enrqe6f2

1# make sure that you have your public/private key pair created
2# Command:
3# jantoth@debian:~$ ssh-keygen -f mykey
4
5
6# files that should be present in your directory 
7# -rw-r--r-- 1 jantoth jantoth  590 Dec 16 09:14 instance.tf
8# -rw------- 1 jantoth jantoth 1679 Dec 16 15:07 mykey
9# -rw-r--r-- 1 jantoth jantoth  410 Dec 16 15:07 mykey.pub
10# -rw-r--r-- 1 jantoth jantoth  135 Dec 16 09:14 provider.tf
11# -rw-r--r-- 1 jantoth jantoth  224 Dec 16 09:14 script.sh
12# -rw-r--r-- 1 jantoth jantoth  103 Dec 16 15:05 terraform.tfvars
13# -rw-r--r-- 1 jantoth jantoth  366 Dec 16 15:24 vars.tf
14
15
16# *****************************************
17# *                                       *
18# *       file:  instance.tf              *
19# *                                       * 
20# *****************************************
21
22jantoth@debian:~$ cat instance.tf
23
24...
25resource "aws_key_pair" "mykey" {
26  key_name = "mykey"
27  public_key = "${file("${var.PATH_TO_PUBLIC_KEY}")}"
28}
29
30resource "aws_instance" "example" {
31  ami = "${lookup(var.AMIS, var.AWS_REGION)}"
32  instance_type = "t2.micro"
33  key_name = "${aws_key_pair.mykey.key_name}"
34
35  provisioner "file" {
36    source = "script.sh"
37    destination = "/tmp/script.sh"
38  }
39  provisioner "remote-exec" {
40    inline = [
41      "chmod +x /tmp/script.sh",
42      "sudo /tmp/script.sh"
43    ]
44  }
45  connection {
46    user = "${var.INSTANCE_USERNAME}"
47    private_key = "${file("${var.PATH_TO_PRIVATE_KEY}")}"
48  }
49}
50...
51  
52:wq!
53
54# *****************************************
55# *                                       *
56# *       file:  provider.tf              *
57# *                                       * 
58# *****************************************
59
60jantoth@debian:~$ cat provider.tf
61
62...
63provider "aws" {
64    access_key = "${var.AWS_ACCESS_KEY}"
65    secret_key = "${var.AWS_SECRET_KEY}"
66    region = "${var.AWS_REGION}"
67}
68...
69:wq!
70
71
72# *****************************************
73# *                                       *
74# *       file:  terraform.tfvars         *
75# *                                       * 
76# *****************************************
77
78jantoth@debian:~$ cat terraform.tfvars
79
80...
81AWS_ACCESS_KEY = "AKI...WQ"
82AWS_SECRET_KEY = "DU2...k6X"
83...
84:wq!
85
86
87# *****************************************
88# *                                       *
89# *       file:  vars.tf                  *
90# *                                       * 
91# *****************************************
92
93jantoth@debian:~$ cat vars.tf
94
95...
96variable "AWS_ACCESS_KEY" {}
97variable "AWS_SECRET_KEY" {}
98variable "AWS_REGION" {
99  default = "eu-central-1"
100}
101variable "AMIS" {
102  type = "map"
103  default = {
104    eu-central-1 = "ami-13b8337c"
105  }
106}
107
108variable "PATH_TO_PRIVATE_KEY" {
109  default = "mykey"
110}
111variable "PATH_TO_PUBLIC_KEY" {
112  default = "mykey.pub"
113}
114variable "INSTANCE_USERNAME" {
115  default = "ubuntu"
116}
117
118...
119:wq!
120
121
122# *****************************************
123# *                                       *
124# *       file:  script.sh                *
125# *                                       * 
126# *****************************************
127
128jantoth@debian:~$ cat script.sh
129
130...
131#!/bin/bash
132
133# sleep until instance is ready
134until [[ -f /var/lib/cloud/instance/boot-finished ]]; do
135  sleep 1
136done
137
138# install nginx
139apt-get update
140apt-get -y install nginx
141
142# make sure nginx is started
143service nginx start
144...
145    
146 :wq!