Replace terraform with opentf (#12291)

Terraform is no longer open source software and has been removed and
replaced with OpenTofu.

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

.gitlab-ci.yml

@@ -31,7 +31,7 @@ variables:
   ANSIBLE_VERBOSITY: 2
   RECOVER_CONTROL_PLANE_TEST: "false"
   RECOVER_CONTROL_PLANE_TEST_GROUPS: "etcd[2:]:kube_control_plane[1:]"
-  TF_VERSION: 1.3.7
+  OPENTOFU_VERSION: v1.9.1
   PIPELINE_IMAGE: "$CI_REGISTRY_IMAGE/pipeline:${CI_PIPELINE_ID}-${CI_COMMIT_SHORT_SHA}"
 
 before_script:

.gitlab-ci/terraform.yml

@@ -13,18 +13,18 @@
   before_script:
     - ./tests/scripts/rebase.sh
     - mkdir -p cluster-dump $ANSIBLE_INVENTORY
-    - ./tests/scripts/terraform_install.sh
+    - ./tests/scripts/opentofu_install.sh
     - cp contrib/terraform/$PROVIDER/sample-inventory/cluster.tfvars .
     - ln -rs -t $ANSIBLE_INVENTORY contrib/terraform/$PROVIDER/hosts
-    - terraform -chdir="contrib/terraform/$PROVIDER" init
+    - tofu -chdir="contrib/terraform/$PROVIDER" init
 
 terraform_validate:
   extends: .terraform_install
   tags: [ffci]
   only: ['master', /^pr-.*$/]
   script:
-    - terraform -chdir="contrib/terraform/$PROVIDER" validate
-    - terraform -chdir="contrib/terraform/$PROVIDER" fmt -check -diff
+    - tofu -chdir="contrib/terraform/$PROVIDER" validate
+    - tofu -chdir="contrib/terraform/$PROVIDER" fmt -check -diff
   stage: test
   needs:
     - pipeline-image
@@ -58,11 +58,11 @@ terraform_validate:
     - mkdir -p contrib/terraform/$PROVIDER/group_vars
     # Random subnet to avoid routing conflicts
     - export TF_VAR_subnet_cidr="10.$(( $RANDOM % 256 )).$(( $RANDOM % 256 )).0/24"
-    - terraform -chdir="contrib/terraform/$PROVIDER" apply -auto-approve -parallelism=1
+    - tofu -chdir="contrib/terraform/$PROVIDER" apply -auto-approve -parallelism=1
     - tests/scripts/testcases_run.sh
   after_script:
     # Cleanup regardless of exit code
-    - terraform -chdir="contrib/terraform/$PROVIDER" destroy -auto-approve
+    - tofu -chdir="contrib/terraform/$PROVIDER" destroy -auto-approve
 
 # Elastx is generously donating resources for Kubespray on Openstack CI
 # Contacts: @gix @bl0m1

tests/scripts/opentofu_install.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+set -euxo pipefail
+
+curl --proto '=https' --tlsv1.2 -fsSL https://get.opentofu.org/install-opentofu.sh -o install-opentofu.sh
+chmod +x install-opentofu.sh
+./install-opentofu.sh --install-method standalone
+rm -f install-opentofu.sh
+tofu --version

tests/scripts/terraform_install.sh

@@ -1,6 +0,0 @@
-#!/bin/bash
-set -euxo pipefail
-
-apt-get install -y unzip
-curl https://releases.hashicorp.com/terraform/${TF_VERSION}/terraform_${TF_VERSION}_linux_amd64.zip > /tmp/terraform.zip
-unzip /tmp/terraform.zip && mv ./terraform /usr/local/bin/ && terraform --version