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Terraform : Linking Oracle Cloud Interface (OCI) Terraform Modules Together

This article demonstrates how to link Oracle Cloud Interface (OCI) Terraform modules together to deploy infrastructure.

Related articles.

Introduction

In previous articles we've discussed how to build individual pieces of OCI infrastructure using Terraform.

The rest of this article assumes you have worked through these articles and have created the relevant files.

Typically we would expect to create a whole system with a single definition, but that's not quite as simple as combining the above definitions due to dependencies. We may require information about a parent component before we can build the child component. In this article we'll demonstrate this by creating a new compartment, containing a VCN and an autonomous database. Both the VCN and the database need the ID of the compartment before they can be created. In the individual articles we provided this as an input parameter, but we don't know the compartment ID until it's created, so we need to reference the compartment ID in the dependent resources.

Setup

We start by creating a new working directory.

mkdir \git\oraclebase\terraform\oci\oci_full_adb
cd \git\oraclebase\terraform\oci\oci_full_adb

We copy in the "*.tf" and "*.tfvars" scripts for the provider and the individual components as our starting point.

copy \git\oraclebase\terraform\oci\oci_provider\*.tf .
copy \git\oraclebase\terraform\oci\oci_provider\*.tfvars .

copy \git\oraclebase\terraform\oci\oci_compartment\*.tf .
copy \git\oraclebase\terraform\oci\oci_compartment\*.tfvars .

copy \git\oraclebase\terraform\oci\oci_vcn\*.tf .
copy \git\oraclebase\terraform\oci\oci_vcn\*.tfvars .

copy \git\oraclebase\terraform\oci\oci_adb\*.tf .
copy \git\oraclebase\terraform\oci\oci_adb\*.tfvars .

Now we need to amend the scripts to make sure the dependencies are taken care of. The provider and compartment scripts will work without amendments, as there are no dependencies to worry about.

The outputs in the "oci_compartment.tf" script include the following definition. The text in bold is important because that will return the ID of the compartment once we build it. We can use this in dependent scripts to populate the compartment_id setting.

output "compartment_id" {
  value = oci_identity_compartment.tf_compartment.id
}

Amend the VCN Files

The VCN is a child of the compartment, so we need to source the ID of the compartment we are building. Edit the "oci_vcn.tf" file. It's a large file, so well describe the changes that need to be made.

Remove the compartment_id variable definition.

#variable "compartment_id" { type = string }

Set all references to the compartment_id by referencing the oci_identity_compartment.tf_compartment.id output variable from the compartment build. There are several references to amend. One for the module, and one for each resource definition.

compartment_id           = oci_identity_compartment.tf_compartment.id

We need to remove the compartment_id setting from the "oci_vcn_variables.auto.tfvars" file.

#compartment_id   = "ocid1.compartment.oc1..aaaaaaaa..."
vcn_display_name = "obvcn3"
vcn_dns_label    = "obvcn3"

Amend the Autonomous Database Files

The autonomous database is a child of the compartment, so we need to source the ID of the compartment we are building. Edit the "oci_adb.tf" file. The changes are in bold.

# Variables
#variable "compartment_id" { type = string }
variable "db_name"        { type = string }
variable "admin_password" { type = string }
variable "db_version"     { type = string }
# OLTP, DW, AJD, APEX
variable "db_workload"    { type = string }
# Must be false for AJD and APEX
variable "is_free_tier"   { type = string }
# BRING_YOUR_OWN_LICENSE or LICENSE_INCLUDED
variable "license_model"  { type = string }

variable "cpu_core_count" {
  type    = number
  default = 1
}

variable "data_storage_size_in_tbs" {
  type    = number
  default = 1
}


# Resources
resource "oci_database_autonomous_database" "tf_adb" {
  #compartment_id           = var.compartment_id
  compartment_id           = oci_identity_compartment.tf_compartment.id
  cpu_core_count           = var.cpu_core_count
  data_storage_size_in_tbs = var.data_storage_size_in_tbs
  db_name                  = var.db_name
  admin_password           = var.admin_password
  db_version               = var.db_version
  db_workload              = var.db_workload
  display_name             = var.db_name
  is_free_tier             = var.is_free_tier
  license_model            = var.license_model
}


# Outputs
output "db_name" {
  value = oci_database_autonomous_database.tf_adb.display_name
}

output "db_state" {
  value = oci_database_autonomous_database.tf_adb.state
}

We've removed the compartment_id input variable, and set the compartment_id in the resource by referencing the oci_identity_compartment.tf_compartment.id output variable from the compartment build.

