Distribuire le istanze con Terraform - Cronologia

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[[:fr:Deployer vos instances avec Terraform]][[fr:Deployer vos instances avec Terraform]]
 Il presente articolo è stato tradotto tramite un software di traduzione automatica. È possibile visualizzare l'origine articolo [[:fr:Deployer vos instances avec Terraform|qui]]. 
[[:pt:Implementar as suas instâncias com a Terraform]][[pt:Implementar as suas instâncias com a Terraform]]
[[:es:Despliegue de sus instancias con Terraform]][[es:Despliegue de sus instancias con Terraform]]
[[:en:Deploying your instances with Terraform]][[en:Deploying your instances with Terraform]]
== Descrizione ==

Vedremo come distribuire rapidamente una o più istanze di IKOULA One Cloud tramite lo strumento di infrastruttura come codice chiamato "Terraform".

Prima di tutto dovrai installare Terraform, se non l'hai già fatto, e avere un account IKOULA One Cloud.
Terraform è disponibile per la maggior parte dei sistemi operativi al seguente link: https://www.terraform.io/downloads.html

Terraform supporta dozzine di provider, una lista dei quali è disponibile sul loro sito web (https://www.terraform.io/docs/providers/).
Useremo il provider "Cloudstack" per distribuire su Cloud Ikoula One.

== Distribuire una singola istanza ==

Scriveremo il nostro primo file di configurazione Terraform che permette il deployment di una singola istanza di IKOULA Cloud:

Si tratta di un file di testo con estensione ".tf" (fate attenzione a non creare diversi file ".tf" nella vostra directory di lavoro o Terraform li caricherà tutti), useremo il formato classico di Terraform ma è anche possibile utilizzare una sintassi JSON.

Ecco il contenuto del nostro file Terraform da adattare con i vostri parametri:

'''Per la distribuzione di un'istanza nella zona di base''':

<pre>
provider "cloudstack" {
api_url = "https://cloudstack.ikoula.com/client/api"
api_key = "< Votre clé API de votre compte/utilisateur Cloud Ikoula One >"
secret_key = "< Votre clé secrète de votre compte/utilisateur Cloud Ikoula One>"
}

resource "cloudstack_instance" "< Nom de votre choix pour votre ressource >" {
zone = "< Nom de la zone basic Cloud Ikoula One de votre choix >"
service_offering = "< Nom de l'offre de calcul Cloud Ikoula One de votre choix > "
template = "< Nom du modèle Cloud Ikoula One de votre choix"
name = "< Nom de votre choix pour votre instance Cloud Ikoula One"
keypair = "< Nom de votre paire de clé SSH Cloud Ikoula One>"
expunge = "true"
security_group_ids = ["< ID de votre groupe de sécurité Cloud Ikoula One à utiliser >",]
}
</pre>

* '''Pour le déploiement d'une instance en zone avancée''' (avec création d'une règle de redirection de port, pour ssh dans cet exemple) :

<pre>
provider "cloudstack" {
api_url = "https://cloudstack.ikoula.com/client/api"
api_key = "< Votre clé API de votre compte/utilisateur Cloud Ikoula One >"
secret_key = "< Votre clé secrète de votre compte/utilisateur Cloud Ikoula One>"
}

resource "cloudstack_instance" "< Nom de votre choix pour votre ressource d'instance >" {
zone = "< Nom de la zone avancée/adv Cloud Ikoula One de votre choix >"
service_offering = "< Nom de l'offre de calcul Cloud Ikoula One de votre choix > "
template = "< Nom du modèle Cloud Ikoula One de votre choix"
name = "< Nom de votre choix pour votre instance Cloud Ikoula One"
keypair = "< Nom de votre paire de clé SSH Cloud Ikoula One>"
expunge = "true"
network_id = ["< ID de votre réseau d'invités Cloud Ikoula One à utiliser >",]
}

# Redirection de port (ici SSH)

resource "cloudstack_port_forward" "SshTerraformVM1" {
ip_address_id = "< ID de l'adresse ip NAT Source de votre réseau d'invités >"
forward {
protocol = "tcp"
private_port = "22"
public_port = "< port ssh publique de votre choix>"
virtual_machine_id = "${cloudstack_instance.< Nom que vous avez choisis au-dessus pour votre ressource d'instance >.id}"
}
}
</pre>

Note : la ligne 'expunge = "true"' nous permettra de supprimer notre instance lors de l'appel "terraform destroy".

Une fois votre fichier de configuration enregistré, nous allons initialiser Terraform puis l'appliquer :

<pre>
$ terraform init

Initializing provider plugins...

