Move to lazy imports and custom API client

Avoid loading these if unneeded

.gitignore

@@ -8,3 +8,4 @@ debian/pvc-*/
 debian/*.log
 debian/*.substvars
 debian/files
+client-cli/build/

api-daemon/pvcapid/Daemon.py

@@ -81,6 +81,7 @@ def create_app():
     print("|--------------------------------------------------------------|")
     print("| Parallel Virtual Cluster API daemon v{0: <23} |".format(version))
     print("| Debug: {0: <53} |".format(str(config["debug"])))
+    print("| Cluster: {0: <51} |".format(config["cluster_name"]))
     print("| API version: v{0: <46} |".format(API_VERSION))
     print(
         "| Listen: {0: <52} |".format(

client-cli/pvc/cli/formatters.py

@@ -221,7 +221,7 @@ def cli_cluster_status_format_pretty(CLI_CONFIG, data):
             continue
         if state in ["start"]:
             state_colour = ansii["green"]
-        elif state in ["migrate", "disable", "provision", "mirror"]:
+        elif state in ["migrate", "disable", "provision"]:
             state_colour = ansii["blue"]
         elif state in ["mirror"]:
             state_colour = ansii["purple"]

client-cli/pvc/cli/helpers.py

@@ -20,7 +20,6 @@
 ###############################################################################
 
 from click import echo as click_echo
-from distutils.util import strtobool
 from json import load as jload
 from json import dump as jdump
 from os import chmod, environ, getpid, path, get_terminal_size
@@ -150,9 +149,7 @@ def get_config(store_data, connection=None):
     if connection == "local":
         config["verify_ssl"] = False
     else:
-        config["verify_ssl"] = bool(
+        config["verify_ssl"] = environ.get("PVC_CLIENT_VERIFY_SSL", "True") == "True"
-            strtobool(environ.get("PVC_CLIENT_VERIFY_SSL", "True"))
-        )
 
     return config
 

client-cli/pvc/lib/common.py

@@ -19,13 +19,15 @@
 #
 ###############################################################################
 
-import os
-import math
-import time
-import requests
-import click
 from ast import literal_eval
-from urllib3 import disable_warnings
+from click import echo, progressbar
+from math import ceil
+from os.path import getsize
+from time import time
+import socket
+import json
+import ssl
+import base64
 
 
 def format_bytes(size_bytes):
@@ -39,7 +41,7 @@ def format_bytes(size_bytes):
     }
     human_bytes = "0B"
     for unit in sorted(byte_unit_matrix, key=byte_unit_matrix.get):
-        formatted_bytes = int(math.ceil(size_bytes / byte_unit_matrix[unit]))
+        formatted_bytes = int(ceil(size_bytes / byte_unit_matrix[unit]))
         if formatted_bytes < 10000:
             human_bytes = "{}{}".format(formatted_bytes, unit)
             break
@@ -57,7 +59,7 @@ def format_metric(integer):
     }
     human_integer = "0"
     for unit in sorted(integer_unit_matrix, key=integer_unit_matrix.get):
-        formatted_integer = int(math.ceil(integer / integer_unit_matrix[unit]))
+        formatted_integer = int(ceil(integer / integer_unit_matrix[unit]))
         if formatted_integer < 10000:
             human_integer = "{}{}".format(formatted_integer, unit)
             break
@@ -97,12 +99,12 @@ def format_age(age_secs):
 
 class UploadProgressBar(object):
     def __init__(self, filename, end_message="", end_nl=True):
-        file_size = os.path.getsize(filename)
+        file_size = getsize(filename)
         file_size_human = format_bytes(file_size)
-        click.echo("Uploading file (total size {})...".format(file_size_human))
+        echo("Uploading file (total size {})...".format(file_size_human))
 
         self.length = file_size
-        self.time_last = int(round(time.time() * 1000)) - 1000
+        self.time_last = int(round(time() * 1000)) - 1000
         self.bytes_last = 0
         self.bytes_diff = 0
         self.is_end = False
@@ -114,7 +116,7 @@ class UploadProgressBar(object):
         else:
             self.end_suffix = ""
 
