Added CloudStack (exoscale) provider setup

Author: summerisgone

app/server.py

@@ -45,6 +45,12 @@
 except ImportError:
     HAS_AZURE_LIBRARIES = False
 
+try:
+    from cs import AIOCloudStack, CloudStackApiException
+    HAS_CS_LIBRARIES = True
+except ImportError:
+    HAS_CS_LIBRARIES = False
+
 routes = web.RouteTableDef()
 PROJECT_ROOT = dirname(dirname(__file__))
 pool = None
@@ -322,97 +328,53 @@ async def linode_regions(_):
 
 @routes.get('/cloudstack_config')
 async def get_cloudstack_config(_):
-    response = {'has_secret': False}
-    if 'CLOUDSTACK_CONFIG' in os.environ:
-        try:
-            open(os.environ['CLOUDSTACK_CONFIG'], 'r').read()
-            response['has_secret'] = True
-        except IOError:
-            pass
-    # check default path
-    default_path = expanduser(join('~', '.cloudstack.ini'))
-    try:
-        open(default_path, 'r').read()
-        response['has_secret'] = True
-    except IOError:
-        pass
+    if not HAS_REQUESTS:
+        return web.json_response({'error': 'missing_requests'}, status=400)
+    if not HAS_CS_LIBRARIES:
+        return web.json_response({'error': 'missing_cloudstack'}, status=400)
+    response = {'has_secret': _read_cloudstack_config() is not None}
     return web.json_response(response)
 
 
-@routes.post('/cloudstack_config')
-async def post_cloudstack_config(request):
-    data = await request.json()
-    with open(join(PROJECT_ROOT, 'cloudstack.ini'), 'w') as f:
-        try:
-            config = data.config_text
-        except Exception as e:
-            return web.json_response({'error': {
-                'code': type(e).__name__,
-                'message': e,
-            }}, status=400)
-        else:
-            f.write(config)
-            return web.json_response({'ok': True})
-
-
-def _get_cloudstack_config(path=None):
-    if path:
-        try:
-            return open(os.environ['CLOUDSTACK_CONFIG'], 'r').read()
-        except IOError:
-            pass
-
+def _read_cloudstack_config():
     if 'CLOUDSTACK_CONFIG' in os.environ:
         try:
             return open(os.environ['CLOUDSTACK_CONFIG'], 'r').read()
         except IOError:
             pass
-
+    # check default path
     default_path = expanduser(join('~', '.cloudstack.ini'))
-    return open(default_path, 'r').read()
-
-
-def _sign(command, secret):
-    """Adds the signature bit to a command expressed as a dict"""
-    # order matters
-    arguments = sorted(command.items())
-
-    # urllib.parse.urlencode is not good enough here.
-    # key contains should only contain safe content already.
-    # safe="*" is required when producing the signature.
-    query_string = "&".join("=".join((key, quote(value, safe="*")))
-                            for key, value in arguments)
-
-    # Signing using HMAC-SHA1
-    digest = hmac.new(
-        secret.encode("utf-8"),
-        msg=query_string.lower().encode("utf-8"),
-        digestmod=hashlib.sha1).digest()
-
-    signature = base64.b64encode(digest).decode("utf-8")
-
-    return dict(command, signature=signature)
+    try:
+        return open(default_path, 'r').read()
+    except IOError:
+        pass
+    return None
 
