runner configs

Author: ryan-williams

src/ec2_gha/start.py

@@ -353,7 +353,8 @@ def create_instances(self) -> dict[str, str]:
                 "runner_registration_timeout": environ.get("INPUT_RUNNER_REGISTRATION_TIMEOUT", "").strip() or RUNNER_REGISTRATION_TIMEOUT,
                 "runner_release": self.runner_release,
                 "runners_per_instance": str(self.runners_per_instance),
-                "runner_configs": json.dumps(runner_configs),  # Always pass runner configs as JSON
+                # Base64 encode the JSON to avoid shell escaping issues
+                "runner_configs_b64": __import__('base64').b64encode(json.dumps(runner_configs).encode()).decode(),
                 "script": self.script,
                 "ssh_pubkey": self.ssh_pubkey,
                 "token": base_token,  # Keep for backward compatibility

src/ec2_gha/templates/user-script.sh.templ

@@ -373,10 +373,11 @@ fi
 # Process each runner configuration
 log "Setting up $$RUNNERS_PER_INSTANCE runner(s)"
 python3 -c "
-import json, sys, os, subprocess, traceback
+import json, sys, os, subprocess, traceback, base64
 
-# Runner configurations passed from Python
-runner_configs_json = '''$runner_configs'''
+# Runner configurations passed from Python (base64 encoded to avoid shell escaping issues)
+runner_configs_b64 = '$runner_configs_b64'
+runner_configs_json = base64.b64decode(runner_configs_b64).decode()
 
 try:
     configs = json.loads(runner_configs_json)