deployer

:pager: A tool for deploying applications.

Install

$ go get github.com/pagarme/deployer

Usage

deployer command [options] <path>

Commands:
  deploy    Deploy an application using a configuration file

Options:
  --env     Environment to be used (default: main)
  --img     Docker Image to be used

Configuration File

To deploy an application you must specify a yml configuration file (e.g. deployer.yml), that consists in steps and environment configuration. A typical configuration file has the following structure:

deploy:
  type: <type>

environments:
  sandbox:
    name: sandbox
  live:
    name: live

Note: The order the steps appear in the configuration file, does not determine the order they will be executed. Check Steps for more information.

Also in order to send the logs to DynamoDB, the following environment variables must be set:

• DEPLOYER_DYNAMODB_TABLE: DynamoDB's log table
• DEPLOYER_AWS_REGION: AWS region

Deploy

Only nomad, example file:

deploy.yml

---
deploy:
  type: nomad
  job_files:
    - application.nomad

environments:
  sandbox:
    name: sandbox
  live:
    name: live

application.nomad

job "application-{{ .Environment.name }}" {
  type        = "system"
  region      = "global"
  datacenters = ["dc1"]

  constraint {
    attribute = "${node.class}"
    value     = "application-{{ .Environment.name }}"
  }

  update {
    stagger      = "5s"
    max_parallel = 1
  }

  group "web" {
    task "nginx" {
      driver = "docker"

      config {
        image      = "{{ .Image }}"
        force_pull = true

        port_map {
          "http" = 80
        }

        dns_servers = ["${attr.unique.network.ip-address}"]
      }

      env {
        CONFIG_VERSION = "v1"
        CONSUL_ADDR    = "${attr.unique.network.ip-address}:8500"
      }

      service {
        name = "application-{{ .Environment.name }}"

        tags = ["application"]

        port = "http"

        check {
          name     = "http check"
          type     = "http"
          port     = "http"
          path     = "/_health_check"
          interval = "5s"
          timeout  = "2s"
        }

        check {
          name = "Status Information Health Check"
          type = "http"
          port = "http"
          path = "/_status"
          interval = "5s"
          timeout = "2s"
        }
      }

      resources {
        cpu    = "2400"
        memory = "3584"

        network {
          mbits = 100

          port "http" {
            static = 80
          }
        }
      }
    }
  }
}