feat: zero-idle gite runners infra

2026-08-27 12:34:23 +00:00
parent 56c033a541
commit c5026d3e9d
14 changed files with 1491 additions and 4 deletions
@@ -0,0 +1,70 @@
+#!/bin/dash
+# Allocation decision for gitea-runner-controller.
+# Fail-closed: anything not explicitly allowed here is refused.
+#
+# gcr_decide LABEL REPO -> prints "<server_type> <ttl_min> <rate_eur_h>" and
+# returns 0 when allowed; returns 1 with reason on stderr otherwise.
+
+gcr_label_profile() {
+    case "$1" in
+        nix)           printf 'cx33 180 0.008' ;;
+        ubuntu-latest) printf 'cx33 60 0.008'  ;;
+        *) return 1 ;;
+    esac
+}
+
+gcr_repo_allowed() {
+    repo="$1"
+    oldIFS="$IFS"
+    IFS=,
+    for allowed in ${GCR_ALLOWED_REPOS:-}; do
+        if [ "$allowed" = "$repo" ]; then
+            IFS="$oldIFS"
+            return 0
+        fi
+    done
+    IFS="$oldIFS"
+    return 1
+}
+
+gcr_decide() {
+    label="$1"; repo="$2"
+
+    if ! gcr_repo_allowed "$repo"; then
+        gcr_log warn --ns=decide "repo not allowed: $repo" 
+        return 1
+    fi
+
+    # Multi-label jobs are out of MVP scope: ambiguous VM profile mapping.
+    if ! profile="$(gcr_label_profile "$label")"; then
+        gcr_log warn --ns=decide "unknown or unsupported label: $label"
+        return 1
+    fi
+
+    printf '%s\n' "$profile"
+}
+
+gcr_count_active() {
+    count=0
+    for f in $(gcr_active_records); do
+        status="$(gcr_record_field "$(cat "$f")" status)"
+        case "$status" in
+            pending_vm|vm_active) count=$((count + 1)) ;;
+        esac
+    done
+    printf '%s' "$count"
+}
+
+gcr_count_active_repo() {
+    repo="$1"
+    count=0
+    for f in $(gcr_active_records); do
+        rec="$(cat "$f")"
+        case "$(gcr_record_field "$rec" status)" in
+            pending_vm|vm_active) ;;
+            *) continue ;;
+        esac
+        [ "$(gcr_record_field "$rec" repo)" = "$repo" ] && count=$((count + 1))
+    done
+    printf '%s' "$count"
+}