We need to remove the compartment_id setting from the "oci_adb_variables.auto.tfvars" file.

#compartment_id = "ocid1.compartment.oc1..aaaaaaaa..."
db_name        = "obadw3"
admin_password = "MyStrongPassword123"
db_version     = "21c"
# OLTP, DW, AJD, APEX
db_workload    = "DW"
# Must be false for AJD and APEX
is_free_tier   = "true"
license_model  = "LICENSE_INCLUDED"

Build the Infrastructure

Initialize the working directory using the terraform init command.

terraform init

Use the terraform plan command to test the execution plan.

terraform plan

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:

  # oci_core_dhcp_options.tf_dhcp_options will be created
  + resource "oci_core_dhcp_options" "tf_dhcp_options" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "default-dhcp-options"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + options {
          + custom_dns_servers  = []
          + search_domain_names = (known after apply)
          + server_type         = "VcnLocalPlusInternet"
          + type                = "DomainNameServer"
        }
    }

  # oci_core_security_list.tf_private_security_list will be created
  + resource "oci_core_security_list" "tf_private_security_list" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "security-list-for-private-subnet"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + egress_security_rules {
          + description      = (known after apply)
          + destination      = "0.0.0.0/0"
          + destination_type = "CIDR_BLOCK"
          + protocol         = "all"
          + stateless        = false
        }

      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = -1
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = 4
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 22
              + min = 22
            }
        }
    }

  # oci_core_security_list.tf_public_security_list will be created
  + resource "oci_core_security_list" "tf_public_security_list" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "security-list-for-public-subnet"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + egress_security_rules {
          + description      = (known after apply)
          + destination      = "0.0.0.0/0"
          + destination_type = "CIDR_BLOCK"
          + protocol         = "all"
          + stateless        = false
        }

      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = -1
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = 4
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 1522
              + min = 1521
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 22
              + min = 22
            }
        }
    }

  # oci_core_subnet.tf_vcn_private_subnet will be created
  + resource "oci_core_subnet" "tf_vcn_private_subnet" {
      + availability_domain        = (known after apply)
      + cidr_block                 = "10.0.1.0/24"
      + compartment_id             = (known after apply)
      + defined_tags               = (known after apply)
      + dhcp_options_id            = (known after apply)
      + display_name               = "private-subnet"
      + dns_label                  = (known after apply)
      + freeform_tags              = (known after apply)
      + id                         = (known after apply)
      + ipv6cidr_block             = (known after apply)
      + ipv6public_cidr_block      = (known after apply)
      + ipv6virtual_router_ip      = (known after apply)
      + prohibit_public_ip_on_vnic = (known after apply)
      + route_table_id             = (known after apply)
      + security_list_ids          = (known after apply)
      + state                      = (known after apply)
      + subnet_domain_name         = (known after apply)
      + time_created               = (known after apply)
      + vcn_id                     = (known after apply)
      + virtual_router_ip          = (known after apply)
      + virtual_router_mac         = (known after apply)
    }

  # oci_core_subnet.tf_vcn_public_subnet will be created
  + resource "oci_core_subnet" "tf_vcn_public_subnet" {
      + availability_domain        = (known after apply)
      + cidr_block                 = "10.0.0.0/24"
      + compartment_id             = (known after apply)
      + defined_tags               = (known after apply)
      + dhcp_options_id            = (known after apply)
      + display_name               = "public-subnet"
      + dns_label                  = (known after apply)
      + freeform_tags              = (known after apply)
      + id                         = (known after apply)
      + ipv6cidr_block             = (known after apply)
      + ipv6public_cidr_block      = (known after apply)
      + ipv6virtual_router_ip      = (known after apply)
      + prohibit_public_ip_on_vnic = (known after apply)
      + route_table_id             = (known after apply)
      + security_list_ids          = (known after apply)
      + state                      = (known after apply)
      + subnet_domain_name         = (known after apply)
      + time_created               = (known after apply)
      + vcn_id                     = (known after apply)
      + virtual_router_ip          = (known after apply)
      + virtual_router_mac         = (known after apply)
    }

