[Feat] Easy setup for Postgre on Linux with Docker

.dockerignore

@@ -0,0 +1,2 @@
+target/
+Dockerfile

.gitignore

@@ -2,3 +2,6 @@
 **/*.rs.bk
 .idea
 config.toml
+
+# Remove Secrets
+secrets/

Dockerfile

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+# This is dev version to make the Cargo builds fast and should re-build and run the whole
+# app everytime the container is restarted, as Rust doesn't has a proper way of hot reloading
+
+# Keeping Rust to it's latest version for having the latest Rust Dependency.
+# Once async/await is introduced, we can hard-code the version.
+FROM rust:latest
+
+WORKDIR /app/spamwatch-api
+
+COPY . /app/spamwatch-api
+
+# This will cache the library builds, which will ultimately help in
+# re-running our apps faster.
+RUN cargo build
+
+ENV RUST_BACKTRACE 1
+
+CMD ["cargo", "run"]
+

Dockerfile.prod

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+FROM rust:1.36
+
+WORKDIR /app/spamwatch-api
+
+COPY ./ /app/spamwatch-api
+
+RUN cargo build --release
+
+CMD ["cargo", "run"]
+

README.md

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+# SpamWatchAPI
+
+API server for SpamWatch
+
+## Running via Docker
+
+Before running `docker-compose` please make sure you have added:
+* Postgres password in `/secrets/.postgres-passwd`
+* Create `config.toml` from `example.config.toml`.
+  - Do change the hostname for [database] config to `host = "postgres"`
+
+```
+docker-compose up [-d]
+```
+

docker-compose.prod.yml

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+version: "3.7"
+
+secrets:
+  postgres_passwd:
+    file: ./secrets/.postgres-passwd
+
+services:
+  postgres:
+    image: postgres:11.4-alpine
+    # for production we don't need to expose ports
+      - '5432'
+    secrets:
+      - postgres_passwd
+    environment:
+      POSTGRES_USER: SpamWatchAPI
+      POSTGRES_DB: SpamWatchAPI
+      POSTGRES_PASSWORD_FILE: /run/secrets/postgres_passwd
+  api:
+    build:
+      context: ./
+      dockerfile: Dockerfile
+    ports:
+      - '6345:6345'
+

docker-compose.yml

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+version: "3.7"
+
+secrets:
+  postgres_passwd:
+    file: ./secrets/.postgres-passwd
+
+services:
+  postgres:
+    image: postgres:11.4-alpine
+    # for production we can remove this exposed ports, as it helps in security
+    # while debugging for db in prod, should be done via a client container.
+    ports:
+      - '5432:5432'
+    secrets:
+      - postgres_passwd
+    environment:
+      POSTGRES_USER: SpamWatchAPI
+      POSTGRES_DB: SpamWatchAPI
+      POSTGRES_PASSWORD_FILE: /run/secrets/postgres_passwd
+  api:
+    build:
+      context: ./
+      dockerfile: Dockerfile
+    depends_on:
+      - postgres
+    ports:
+      - '6345:6345'
+    volumes:
+      - ${PWD}:/app/spamwatch-api
+

example.config.toml

@@ -5,6 +5,13 @@ masterid = 777000
 
 [database]
 host = "127.0.0.1"
+port = 5432
 password = "password"
 username = "SpamWatchAPI"
 name = "SpamWatchAPI"
+
+[server]
+# this is required for docker containers, to be available from
+# bridge, for any exposed port
+host = "0.0.0.0"
+port = 6345