Difference between revisions of "User data"

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{{lc}}
 
{{lc}}
<code>user_data</code> (Optional) [[user data]] to provide when [[launching]] the instance, [[such as shell scripts]].
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<code>user_data</code> (optional) user data to provide when [[launching]] the instance, such as [[shell scripts]].
* Notes: Do not pass gzip-compressed data via this argument; see <code>[[user_data_base64]]</code> instead. Updates to this field will trigger a stop/start of the EC2 instance by default. If the <code>[[user_data_replace_on_change]]</code> is set then updates to this field will trigger a destroy and recreate
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 +
  user_data                  = [[templatefile]]("${[[path.module]]}/assets/your_instance_data[[.tftpl]]", {})
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 +
 
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  user_data = templatefile("${path.module}/path/yourfile.tftpl", {
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    ecs_cluster            = aws_ecs_cluster.your_cluster.name
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    [[ecs_instance_attribute]] = var.ecs_instance_attribute
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  })
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 +
Important notes:
 +
* Updates to this field will trigger a [[stop]]/[[start]] of the [[EC2]] instance by default.
 +
* Do not pass [[gzip]]-compressed data via this argument; see <code>[[user_data_base64]]</code> instead.  
 +
* If the <code>[[user_data_replace_on_change]]</code> is set then updates to this field will trigger a destroy and recreate
  
 
* https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/instance#user_data
 
* https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/instance#user_data
  
  
 
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[[lifecycle]] {
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  [[ignore_changes]] = [user_data]
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  }
  
 
== Related ==
 
== Related ==
* <code>[[aws_instance]]</code>
 
 
* <code>[[templatefile]], *.[[tftpl]]</code>
 
* <code>[[templatefile]], *.[[tftpl]]</code>
* <code>[[key_name]]</code>
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* <code>{{aws_instance}}</code>
 
* <code>http://[[169.254.169.254]]/latest/user-data</code>
 
* <code>http://[[169.254.169.254]]/latest/user-data</code>
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* https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-add-user-data.html
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* <code>[[/var/lib/cloud/instance/user-data.txt]]</code>
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* <code>[[root_block_device]]</code>
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* <code>[[user_data_replace_on_change]]</code>
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* [[Cloud-init]]: <code>[[/var/log/cloud-init.log]]</code>, <code>[[/var/log/cloud-init-output.log]]</code>
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* [[aws_volume_attachment]]
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* [[Terraform lifecycle meta-argument]]
  
 
== See also ==
 
== See also ==
 +
* {{user_data}}
 +
* {{cloud-init}}
 
* {{aws_instance}}
 
* {{aws_instance}}
* {{terraform aws resources}}
 
  
 
[[Category:Terraform]]
 
[[Category:Terraform]]

Latest revision as of 10:31, 27 June 2023

user_data (optional) user data to provide when launching the instance, such as shell scripts.

  user_data                   = templatefile("${path.module}/assets/your_instance_data.tftpl", {})


 user_data = templatefile("${path.module}/path/yourfile.tftpl", {
   ecs_cluster            = aws_ecs_cluster.your_cluster.name
   ecs_instance_attribute = var.ecs_instance_attribute
 })


Important notes:


lifecycle {
  ignore_changes = [user_data]
 }

Related[edit]

See also[edit]

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