terraform init

Used for initializing working directories, including loading provider, backend, and module blocks. You can run this command repetitively in the same working directory.

$ terraform init​
​
Initializing the backend...​
​
Initializing provider plugins...​
- Finding latest version of volcengine/volcengine...​
- Installing volcengine/volcengine v1.0.0...​
​
The following providers do not have any version constraints in configuration,​
so the latest version was installed.​
​
To prevent automatic upgardes to new major versions that may contain breaking​
changes, we recommend adding version constraints in a required_providers block​
in your configuration, with the constraint strings suggested below.​
​
* volcengine/volcengine: version = "~> 1.0.0"​
​
Terraform has been successfully initialized!​

terraform plan

Used for creating preparatory plans. Before running the terraform apply command, you must run this command to preview the pending changes and verify whether they are as expected. That is, whether the attributes of the cloud resources differ from those in the state file.

If Terraform detects differences, it outputs the differences:

If Terraform does not detect any differences, it outputs the following information:

terraform apply

Used for creating or modifying resources. Before executing actions, a human-computer interaction is required to confirm resource creation and modification. You can run terraform apply -auto-approve to skip human-computer interaction and directly execute.

This command saves its running result to the terraform.tfstate file and displays the output variables of resources. Example:

terraform destroy

Used for deleting resources. Before executing actions, a human-computer interaction is required to confirm resource deletion. You can run terraform destroy -auto-approve to skip human-computer interaction and directly delete resources.

To delete a specific resource, use the following format: -target=<RESOURCE_TYPE>.<RESOURCE_NAME>.

terraform refresh

Used for refreshing the configurations of the state file. After you run this command, it calls the remote API to obtain the latest data and writes the results to the state file.

terraform show

Used for displaying all managed resources and their attribute values in the state file.

terraform output

Used for displaying the output variables in the current configuration. This command outputs the output variables defined in the configuration one by one. The format is OUTPUT_VARIABLE_NAME = OUTPUT_VARIABLE_VALUE.