Add CI/CD

.drone.yml

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+---
+kind: pipeline
+name: build
+
+steps:
+- name: build image
+  image: plugins/docker
+  settings:
+    repo: kleph/quake3-status
+    tags: ${DRONE_COMMIT_SHA:0:8}
+    username:
+      from_secret: dockerhub_username
+    password:
+      from_secret: dockerhub_password
+  when:
+    event:
+      exclude:
+      - pull_request
+
+---
+deploy_commands_alias:
+- &deploy_commands
+  commands:
+  - sed "s/__LEVEL__/$${LEVEL}/g" kube/q3-status-deployment.yaml > kube/q3-status-deployment-$${LEVEL}.yaml
+  - sed "s/__NAMESPACE__/$${NAMESPACE}/g" kube/q3-status-deployment-$${LEVEL}.yaml > kube/q3-status-deployment-$${NAMESPACE}-$${LEVEL}.yaml
+  - sed "s/__IMAGE_TAG__/$${IMAGE_TAG}/g" kube/q3-status-deployment-$${NAMESPACE}-$${LEVEL}.yaml > kube/q3-status-deployment-$${NAMESPACE}-$${LEVEL}2.yaml
+  - cat kube/q3-status-deployment-$${NAMESPACE}-$${LEVEL}2.yaml
+  - echo "applying"
+  - kubectl apply -f kube/q3-status-deployment-$${NAMESPACE}-$${LEVEL}2.yaml --namespace=q3
+  - echo "== post deploy ($${LEVEL}) status:"
+  - kubectl get deployments --namespace=q3
+  - kubectl get pods --namespace=q3
+
+kind: pipeline
+name: deploy
+
+steps:
+- name: deploy staging
+  image: sinlead/drone-kubectl
+  settings:
+    kubernetes_server:
+      from_secret: kubectl_uri
+    kubernetes_cert:
+      from_secret: kubectl_cert
+    kubernetes_token:
+      from_secret: kubectl_token
+  environment:
+    IMAGE_TAG: ${DRONE_COMMIT_SHA:0:8}
+    NAMESPACE: q3
+    LEVEL: staging
+  <<: *deploy_commands
+  when:
+    branch:
+      exclude:
+      - master
+
+- name: deploy live
+  image: sinlead/drone-kubectl
+  settings:
+    kubernetes_server:
+      from_secret: kubectl_uri
+    kubernetes_cert:
+      from_secret: kubectl_cert
+    kubernetes_token:
+      from_secret: kubectl_token
+  environment:
+    IMAGE_TAG: ${DRONE_COMMIT_SHA:0:8}
+    NAMESPACE: q3
+    LEVEL: live
+  <<: *deploy_commands
+  when:
+    branch:
+      include:
+      - master
+
+depends_on:
+- build
+

Dockerfile

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+FROM python:2-slim
+  
+RUN pip install flask
+COPY /quake3_status.py /quake3_status.py
+COPY /pyquake3.py /pyquake3.py
+EXPOSE 5000
+
+CMD ["python", "/quake3_status.py"]
+

kube/q3-serviceaccount-deploy.yaml

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+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: q3-deploy
+  namespace: q3
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: q3-deploy-role
+  namespace: q3 # Should be namespace you are granting access to
+rules:
+- apiGroups: ["*"]
+  resources: ["*"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: q3-rolebinding
+  namespace: q3
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: q3-deploy-role
+subjects:
+- namespace: q3
+  kind: ServiceAccount
+  name: q3-deploy

kube/q3-status-deployment.yaml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: q3-status-deployment-__LEVEL__
+  namespace: __NAMESPACE__
+spec:
+  selector:
+    matchLabels:
+      app: q3-status
+      level: __LEVEL__
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: q3-status
+        level: __LEVEL__
+    spec:
+      containers:
+      - name: q3-status
+        image: kleph/q3-status:__IMAGE_TAG__
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 5000

kube/q3-status-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: q3-status
+  namespace: q3
+spec:
+  selector:
+    app: q3-status
+    level: live
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 5000

quake3_status.py

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+#!/usr/bin/env python3.6
+# -*- coding:utf-8 -*-
+""" basic q3 status page for my home server """
+
+from flask import Flask
+from flask import render_template
+from pyquake3 import PyQuake3
+import os
+
+# pylint: disable=invalid-name
+app = Flask(__name__)
+app.url_map.strict_slashes = False
+
+@app.route('/')
+def index(hours=None, minutes=None):
+    """ main and only app """
+
+    q3server = os.environ.get("Q3_SERVER")
+    rcon_password = os.environ.get("RCONN_PASSWORD")
+
+    q = PyQuake3(q3server, rcon_password)
+    q.update()
+
+    data = 'The name of %s is %s, running map %s with %s player(s).' % \
+              (q.get_address(), q.vars['sv_hostname'], \
+              q.vars['mapname'], len(q.players))
+
+    return data
+
+def main():
+    """ main func """
+    app.run(host='::')
+
+
+if __name__ == '__main__':
+    main()