The following providers do not have any version constraints in configuration,
so the latest version was installed.

To prevent automatic upgrades to new major versions that may contain breaking
changes, it is recommended to add version = "..." constraints to the
corresponding provider blocks in configuration, with the constraint strings
suggested below.

* provider.cloudstack: version = "~> 0.1"

Terraform has been successfully initialized!

You may now begin working with Terraform. Try running "terraform plan" to see
any changes that are required for your infrastructure. All Terraform commands
should now work.

If you ever set or change modules or backend configuration for Terraform,
rerun this command to reinitialize your working directory. If you forget, other
commands will detect it and remind you to do so if necessary.
</pre>

Avant de lancer notre déploiement (ici en zone basic), nous pouvons vérifier ce qui sera exécuté sans rien appliquer via la commande :
#terraform plan

<pre>
$ terraform plan
Refreshing Terraform state in-memory prior to plan...
The refreshed state will be used to calculate this plan, but will not be
persisted to local or remote state storage.

------------------------------------------------------------------------

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
+ create

Terraform will perform the following actions:

+ cloudstack_instance.TerraformVM1
id: <computed>
display_name: <computed>
expunge: "true"
group: <computed>
ip_address: <computed>
keypair: "MY_SSH_KEYPAIR"
name: "TerraformVM1"
network_id: <computed>
project: <computed>
root_disk_size: <computed>
security_group_ids.#: "1"
security_group_ids.3260590242: "84be7eef7-4pne-51c6-9abf6f3f9-c4zoek90887"
service_offering: "t1.pico"
tags.%: <computed>
template: "Debian 9 - Minimal - 64bits"
zone: "US-FL-MIAMI02-Z2-BASIC"

Plan: 1 to add, 0 to change, 0 to destroy.

------------------------------------------------------------------------

Note: You didn't specify an "-out" parameter to save this plan, so Terraform
can't guarantee that exactly these actions will be performed if
"terraform apply" is subsequently run.
</pre>

Si c'est bien ce que nous voulons faire alors nous pouvons appliquer via la commande "terraform apply" et saisir "yes" pour confirmer quand cela nous est demandé :

<pre>
$ terraform apply

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
+ create

Terraform will perform the following actions:

+ cloudstack_instance.TerraformVM1
id: <computed>
display_name: <computed>
expunge: "true"
group: <computed>
ip_address: <computed>
keypair: "MY_SSH_KEYPAIR"
name: "TerraformVM1"
network_id: <computed>
project: <computed>
root_disk_size: <computed>
security_group_ids.#: "1"
security_group_ids.3260590242: "84be7eef7-4pne-51c6-9abf6f3f9-c4zoek90887"
service_offering: "t1.pico"
tags.%: <computed>
template: "Debian 9 - Minimal - 64bits"
zone: "US-FL-MIAMI02-Z2-BASIC"

Plan: 1 to add, 0 to change, 0 to destroy.

Do you want to perform these actions?
Terraform will perform the actions described above.
Only 'yes' will be accepted to approve.

Enter a value: yes

cloudstack_instance.TerraformVM1: Creating...
display_name: "" => "<computed>"
expunge: "" => "true"
group: "" => "<computed>"
ip_address: "" => "<computed>"
keypair: "" => "MY_SSH_KEYPAIR"
name: "" => "TerraformVM1"
network_id: "" => "<computed>"
project: "" => "<computed>"
root_disk_size: "" => "<computed>"
security_group_ids.#: "" => "1"
security_group_ids.3260590242: "" => "84be7eef7-4pne-51c6-9abf6f3f9-c4zoek90887"
service_offering: "" => "t1.pico"
tags.%: "" => "<computed>"
template: "" => "Debian 9 - Minimal - 64bits"
zone: "" => "US-FL-MIAMI02-Z2-BASIC"
cloudstack_instance.TerraformVM1: Still creating... (10s elapsed)
cloudstack_instance.TerraformVM1: Still creating... (20s elapsed)
cloudstack_instance.TerraformVM1: Still creating... (30s elapsed)
cloudstack_instance.TerraformVM1: Still creating... (40s elapsed)
cloudstack_instance.TerraformVM1: Creation complete after 46s (ID: ba1220fc-b777-48e2-b63a-5d21ccc930ba)

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.
</pre>

Ici nous venons de déployer en quelques secondes, une instance nommée "TerraformVM1" avec le modèle "Debian 9 - Minimal - 64bits" dans la zone basic "US-FL-MIAMI02-Z2-BASIC" avec l'offre de calcul "t1.pico".