-        self.bar = click.progressbar(length=self.length, width=20, show_eta=True)
+        self.bar = progressbar(length=self.length, width=20, show_eta=True)
 
     def update(self, monitor):
         bytes_cur = monitor.bytes_read
@@ -123,7 +125,7 @@ class UploadProgressBar(object):
             self.is_end = True
         self.bytes_last = bytes_cur
 
-        time_cur = int(round(time.time() * 1000))
+        time_cur = int(round(time() * 1000))
         if (time_cur - 1000) > self.time_last:
             self.time_last = time_cur
             self.bar.update(self.bytes_diff)
@@ -132,20 +134,192 @@ class UploadProgressBar(object):
         if self.is_end:
             self.bar.update(self.bytes_diff)
             self.bytes_diff = 0
-            click.echo()
+            echo()
-            click.echo()
+            echo()
             if self.end_message:
-                click.echo(self.end_message + self.end_suffix, nl=self.end_nl)
+                echo(self.end_message + self.end_suffix, nl=self.end_nl)
 
 
-class ErrorResponse(requests.Response):
+class Response:
-    def __init__(self, json_data, status_code, headers):
+    """Minimal Response class to replace requests.Response"""
-        self.json_data = json_data
+    def __init__(self, status_code, headers, content):
         self.status_code = status_code
         self.headers = headers
+        self.content = content
+        self._json = None
     
     def json(self):
-        return self.json_data
+        if self._json is None:
+            try:
+                self._json = json.loads(self.content.decode('utf-8'))
+            except json.JSONDecodeError:
+                self._json = {}
+        return self._json
+
+
+class ConnectionError(Exception):
+    """Simple ConnectionError class to replace requests.exceptions.ConnectionError"""
+    pass
+
+
+class ErrorResponse(Response):
+    def __init__(self, json_data, status_code, headers):
+        self.status_code = status_code
+        self.headers = headers
+        self._json = json_data
+        self.content = json.dumps(json_data).encode('utf-8') if json_data else b''
+    
+    def json(self):
+        return self._json
+
+
+def _parse_url(url):
+    """Simple URL parser without using urllib"""
+    if '://' in url:
+        scheme, rest = url.split('://', 1)
+    else:
+        scheme = 'http'
+        rest = url
+    
+    if '/' in rest:
+        host_port, path = rest.split('/', 1)
+        path = '/' + path
+    else:
+        host_port = rest
+        path = '/'
+    
+    if ':' in host_port:
+        host, port_str = host_port.split(':', 1)
+        port = int(port_str)
+    else:
+        host = host_port
+        port = 443 if scheme == 'https' else 80
+    
+    return scheme, host, port, path
+
+
+def _encode_params(params):
+    """Simple URL parameter encoder"""
+    if not params:
+        return ''
+    
+    parts = []
+    for key, value in params.items():
+        if isinstance(value, bool):
+            value = str(value).lower()
+        elif value is None:
+            value = ''
+        else:
+            value = str(value)
+        parts.append(f"{key}={value}")
+    
+    return '?' + '&'.join(parts)
+
+
+def _make_request(method, url, headers=None, params=None, data=None, files=None, timeout=5, verify=True):
+    """Simple HTTP client using sockets"""
+    headers = headers or {}
+    scheme, host, port, path = _parse_url(url)
+    
+    # Add query parameters
+    path += _encode_params(params)
+    
+    # Prepare body
+    body = None
+    if data is not None and files is None:
+        if isinstance(data, dict):
+            body = json.dumps(data).encode('utf-8')
+            if 'Content-Type' not in headers:
+                headers['Content-Type'] = 'application/json'
+        else:
+            body = data.encode('utf-8') if isinstance(data, str) else data
+    
+    # Handle file uploads
+    if files:
+        boundary = f'----WebKitFormBoundary{int(time())}'
+        headers['Content-Type'] = f'multipart/form-data; boundary={boundary}'
+        
+        body = b''
+        # Add form fields
+        if data:
+            for key, value in data.items():
+                body += f'--{boundary}\r\n'.encode()
+                body += f'Content-Disposition: form-data; name="{key}"\r\n\r\n'.encode()
+                body += f'{value}\r\n'.encode()
+        
+        # Add files
+        for key, file_tuple in files.items():
+            filename, fileobj, content_type = file_tuple
+            body += f'--{boundary}\r\n'.encode()
+            body += f'Content-Disposition: form-data; name="{key}"; filename="{filename}"\r\n'.encode()
+            body += f'Content-Type: {content_type}\r\n\r\n'.encode()
+            body += fileobj.read()
+            body += b'\r\n'
+        
+        body += f'--{boundary}--\r\n'.encode()
+    
+    # Create socket
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.settimeout(timeout)
+    
+    try:
+        # Handle SSL for HTTPS
+        if scheme == 'https':
+            context = ssl.create_default_context()
+            if not verify:
+                context.check_hostname = False
+                context.verify_mode = ssl.CERT_NONE
+            s = context.wrap_socket(s, server_hostname=host)
+        
+        # Connect
+        s.connect((host, port))
+        
+        # Build request
+        request = f"{method} {path} HTTP/1.1\r\n"
+        request += f"Host: {host}\r\n"
+        
+        for key, value in headers.items():
+            request += f"{key}: {value}\r\n"
+        
+        if body:
+            request += f"Content-Length: {len(body)}\r\n"
+        
+        request += "Connection: close\r\n\r\n"
+        
+        # Send request
+        s.sendall(request.encode('utf-8'))
+        if body:
+            s.sendall(body)
+        
+        # Read response
+        response_data = b""
+        while True:
+            chunk = s.recv(4096)
+            if not chunk:
+                break
+            response_data += chunk
+        
+        # Parse response
+        header_end = response_data.find(b'\r\n\r\n')
+        headers_raw = response_data[:header_end].decode('utf-8')
+        body_raw = response_data[header_end + 4:]
+        
+        # Parse status code
+        status_line = headers_raw.split('\r\n')[0]
+        status_code = int(status_line.split(' ')[1])
+        
+        # Parse headers
+        headers_dict = {}
+        for line in headers_raw.split('\r\n')[1:]:
+            if not line:
+                continue
+            key, value = line.split(':', 1)
+            headers_dict[key.strip()] = value.strip()
+        
+        return Response(status_code, headers_dict, body_raw)
+    
+    finally:
+        s.close()
 
