chore: tune runner defaults and pin renovate to 8gb

.gitea/workflows/renovate.yml

@@ -15,8 +15,8 @@ on:
 jobs:
   renovate:
     name: Renovate Dependencies
-    # Non-heavy workflow: allow any host exposing the generic ubuntu-act label.
+    # Renovate is npm/registry heavy; restrict to 8GB-capacity runners.
-    runs-on: ubuntu-act
+    runs-on: ubuntu-act-8gb
     timeout-minutes: 90
 
     steps:

scripts/gitea-actions/deploy-runner-config.xsh

@@ -27,11 +27,11 @@ WARMUP_IMAGES = [
     "ghcr.io/renovatebot/renovate:41",
 ]
 
-DEFAULT_MEM_FRACTION = 0.75
+DEFAULT_MEM_FRACTION = 0.5
 DEFAULT_JOB_MEM_FRACTION = 0.9
-DEFAULT_HOST_MEM_SHARE = 0.25
+DEFAULT_HOST_MEM_SHARE = 1.0
-DEFAULT_HOST_CPU_SHARE = 0.25
+DEFAULT_HOST_CPU_SHARE = 1.0
-DEFAULT_CPU_FRACTION = 1.0
+DEFAULT_CPU_FRACTION = 0.5
 DEFAULT_JOB_CPU_FRACTION = 0.9
 DEFAULT_RUNNER_MEM_SWAP_FACTOR = 1.0
 DEFAULT_JOB_MEM_SWAP_FACTOR = 1.0
@@ -268,16 +268,13 @@ def scp(local_path, host, remote_path):
 
 
 def warm_runner_images(host):
-    pulls = "\n".join([f"docker pull {image}" for image in WARMUP_IMAGES])
+    pulls = " && ".join([f"docker pull {image}" for image in WARMUP_IMAGES])
-    rc, out = ssh(
+    remote_cmd = (
-        host,
+        "echo warming_runner_images_start && "
-        (
+        f"{pulls} && "
-            "set -e\n"
+        "echo warming_runner_images_done"
-            "echo 'warming_runner_images_start'\n"
-            f"{pulls}\n"
-            "echo 'warming_runner_images_done'\n"
-        ),
     )
+    rc, out = ssh(host, remote_cmd)
     return rc, out