Traefik and HashiCorp Consul with terraform

 1logLevel = "INFO"
 2defaultEntryPoints = ["http", "https"]
 3
 4[consul]
 5  endpoint = "${consul_backend}"
 6  watch = true
 7  prefix = "${prefix}"
 8
 9[entryPoints]
10  [entryPoints.http]
11    address = ":80"
12  [entryPoints.https]
13    address = ":443"
14    [entryPoints.https.tls]
15
16[acme]
17  email = "it-is-me@example.com"
18  storage = "${prefix}/acme/account"
19  entryPoint = "https"
20  caServer = "https://acme-staging-v02.api.letsencrypt.org/directory"
21  [acme.httpChallenge]
22    entryPoint = "http"
23  [acme.dnsChallenge]
24    provider = "dnsimple"
25    delayBeforeCheck = 0
26[[acme.domains]]
27    main = "*.example.com"
28    sans = ["example.com"]

 1variable "traefik_version" {
 2  default = "v1.7.11"
 3}
 4variable "consul_version" {
 5  default = "1.5"
 6}
 7
 8variable "traefik_host" {
 9  default = "10.0.0.10"
10}
11variable "backend_host" {
12  default = "10.10.0.20"
13}
14
15variable "prefix" {
16  default = "traefik"
17}
18
19variable "consul_backend" {
20  default = "10.10.0.20:8500"
21}
22
23variable "domain" {
24  default = "example.com"
25}

 1
 2provider "docker" {
 3  host = "tcp://${var.backend_host}:2376/"
 4}
 5
 6resource "docker_image" "consul" {
 7  name = "consul:${var.consul_version}"
 8}
 9resource "docker_container" "consul" {
10
11  image    = "${docker_image.consul.latest}"
12  name     = "consul"
13  must_run = true
14  restart  = "always"
15
16  ports {
17    internal = 8500
18    external = 8500
19    protocol = "tcp"
20  }
21}

 1resource "docker_image" "whoami" {
 2  name = "jwilder/whoami"
 3}
 4resource "docker_container" "whoami" {
 5
 6  image    = "${docker_image.whoami.latest}"
 7  name     = "whoami"
 8  must_run = true
 9  restart  = "always"
10
11  ports {
12    internal = 8000
13    external = 8000
14    protocol = "tcp"
15  }
16}

 1provider "docker" {
 2  host = "tcp://${var.traefik_host}:2376/"
 3}
 4
 5data "template_file" "traefik_config" {
 6  template = "${file("templates/traefik.tpl")}"
 7
 8  vars {
 9    consul_backend = "${var.consul_backend}"
10    prefix         = "${var.prefix}"
11  }
12}
13
14resource "docker_container" "traefik" {
15  depends_on = ["consul_keys.whoami"]
16
17  image    = "${docker_image.traefik.latest}"
18  name     = "traefik_proxy"
19  must_run = true
20  restart  = "always"
21
22  ports {
23    internal = 80
24    external = 80
25    protocol = "tcp"
26  }
27
28  ports {
29    internal = 443
30    external = 443
31    protocol = "tcp"
32  }
33
34  upload {
35    content = "${join(",", data.template_file.traefik_config.*.rendered)}"
36    file    = "/etc/traefik/traefik.toml"
37  }
38
39  volumes {
40    host_path      = "/srv/traefik"
41    container_path = "/srv/"
42    read_only      = false
43  }
44}

 1resource "consul_keys" "whoami" {
 2  key {
 3    path  = "${var.prefix}/acme/account/"
 4    value = ""
 5  }
 6
 7  key {
 8    path  = "${var.prefix}/backends/whoami/servers/server1/url"
 9    value = "http://${var.backend_host}:8000/"
10  }
11
12  key {
13    path  = "${var.prefix}/backends/whoami/servers/server1/weight"
14    value = "10"
15  }
16
17  key {
18    path  = "${var.prefix}/frontends/frontend1/backend"
19    value = "whoami"
20  }
21
22  key {
23    path  = "${var.prefix}/frontends/frontend1/routes/whoami/rule"
24    value = "Host: whoami.${var.domain}"
25  }
26}