chore: Add Docker, Docker Compose and Caddy

Author: rogerpinho

.dockerignore

@@ -0,0 +1,18 @@
+.dockerignore
+# there are valid reasons to keep the .git, namely so that you can get the
+# current commit hash
+#.git
+.log
+tmp
+
+# Mix artifacts
+_build
+deps
+*.ez
+releases
+
+# Generate on crash by the VM
+erl_crash.dump
+
+# Static artifacts
+node_modules

Caddyfile

@@ -0,0 +1,4 @@
+brasilemdados.com {
+	reverse_proxy 127.0.0.1:4000
+	tls rogervezaro1997@gmail.com
+}

Dockerfile

@@ -0,0 +1,59 @@
+
+# Step 1 - hex dependencies
+#
+FROM hexpm/elixir:1.13.2-erlang-24.2.1-alpine-3.15.0 AS otp-dependencies
+
+WORKDIR /app
+
+ENV MIX_ENV="prod"
+
+# Install Alpine dependencies
+RUN apk add --no-cache git && \
+    apk  --no-cache add build-base
+
+# Install Erlang dependencies
+RUN mix local.rebar --force && \
+    mix local.hex --force
+
+# Install hex dependencies
+# COPY mix.* ./
+COPY mix.exs mix.lock ./
+RUN mix deps.get --only prod
+RUN mix deps.compile
+
+# Compile codebase
+COPY config config
+COPY lib lib
+
+
+# Compile assets
+COPY priv priv
+COPY assets assets
+
+RUN mix assets.deploy
+
+RUN mix compile
+# Build OTP release
+COPY rel rel
+RUN mix release
+
+#
+# Step 2 - build a lean runtime container
+#
+FROM alpine:3.15.0
+
+# Install Alpine dependencies
+RUN apk update --no-cache && \
+    apk upgrade --no-cache && \
+    apk add --no-cache bash openssl libgcc libstdc++ ncurses-libs
+
+WORKDIR /app
+
+RUN chown nobody /app
+
+# Only copy the final release from the build stage
+COPY --from=otp-dependencies --chown=nobody:root /app/_build/prod/rel/brasil_em_dados ./
+
+USER nobody
+
+CMD /app/bin/server

config/runtime.exs

@@ -60,7 +60,7 @@ if config_env() == :prod do
   # If you are doing OTP releases, you need to instruct Phoenix
   # to start each relevant endpoint:
   #
-  config :brasil_em_dados, BrasilEmDadosWeb.Endpoint, server: true
+  # config :brasil_em_dados, BrasilEmDadosWeb.Endpoint, server: true
   #
   # Then you can assemble a release by calling `mix release`.
   # See `mix help release` for more information.

docker-compose.yml

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+version: '3.8'
+services: 
+  web:
+    build:
+      context: .
+    env_file: .env    
+    ports:
+      - "4000:4000"
+    environment: 
+      DATABASE_URL: "${DATABASE_URL}"
+      SECRET_KEY_BASE: "${SECRET_KEY_BASE}"
+      PORT: "${PORT}"
+    depends_on:
+      - db
+
+  db:
+    container_name: brasil-em-dados-postgres
+    image: postgres:14.1-alpine
+    env_file: .env    
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: "${POSTGRES_DB}"
+      POSTGRES_USER: "${POSTGRES_USER}"
+      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
+    ports:
+      - '5432:5432'
+    volumes: 
+      - db:/var/lib/postgresql/data
+  
+  caddy:
+    image: caddy:2.5.0-alpine    
+    restart: unless-stopped
+    ports:
+      - "80:80"
+      - "443:443"
+    volumes:
+      - $PWD/Caddyfile:/etc/caddy/Caddyfile
+      - caddy_data:/data
+      - caddy_config:/config
+volumes:
+  db: 
+  caddy_data:
+  caddy_config: