testing build and test

.gitea/workflow/pipeline.yml

@@ -0,0 +1,49 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: home-server
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: test
+        run: |
+          cd backend
+          nix-shell -p elixir elixir_ls --run '
+            mix do deps.get, test
+          '
+
+      - name: Build and push backend image
+        run: |
+          cd client
+            docker build -t alexmickelson/elixir-demo-frontend:$GITHUB_BUILD_NUMBER .
+            docker push alexmickelson/elixir-demo-frontend:$GITHUB_BUILD_NUMBER
+          cd ../backend
+            docker build -t alexmickelson/elixir-demo-backend:$GITHUB_BUILD_NUMBER .
+            docker push alexmickelson/elixir-demo-backend:$GITHUB_BUILD_NUMBER
+
+      # - name: Deploy to Kubernetes
+      #   run: |
+      #     kubectl apply -f kubernetes/namespace.yml
+      #     kubectl get secret backend-secret --namespace alex-elixir-demo || \
+      #       kubectl create secret generic backend-secret \
+      #         --namespace alex-elixir-demo \
+      #         --from-literal=cookie=$(openssl rand -hex 32)
+
+      #     for file in kubernetes/*.yml; do
+      #       cat "$file" | envsubst | kubectl apply -f -
+      #     done

backend/.dockerignore

@@ -1,39 +1,46 @@
-# Git
+# This file excludes paths from the Docker build context.
+#
+# By default, Docker's build context includes all files (and folders) in the
+# current directory. Even if a file isn't copied into the container it is still sent to
+# the Docker daemon.
+#
+# There are multiple reasons to exclude files from the build context:
+#
+# 1. Prevent nested folders from being copied into the container (ex: exclude
+#    /assets/node_modules when copying /assets)
+# 2. Reduce the size of the build context and improve build time (ex. /build, /deps, /doc)
+# 3. Avoid sending files containing sensitive information
+#
+# More information on using .dockerignore is available here:
+# https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+.dockerignore
+
+# Ignore git, but keep git HEAD and refs to access current commit hash if needed:
+#
+# $ cat .git/HEAD | awk '{print ".git/"$2}' | xargs cat
+# d0b8727759e1e0e7aa3d41707d12376e373d5ecc
 .git
-.gitignore
+!.git/HEAD
+!.git/refs
+
+# Common development/test artifacts
+/cover/
+/doc/
+/test/
+/tmp/
+.elixir_ls
 
 # Mix artifacts
-/_build
+/_build/
-/deps
+/deps/
 *.ez
 
-# Build artifacts
+# Generated on crash by the VM
 erl_crash.dump
 
-# Static artifacts
+# Static artifacts - These should be fetched and built inside the Docker image
-/priv/static/
+# https://hexdocs.pm/phoenix/Mix.Tasks.Phx.Gen.Release.html#module-docker
-
+/assets/node_modules/
-# Environment files
+/priv/static/assets/
-.env
+/priv/static/cache_manifest.json
-.env.local
-
-# Editor files
-.vscode
-.idea
-*.swp
-*.swo
-*~
-
-# OS files
-.DS_Store
-Thumbs.db
-
-# Test files
-/cover
-/test
-
-# Documentation
-/doc
-
-# Node modules (if any frontend code was in here)
-node_modules

backend/Dockerfile

@@ -1,39 +1,58 @@
-FROM hexpm/elixir:1.15.7-erlang-26.1.2-alpine-3.18.4 AS build
+ARG ELIXIR_VERSION=1.18.4
+ARG OTP_VERSION=27.3.4.8
+ARG DEBIAN_VERSION=trixie-20260223-slim
+
+ARG BUILDER_IMAGE="docker.io/hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
+ARG RUNNER_IMAGE="docker.io/debian:${DEBIAN_VERSION}"
+
+FROM ${BUILDER_IMAGE} AS builder
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends build-essential git \
+  && rm -rf /var/lib/apt/lists/*
 