  # oci_database_autonomous_database.tf_adb will be created
  + resource "oci_database_autonomous_database" "tf_adb" {
      + admin_password                                 = (sensitive value)
      + apex_details                                   = (known after apply)
      + are_primary_whitelisted_ips_used               = (known after apply)
      + autonomous_container_database_id               = (known after apply)
      + autonomous_database_backup_id                  = (known after apply)
      + autonomous_database_id                         = (known after apply)
      + available_upgrade_versions                     = (known after apply)
      + backup_config                                  = (known after apply)
      + clone_type                                     = (known after apply)
      + compartment_id                                 = (known after apply)
      + connection_strings                             = (known after apply)
      + connection_urls                                = (known after apply)
      + cpu_core_count                                 = 1
      + data_safe_status                               = (known after apply)
      + data_storage_size_in_gb                        = (known after apply)
      + data_storage_size_in_tbs                       = 1
      + db_name                                        = "obadw3"
      + db_version                                     = "21c"
      + db_workload                                    = "DW"
      + defined_tags                                   = (known after apply)
      + display_name                                   = "obadw3"
      + failed_data_recovery_in_seconds                = (known after apply)
      + freeform_tags                                  = (known after apply)
      + id                                             = (known after apply)
      + infrastructure_type                            = (known after apply)
      + is_access_control_enabled                      = (known after apply)
      + is_auto_scaling_enabled                        = (known after apply)
      + is_data_guard_enabled                          = (known after apply)
      + is_dedicated                                   = (known after apply)
      + is_free_tier                                   = true
      + is_preview                                     = (known after apply)
      + is_preview_version_with_service_terms_accepted = (known after apply)
      + is_refreshable_clone                           = (known after apply)
      + key_store_id                                   = (known after apply)
      + key_store_wallet_name                          = (known after apply)
      + license_model                                  = "LICENSE_INCLUDED"
      + lifecycle_details                              = (known after apply)
      + nsg_ids                                        = (known after apply)
      + open_mode                                      = (known after apply)
      + operations_insights_status                     = (known after apply)
      + permission_level                               = (known after apply)
      + private_endpoint                               = (known after apply)
      + private_endpoint_ip                            = (known after apply)
      + private_endpoint_label                         = (known after apply)
      + refreshable_mode                               = (known after apply)
      + refreshable_status                             = (known after apply)
      + role                                           = (known after apply)
      + service_console_url                            = (known after apply)
      + source                                         = (known after apply)
      + source_id                                      = (known after apply)
      + standby_db                                     = (known after apply)
      + standby_whitelisted_ips                        = (known after apply)
      + state                                          = (known after apply)
      + subnet_id                                      = (known after apply)
      + system_tags                                    = (known after apply)
      + time_created                                   = (known after apply)
      + time_deletion_of_free_autonomous_database      = (known after apply)
      + time_maintenance_begin                         = (known after apply)
      + time_maintenance_end                           = (known after apply)
      + time_of_last_failover                          = (known after apply)
      + time_of_last_refresh                           = (known after apply)
      + time_of_last_refresh_point                     = (known after apply)
      + time_of_last_switchover                        = (known after apply)
      + time_of_next_refresh                           = (known after apply)
      + time_reclamation_of_free_autonomous_database   = (known after apply)
      + timestamp                                      = (known after apply)
      + used_data_storage_size_in_tbs                  = (known after apply)
    }

