62 lines
2.6 KiB
Markdown
62 lines
2.6 KiB
Markdown
---
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layout: "language"
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page_title: "Backend Type: cos"
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sidebar_current: "docs-backends-types-standard-cos"
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description: |-
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Terraform can store the state remotely, making it easier to version and work with in a team.
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---
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# COS
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**Kind: Standard (with locking)**
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Stores the state as an object in a configurable prefix in a given bucket on [Tencent Cloud Object Storage](https://intl.cloud.tencent.com/product/cos) (COS).
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This backend also supports [state locking](/docs/language/state/locking.html).
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~> **Warning!** It is highly recommended that you enable [Object Versioning](https://intl.cloud.tencent.com/document/product/436/19883)
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on the COS bucket to allow for state recovery in the case of accidental deletions and human error.
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## Example Configuration
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```hcl
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terraform {
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backend "cos" {
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region = "ap-guangzhou"
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bucket = "bucket-for-terraform-state-1258798060"
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prefix = "terraform/state"
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}
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}
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```
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This assumes we have a [COS Bucket](https://registry.terraform.io/providers/tencentcloudstack/tencentcloud/latest/docs/resources/cos_bucket) created named `bucket-for-terraform-state-1258798060`,
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Terraform state will be written into the file `terraform/state/terraform.tfstate`.
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## Data Source Configuration
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To make use of the COS remote state in another configuration, use the [`terraform_remote_state` data source](/docs/language/state/remote-state-data.html).
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```hcl
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data "terraform_remote_state" "foo" {
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backend = "cos"
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config = {
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region = "ap-guangzhou"
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bucket = "bucket-for-terraform-state-1258798060"
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prefix = "terraform/state"
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}
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}
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```
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## Configuration variables
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The following configuration options or environment variables are supported:
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* `secret_id` - (Optional) Secret id of Tencent Cloud. It supports environment variables `TENCENTCLOUD_SECRET_ID`.
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* `secret_key` - (Optional) Secret key of Tencent Cloud. It supports environment variables `TENCENTCLOUD_SECRET_KEY`.
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* `region` - (Optional) The region of the COS bucket. It supports environment variables `TENCENTCLOUD_REGION`.
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* `bucket` - (Required) The name of the COS bucket. You shall manually create it first.
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* `prefix` - (Optional) The directory for saving the state file in bucket. Default to "env:".
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* `key` - (Optional) The path for saving the state file in bucket. Defaults to `terraform.tfstate`.
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* `encrypt` - (Optional) Whether to enable server side encryption of the state file. If it is true, COS will use 'AES256' encryption algorithm to encrypt state file.
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* `acl` - (Optional) Object ACL to be applied to the state file, allows `private` and `public-read`. Defaults to `private`.
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