General Updates

cloudflare/main.tf

@@ -25,7 +25,7 @@ resource "cloudflare_record" "home-wildcard" {
 resource "cloudflare_record" "internet" {
   domain = "${var.domain}"
   name   = "@"
-  value  = "${var.ips["static"]}"
+  value  = "${var.droplet_ip}"
   type   = "A"
 }
 
@@ -37,6 +37,22 @@ resource "cloudflare_record" "internet-wildcard" {
   ttl    = 3600
 }
 
+resource "cloudflare_record" "dns" {
+  domain = "${var.domain}"
+  name   = "dns"
+  value  = "${var.ips["static"]}"
+  type   = "A"
+}
+
+resource "cloudflare_record" "doh" {
+  domain = "${var.domain}"
+  name   = "doh"
+  value  = "${var.ips["static"]}"
+  type   = "A"
+}
+
+// This ensures that _acme-challenge is not a CNAME
+// alongside the above wildcard CNAME entry.
 resource "cloudflare_record" "acme-no-cname-1" {
   domain = "${var.domain}"
   name   = "_acme-challenge.${var.domain}"

cloudflare/variables.tf

@@ -5,3 +5,5 @@ variable "domain" {
 variable "ips" {
   type = "map"
 }
+
+variable "droplet_ip" {}

digitalocean/droplets.tf

@@ -2,11 +2,13 @@ resource "digitalocean_droplet" "sydney" {
   image              = ""
   name               = "sydney.captnemo.in"
   region             = "blr1"
-  size               = "1gb"
+  size               = "s-1vcpu-2gb"
   ipv6               = true
   private_networking = true
   resize_disk        = true
 
+  volume_ids = ["eae03502-9279-11e8-ab31-0242ac11470b"]
+
   tags = [
     "bangalore",
     "proxy",
@@ -14,3 +16,7 @@ resource "digitalocean_droplet" "sydney" {
     "vpn",
   ]
 }
+
+output "droplet_ipv4" {
+  value = "${digitalocean_droplet.sydney.ipv4_address}"
+}

main.tf

@@ -2,6 +2,8 @@ module "cloudflare" {
   source = "cloudflare"
   domain = "bb8.fun"
   ips    = "${var.ips}"
+
+  droplet_ip = "${module.digitalocean.droplet_ipv4}"
 }
 
 module "docker" {

monitoring/cadvisor.tf

@@ -1,47 +1,56 @@
-resource "docker_container" "cadvisor" {
+module "cadvisor" {
+  source = "../modules/container"
   name   = "cadvisor"
-  image  = "${docker_image.cadvisor.latest}"
-  memory = 512
+  image  = "google/cadvisor:latest"
+
+  resource {
+    memory      = 512
+    memory_swap = 512
+  }
 
   restart               = "unless-stopped"
   destroy_grace_seconds = 10
   must_run              = true
 
-  volumes {
-    host_path      = "/sys"
-    container_path = "/sys"
-    read_only      = true
-  }
-
-  volumes {
-    host_path      = "/"
-    container_path = "/rootfs"
-    read_only      = true
-  }
-
-  volumes {
-    host_path      = "/var/lib/docker"
-    container_path = "/var/lib/docker"
-    read_only      = true
+  volumes = [
+    {
+      host_path      = "/sys"
+      container_path = "/sys"
+      read_only      = true
+    },
+    {
+      host_path      = "/"
+      container_path = "/rootfs"
+      read_only      = true
+    },
+    {
+      host_path      = "/var/lib/docker"
+      container_path = "/var/lib/docker"
+      read_only      = true
+    },
+    {
+      host_path      = "/dev/disk"
+      container_path = "/dev/disk"
+      read_only      = true
+    },
+    {
+      host_path      = "/var/run"
+      container_path = "/var/run"
+    },
+  ]
+
+  networks_advanced = [
+    {
+      name = "traefik"
+    },
+    {
+      name = "monitoring"
+    },
+  ]
+
+  web {
+    expose = true
+    port   = 8080
+    auth   = true
   }
-
-  volumes {
-    host_path      = "/dev/disk"
-    container_path = "/dev/disk"
-    read_only      = true
-  }
-
-  volumes {
-    host_path      = "/var/run"
-    container_path = "/var/run"
-  }
-
-  networks = ["${var.traefik-network-id}", "${docker_network.monitoring.id}"]
-
-  labels = "${merge(
-    var.traefik-labels, map(
-      "traefik.port", 8080,
-      "traefik.frontend.rule","Host:cadvisor.${var.domain}",
-      "traefik.frontend.auth.basic", "${var.basic_auth}"
-  ))}"
 }

