feat(ci): update .gitlab-ci.yml file

.gitlab-ci.yml

 image: 
-  name: hashicorp/terraform:0.14.8
+  name: hashicorp/terraform:0.14.9
   entrypoint:
     - '/usr/bin/env'
     - 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
@@ -9,26 +9,17 @@ stages:
   - Staging Plan
   - Staging Apply
   - Integration Test
-  - Production Plan
-  - Production Apply
   - Destroy
 
-Test and Lint:
-  stage: Test and Lint
-  script:
-    - echo "test to do"
-  rules:
-    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME =~ /^(master|production)$/ || $CI_COMMIT_BRANCH =~ /^(master|production)$/'
-
 Validate Terraform:
   stage: Test and Lint
   script:
     - cd deploy/
+    - terraform fmt -check -recursive
     - terraform init -backend=false
     - terraform validate
-    - terraform fmt -check
   rules:
-    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME =~ /^(master|production)$/ || $CI_COMMIT_BRANCH =~ /^(master|production)$/'
+    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME =~ /^(master)$/ || $CI_COMMIT_BRANCH =~ /^(master)$/'
 
 Staging Plan:
   stage: Staging Plan
@@ -38,7 +29,7 @@ Staging Plan:
     - terraform workspace select staging || terraform workspace new staging
     - terraform plan
   rules:
-    - if: '$CI_COMMIT_BRANCH =~ /^(master|production)$/'
+    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME =~ /^(master)$/ || $CI_COMMIT_BRANCH =~ /^(master)$/'
 
 Staging Apply:
   stage: Staging Apply
@@ -56,22 +47,22 @@ Staging Apply:
     reports:
       dotenv: deploy.env
   rules:
-    - if: '$CI_COMMIT_BRANCH =~ /^(master|production)$/'
+    - if: '$CI_COMMIT_BRANCH =~ /^(master)$/'
 
 Integration Tests:
   stage: Integration Test
   image: 
-    name: postman/newman
+    name: postman/newman:5
     entrypoint: [""]
   script:
     - newman run Lambda_CRUD.postman_collection.json --env-var "endpoint=$API_ENDPOINT"
   rules:
-    - if: '$CI_COMMIT_BRANCH =~ /^(master|production)$/'
+    - if: '$CI_COMMIT_BRANCH =~ /^(master)$/'
 
 Load Tests:
   stage: Integration Test
   image: 
-    name: peterevans/vegeta
+    name: peterevans/vegeta:6.9
     entrypoint: [""]
   script:
     - echo "GET $API_ENDPOINT/crud" | vegeta attack -duration=3s -rate=100/s | vegeta report
@@ -79,29 +70,9 @@ Load Tests:
     - echo "PATCH $API_ENDPOINT/crud" | vegeta attack -duration=3s -rate=100/s | vegeta report
     - echo "DELETE $API_ENDPOINT/crud" | vegeta attack -duration=3s -rate=100/s | vegeta report
   rules:
-    - if: '$CI_COMMIT_BRANCH =~ /^(master|production)$/'
+    - if: '$CI_COMMIT_BRANCH =~ /^(master)$/'
       when: manual
 
-Production Plan:
-  stage: Production Plan
-  script:
-    - cd deploy/
-    - terraform init
-    - terraform workspace select production || terraform workspace new production
-    - terraform plan
-  rules:
-    - if: '$CI_COMMIT_BRANCH == "production"'
-
-Production Apply:
-  stage: Production Apply
-  script:
-    - cd deploy/
-    - terraform init
-    - terraform workspace select production
-    - terraform apply -auto-approve
-  rules:
-    - if: '$CI_COMMIT_BRANCH == "production"'
-
 Staging Destroy:
   stage: Destroy
   script:
@@ -110,16 +81,5 @@ Staging Destroy:
     - terraform workspace select staging
     - terraform destroy -auto-approve
   rules: 
-    - if: '$CI_COMMIT_BRANCH =~ /^(master|production)$/'
-      when: manual
-
-Production Destroy:
-  stage: Destroy
-  script:
-    - cd deploy/
-    - terraform init
-    - terraform workspace select production
-    - terraform destroy -auto-approve
-  rules: 
-    - if: '$CI_COMMIT_BRANCH == "production"'
+    - if: '$CI_COMMIT_BRANCH =~ /^(master)$/'
       when: manual