 
 def call_api(
@@ -158,7 +332,7 @@ def call_api(
     files=None,
 ):
     # Set the connect timeout to 2 seconds but extremely long (48 hour) data timeout
-    timeout = (2.05, 172800)
+    timeout = 2.05
 
     # Craft the URI
     uri = "{}://{}{}{}".format(
@@ -170,7 +344,6 @@ def call_api(
         headers["X-Api-Key"] = config["api_key"]
 
     # Determine the request type and hit the API
-    disable_warnings()
     try:
         response = None
         if operation == "get":
@@ -178,63 +351,66 @@ def call_api(
             for i in range(3):
                 failed = False
                 try:
-                    response = requests.get(
+                    response = _make_request(
+                        "GET", 
                         uri, 
-                        timeout=timeout,
                         headers=headers, 
                         params=params, 
                         data=data, 
-                        verify=config["verify_ssl"],
+                        timeout=timeout, 
+                        verify=config["verify_ssl"]
                     )
                     if response.status_code in retry_on_code:
                         failed = True
                         continue
                     break
-                except requests.exceptions.ConnectionError:
+                except Exception:
                     failed = True
                     continue
             if failed:
                 error = f"Code {response.status_code}" if response else "Timeout"
-                raise requests.exceptions.ConnectionError(
+                raise ConnectionError(f"Failed to connect after 3 tries ({error})")
-                    f"Failed to connect after 3 tries ({error})"
+        elif operation == "post":
-                )
+            response = _make_request(
-        if operation == "post":
+                "POST", 
-            response = requests.post(
                 uri, 
-                timeout=timeout,
                 headers=headers, 
                 params=params, 
                 data=data, 
                 files=files, 
-                verify=config["verify_ssl"],
-            )
-        if operation == "put":
-            response = requests.put(
-                uri,
                 timeout=timeout, 
+                verify=config["verify_ssl"]
+            )
+        elif operation == "put":
+            response = _make_request(
+                "PUT", 
+                uri, 
                 headers=headers, 
                 params=params, 
                 data=data, 
                 files=files, 
-                verify=config["verify_ssl"],
-            )
-        if operation == "patch":
-            response = requests.patch(
-                uri,
                 timeout=timeout, 
+                verify=config["verify_ssl"]
+            )
+        elif operation == "patch":
+            response = _make_request(
+                "PATCH", 
+                uri, 
                 headers=headers, 
                 params=params, 
                 data=data, 
-                verify=config["verify_ssl"],
-            )
-        if operation == "delete":
-            response = requests.delete(
-                uri,
                 timeout=timeout, 
+                verify=config["verify_ssl"]
+            )
+        elif operation == "delete":
+            response = _make_request(
+                "DELETE", 
+                uri, 
                 headers=headers, 
                 params=params, 
                 data=data, 
-                verify=config["verify_ssl"],
+                timeout=timeout, 
+                verify=config["verify_ssl"]
             )
     except Exception as e:
         message = "Failed to connect to the API: {}".format(e)
@@ -243,10 +419,10 @@ def call_api(
 