  # oci_identity_compartment.tf_compartment will be created
  + resource "oci_identity_compartment" "tf_compartment" {
      + compartment_id = "ocid1.tenancy.oc1..aaaaaaaa..."
      + defined_tags   = (known after apply)
      + description    = "Oracle-Base Compartment 3"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + inactive_state = (known after apply)
      + is_accessible  = (known after apply)
      + name           = "obcomp3"
      + state          = (known after apply)
      + time_created   = (known after apply)
    }

  # module.vcn.oci_core_internet_gateway.ig[0] will be created
  + resource "oci_core_internet_gateway" "ig" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "internet-gateway"
      + enabled        = true
      + freeform_tags  = {
          + "environment" = "dev"
        }
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)
    }

  # module.vcn.oci_core_route_table.ig[0] will be created
  + resource "oci_core_route_table" "ig" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "internet-route"
      + freeform_tags  = {
          + "environment" = "dev"
        }
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + route_rules {
          + cidr_block        = (known after apply)
          + description       = (known after apply)
          + destination       = "0.0.0.0/0"
          + destination_type  = (known after apply)
          + network_entity_id = (known after apply)
        }
    }

  # module.vcn.oci_core_vcn.vcn will be created
  + resource "oci_core_vcn" "vcn" {
      + cidr_block               = "10.0.0.0/16"
      + cidr_blocks              = (known after apply)
      + compartment_id           = (known after apply)
      + default_dhcp_options_id  = (known after apply)
      + default_route_table_id   = (known after apply)
      + default_security_list_id = (known after apply)
      + defined_tags             = (known after apply)
      + display_name             = "obvcn3"
      + dns_label                = "obvcn3"
      + freeform_tags            = {
          + "environment" = "dev"
        }
      + id                       = (known after apply)
      + ipv6cidr_block           = (known after apply)
      + ipv6public_cidr_block    = (known after apply)
      + is_ipv6enabled           = (known after apply)
      + state                    = (known after apply)
      + time_created             = (known after apply)
      + vcn_domain_name          = (known after apply)
    }

Plan: 10 to add, 0 to change, 0 to destroy.

Changes to Outputs:
  + compartment_id           = (known after apply)
  + compartment_name         = "obcomp3"
  + db_name                  = "obadw3"
  + db_state                 = (known after apply)
  + private_security_list_id = (known after apply)
  + private_subnet_id        = (known after apply)
  + public_security_list_id  = (known after apply)
  + public_subnet_id         = (known after apply)
  + vcn_id                   = (known after apply)

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

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.

Use the terraform apply command to create the OCI infrastructure.

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:

  # oci_core_dhcp_options.tf_dhcp_options will be created
  + resource "oci_core_dhcp_options" "tf_dhcp_options" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "default-dhcp-options"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + options {
          + custom_dns_servers  = []
          + search_domain_names = (known after apply)
          + server_type         = "VcnLocalPlusInternet"
          + type                = "DomainNameServer"
        }
    }

  # oci_core_security_list.tf_private_security_list will be created
  + resource "oci_core_security_list" "tf_private_security_list" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "security-list-for-private-subnet"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + egress_security_rules {
          + description      = (known after apply)
          + destination      = "0.0.0.0/0"
          + destination_type = "CIDR_BLOCK"
          + protocol         = "all"
          + stateless        = false
        }

      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = -1
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = 4
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 22
              + min = 22
            }
        }
    }

  # oci_core_security_list.tf_public_security_list will be created
  + resource "oci_core_security_list" "tf_public_security_list" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "security-list-for-public-subnet"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + egress_security_rules {
          + description      = (known after apply)
          + destination      = "0.0.0.0/0"
          + destination_type = "CIDR_BLOCK"
          + protocol         = "all"
          + stateless        = false
        }

      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "10.0.0.0/16"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = -1
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "1"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + icmp_options {
              + code = 4
              + type = 3
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 1522
              + min = 1521
            }
        }
      + ingress_security_rules {
          + description = (known after apply)
          + protocol    = "6"
          + source      = "0.0.0.0/0"
          + source_type = "CIDR_BLOCK"
          + stateless   = false

          + tcp_options {
              + max = 22
              + min = 22
            }
        }
    }

