Dockerize the api

Author: victorsteven

.env

@@ -1,14 +1,14 @@
 # Postgres Live
-DB_HOST=127.0.0.1
+DB_HOST=postgres
 DB_DRIVER=postgres
-API_SECRET=98hbun98h #This is used when creating a JWT. It can be anything you want 
+API_SECRET=98hbun98h #Used for creating a JWT. Can be anything 
 DB_USER=steven
 DB_PASSWORD=
 DB_NAME=fullstack_api
 DB_PORT=5432 #Default postgres port
 
 # Postgres Test
-TestDbHost=127.0.0.1
+TestDbHost=postgres_test
 TestDbDriver=postgres
 TestApiSecret=98hbun98h
 TestDbUser=steven
@@ -17,16 +17,16 @@ TestDbName=fullstack_api_test
 TestDbPort=5432
 
 # Mysql Live
-# DB_HOST=127.0.0.1
+# DB_HOST=mysql
 # DB_DRIVER=mysql 
-# API_SECRET=98hbun98h #This is used when creating a JWT. It can be anything you want 
+# API_SECRET=98hbun98h #Used for creating a JWT. Can be anything 
 # DB_USER=steven
 # DB_PASSWORD=here
-# DB_NAME=fullstack_api
+# DB_NAME=fullstack_mysql
 # DB_PORT=3306 #Default mysql port
 
-# Mysql Test
-# TestDbHost=127.0.0.1
+# # Mysql Test
+# TestDbHost=mysql_test
 # TestDbDriver=mysql
 # TestApiSecret=98hbun98h
 # TestDbUser=steven

Dockerfile

@@ -0,0 +1,44 @@
+# Start from golang base image
+FROM golang:alpine as builder
+
+# ENV GO111MODULE=on
+
+# Add Maintainer info
+LABEL maintainer="Steven Victor <chikodi543@gmail.com>"
+
+# Install git.
+# Git is required for fetching the dependencies.
+RUN apk update && apk add --no-cache git
+
+# Set the current working directory inside the container 
+WORKDIR /app
+
+# Copy go mod and sum files 
+COPY go.mod go.sum ./
+
+# RUN go mod tidy
+
+# Download all dependencies. Dependencies will be cached if the go.mod and the go.sum files are not changed 
+RUN go mod download 
+
+# Copy the source from the current directory to the working Directory inside the container 
+
+COPY . .
+# Build the Go app
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
+
+# Start a new stage from scratch
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+
+WORKDIR /root/
+
+# Copy the Pre-built binary file from the previous stage
+COPY --from=builder /app/main .
+COPY --from=builder /app/.env .
+
+# Expose port 8080 to the outside world
+EXPOSE 8080
+
+#Command to run the executable
+CMD ["./main"]

api/server.go

@@ -12,6 +12,13 @@ import (
 
 var server = controllers.Server{}
 
+func init() {
+	// loads values from .env into the system
+	if err := godotenv.Load(); err != nil {
+		log.Print("sad .env file found")
+	}
+}
+
 func Run() {
 
 	var err error

docker-compose.yml

@@ -0,0 +1,54 @@
+version: '3'
+services:
+  app:
+    container_name: full_app
+    build: .
+    ports: 
+      - 8080:8080 # Forward the exposed port 8080 on the container to port 8080 on the host machine
+    restart: on-failure
+    volumes:
+      - api:/usr/src/app/
+    depends_on:
+      - postgres # This service depends on postgres. Start that first.
+      # - mysql # This service depends on mysql. Start that first.
+    networks:
+      - fullstack
+
+  postgres:
+    image: postgres:latest
+    container_name: full_db
+    environment:
+      - POSTGRES_USER=${DB_USER}  
+      - POSTGRES_PASSWORD=${DB_PASSWORD}
+      - POSTGRES_DB=${DB_NAME}
+      - DATABASE_HOST=${DB_HOST} 
+    ports:
+      - '5432:5432'
+    volumes:
+      - database_postgres:/var/lib/postgresql/data
+    networks:
+      - fullstack
+
+  # mysql:
+  #   image: mysql:5.7
+  #   ports: 
+  #     - 3306:3306
+  #   environment: 
+  #     - MYSQL_DATABASE=${DB_NAME}
+  #     - MYSQL_USER=${DB_USER}
+  #     - MYSQL_PASSWORD=${DB_PASSWORD}
+  #     - MYSQL_ROOT_PASSWORD=${DB_PASSWORD}
+  #     - DATABASE_HOST=${DB_HOST} 
+  #   volumes:
+  #     - database_mysql:/var/lib/postgresql/data
+  #   networks:
+  #     - fullstack
+
+volumes:
+  api:
+  database_postgres:
+
+# Networks to be created to facilitate communication between containers
+networks:
+  fullstack:
+

fullstack

@@ -1,7 +1,11 @@
 package main
 
-import "github.com/victorsteven/fullstack/api"
+import (
+	"github.com/victorsteven/fullstack/api"
+)
 
 func main() {
+
 	api.Run()
+
 }