-RUN apk add --no-cache build-base git
 WORKDIR /app
-RUN mix local.hex --force && \
+
-  mix local.rebar --force
+RUN mix local.hex --force \
-ENV MIX_ENV=prod
+  && mix local.rebar --force
+
+ENV MIX_ENV="prod"
+
 COPY mix.exs mix.lock ./
 RUN mix deps.get --only $MIX_ENV
 RUN mkdir config
-
 COPY config/config.exs config/${MIX_ENV}.exs config/
 RUN mix deps.compile
-COPY lib lib
-RUN mix compile
-COPY config/runtime.exs config/
 
 COPY priv priv
+COPY lib lib
+
+RUN mix compile
+
+COPY config/runtime.exs config/
 RUN mix release
 
-FROM alpine:3.18.4 AS app
+FROM ${RUNNER_IMAGE} AS final
 
-RUN apk add --no-cache libstdc++ openssl ncurses-libs bash
+RUN apt-get update \
-ENV USER="elixir"
+  && apt-get install -y --no-install-recommends libstdc++6 openssl libncurses6 locales ca-certificates \
-WORKDIR /app
+  && rm -rf /var/lib/apt/lists/*
-RUN addgroup -g 1000 $USER && \
-  adduser -D -u 1000 -G $USER $USER
 
-COPY --from=build --chown=elixir:elixir /app/_build/prod/rel/backend ./
+RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
+  && locale-gen
 
-USER elixir
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
+
+WORKDIR "/app"
+RUN chown nobody /app
+
+ENV MIX_ENV="prod"
+
+COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/backend ./
+
+USER nobody
 
-ENV HOME=/app
-ENV MIX_ENV=prod
 ENV PHX_SERVER=true
-
-EXPOSE 4000 4369 9000-9100
-
 CMD ["/app/bin/backend", "start"]

backend/dev.Dockerfile

@@ -1,4 +1,4 @@
-FROM hexpm/elixir:1.15.7-erlang-26.1.2-alpine-3.18.4
+FROM hexpm/elixir:1.18.0-rc.0-erlang-26.2.5.8-alpine-3.23.3
 RUN apk add --no-cache build-base git bash wget
 WORKDIR /app
 

