Dockerize

.dockerignore

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+settings.cfg

.github/workflows/docker-image.yml

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+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "master" ]
+env:
+      REGISTRY: ghcr.io
+      IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    permissions:
+      contents: read
+      packages: write
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v3
+
+    # for multiplatform image support
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Log in to the Container registry
+      uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Extract metadata (tags, labels) for Docker
+      id: meta
+      uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+      with:
+        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+        tags: |
+          type=sha
+          type=raw,value=latest,enable={{is_default_branch}}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+      with:
+        context: .
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        platforms: linux/amd64,linux/arm64

.vscode/settings.json

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+{
+    "githubPullRequests.ignoredPullRequestBranches": [
+        "master"
+    ]
+}

Dockerfile

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+FROM python:3-alpine
+
+WORKDIR /app
+COPY requirements.txt /app
+RUN --mount=type=cache,target=/root/.cache/pip pip3 install -r requirements.txt
+
+# install gunicorn production server
+RUN --mount=type=cache,target=/root/.cache/pipu pip3 install gunicorn
+
+COPY . /app
+
+# put your settings.cfg in here
+RUN mkdir /config
+RUN ln -s /config/settings.cfg /app/settings.cfg
+
+EXPOSE 8000
+CMD ["gunicorn", "-c", "gunicorn.py", "app:app"]

gunicorn.py

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+
+import multiprocessing
+import os
+
+bind = f"0.0.0.0:{os.getenv('PORT', '8000')}"
+accesslog = "-"
+access_log_format = "%(h)s %(l)s %(u)s %(t)s '%(r)s' %(s)s %(b)s '%(f)s' '%(a)s' in %(D)sµs"  # noqa: E501
+
+workers = int(os.getenv("WEB_CONCURRENCY", multiprocessing.cpu_count() * 2))
+threads = int(os.getenv("PYTHON_MAX_THREADS", 1))

manifests/manifest.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mtapi-config
+data:
+  settings.cfg: |
+    MTA_KEY = 'i-dont-think-this-requires-a-key-but-whatever'
+    STATIONS_FILE = './data/stations.json'
+    CROSS_ORIGIN = '*'
+    MAX_TRAINS=10
+    MAX_MINUTES=30
+    CACHE_SECONDS=60
+    THREADED=True
+    DEBUG=False
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mtapi
+spec:
+  selector:
+    matchLabels:
+      app: mtapi
+  template:
+    metadata:
+      labels:
+        app: mtapi
+    spec:
+      containers:
+        - name: mtapi
+          image: ghcr.io/asg0451/mtapi:latest
+          env:
+            - name: WEB_CONCURRENCY
+              value: "4"
+          resources:
+            requests:
+              memory: "512Mi"
+              cpu: "500m"
+            limits:
+              memory: "1Gi"
+              cpu: "2"
+          ports:
+            - containerPort: 8000
+          volumeMounts:
+            - name: mtapi-config
+              mountPath: /config
+      volumes:
+        - name: mtapi-config
+          configMap:
+            name: mtapi-config