monitoring/config/prometheus.yml

@@ -1,44 +1,44 @@
 global:
   scrape_interval: 15s
   external_labels:
-    monitor: 'docker-monitor'
+    monitor: "docker-monitor"
 
 scrape_configs:
-  - job_name: 'prometheus'
+  - job_name: "prometheus"
     static_configs:
-      - targets: ['localhost:9090']
+      - targets: ["localhost:9090"]
 
-  - job_name: 'node'
+  - job_name: "node"
     scrape_interval: 5s
     static_configs:
-      - targets: ['nodeexporter:9100']
+      - targets: ["nodeexporter:9100"]
 
-  - job_name: 'cadvisor'
+  - job_name: "cadvisor"
     scrape_interval: 5s
     static_configs:
-      - targets: ['cadvisor:8080']
+      - targets: ["cadvisor:8080"]
 
-  - job_name: 'speedtest'
+  - job_name: "speedtest"
     scrape_interval: 15m
     scrape_timeout: 2m
     static_configs:
-      - targets: ['speedtest.docker:9696']
+      - targets: ["speedtest:9696"]
 
-  - job_name: 'docker'
+  - job_name: "docker"
     scrape_interval: 5s
     static_configs:
-      - targets: ['192.168.1.111:1337']
+      - targets: ["192.168.1.111:1337"]
 
-  - job_name: 'traefik'
+  - job_name: "traefik"
     scrape_interval: 5s
     static_configs:
-      - targets: ['192.168.1.111:1111']
+      - targets: ["192.168.1.111:1111"]
 
-  - job_name: 'act'
+  - job_name: "act"
     scrape_interval: 15m
     scrape_timeout: 1m
     static_configs:
-      - targets: ['act-exporter.docker:3000']
+      - targets: ["act-exporter.docker:3000"]
 
 rule_files:
-  - 'alert.rules'
+  - "alert.rules"

monitoring/data.tf

@@ -1,19 +1,3 @@
-data "docker_registry_image" "grafana" {
-  name = "grafana/grafana:latest"
-}
-
 data "docker_registry_image" "prometheus" {
   name = "prom/prometheus:latest"
 }
-
-data "docker_registry_image" "nodeexporter" {
-  name = "prom/node-exporter:latest"
-}
-
-data "docker_registry_image" "cadvisor" {
-  name = "google/cadvisor:latest"
-}
-
-data "docker_registry_image" "speedtest" {
-  name = "captn3m0/speedtest-exporter:alpine"
-}

monitoring/grafana.tf

@@ -1,22 +1,31 @@
-resource "docker_container" "grafana" {
-  name  = "grafana"
-  image = "${docker_image.grafana.latest}"
+# resource "docker_container" "grafana" {
+module "grafana" {
+  name   = "grafana"
+  source = "../modules/container"
+  image  = "grafana/grafana:latest"
 
   // grafana:grafana
   user = "984:982"
 
-  labels = "${merge(
-    var.traefik-labels, map(
-      "traefik.port", 3000,
-      "traefik.frontend.rule","Host:grafana.${var.domain}"
-  ))}"
+  web {
+    port   = 3000
+    host   = "grafana.${var.domain}"
+    expose = true
+  }
 
-  volumes {
+  volumes = [{
     host_path      = "/mnt/xwing/data/grafana"
     container_path = "/var/lib/grafana"
-  }
+  }]
 
-  networks = ["${var.traefik-network-id}", "${docker_network.monitoring.id}"]
+  networks_advanced = [
+    {
+      name = "traefik"
+    },
+    {
+      name = "monitoring"
+    },
+  ]
 
   env = [
     "GF_SERVER_ROOT_URL=https://grafana.${var.domain}",

monitoring/images.tf

@@ -1,28 +1,8 @@
-resource "docker_image" "grafana" {
-  name          = "${data.docker_registry_image.grafana.name}"
-  pull_triggers = ["${data.docker_registry_image.grafana.sha256_digest}"]
-}
-
 resource "docker_image" "prometheus" {
   name          = "${data.docker_registry_image.prometheus.name}"
   pull_triggers = ["${data.docker_registry_image.prometheus.sha256_digest}"]
 }
 
