blockscout-terraform/roles/destroy/tasks/main.yml

- name: Local or remote backend selector (remote)
  template:
    src: roles/main_infra/templates/remote-backend-selector.tf.j2
    dest: roles/main_infra/files/remote-backend-selector.tf
  when:
    - backend|bool == true

- name: Local or remote backend selector (local)
  file:
    state: absent
    dest: roles/main_infra/files/remote-backend-selector.tf
  when:
    - backend | default ('false') | bool != true

- name: Generating variables file
  template:
    src: roles/main_infra/templates/terraform.tfvars.j2
    dest: roles/main_infra/files/terraform.tfvars
  vars:
    db_iops: "{{ chain_db_iops | default({}) }}"

- name: Generating backend file
  template:
    src: roles/main_infra/templates/backend.tfvars.j2
    dest: roles/main_infra/files/backend.tfvars
  when: backend|bool == true

- name: Generate Terraform files
  template:
    src: "{{ item.key }}"
    dest: "{{ item.value }}"
  with_dict: {roles/main_infra/templates/hosts.tf.j2: roles/main_infra/files/hosts.tf,roles/main_infra/templates/routing.tf.j2: roles/main_infra/files/routing.tf,roles/main_infra/templates/provider.tf.j2: roles/main_infra/files/provider.tf}

# This is due to the TF0.11 bug which do not allow to completely destroy resources if interpolation syntax is used in outputs.tf at edge cases
- name: Check if outputs.tf exists
  stat: path=roles/main_infra/files/outputs.tf
  register: outputs_stat

- name: Temporarily remove outputs.tf file
  command: mv roles/main_infra/files/outputs.tf roles/main_infra/files/outputs.tf.backup
  when: outputs_stat.stat.exists

- name: Terraform destroy main infra
  shell: "echo yes | {{ terraform_location }} {{ item }}"
  args:
    chdir: "roles/main_infra/files"
  with_items:
    - "init {{ '-backend-config=backend.tfvars' if backend|bool == true else '' }}"
    - destroy

- name: Delete vars from parameter store
  include: parameter_store.yml
  loop: "{{ chain_custom_environment.keys() }}"
  loop_control:
    loop_var: chain
    index_var: index

- name: Check if outputs.tf.backup exists
  stat: path=roles/main_infra/files/outputs.tf.backup
  register: outputs_backup_stat

- name: Get back outputs.tf file
  command: mv roles/main_infra/files/outputs.tf.backup roles/main_infra/files/outputs.tf
  when: outputs_backup_stat.stat.exists

- name: User prompt
  pause:
    prompt: "Do you want to delete S3 bucket with state file and DynamoDB attached to it also? [Yes/No] Default: No"
  register: user_answer

- name: Destroy S3 bucket
  s3_bucket:
    name: "{{ prefix }}-{{ bucket }}"
    state: absent
    force: yes
    profile: "{{ profile }}"
    aws_access_key: "{{ access_key }}"
    aws_secret_key: "{{ secret_key }}"
    region: "{{ region }}"
  vars:
    access_key: "{{ aws_access_key|default(omit) }}"
    secret_key: "{{ aws_secret_key|default(omit) }}"
    profile: "{{ aws_profile|default(omit) }}"
    region: "{{ aws_region|default(omit) }}"
  when: user_answer.user_input|bool == True

- dynamodb_table:
    name: "{{ prefix }}-{{ dynamodb_table }}"
    state: absent
    profile: "{{ profile }}"
    aws_access_key: "{{ access_key }}"
    aws_secret_key: "{{ secret_key }}"
    region: "{{ region }}"
  vars:
    access_key: "{{ aws_access_key|default(omit) }}"
    secret_key: "{{ aws_secret_key|default(omit) }}"
    profile: "{{ aws_profile|default(omit) }}"
    region: "{{ aws_region|default(omit) }}"
  when: user_answer.user_input|bool == True