docker-compose.prod.yml

@@ -1,109 +0,0 @@
-services:
-  phoenix1:
-    build:
-      context: ./backend
-      dockerfile: Dockerfile
-    container_name: phoenix1
-    hostname: phoenix1
-    environment:
-      - RELEASE_NODE=backend@phoenix1
-      - RELEASE_DISTRIBUTION=sname
-      - RELEASE_COOKIE=super_secret_cookie_change_in_production
-      - PHX_HOST=localhost
-      - PHX_SERVER=true
-      - PORT=4000
-      - DATABASE_URL=ecto://postgres:postgres@db/backend_dev
-      - SECRET_KEY_BASE=W8nGKNhNR8vKj6A4VnwN5h5h7RZvkKmZPqxqzLzYxXGQqC6HnKp2Wm8MNqKpQxZv
-      - CLUSTER_NODES=backend@phoenix1,backend@phoenix2,backend@phoenix3
-      - OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4318
-    ports:
-      - "4001:4000"
-    healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://localhost:4000/api/health"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-
-  phoenix2:
-    build:
-      context: ./backend
-      dockerfile: Dockerfile
-    container_name: phoenix2
-    hostname: phoenix2
-    environment:
-      - RELEASE_NODE=backend@phoenix2
-      - RELEASE_DISTRIBUTION=sname
-      - RELEASE_COOKIE=super_secret_cookie_change_in_production
-      - PHX_HOST=localhost
-      - PHX_SERVER=true
-      - PORT=4000
-      - DATABASE_URL=ecto://postgres:postgres@db/backend_dev
-      - SECRET_KEY_BASE=W8nGKNhNR8vKj6A4VnwN5h5h7RZvkKmZPqxqzLzYxXGQqC6HnKp2Wm8MNqKpQxZv
-      - CLUSTER_NODES=backend@phoenix1,backend@phoenix2,backend@phoenix3
-      - OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4318
-    ports:
-      - "4002:4000"
-    healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://localhost:4000/api/health"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-
-  phoenix3:
-    build:
-      context: ./backend
-      dockerfile: Dockerfile
-    container_name: phoenix3
-    hostname: phoenix3
-    environment:
-      - RELEASE_NODE=backend@phoenix3
-      - RELEASE_DISTRIBUTION=sname
-      - RELEASE_COOKIE=super_secret_cookie_change_in_production
-      - PHX_HOST=localhost
-      - PHX_SERVER=true
-      - PORT=4000
-      - DATABASE_URL=ecto://postgres:postgres@db/backend_dev
-      - SECRET_KEY_BASE=W8nGKNhNR8vKj6A4VnwN5h5h7RZvkKmZPqxqzLzYxXGQqC6HnKp2Wm8MNqKpQxZv
-      - CLUSTER_NODES=backend@phoenix1,backend@phoenix2,backend@phoenix3
-      - OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4318
-    ports:
-      - "4003:4000"
-    healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://localhost:4000/api/health"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-
-  nginx-lb:
-    image: nginx:alpine
-    container_name: nginx-lb
-    volumes:
-      - ./nginx-lb.conf:/etc/nginx/conf.d/default.conf
-    ports:
-      - "4000:80"
-    depends_on:
-      - phoenix1
-      - phoenix2
-      - phoenix3
-
-  client:
-    build:
-      context: ./client
-      dockerfile: Dockerfile
-    container_name: client
-    ports:
-      - "5173:80"
-    depends_on:
-      - nginx-lb
-
-  otel-collector:
-    image: otel/opentelemetry-collector-contrib:latest
-    container_name: otel-collector
-    command: ["--config=/etc/otel-collector-config.yaml"]
-    volumes:
-      - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml
-    ports:
-      - "4318:4318" # OTLP HTTP receiver
-      - "4317:4317" # OTLP gRPC receiver
-      - "8888:8888" # Prometheus metrics
-      - "8889:8889" # Prometheus exporter metrics

kubernetes/0-namespace.yml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: alex-elixir-demo

kubernetes/frontend.yml

@@ -0,0 +1,62 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: frontend-deployment
+  namespace: alex-elixir-demo
+  labels:
+    app: frontend
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: frontend
+  template:
+    metadata:
+      labels:
+        app: frontend
+    spec:
+      containers:
+        - name: frontend
+          image: alexmickelson/elixir-demo-frontend:$GITHUB_BUILD_NUMBER
+          ports:
+            - containerPort: 80
+          resources:
+            requests:
+              memory: 128Mi
+              cpu: 100m
+            limits:
+              memory: 256Mi
+              cpu: 200m
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: alex-elixir-demo
+  name: frontend
+spec:
+  selector:
+    app: frontend
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80
+  type: ClusterIP
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  namespace: alex-elixir-demo
+  name: frontend
+spec:
+  ingressClassName: nginx
+  rules:
+    - host: elixir-demo.alex-kube.duckdns.org
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: frontend
+                port:
+                  number: 80