     # Display debug output
     if config["debug"]:
-        click.echo("API endpoint: {}".format(uri), err=True)
+        echo("API endpoint: {}".format(uri), err=True)
-        click.echo("Response code: {}".format(response.status_code), err=True)
+        echo("Response code: {}".format(response.status_code), err=True)
-        click.echo("Response headers: {}".format(response.headers), err=True)
+        echo("Response headers: {}".format(response.headers), err=True)
-        click.echo(err=True)
+        echo(err=True)
 
     # Return the response object
     return response

client-cli/pvc/lib/lazy_imports.py

@@ -0,0 +1,17 @@
+"""
+Lazy import mechanism for PVC CLI to reduce startup time
+"""
+
+class LazyModule:
+    """
+    A proxy for a module that is loaded only when actually used
+    """
+    def __init__(self, name):
+        self.name = name
+        self._module = None
+    
+    def __getattr__(self, attr):
+        if self._module is None:
+            import importlib
+            self._module = importlib.import_module(self.name)
+        return getattr(self._module, attr) 

client-cli/pvc/lib/provisioner.py

@@ -19,11 +19,6 @@
 #
 ###############################################################################
 
-from requests_toolbelt.multipart.encoder import (
-    MultipartEncoder,
-    MultipartEncoderMonitor,
-)
-
 import pvc.lib.ansiprint as ansiprint
 from pvc.lib.common import UploadProgressBar, call_api, get_wait_retdata
 
@@ -549,6 +544,12 @@ def ova_upload(config, name, ova_file, params):
     bar = UploadProgressBar(
         ova_file, end_message="Parsing file on remote side...", end_nl=False
     )
+
+    from requests_toolbelt.multipart.encoder import (
+        MultipartEncoder,
+        MultipartEncoderMonitor,
+    )
+
     upload_data = MultipartEncoder(
         fields={"file": ("filename", open(ova_file, "rb"), "application/octet-stream")}
     )

client-cli/pvc/lib/storage.py

@@ -23,10 +23,6 @@ import math
 
 from os import path
 from json import loads
-from requests_toolbelt.multipart.encoder import (
-    MultipartEncoder,
-    MultipartEncoderMonitor,
-)
 
 import pvc.lib.ansiprint as ansiprint
 from pvc.lib.common import UploadProgressBar, call_api, get_wait_retdata
@@ -1212,6 +1208,12 @@ def ceph_volume_upload(config, pool, volume, image_format, image_file):
     bar = UploadProgressBar(
         image_file, end_message="Parsing file on remote side...", end_nl=False
     )
+
+    from requests_toolbelt.multipart.encoder import (
+        MultipartEncoder,
+        MultipartEncoderMonitor,
+    )
+
     upload_data = MultipartEncoder(
         fields={
             "file": ("filename", open(image_file, "rb"), "application/octet-stream")

client-cli/pyproject.toml

@@ -0,0 +1,21 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pvc"
+version = "0.9.107"
+dependencies = [
+    "Click",
+    "PyYAML",
+    "lxml",
+    "colorama",
+    "requests",
+    "requests-toolbelt",
+]
+
+[tool.setuptools]
+packages = ["pvc.cli", "pvc.lib"]
+
+[project.scripts]
+pvc = "pvc.cli.cli:cli"

client-cli/setup.py

@@ -1,20 +0,0 @@
-from setuptools import setup
-
-setup(
-    name="pvc",
-    version="0.9.107",
-    packages=["pvc.cli", "pvc.lib"],
-    install_requires=[
-        "Click",
-        "PyYAML",
-        "lxml",
-        "colorama",
-        "requests",
-        "requests-toolbelt",
-    ],
-    entry_points={
-        "console_scripts": [
-            "pvc = pvc.cli.cli:cli",
-        ],
-    },
-)

daemon-common/cluster.py

@@ -496,6 +496,7 @@ def getClusterInformation(zkhandler):
 
