Terraform backend vars for pre-commit.

Some invocations need it.

templates/pre-commit.yml

@@ -10,6 +10,16 @@ pre-commit:
     XDG_CACHE_HOME: "$CI_PROJECT_DIR/.cache"
     SKIP: |-
       gitlab-ci-linter
+    # yamllint disable-line rule:line-length
+    TF_HTTP_ADDRESS: ${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/terraform/state/default
+    TF_HTTP_USERNAME: gitlab-ci-token
+    TF_HTTP_PASSWORD: ${CI_JOB_TOKEN}
+    # yamllint disable-line rule:line-length
+    TF_HTTP_LOCK_ADDRESS: ${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/terraform/state/default/lock
+    TF_HTTP_LOCK_METHOD: POST
+    # yamllint disable-line rule:line-length
+    TF_HTTP_UNLOCK_ADDRESS: ${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/terraform/state/default/lock
+    TF_HTTP_UNLOCK_METHOD: DELETE
   script:
     - pre-commit run --all-files
   cache: