Release matrix testing all operators at once (#216)

Signed-off-by: Tomas Hehejik <thehejik@suse.com>

.github/workflows/release-matrix.yaml

@@ -0,0 +1,68 @@
+name: Release-matrix
+run-name: Rancher release `${{ inputs.rancher_version }}` deployed on `${{ inputs.k3s_version }}`
+
+on:
+  workflow_dispatch:
+    inputs:
+      rancher_version:
+        description: Rancher version channel/version/head_version
+        required: true
+        type: string
+        default: latest/devel/2.10
+      k3s_version:
+        description: k3s version of local cluster
+        required: true
+        type: string
+        default: v1.30.5+k3s1
+      runner_template:
+        description: Runner template to use
+        default: hosted-prov-e2e-ci-runner-spot-n2-highmem-16-gl-template-v3
+        type: string
+      operator_nightly_chart:
+        description: Install hosted-provider nightly chart
+        default: false
+        required: true
+        type: boolean
+      destroy_runner:
+        description: Destroy the auto-generated self-hosted runner
+        default: true
+        type: boolean
+      downstream_cluster_cleanup:
+        description: Cleanup downstream clusters after test
+        default: true
+        type: boolean
+      downstream_k8s_minor_version:
+        description: Downstream cluster minor K8s version to test (e.g., 1.30)
+      rancher_installed:
+        description: Rancher details if already installed
+        default: 'hostname/password'
+        type: string
+      tests_to_run:
+        description: Tests to run
+        required: true
+        default: p0_provisioning/p0_import
+      proxy:
+        description: Install Rancher behind proxy
+        type: boolean
+        default: false
+
+jobs:
+  e2e-tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        provider: [aks, eks, gke]
+    uses: ./.github/workflows/main.yaml
+    secrets: inherit
+    with:
+      hosted_provider: ${{ matrix.provider }}
+      rancher_version: ${{ inputs.rancher_version }}
+      k3s_version: ${{ inputs.k3s_version }}
+      operator_nightly_chart: ${{ inputs.operator_nightly_chart }}
+      tests_to_run: ${{ inputs.tests_to_run }}
+      destroy_runner: ${{ inputs.destroy_runner }}
+      runner_template: ${{ inputs.runner_template }}
+      downstream_k8s_minor_version: ${{ inputs.downstream_k8s_minor_version }}
+      rancher_installed: ${{ inputs.rancher_installed }}
+      downstream_cluster_cleanup: ${{ inputs.downstream_cluster_cleanup }}
+      proxy: ${{ inputs.proxy }}