Update

11-modules-target/README.md

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+%title: Terraform
+%author: Hubetr
+
+# Terraform : modules - introduction
+
+<br>
+
+* problem de null_resource > impossible de gérer la dépendance
+
+<br>
+
+* utilisation de l'option target
+```
+terraform apply -target=module.docker
+terraform apply -target=module.postgres
+```
+

11-modules-target/main.tf

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+variable "ssh_host" {}
+variable "ssh_user" {}
+variable "ssh_key" {}
+
+module "install" {
+  source        = "./modules/install_docker"
+  ssh_host      = var.ssh_host
+  ssh_key       = var.ssh_key
+  ssh_user      = var.ssh_user
+}
+module "docker" {
+  source        = "./modules/docker"
+  ssh_host      = var.ssh_host
+}

11-modules-target/modules/install_docker/main.tf

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+resource "null_resource" "ssh_target" {
+  connection {
+    type        = "ssh"
+    user        = var.ssh_user
+    host        = var.ssh_host
+    private_key = file(var.ssh_key)
+  }
+  provisioner "remote-exec" {
+    inline = [
+      "sudo apt update -qq >/dev/null",
+      "curl -fsSL https://get.docker.com -o get-docker.sh",
+      "sudo chmod 755 get-docker.sh",
+      "sudo ./get-docker.sh >/dev/null"
+    ]
+  }
+  provisioner "file" {
+    source      = "${path.module}/startup-options.conf"
+    destination = "/tmp/startup-options.conf"
+  }
+  provisioner "remote-exec" {
+    inline = [
+      "sudo mkdir -p /etc/systemd/system/docker.service.d/",
+      "sudo cp /tmp/startup-options.conf /etc/systemd/system/docker.service.d/startup_options.conf",
+      "sudo systemctl daemon-reload",
+      "sudo systemctl restart docker",
+      "sudo usermod -aG docker vagrant"
+    ]
+  }
+}

11-modules-target/modules/install_docker/startup-options.tf

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+[Service]
+ExecStart=
+ExecStart=/usr/bin/dockerd -H tcp://192.168.21.103:2375 -H unix:///var/run/docker.sock
+

11-modules-target/modules/install_docker/variables.tf

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+variable "ssh_host" {}
+variable "ssh_user" {}
+variable "ssh_key" {}
+

11-modules-target/modules/run_docker/main.tf

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+provider "docker" {
+  host = "tcp://${var.ssh_host}:2375"
+}
+
+resource "docker_image" "nginx" {
+  name = "nginx:latest"
+}
+resource "docker_container" "nginx" {
+  image = docker_image.nginx.latest
+  name  = "enginecks"
+  ports {
+    internal = 80
+    external = 80
+  }
+}
+

11-modules-target/modules/run_docker/variables.tf

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+variable "ssh_host" {}

11-modules-target/terraform.tfvars

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+ssh_host        = "10.0.4.103"
+ssh_user        = "vagrant"
+ssh_key         = "/home/vagrant/.ssh/id_rsa"