     # Format the status data
     cluster_information = {
+        "cluster_name": zkhandler.read("base.config"),
         "cluster_health": getClusterHealthFromFaults(zkhandler, faults_data),
         "node_health": getNodeHealth(zkhandler, node_list),
         "maintenance": maintenance_state,

daemon-common/common.py

@@ -1212,3 +1212,7 @@ def get_detect_device(detect_string):
         return device
     else:
         return None
+
+
+def translate_domains_to_names(zkhandler, domain_list):
+    return list(zkhandler.read_many([("domain.name", d) for d in domain_list]))

daemon-common/node.py

@@ -142,7 +142,9 @@ def getNodeInformation(zkhandler, node_name):
     node_mem_free = int(_node_mem_free)
     node_load = float(_node_load)
     node_domains_count = int(_node_domains_count)
-    node_running_domains = _node_running_domains.split()
+    node_running_domains = common.translate_domains_to_names(
+        zkhandler, _node_running_domains.split()
+    )
 
     try:
         node_health = int(_node_health)

debian/compat

@@ -1 +1 @@
-9
+13

debian/rules

@@ -7,13 +7,14 @@ export DH_VERBOSE = 1
 	dh $@ --with python3
 
 override_dh_python3:
-	cd $(CURDIR)/client-cli; pybuild --system=distutils --dest-dir=../debian/pvc-client-cli/
+	cd $(CURDIR)/client-cli; pybuild --system=pyproject --dest-dir=../debian/pvc-client-cli/
 	mkdir -p debian/pvc-client-cli/usr/lib/python3
 	mv debian/pvc-client-cli/usr/lib/python3*/* debian/pvc-client-cli/usr/lib/python3/
 	rm -r $(CURDIR)/client-cli/.pybuild $(CURDIR)/client-cli/pvc.egg-info
 
 override_dh_auto_clean:
-	find . -name "__pycache__" -o -name ".pybuild" -exec rm -fr {} + || true
+	find $(CURDIR) -name "__pycache__" -o -name ".pybuild" -exec rm -fr {} + || true
+	rm -r $(CURDIR)/client-cli/build
 
 # If you need to rebuild the Sphinx documentation
 # Add spinxdoc to the dh --with line

health-daemon/pvchealthd/Daemon.py

@@ -64,6 +64,7 @@ def entrypoint():
     logger.out("|--------------------------------------------------------------|")
     logger.out("| Parallel Virtual Cluster health daemon v{0: <20} |".format(version))
     logger.out("| Debug: {0: <53} |".format(str(config["debug"])))
+    logger.out("| Cluster: {0: <51} |".format(config["cluster_name"]))
     logger.out("| FQDN: {0: <54} |".format(config["node_fqdn"]))
     logger.out("| Host: {0: <54} |".format(config["node_hostname"]))
     logger.out("| ID: {0: <56} |".format(config["node_id"]))

node-daemon/pvcnoded/Daemon.py

@@ -83,6 +83,7 @@ def entrypoint():
     logger.out("|--------------------------------------------------------------|")
     logger.out("| Parallel Virtual Cluster node daemon v{0: <22} |".format(version))
     logger.out("| Debug: {0: <53} |".format(str(config["debug"])))
+    logger.out("| Cluster: {0: <51} |".format(config["cluster_name"]))
     logger.out("| FQDN: {0: <54} |".format(config["node_fqdn"]))
     logger.out("| Host: {0: <54} |".format(config["node_hostname"]))
     logger.out("| ID: {0: <56} |".format(config["node_id"]))
@@ -301,6 +302,9 @@ def entrypoint():
     # Set up this node in Zookeeper
     pvcnoded.util.zookeeper.setup_node(logger, config, zkhandler)
 
+    # Set the cluster name in Zookeeper
+    zkhandler.write([("base.config", config["cluster_name"])])
+
     # Check that the primary node key exists and create it with us as primary if not
     try:
         current_primary = zkhandler.read("base.config.primary_node")