Added VA HCI trigger experimental job

It is based on the work done by @son-vyas
openstack-k8s-operators/ci-playground#12.

It will help users to trigger VA HCI job by "trigger github-experimental".

Signed-off-by: Chandan Kumar (raukadah) <[email protected]>

ci/templates/projects.yaml

@@ -8,6 +8,9 @@
     templates:
       - podified-multinode-edpm-ci-framework-pipeline
       - data-plane-adoption-ci-framework-pipeline
+    github-experimental-trigger:
+      jobs:
+        - downstream-va-hci-trigger-job
     github-check:
       jobs:
         - noop

zuul.d/projects.yaml

@@ -1,4 +1,7 @@
 - project:
+    github-experimental-trigger:
+      jobs:
+        - downstream-va-hci-trigger-job
     github-check:
       jobs:
       - noop

zuul.d/trigger_jobs.yaml

@@ -0,0 +1,62 @@
+---
+- job:
+    name: downstream-va-hci-trigger-job
+    parent: create-nested-virt-trigger-from-github-pr
+    files:
+      - ^roles/devscripts/(defaults|files|handlers|library|lookup_plugins|module_utils|tasks|templates|vars).*
+      - ^roles/dnsmasq/(defaults|files|handlers|library|lookup_plugins|module_utils|tasks|templates|vars).*
+      - ^roles/libvirt_manager/(defaults|files|handlers|library|lookup_plugins|module_utils|tasks|templates|vars).*
+      - ^roles/reproducer/(defaults|files|handlers|library|lookup_plugins|module_utils|tasks|templates|vars).*
+      - ^roles/virtualbmc/(defaults|files|handlers|library|lookup_plugins|module_utils|tasks|templates|vars).*
+      - ^playbooks/06-deploy-architecture.yml
+    irrelevant-files: &ir_files
+      - .*/*.md
+      - ^.github/.*$
+      - ^LICENSE$
+      - ^OWNERS$
+      - ^OWNERS_ALIASES$
+      - ^PROJECT$
+      - ^README.md$
+      - ^renovate.json$
+      - ^kuttl-test.yaml$
+      - molecule/.*
+      - molecule-requirements.txt
+      - .github/workflows
+      - docs/.*
+      - contribute/.*
+      - roles/.*/molecule/.*
+      - ci/playbooks/pre-commit.yml
+      - ci/playbooks/pre-doc.yml
+      - ci/playbooks/run-doc.yml
+      - ci/playbooks/molecule-prepare.yml
+      - ci/playbooks/molecule-test.yml
+      # ci-framework
+      - .ansible-lint
+      - .config/molecule/.*
+      - .pre-commit-config.yaml
+      - .readthedocs.yaml
+      - .spellcheck.yml
+      - roles/dlrn_report
+      - roles/dlrn_promote
+      - roles/devscripts
+      - roles/dnsmasq
+      - roles/nat64_appliance
+      - roles/reproducer
+      - roles/virtualbmc
+      - roles/validations
+      - zuul.d/molecule.*
+      # Other openstack operators
+      - containers/ci
+      - .ci-operator.yaml
+      - .dockerignore
+      - .gitignore
+      - .golangci.yaml
+      - .pre-commit-config.yaml
+      - tests?\/functional
+      # openstack-ansibleee-operator
+      - examples
+      - mkdocs.yml
+    vars:
+      # It will create a file trigger_va_hci
+      trigger_job_name: "va_hci"
+      trigger_commit_msg: "Triggering VA HCI job"