remove redis pubsub from pyworker

lib/backend.py

@@ -66,9 +66,6 @@ class Backend:
     unsecured: bool = dataclasses.field(
         default_factory=lambda: bool(strtobool(os.environ.get("UNSECURED", "false"))),
     )
-    report_addr: str = dataclasses.field(
-        default_factory=lambda: os.environ.get("REPORT_ADDR", "https://run.vast.ai")
-    )
 
     def __post_init__(self):
         self.metrics = Metrics()
@@ -107,19 +104,23 @@ class Backend:
 
     #######################################Private#######################################
     def _fetch_pubkey(self):
-        report_addr = self.report_addr.rstrip("/")
-        command = ["curl", "-X", "GET", f"{report_addr}/pubkey/"]
-        try:
-            result = subprocess.check_output(command, universal_newlines=True)
-            log.debug("public key:")
-            log.debug(result)
-            key = RSA.import_key(result)
-            if key is not None:
-                return key
-        except (ValueError , subprocess.CalledProcessError) as e:
-            log.debug(f"Error downloading key: {e}")
-        self.backend_errored("Failed to get autoscaler pubkey")
-       
+        command = ["curl", "-X", "GET", "https://run.vast.ai/pubkey/"]
+        result = subprocess.check_output(command, universal_newlines=True)
+        log.debug("public key:")
+        log.debug(result)
+        key = None
+        for _ in range(5):
+            try:
+                key = RSA.import_key(result)
+                break
+            except ValueError as e:
+                log.debug(f"Error downloading key: {e}")
+                time.sleep(15)
+        if key is None:
+            self._total_pubkey_fetch_errors += 1
+            if self._total_pubkey_fetch_errors >= MAX_PUBKEY_FETCH_ATTEMPTS:
+                self.backend_errored("Failed to get autoscaler pubkey")
+        return key
 
     async def __handle_request(
         self,

start_server.sh

@@ -9,7 +9,7 @@ ENV_PATH="$WORKSPACE_DIR/worker-env"
 DEBUG_LOG="$WORKSPACE_DIR/debug.log"
 PYWORKER_LOG="$WORKSPACE_DIR/pyworker.log"
 
-REPORT_ADDR="${REPORT_ADDR:-https://cloud.vast.ai/api/v0,https://run.vast.ai}"
+REPORT_ADDR="${REPORT_ADDR:-https://run.vast.ai}"
 USE_SSL="${USE_SSL:-true}"
 WORKER_PORT="${WORKER_PORT:-3000}"
 mkdir -p "$WORKSPACE_DIR"