 
-@routes.get('/cloudstack_regions')
+@routes.post('/cloudstack_regions')
 async def cloudstack_regions(request):
-    data = {} #await request.json()
+    data = await request.json()
+    client_config = data.get('token')
     config = configparser.ConfigParser()
-    config.read_string(_get_cloudstack_config(data.get('cs_config')))
+    config.read_string(_read_cloudstack_config() or client_config)
     section = config[config.sections()[0]]
-
-    compute_endpoint = section.get('endpoint', '')
-    api_key = section.get('key', '')
-    api_secret = section.get('secret', '')
-    params = _sign({
-        "command": "listZones",
-        "apikey": api_key}, api_secret)
-    query_string = urlencode(params)
-
-    async with ClientSession() as session:
-        async with session.get(f'{compute_endpoint}?{query_string}') as r:
-            json_body = await r.json()
-            return web.json_response(json_body)
+    client = AIOCloudStack(**section)
+    try:
+        zones = await client.listZones(fetch_list=True)
+    except CloudStackApiException as resp:
+        return web.json_response({
+            'cloud_stack_error': resp.error
+        }, status=400)
+    # if config was passed from client, save it after successful zone retrieval
+    if _read_cloudstack_config() is None:
+        path = os.environ['CLOUDSTACK_CONFIG'] or expanduser(join('~', '.cloudstack.ini'))
+        with open(path, 'w') as f:
+            try:
+                f.write(client_config)
+            except IOError as e:
+                return web.json_response({'error': 'can not save config file'}, status=400)
+
+    return web.json_response(zones)
 
 
 app = web.Application()

app/static/provider-cloudstack.vue

@@ -1,18 +1,29 @@
 <template>
   <div>
-    <div v-if="ui_token_from_env">
-      <div v-if="ui_token_from_env" class="form-text alert alert-success" role="alert">
-        The config file was found on your system
-      </div>
+    <div v-if="ui_token_from_env" class="form-text alert alert-success" role="alert">
+      The config file was found on your system
     </div>
-    <div class="form-group" v-else>
-      
+    <div v-else class="form-group">
+      <label>
+        Enter your cloudstack.ini file contents below, it will be saved to your system.
+      </label>
+      <p>Example config file format (clickable):</p>
+      <pre class="example" v-on:click="cs_config = ui_example_cfg">{{ ui_example_cfg }}</pre>
+      <textarea v-model="cs_config"
+                v-bind:disabled="ui_loading_check"
+                v-on:blur="load_regions"
+                class="form-control"
+                rows="5"></textarea>
+      <div v-if="ui_region_options.length > 0 && !ui_token_from_env" class="form-text alert alert-success" role="alert">
+        The config file was saved on your system
+      </div>
     </div>
     <region-select v-model="region"
       v-bind:options="ui_region_options"
       v-bind:loading="ui_loading_check || ui_loading_regions"
       v-bind:error="ui_region_error">
     </region-select>
+
     <button v-on:click="submit"
       v-bind:disabled="!is_valid" class="btn btn-primary" type="button">Next</button>
   </div>
@@ -25,6 +36,11 @@ module.exports = {
       cs_config: null,
       region: null,
       // helper variables
+      ui_example_cfg: '[exoscale]\n' +
+          'endpoint = https://api.exoscale.com/compute\n' +
+          'key = API Key here\n' +
+          'secret = Secret key here\n' +
+          'timeout = 30',
       ui_loading_check: false,
       ui_loading_regions: false,
       ui_region_error: null,
@@ -34,7 +50,7 @@ module.exports = {
   },
   computed: {
     is_valid() {
-      return (this.ui_config_uploaded || this.ui_token_from_env) && this.region;
+      return (this.cs_config || this.ui_token_from_env) && this.region;
     }
   },
   created: function() {
@@ -76,7 +92,7 @@ module.exports = {
             throw new Error(r.status);
           })
           .then((data) => {
-            this.ui_region_options = data.regions.map(i => ({key: i.slug, value: i.name}));
+            this.ui_region_options = data.map(i => ({key: i.name, value: i.name}));
           })
           .catch((err) => {
             this.ui_region_error = err;
@@ -104,3 +120,9 @@ module.exports = {
   }
 };
 </script>
+
+<style scoped>
+.example {
+  cursor: pointer;
+}
+</style>

app/static/provider-setup.vue

@@ -66,7 +66,8 @@ module.exports = {
     'scaleway': window.httpVueLoader('/static/provider-scaleway.vue'),
     'hetzner': window.httpVueLoader('/static/provider-hetzner.vue'),
     'azure': window.httpVueLoader('/static/provider-azure.vue'),
-    'linode': window.httpVueLoader('/static/provider-linode.vue')
+    'linode': window.httpVueLoader('/static/provider-linode.vue'),
+    'cloudstack': window.httpVueLoader('/static/provider-cloudstack.vue')
   }
 };
 </script>