Nous pouvons voir celle-ci depuis notre interface Cloud Ikoula One :

[[File:wiki_terraform_1.png]]

Nous pouvons nous connecter sur notre instance fraichement déployée.
Note : Pour que cela fonctionne il faut que le [https://fr-wiki.ikoula.com/fr/Deploiement_d%27une_instance_en_zone_basic_(cliquez_pour_lire_la_suite)#Introduction_aux_groupes_de_s.C3.A9curit.C3.A9 gruppo di sicurezza] dans lequel nous avons déployé le permette, sinon il faudra y rajouter une règle autorisant la connexion.

<pre>
$ ssh -i MY_SSH_KEYPAIR root@38.93.X.X
The authenticity of host '38.93.X.X (38.93.X.X)' can't be established.
ECDSA key fingerprint is SHA256:4D7s+xxxXXXXxxxxXXXXXXXXXxxxxXXXXXxxXXXXxxXXXxxx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '38.93.X.X' (ECDSA) to the list of known hosts.
Linux TerraformVM1 4.9.0-8-amd64 #1 SMP Debian 4.9.110-3+deb9u4 (2018-08-21) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@TerraformVM1:~#
</pre>

Pour supprimer notre instance, il nous suffira d'exécuter la commande "terraform destroy" et valider en saisissant "yes" quand cela nous est demandé :

<pre>
$ terraform destroy
cloudstack_instance.TerraformVM1: Refreshing state... (ID: ba1220fc-b777-48e2-b63a-5d21ccc930ba)

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
- destroy

Terraform will perform the following actions:

- cloudstack_instance.TerraformVM1

Plan: 0 to add, 0 to change, 1 to destroy.

Do you really want to destroy?
Terraform will destroy all your managed infrastructure, as shown above.
There is no undo. Only 'yes' will be accepted to confirm.

Enter a value: yes

cloudstack_instance.TerraformVM1: Destroying... (ID: ba1220fc-b777-48e2-b63a-5d21ccc930ba)
cloudstack_instance.TerraformVM1: Still destroying... (ID: ba1220fc-b777-48e2-b63a-5d21ccc930ba, 10s elapsed)
cloudstack_instance.TerraformVM1: Destruction complete after 15s

Destroy complete! Resources: 1 destroyed.
</pre>

[[Catégorie :Cloudstack]]
[[Catégorie :Cloud public]]
[[Catégorie :Cloud]]

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 <span data-link_translate_es_title="Despliegue de sus instancias con Terraform"  data-link_translate_es_url="Despliegue de sus instancias con Terraform"></span>[[:es:Despliegue de sus instancias con Terraform]][[es:Despliegue de sus instancias con Terraform]]
 <span data-link_translate_en_title="Deploying your instances with Terraform"  data-link_translate_en_url="Deploying your instances with Terraform"></span>[[:en:Deploying your instances with Terraform]][[en:Deploying your instances with Terraform]]
 == Descrizione ==

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	<span data-link_translate_ru_title="Развертывание ваших экземпляров с помощью Terraform" data-link_translate_ru_url="Развертывание ваших экземпляров с помощью Terraform"></span>[[:ru:Развертывание ваших экземпляров с помощью Terraform]][[ru:Развертывание ваших экземпляров с помощью Terraform]]		<span data-link_translate_ru_title="Развертывание ваших экземпляров с помощью Terraform" data-link_translate_ru_url="Развертывание ваших экземпляров с помощью Terraform"></span>[[:ru:Развертывание ваших экземпляров с помощью Terraform]][[ru:Развертывание ваших экземпляров с помощью Terraform]]
	<span data-link_translate_pl_title="Wdrażanie instancji za pomocą Terraform" data-link_translate_pl_url="Wdrażanie instancji za pomocą Terraform"></span>[[:pl:Wdrażanie instancji za pomocą Terraform]][[pl:Wdrażanie instancji za pomocą Terraform]]		<span data-link_translate_pl_title="Wdrażanie instancji za pomocą Terraform" data-link_translate_pl_url="Wdrażanie instancji za pomocą Terraform"></span>[[:pl:Wdrażanie instancji za pomocą Terraform]][[pl:Wdrażanie instancji za pomocą Terraform]]