  # oci_core_subnet.tf_vcn_private_subnet will be created
  + resource "oci_core_subnet" "tf_vcn_private_subnet" {
      + availability_domain        = (known after apply)
      + cidr_block                 = "10.0.1.0/24"
      + compartment_id             = (known after apply)
      + defined_tags               = (known after apply)
      + dhcp_options_id            = (known after apply)
      + display_name               = "private-subnet"
      + dns_label                  = (known after apply)
      + freeform_tags              = (known after apply)
      + id                         = (known after apply)
      + ipv6cidr_block             = (known after apply)
      + ipv6public_cidr_block      = (known after apply)
      + ipv6virtual_router_ip      = (known after apply)
      + prohibit_public_ip_on_vnic = (known after apply)
      + route_table_id             = (known after apply)
      + security_list_ids          = (known after apply)
      + state                      = (known after apply)
      + subnet_domain_name         = (known after apply)
      + time_created               = (known after apply)
      + vcn_id                     = (known after apply)
      + virtual_router_ip          = (known after apply)
      + virtual_router_mac         = (known after apply)
    }

  # oci_core_subnet.tf_vcn_public_subnet will be created
  + resource "oci_core_subnet" "tf_vcn_public_subnet" {
      + availability_domain        = (known after apply)
      + cidr_block                 = "10.0.0.0/24"
      + compartment_id             = (known after apply)
      + defined_tags               = (known after apply)
      + dhcp_options_id            = (known after apply)
      + display_name               = "public-subnet"
      + dns_label                  = (known after apply)
      + freeform_tags              = (known after apply)
      + id                         = (known after apply)
      + ipv6cidr_block             = (known after apply)
      + ipv6public_cidr_block      = (known after apply)
      + ipv6virtual_router_ip      = (known after apply)
      + prohibit_public_ip_on_vnic = (known after apply)
      + route_table_id             = (known after apply)
      + security_list_ids          = (known after apply)
      + state                      = (known after apply)
      + subnet_domain_name         = (known after apply)
      + time_created               = (known after apply)
      + vcn_id                     = (known after apply)
      + virtual_router_ip          = (known after apply)
      + virtual_router_mac         = (known after apply)
    }

  # oci_database_autonomous_database.tf_adb will be created
  + resource "oci_database_autonomous_database" "tf_adb" {
      + admin_password                                 = (sensitive value)
      + apex_details                                   = (known after apply)
      + are_primary_whitelisted_ips_used               = (known after apply)
      + autonomous_container_database_id               = (known after apply)
      + autonomous_database_backup_id                  = (known after apply)
      + autonomous_database_id                         = (known after apply)
      + available_upgrade_versions                     = (known after apply)
      + backup_config                                  = (known after apply)
      + clone_type                                     = (known after apply)
      + compartment_id                                 = (known after apply)
      + connection_strings                             = (known after apply)
      + connection_urls                                = (known after apply)
      + cpu_core_count                                 = 1
      + data_safe_status                               = (known after apply)
      + data_storage_size_in_gb                        = (known after apply)
      + data_storage_size_in_tbs                       = 1
      + db_name                                        = "obadw3"
      + db_version                                     = "21c"
      + db_workload                                    = "DW"
      + defined_tags                                   = (known after apply)
      + display_name                                   = "obadw3"
      + failed_data_recovery_in_seconds                = (known after apply)
      + freeform_tags                                  = (known after apply)
      + id                                             = (known after apply)
      + infrastructure_type                            = (known after apply)
      + is_access_control_enabled                      = (known after apply)
      + is_auto_scaling_enabled                        = (known after apply)
      + is_data_guard_enabled                          = (known after apply)
      + is_dedicated                                   = (known after apply)
      + is_free_tier                                   = true
      + is_preview                                     = (known after apply)
      + is_preview_version_with_service_terms_accepted = (known after apply)
      + is_refreshable_clone                           = (known after apply)
      + key_store_id                                   = (known after apply)
      + key_store_wallet_name                          = (known after apply)
      + license_model                                  = "LICENSE_INCLUDED"
      + lifecycle_details                              = (known after apply)
      + nsg_ids                                        = (known after apply)
      + open_mode                                      = (known after apply)
      + operations_insights_status                     = (known after apply)
      + permission_level                               = (known after apply)
      + private_endpoint                               = (known after apply)
      + private_endpoint_ip                            = (known after apply)
      + private_endpoint_label                         = (known after apply)
      + refreshable_mode                               = (known after apply)
      + refreshable_status                             = (known after apply)
      + role                                           = (known after apply)
      + service_console_url                            = (known after apply)
      + source                                         = (known after apply)
      + source_id                                      = (known after apply)
      + standby_db                                     = (known after apply)
      + standby_whitelisted_ips                        = (known after apply)
      + state                                          = (known after apply)
      + subnet_id                                      = (known after apply)
      + system_tags                                    = (known after apply)
      + time_created                                   = (known after apply)
      + time_deletion_of_free_autonomous_database      = (known after apply)
      + time_maintenance_begin                         = (known after apply)
      + time_maintenance_end                           = (known after apply)
      + time_of_last_failover                          = (known after apply)
      + time_of_last_refresh                           = (known after apply)
      + time_of_last_refresh_point                     = (known after apply)
      + time_of_last_switchover                        = (known after apply)
      + time_of_next_refresh                           = (known after apply)
      + time_reclamation_of_free_autonomous_database   = (known after apply)
      + timestamp                                      = (known after apply)
      + used_data_storage_size_in_tbs                  = (known after apply)
    }

