingress.class: shared
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+    external-dns.alpha.kubernetes.io/target: traefik.codemowers.ee
+spec:
+  rules:
+  - host: users-proxy-72zn4.codemowers.ee
+    http:
+      paths:
+      - pathType: Prefix
+        path: "/"
+        backend:
+          service:
+            name: users-proxy
+            port:
+              number: 3001
+  tls:
+  - hosts:
+    - "*.codemowers.ee"
diff --git a/skaffold.yaml b/skaffold.yaml
new file mode 100644
index 0000000..b330149
--- /dev/null
+++ b/skaffold.yaml
@@ -0,0 +1,19 @@
+apiVersion: skaffold/v3
+kind: Config
+metadata:
+  name: users-proxy
+
+deploy:
+  kubectl: {}
+
+manifests:
+  rawYaml:
+     - deployment.yaml
+
+build:
+  artifacts:
+  - image: users-proxy
+    sync:
+      manual:
+        - src: "app/**/*.py"
+          dest: .