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	<span data-link_translate_pl_title="Wdrażanie instancji za pomocą Terraform" data-link_translate_pl_url="Wdrażanie instancji za pomocą Terraform"></span>[[:pl:Wdrażanie instancji za pomocą Terraform]][[pl:Wdrażanie instancji za pomocą Terraform]]		<span data-link_translate_pl_title="Wdrażanie instancji za pomocą Terraform" data-link_translate_pl_url="Wdrażanie instancji za pomocą Terraform"></span>[[:pl:Wdrażanie instancji za pomocą Terraform]][[pl:Wdrażanie instancji za pomocą Terraform]]
	<span data-link_translate_ja_title="Terraformによるインスタンスのデプロイ" data-link_translate_ja_url="Terraformによるインスタンスのデプロイ"></span>[[:ja:Terraformによるインスタンスのデプロイ]][[ja:Terraformによるインスタンスのデプロイ]]		<span data-link_translate_ja_title="Terraformによるインスタンスのデプロイ" data-link_translate_ja_url="Terraformによるインスタンスのデプロイ"></span>[[:ja:Terraformによるインスタンスのデプロイ]][[ja:Terraformによるインスタンスのデプロイ]]

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	<span data-link_translate_ja_title="Terraformによるインスタンスのデプロイ" data-link_translate_ja_url="Terraformによるインスタンスのデプロイ"></span>[[:ja:Terraformによるインスタンスのデプロイ]][[ja:Terraformによるインスタンスのデプロイ]]		<span data-link_translate_ja_title="Terraformによるインスタンスのデプロイ" data-link_translate_ja_url="Terraformによるインスタンスのデプロイ"></span>[[:ja:Terraformによるインスタンスのデプロイ]][[ja:Terraformによるインスタンスのデプロイ]]
	<span data-link_translate_zh_title="用Terraform部署你的实例" data-link_translate_zh_url="用Terraform部署你的实例"></span>[[:zh:用Terraform部署你的实例]][[zh:用Terraform部署你的实例]]		<span data-link_translate_zh_title="用Terraform部署你的实例" data-link_translate_zh_url="用Terraform部署你的实例"></span>[[:zh:用Terraform部署你的实例]][[zh:用Terraform部署你的实例]]

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	<span data-link_translate_zh_title="用Terraform部署你的实例" data-link_translate_zh_url="用Terraform部署你的实例"></span>[[:zh:用Terraform部署你的实例]][[zh:用Terraform部署你的实例]]		<span data-link_translate_zh_title="用Terraform部署你的实例" data-link_translate_zh_url="用Terraform部署你的实例"></span>[[:zh:用Terraform部署你的实例]][[zh:用Terraform部署你的实例]]
	<span data-link_translate_de_title="Bereitstellen Ihrer Instanzen mit Terraform" data-link_translate_de_url="Bereitstellen Ihrer Instanzen mit Terraform"></span>[[:de:Bereitstellen Ihrer Instanzen mit Terraform]][[de:Bereitstellen Ihrer Instanzen mit Terraform]]		<span data-link_translate_de_title="Bereitstellen Ihrer Instanzen mit Terraform" data-link_translate_de_url="Bereitstellen Ihrer Instanzen mit Terraform"></span>[[:de:Bereitstellen Ihrer Instanzen mit Terraform]][[de:Bereitstellen Ihrer Instanzen mit Terraform]]

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	<span data-link_translate_de_title="Bereitstellen Ihrer Instanzen mit Terraform" data-link_translate_de_url="Bereitstellen Ihrer Instanzen mit Terraform"></span>[[:de:Bereitstellen Ihrer Instanzen mit Terraform]][[de:Bereitstellen Ihrer Instanzen mit Terraform]]		<span data-link_translate_de_title="Bereitstellen Ihrer Instanzen mit Terraform" data-link_translate_de_url="Bereitstellen Ihrer Instanzen mit Terraform"></span>[[:de:Bereitstellen Ihrer Instanzen mit Terraform]][[de:Bereitstellen Ihrer Instanzen mit Terraform]]
	<span data-link_translate_nl_title="Je instances uitrollen met Terraform" data-link_translate_nl_url="Je instances uitrollen met Terraform"></span>[[:nl:Je instances uitrollen met Terraform]][[nl:Je instances uitrollen met Terraform]]		<span data-link_translate_nl_title="Je instances uitrollen met Terraform" data-link_translate_nl_url="Je instances uitrollen met Terraform"></span>[[:nl:Je instances uitrollen met Terraform]][[nl:Je instances uitrollen met Terraform]]

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	<span data-link_translate_fr_title="Deployer vos instances avec Terraform" data-link_translate_fr_url="Deployer vos instances avec Terraform"></span>[[:fr:Deployer vos instances avec Terraform]][[fr:Deployer vos instances avec Terraform]]		<span data-link_translate_fr_title="Deployer vos instances avec Terraform" data-link_translate_fr_url="Deployer vos instances avec Terraform"></span>[[:fr:Deployer vos instances avec Terraform]][[fr:Deployer vos instances avec Terraform]]