tests: Fix building incorrect etcd version and make switch strict

Signed-off-by: Marek Siarkowicz <siarkowicz@google.com>

.github/workflows/robustness-nightly.yaml

@@ -6,25 +6,25 @@ on:
   schedule:
     - cron: '25 9 * * *' # runs every day at 09:25 UTC
 jobs:
-  test-main:
+  main:
     # GHA has a maximum amount of 6h execution time, we try to get done within 3h
     uses: ./.github/workflows/robustness-template.yaml
     with:
-      ref: main
+      etcdBranch: main
       count: 100
       testTimeout: 200m
-      artifactName: test-main
-  test-35:
+      artifactName: main
+  release-35:
     uses: ./.github/workflows/robustness-template.yaml
     with:
-      ref: release-3.5
+      etcdBranch: release-3.5
       count: 100
       testTimeout: 200m
-      artifactName: test-35
-  test-34:
+      artifactName: release-35
+  release-34:
     uses: ./.github/workflows/robustness-template.yaml
     with:
-      ref: release-3.4
+      etcdBranch: release-3.4
       count: 100
       testTimeout: 200m
-      artifactName: test-34
+      artifactName: release-34

.github/workflows/robustness-template.yaml

@@ -2,7 +2,7 @@ name: Reusable Robustness Workflow
 on:
   workflow_call:
     inputs:
-      ref:
+      etcdBranch:
         required: true
         type: string
       count:
@@ -27,11 +27,12 @@ jobs:
         go-version: '1.19.7'
     - name: build
       env:
-        GITHUB_REF: ${{ inputs.ref }}
+        ETCD_BRANCH: "${{ inputs.etcdBranch }}"
       run: |
         set -euo pipefail
 
-        case "${GITHUB_REF}" in
+        mkdir -p bin
+        case "${ETCD_BRANCH}" in
           release-3.5)
             make /tmp/etcd-release-3.5-failpoints/bin/etcd
             cp /tmp/etcd-release-3.5-failpoints/bin/etcd bin/etcd
@@ -40,11 +41,15 @@ jobs:
             make /tmp/etcd-release-3.4-failpoints/bin/etcd
             cp /tmp/etcd-release-3.4-failpoints/bin/etcd bin/etcd
             ;;
-          *)
+          main)
             make gofail-enable
             make build
             ;;
-          esac
+          *)
+            echo "Failed to find target ${ETCD_BRANCH}"
+            exit 1
+            ;;
+        esac
         ./bin/etcd --version
     - name: test-robustness
       run: |

.github/workflows/robustness.yaml

@@ -2,10 +2,10 @@ name: Robustness
 on: [push, pull_request]
 permissions: read-all
 jobs:
-  test:
+  main:
     uses: ./.github/workflows/robustness-template.yaml
     with:
-      ref: ${{ github.ref }}
+      etcdBranch: main
       count: 15
       testTimeout: 30m
-      artifactName: test
+      artifactName: main