Avoid verifying SSL on local connections

Since these will almost always connect to an IP rather than a "real"
hostname, don't verify the SSL cert (if applicable). Also allow the
overriding of SSL verification via an environment variable.

As a consequence, to reduce spam, SSL warnings are disabled for urllib3.
Instead, we warn in the "Using cluster" output whenever verification is
disabled.

client-cli/cli_lib/common.py

@@ -26,6 +26,7 @@ import math
 import time
 import requests
 import click
+from urllib3 import disable_warnings
 
 def format_bytes(size_bytes):
     byte_unit_matrix = {
@@ -125,13 +126,15 @@ def call_api(config, operation, request_uri, headers={}, params=None, data=None,
         headers['X-Api-Key'] = config['api_key']
 
     # Determine the request type and hit the API
+    disable_warnings()
     try:
         if operation == 'get':
             response = requests.get(
                 uri,
                 headers=headers,
                 params=params,
-                data=data
+                data=data,
+                verify=config['verify_ssl']
             )
         if operation == 'post':
             response = requests.post(
@@ -139,7 +142,8 @@ def call_api(config, operation, request_uri, headers={}, params=None, data=None,
                 headers=headers,
                 params=params,
                 data=data,
-                files=files
+                files=files,
+                verify=config['verify_ssl']
             )
         if operation == 'put':
             response = requests.put(
@@ -147,21 +151,24 @@ def call_api(config, operation, request_uri, headers={}, params=None, data=None,
                 headers=headers,
                 params=params,
                 data=data,
-                files=files
+                files=files,
+                verify=config['verify_ssl']
             )
         if operation == 'patch':
             response = requests.patch(
                 uri,
                 headers=headers,
                 params=params,
-                data=data
+                data=data,
+                verify=config['verify_ssl']
             )
         if operation == 'delete':
             response = requests.delete(
                 uri,
                 headers=headers,
                 params=params,
-                data=data
+                data=data,
+                verify=config['verify_ssl']
             )
     except Exception as e:
         message = 'Failed to connect to the API: {}'.format(e)

client-cli/pvc.py

@@ -106,6 +106,10 @@ def get_config(store_data, cluster=None):
     config['api_scheme'] = scheme
     config['api_key'] = api_key
     config['api_prefix'] = prefix
+    if cluster == 'local':
+        config['verify_ssl'] = False
+    else:
+        config['verify_ssl'] = bool(strtobool(os.environ.get('PVC_CLIENT_VERIFY_SSL', 'True')))
 
     return config
 
@@ -3626,11 +3630,16 @@ def cli(_cluster, _debug, _quiet):
         config['debug'] = _debug
 
         if not _quiet:
+            if config['api_scheme'] == 'https' and not config['verify_ssl']:
+                ssl_unverified_msg=' (unverified)'
+            else:
+                ssl_unverified_msg=''
             click.echo(
-                'Using cluster "{}" - Host: "{}"  Scheme: "{}"  Prefix: "{}"'.format(
+                'Using cluster "{}" - Host: "{}"  Scheme: "{}{}"  Prefix: "{}"'.format(
                     config['cluster'],
                     config['api_host'],
                     config['api_scheme'],
+                    ssl_unverified_msg,
                     config['api_prefix']
                 ),
                 err=True