  # oci_identity_compartment.tf_compartment will be created
  + resource "oci_identity_compartment" "tf_compartment" {
      + compartment_id = "ocid1.tenancy.oc1..aaaaaaaa..."
      + defined_tags   = (known after apply)
      + description    = "Oracle-Base Compartment 3"
      + freeform_tags  = (known after apply)
      + id             = (known after apply)
      + inactive_state = (known after apply)
      + is_accessible  = (known after apply)
      + name           = "obcomp3"
      + state          = (known after apply)
      + time_created   = (known after apply)
    }

  # module.vcn.oci_core_internet_gateway.ig[0] will be created
  + resource "oci_core_internet_gateway" "ig" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "internet-gateway"
      + enabled        = true
      + freeform_tags  = {
          + "environment" = "dev"
        }
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)
    }

  # module.vcn.oci_core_route_table.ig[0] will be created
  + resource "oci_core_route_table" "ig" {
      + compartment_id = (known after apply)
      + defined_tags   = (known after apply)
      + display_name   = "internet-route"
      + freeform_tags  = {
          + "environment" = "dev"
        }
      + id             = (known after apply)
      + state          = (known after apply)
      + time_created   = (known after apply)
      + vcn_id         = (known after apply)

      + route_rules {
          + cidr_block        = (known after apply)
          + description       = (known after apply)
          + destination       = "0.0.0.0/0"
          + destination_type  = (known after apply)
          + network_entity_id = (known after apply)
        }
    }

  # module.vcn.oci_core_vcn.vcn will be created
  + resource "oci_core_vcn" "vcn" {
      + cidr_block               = "10.0.0.0/16"
      + cidr_blocks              = (known after apply)
      + compartment_id           = (known after apply)
      + default_dhcp_options_id  = (known after apply)
      + default_route_table_id   = (known after apply)
      + default_security_list_id = (known after apply)
      + defined_tags             = (known after apply)
      + display_name             = "obvcn3"
      + dns_label                = "obvcn3"
      + freeform_tags            = {
          + "environment" = "dev"
        }
      + id                       = (known after apply)
      + ipv6cidr_block           = (known after apply)
      + ipv6public_cidr_block    = (known after apply)
      + is_ipv6enabled           = (known after apply)
      + state                    = (known after apply)
      + time_created             = (known after apply)
      + vcn_domain_name          = (known after apply)
    }

Plan: 10 to add, 0 to change, 0 to destroy.