kubernetes/node-1.yml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: node-1-deployment
+  namespace: alex-elixir-demo
+  labels:
+    app: node-1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: node-1
+  template:
+    metadata:
+      labels:
+        app: node-1
+    spec:
+      containers:
+        - name: node-1
+          image: alexmickelson/elixir-demo-backend:$GITHUB_BUILD_NUMBER
+          ports:
+            - containerPort: 4000
+          env:
+            - name: PORT
+              value: "4000"
+            - name: NODE_NAME
+              value: "backend@node-1"
+            - name: COOKIE
+              valueFrom:
+                secretKeyRef:
+                  name: backend-secret
+                  key: cookie
+            - name: CLUSTER_NODES
+              value: "backend@node-1,backend@node-2,backend@node-3"
+          resources:
+            requests:
+              memory: 256Mi
+              cpu: 100m
+            limits:
+              memory: 512Mi
+              cpu: 500m
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 4000
+            initialDelaySeconds: 15
+            periodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: alex-elixir-demo
+  name: node-1
+spec:
+  selector:
+    app: node-1
+  ports:
+    - protocol: TCP
+      port: 4000
+      targetPort: 4000
+  type: ClusterIP

kubernetes/node-2.yml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: node-2-deployment
+  namespace: alex-elixir-demo
+  labels:
+    app: node-2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: node-2
+  template:
+    metadata:
+      labels:
+        app: node-2
+    spec:
+      containers:
+        - name: node-2
+          image: alexmickelson/elixir-demo-backend:$GITHUB_BUILD_NUMBER
+          ports:
+            - containerPort: 4000
+          env:
+            - name: PORT
+              value: "4000"
+            - name: NODE_NAME
+              value: "backend@node-2"
+            - name: COOKIE
+              valueFrom:
+                secretKeyRef:
+                  name: backend-secret
+                  key: cookie
+            - name: CLUSTER_NODES
+              value: "backend@node-1,backend@node-2,backend@node-3"
+          resources:
+            requests:
+              memory: 256Mi
+              cpu: 100m
+            limits:
+              memory: 512Mi
+              cpu: 500m
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 4000
+            initialDelaySeconds: 15
+            periodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: alex-elixir-demo
+  name: node-2
+spec:
+  selector:
+    app: node-2
+  ports:
+    - protocol: TCP
+      port: 4000
+      targetPort: 4000
+  type: ClusterIP

kubernetes/node-3.yml

@@ -0,0 +1,61 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: node-3-deployment
+  namespace: alex-elixir-demo
+  labels:
+    app: node-3
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: node-3
+  template:
+    metadata:
+      labels:
+        app: node-3
+    spec:
+      containers:
+        - name: node-3
+          image: alexmickelson/elixir-demo-backend:$GITHUB_BUILD_NUMBER
+          ports:
+            - containerPort: 4000
+          env:
+            - name: PORT
+              value: "4000"
+            - name: NODE_NAME
+              value: "backend@node-3"
+            - name: COOKIE
+              valueFrom:
+                secretKeyRef:
+                  name: backend-secret
+                  key: cookie
+            - name: CLUSTER_NODES
+              value: "backend@node-1,backend@node-2,backend@node-3"
+          resources:
+            requests:
+              memory: 256Mi
+              cpu: 100m
+            limits:
+              memory: 512Mi
+              cpu: 500m
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 4000
+            initialDelaySeconds: 15
+            periodSeconds: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: alex-elixir-demo
+  name: node-3
+spec:
+  selector:
+    app: node-3
+  ports:
+    - protocol: TCP
+      port: 4000
+      targetPort: 4000
+  type: ClusterIP

otel-collector-config.yaml

@@ -12,34 +12,24 @@ processors:
     send_batch_size: 1024
 
 exporters:
-  # Log to console for debugging
+  debug:
-  logging:
-    loglevel: info
-
-  # Export to Prometheus
   prometheus:
     endpoint: 0.0.0.0:8889
     namespace: websocket_game
 
-  # Uncomment to export to Jaeger for traces
-  # jaeger:
-  #   endpoint: jaeger:14250
-  #   tls:
-  #     insecure: true
-
 service:
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
-      exporters: [logging]
+      exporters: [debug]
 
     metrics:
       receivers: [otlp]
       processors: [batch]
-      exporters: [logging, prometheus]
+      exporters: [debug, prometheus]
 
     logs:
       receivers: [otlp]
       processors: [batch]
-      exporters: [logging]
+      exporters: [debug]