-resource "docker_image" "nodeexporter" {
-  name          = "${data.docker_registry_image.nodeexporter.name}"
-  pull_triggers = ["${data.docker_registry_image.nodeexporter.sha256_digest}"]
-}
-
-resource "docker_image" "cadvisor" {
-  name          = "${data.docker_registry_image.cadvisor.name}"
-  pull_triggers = ["${data.docker_registry_image.cadvisor.sha256_digest}"]
-}
-
-resource "docker_image" "speedtest" {
-  name          = "${data.docker_registry_image.speedtest.name}"
-  pull_triggers = ["${data.docker_registry_image.speedtest.sha256_digest}"]
-}
-
 resource "docker_image" "act-exporter" {
   name          = "${data.docker_registry_image.act-exporter.name}"
   pull_triggers = ["${data.docker_registry_image.act-exporter.sha256_digest}"]

monitoring/main.tf

@@ -1 +0,0 @@
-

monitoring/nodeexporter.tf

@@ -1,28 +1,28 @@
-resource "docker_container" "nodeexporter" {
-  name  = "nodeexporter"
-  image = "${docker_image.nodeexporter.latest}"
+module "nodeexporter" {
+  name   = "nodeexporter"
+  source = "../modules/container"
+  image  = "prom/node-exporter:latest"
 
-  volumes {
-    host_path      = "/proc"
-    container_path = "/host/proc"
-  }
-
-  volumes {
-    host_path      = "/sys"
-    container_path = "/host/sys"
-  }
-
-  volumes {
-    host_path      = "/"
-    container_path = "/rootfs"
-    read_only      = true
-  }
-
-  volumes {
-    host_path      = "/mnt/xwing"
-    container_path = "/host/mnt"
-    read_only      = true
-  }
+  volumes = [
+    {
+      host_path      = "/proc"
+      container_path = "/host/proc"
+    },
+    {
+      host_path      = "/sys"
+      container_path = "/host/sys"
+    },
+    {
+      host_path      = "/"
+      container_path = "/rootfs"
+      read_only      = true
+    },
+    {
+      host_path      = "/mnt/xwing"
+      container_path = "/host/mnt"
+      read_only      = true
+    },
+  ]
 
   command = [
     "--path.procfs=/host/proc",
@@ -30,7 +30,9 @@ resource "docker_container" "nodeexporter" {
     "--collector.filesystem.ignored-mount-points=\"^/(sys|proc|dev|host|etc)($$|/)\"",
   ]
 
-  networks = ["${docker_network.monitoring.id}"]
+  networks = [
+    "${docker_network.monitoring.id}",
+  ]
 
   restart               = "unless-stopped"
   destroy_grace_seconds = 10

monitoring/speedtest.tf

@@ -1,17 +1,25 @@
 # Transmission Exporter for speedtest results
 # https://hub.docker.com/r/stefanwalther/speedtest-exporter/
 # Built against Alpine: https://github.com/stefanwalther/speedtest-exporter/pull/7
-resource "docker_container" "speedtest" {
-  name  = "speedtest"
-  image = "${docker_image.speedtest.latest}"
 
-  networks_advanced {
-    name    = "monitoring"
-    aliases = ["speedtest", "speedtest.docker"]
-  }
+module "speedtest" {
+  name   = "speedtest"
+  image  = "captn3m0/speedtest-exporter:alpine"
+  source = "../modules/container"
+
+  networks_advanced = [
+    {
+      name    = "monitoring"
+      aliases = ["speedtest", "speedtest.docker"]
+    },
+    {
+      name = "bridge"
+    },
+  ]
 
-  networks_advanced {
-    name = "bridge"
+  resource {
+    memory      = 256
+    memory_swap = 256
   }
 
   restart               = "unless-stopped"

variables.tf

@@ -2,10 +2,11 @@ variable "ips" {
   type = "map"
 
   default = {
-    eth0   = "192.168.1.111"
-    tun0   = "10.8.0.14"
-    dovpn  = "10.8.0.1"
-    static = "139.59.48.222"
+    eth0    = "192.168.1.111"
+    tun0    = "10.8.0.14"
+    dovpn   = "10.8.0.1"
+    static  = "139.59.48.222"
+    droplet = "139.59.22.234"
   }
 }