Adjusted RAM Requirements for arm64 Workflows

Signed-off-by: fykaa <faeka6@gmail.com>

.github/workflows/robustness-nightly.yaml

@@ -27,7 +27,7 @@ jobs:
       count: 80
       testTimeout: 200m
       artifactName: main-arm64
-      runs-on: "['actuated-arm64-8cpu-32gb']"
+      runs-on: "['actuated-arm64-8cpu-8gb']"
   release-35:
     uses: ./.github/workflows/robustness-template.yaml
     with:
@@ -43,7 +43,7 @@ jobs:
       count: 100
       testTimeout: 200m
       artifactName: release-35-arm64
-      runs-on: "['actuated-arm64-8cpu-32gb']"
+      runs-on: "['actuated-arm64-8cpu-8gb']"
   release-34:
     uses: ./.github/workflows/robustness-template.yaml
     with:

.github/workflows/robustness.yaml

@@ -18,4 +18,4 @@ jobs:
       count: 12
       testTimeout: 30m
       artifactName: main-arm64
-      runs-on: "['actuated-arm64-8cpu-32gb']"
+      runs-on: "['actuated-arm64-8cpu-8gb']"

.github/workflows/tests-template.yaml

@@ -6,17 +6,16 @@ on:
       arch:
         required: true
         type: string
-      # runs-on:
-      #   required: true
-      #   type: string
+      runs-on:
+        required: true
+        type: string
 permissions: read-all
 
 jobs:
   test:
+    runs-on: ${{ inputs.runs-on }}
     # this is to prevent arm64 jobs from running at forked projects
-    if: inputs.arch == 'arm64' || github.repository == 'etcd-io/etcd'
-    # this is to tune memory allocation of arm64 architecture
-    runs-on: ${{ if inputs.arch == 'arm64' then 'actuated-arm64-8cpu-8gb' else inputs.runs-on end }}
+    if: inputs.arch == 'amd64' || github.repository == 'etcd-io/etcd'
     strategy:
       fail-fast: false
       matrix:

.github/workflows/tests.yaml

@@ -12,4 +12,4 @@ jobs:
     uses: ./.github/workflows/tests-template.yaml
     with:
       arch: arm64
-      runs-on: actuated-arm64-8cpu-32gb
+      runs-on: actuated-arm64-8cpu-8gb