Changes to Outputs:
  + compartment_id           = (known after apply)
  + compartment_name         = "obcomp3"
  + db_name                  = "obadw3"
  + db_state                 = (known after apply)
  + private_security_list_id = (known after apply)
  + private_subnet_id        = (known after apply)
  + public_security_list_id  = (known after apply)
  + public_subnet_id         = (known after apply)
  + vcn_id                   = (known after apply)

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

oci_identity_compartment.tf_compartment: Creating...
oci_identity_compartment.tf_compartment: Still creating... [10s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [20s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [30s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [40s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [50s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [1m0s elapsed]
oci_identity_compartment.tf_compartment: Still creating... [1m11s elapsed]
oci_identity_compartment.tf_compartment: Creation complete after 1m16s [id=ocid1.compartment.oc1..aaaaaaaa...]
module.vcn.oci_core_vcn.vcn: Creating...
oci_database_autonomous_database.tf_adb: Creating...
module.vcn.oci_core_vcn.vcn: Creation complete after 1s [id=ocid1.vcn.oc1.uk-london-1.amaaaaaa...]
module.vcn.oci_core_internet_gateway.ig[0]: Creating...
oci_core_dhcp_options.tf_dhcp_options: Creating...
oci_core_security_list.tf_private_security_list: Creating...
oci_core_security_list.tf_public_security_list: Creating...
module.vcn.oci_core_internet_gateway.ig[0]: Creation complete after 0s [id=ocid1.internetgateway.oc1.uk-london-1.aaaaaaaa...]
module.vcn.oci_core_route_table.ig[0]: Creating...
oci_core_security_list.tf_private_security_list: Creation complete after 0s [id=ocid1.securitylist.oc1.uk-london-1.aaaaaaaa...]
oci_core_subnet.tf_vcn_private_subnet: Creating...
oci_core_security_list.tf_public_security_list: Creation complete after 0s [id=ocid1.securitylist.oc1.uk-london-1.aaaaaaaa...]
module.vcn.oci_core_route_table.ig[0]: Creation complete after 0s [id=ocid1.routetable.oc1.uk-london-1.aaaaaaaa...]
oci_core_subnet.tf_vcn_public_subnet: Creating...
oci_core_dhcp_options.tf_dhcp_options: Creation complete after 0s [id=ocid1.dhcpoptions.oc1.uk-london-1.aaaaaaaa...]
oci_core_subnet.tf_vcn_private_subnet: Creation complete after 5s [id=ocid1.subnet.oc1.uk-london-1.aaaaaaaa...]
oci_core_subnet.tf_vcn_public_subnet: Creation complete after 5s [id=ocid1.subnet.oc1.uk-london-1.aaaaaaaa...]
oci_database_autonomous_database.tf_adb: Still creating... [10s elapsed]
oci_database_autonomous_database.tf_adb: Still creating... [20s elapsed]
oci_database_autonomous_database.tf_adb: Still creating... [30s elapsed]
oci_database_autonomous_database.tf_adb: Still creating... [40s elapsed]
oci_database_autonomous_database.tf_adb: Still creating... [50s elapsed]
oci_database_autonomous_database.tf_adb: Creation complete after 57s [id=ocid1.autonomousdatabase.oc1.uk-london-1.abwgiljsz...]

Apply complete! Resources: 10 added, 0 changed, 0 destroyed.

Outputs:

compartment_id = "ocid1.compartment.oc1..aaaaaaaa..."
compartment_name = "obcomp3"
db_name = "obadw3"
db_state = "AVAILABLE"
private_security_list_id = "ocid1.securitylist.oc1.uk-london-1.aaaaaaaa..."
private_subnet_id = "ocid1.subnet.oc1.uk-london-1.aaaaaaaa..."
public_security_list_id = "ocid1.securitylist.oc1.uk-london-1.aaaaaaaa..."
public_subnet_id = "ocid1.subnet.oc1.uk-london-1.aaaaaaaa..."
vcn_id = "ocid1.vcn.oc1.uk-london-1.amaaaaaa..."

Check the Oracle Cloud account to see the new infrastructure is built.

For more information see:

Hope this helps. Regards Tim...

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