Образовательный проект «SnakeProject» Михаила Козлова

⇒ FreeBSD and Nix ⇐

CISCO

Voice(Asterisk\Cisco)

Microsoft

Powershell

Python

SQL\T-SQL

1С

Общая

WEB Разработка

ORACLE SQL \ JAVA

Мото

Стрельба, пневматика, оружие

Саморазвитие и психология

Deploy golang simple web app as service on terraform and ansible

Deploy golang simple web app as service on terraform and ansible

Простейший веб-сервер на go
Терраформом создастся машина в digital ocean
Далее создастся dns запись в aws
На машине приложение на go поднимется как сервис с помощью ansible

terraform.tfvars
do_token="***"
local_ssh_key_path="~/.ssh/id_rsa.pub"
email="email_at_domain_local"
aws_access_key = "***"
aws_secret_key = "***"

variables.tf
variable "do_token" {}
variable "aws_access_key" {}
variable "aws_secret_key" {}
variable "aws_region" {
  default = "eu-west-1"
}
variable "local_ssh_public_key" {
    default     = "~/.ssh/id_rsa.pub"
}
variable "local_ssh_private_key" {
    default     = "~/.ssh/id_rsa"
}
variable "devs" {
  description = "Settings"
  type        = map(any)
  default     = {
    your_login  = "your_user_name",
    general_domain = "domain.local"
  }
}

provider.tf
terraform {
  required_providers {
    digitalocean = {
      source = "digitalocean/digitalocean"
      version = "~> 2.0"
    }
  }
}
provider "digitalocean" {
  token = var.do_token
}
provider "aws" {
    access_key  = var.aws_access_key
    secret_key  = var.aws_secret_key
    region = var.aws_region
}

resources.tf
resource "digitalocean_volume" "temp_vol1" {
  region                  = "nyc1"
  name                    = "temp_vol1"
  size                    = 5
  initial_filesystem_type = "ext4"
}
resource "digitalocean_ssh_key" "local_ssh_pkey" {
  name       = "local_ssh_public_key"
  public_key = file(var.local_ssh_public_key)
}
resource "digitalocean_droplet" "foobar" {
  name   = "foobar"
  size   = "s-1vcpu-1gb"
  image  = "ubuntu-22-04-x64"
  region = "nyc1"
  ssh_keys   = [digitalocean_ssh_key.local_ssh_pkey.id]
  volume_ids = [digitalocean_volume.temp_vol1.id]
}
locals {
  vps_ip = digitalocean_droplet.foobar.ipv4_address
}
data "aws_route53_zone" "zone" {
  name = var.devs.general_domain
}
resource "aws_route53_record" "record" {
  zone_id = data.aws_route53_zone.zone.id
  name    = var.devs.your_login
  allow_overwrite = true
  type    = "A"
  ttl     = "300"
  records = [local.vps_ip]
}
resource "local_file" "hosts" {
  filename = "${path.module}/hosts.yml"
  content = templatefile("${path.module}/hosts.tmpl",
    {
      droplet = digitalocean_droplet.foobar
    }
  )
  provisioner "local-exec" {
    command = "ANSIBLE_CONFIG=${path.module}/ansible.cfg ansible-playbook playbook.yaml -i hosts.yml"
  }
}

hosts.tmpl
all:
  hosts:
    ${droplet.name}:
      ansible_ssh_host: ${droplet.ipv4_address}
      ansible_ssh_private_key_file: /root/.ssh/id_rsa
      ansible_ssh_public_key_file: /root/.ssh/id_rsa.pub

ansible.cfg
[defaults]
host_key_checking=false
inventory=./hosts.yml

playbook.yaml
- hosts:
  - all
  become: true
  roles:
    - role: go

roles/go/files/go_app.service
[Unit]
Description=openroad flow backend server daemon

[Service]
Type=simple
ExecStart=/tmp/main
Restart=on-failure
RestartSec=10s
WorkingDirectory=/tmp

[Install]
WantedBy=multi-user.target

roles/go/files/main.go
package main

import (
        "fmt"
        "log"
        "net/http"
)

func main() {

        // API routes
        http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
                fmt.Fprintf(w, "Hello world!")
        })
        http.HandleFunc("/hi", func(w http.ResponseWriter, r *http.Request) {
                fmt.Fprintf(w, "Hi")
        })

        port := ":80"
        fmt.Println("Server is running on port" + port)

        // Start server on port specified above
        log.Fatal(http.ListenAndServe(port, nil))
}

roles/go/handlers/main.yml
---
- name: Start go_app
  systemd:
    name: go_app
    state: started
    enabled: yes

roles/go/tasks/main.yml
---
- name: Install golang
  apt:
    name: golang
    state: present
    update_cache: true
- name: Copy golang script
  copy:
    src: "{{ role_path }}/files/main.go"
    dest: /tmp/main.go
- name: Build golang script
  shell: cd /tmp && go build /tmp/main.go
#- name: Start golang script
#  shell: go run /tmp/main.go
- name: Copy golang service
  copy:
    src: "{{ role_path }}/files/go_app.service"
    dest: "/etc/systemd/system/go_app.service"
- name: Apply daemon-reload
  command: systemctl daemon-reload
  notify:
    - Start go_app

# terraform init
# terraform apply

Комментарии пользователей