resource pool setup

balancer/util.py

@@ -3,6 +3,7 @@ from sredis.sredis import get_datacenter_token, rr_get
 from fastapi import HTTPException
 import requests
 import json
+from core.models import ResourcePoolSchema
 
 
 def proxy_datacenters(
@@ -21,25 +22,57 @@ def proxy_datacenters(
         server = balancer_fun()
     token = get_datacenter_token(username, server)
     url = f"{server}/{serverpath}"
-    t_resp = requests.request(
-        json=body,
-        method=method,
-        url=url,
-        allow_redirects=True,
-        verify=False,
-        headers={"Authorization": token},
-    )
-    if int(t_resp.status_code / 100) != 2:
-        raise HTTPException(
-            status_code=t_resp.status_code, detail="Remote server error"
+    try:
+        t_resp = requests.request(
+            json=body,
+            method=method,
+            url=url,
+            allow_redirects=True,
+            verify=False,
+            headers={"Authorization": token},
         )
-    if not t_resp.content:
-        return ORJSONResponse({"status": "ok"}, status_code=t_resp.status_code)
-    obj = json.loads(t_resp.content)
-    if type(obj) is list:
-        for o in obj:
-            o["datacenter"] = server
-    else:
-        obj["datacenter"] = server
-    response = ORJSONResponse(obj, status_code=t_resp.status_code)
-    return response
+        if int(t_resp.status_code / 100) != 2:
+            raise HTTPException(
+                status_code=t_resp.status_code, detail="Remote server error"
+            )
+        if not t_resp.content:
+            return ORJSONResponse({"status": "ok"}, status_code=t_resp.status_code)
+        obj = json.loads(t_resp.content)
+        if type(obj) is list:
+            for o in obj:
+                o["datacenter"] = server
+        else:
+            obj["datacenter"] = server
+        response = ORJSONResponse(obj, status_code=t_resp.status_code)
+        return response
+    except Exception:
+        raise HTTPException(status_code=500, detail="Remote server error")
+
+
+def create_vm_from_template(
+    datacenter: str, username: str, name: str, template_name: str
+):
+    token = get_datacenter_token(username, datacenter)
+    body = {"template_name": template_name, "username": username, "name": name}
+    try:
+        t_resp = requests.request(
+            json=body,
+            method="POST",
+            url=f"{datacenter}dashboard/acpi/bvm/",
+            allow_redirects=True,
+            verify=False,
+            headers={"Authorization": token},
+        )
+        if int(t_resp.status_code / 100) != 2:
+            raise HTTPException(
+                status_code=t_resp.status_code, detail="Remote server error"
+            )
+        obj = json.loads(t_resp.content)
+        obj["datacenter"] = datacenter
+        return obj
+    except Exception:
+        raise HTTPException(status_code=500, detail="Remote server error")
+
+
+def create_rp(username: str, rp: ResourcePoolSchema):
+    pass

core/models.py

@@ -25,3 +25,14 @@ class DataCenterSchema(BaseModel):
     url: str
     active: bool = False
     weight: float = 1.0
+
+
+class ResourcePoolSchema(BaseModel):
+    rpname: str = Field(min_length=3, max_length=50)
+    from_template: str = Field(default="")
+    num_vms: int = Field(default=1)
+
+
+class VMFromRP(BaseModel):
+    rpname: str = Field(min_length=3, max_length=50)
+    username: str = Field()

main.py

 from fastapi import FastAPI, Response, Body, Depends
 import os
 from typing import List
-from balancer.util import proxy_datacenters
+from balancer.util import proxy_datacenters, create_rp
 from sredis.sredis import (
     check_user,
     create_puser,
@@ -15,7 +15,13 @@ from sredis.sredis import (
 import logging
 import requests
 from fastapi_utils.tasks import repeat_every
-from core.models import User, Token, UserLoginSchema, DataCenterSchema
+from core.models import (
+    User,
+    Token,
+    UserLoginSchema,
+    DataCenterSchema,
+    ResourcePoolSchema,
+)
 from core.auth import signJWT
 from core.bearer import get_current_user, admin_user
 from redis_om import Migrator
@@ -31,6 +37,7 @@ app = FastAPI()
 add_datacenter("https://kappa1.fured.cloud.bme.hu")
 add_datacenter("https://kappa2.fured.cloud.bme.hu")
 add_datacenter("https://kappa3.fured.cloud.bme.hu")
+
 create_superpuser(
     User(username="admin", email="example@domain.com", password=os.getenv("ADMIN_PASS"))
 )
@@ -81,6 +88,13 @@ def proxy_post_ff(
     return proxy_datacenters(server_path, username, body=body, method="POST")
 
 
+@app.post("/rp/")
+def create_resource_pool(
+    username=Depends(get_current_user), rp: ResourcePoolSchema = Body(...)
+):
+    create_rp(username, rp)
+
+
 @app.post("/add_datacenter/")
 def create_datacenter(dc: DataCenterSchema = None, username=Depends(admin_user)):
     add_datacenter(dc.url)

sredis/models.py

@@ -13,3 +13,10 @@ class DataCenter(HashModel):
     name: str = Field(index=True)
     url: str = Field(index=True)
     active: bool = Field(index=True)
+
+
+class ResourcePool(HashModel):
+    rpname: str = Field(index=True)
+    owner: str = Field(default="")
+    datacenter: str = Field(default="")
+    id: int = Field()

sredis/sredis.py

@@ -7,10 +7,17 @@ from core.models import User, DataCenterSchema
 from core.auth import hash_pass
 from fastapi import HTTPException
 import random
+import logging
+
+logger = logging.getLogger(__name__)
 
 
 def get_status(datacenter_url: str):
-    resp = requests.request(method="GET", url=datacenter_url, verify=False)
+    logger.info(f"Health check datacenter '{datacenter_url}'")
+    try:
+        resp = requests.request(method="GET", url=datacenter_url, verify=False)
+    except Exception:
+        return False
     return int(resp.status_code / 100) == 2
 
 
@@ -18,7 +25,7 @@ r = redis.Redis(host="localhost", port=6379, db=0, decode_responses=True)
 
 
 def reset():
-    print("Reset OK")
+    logging.info("Clean settings")
     r.set("datacenters_cnt", 1)
     all_keys = r.hgetall("datacenters_hash")
     if all_keys.keys():
@@ -33,10 +40,13 @@ def reset():
 
 def update_status(datacenter):
     status = "OK" if get_status(datacenter_url=datacenter) is True else "Wrong"
+    if status == "Wrong":
+        logging.warning(f"{datacenter} is inactive status")
     r.hset("datacenter_status", datacenter, status)
 
 
 def update_datacenter_status():
+    logging.info("Update datacenters status")
     all_keys = r.hgetall("datacenters_hash")
     for dc in all_keys.values():
         update_status(datacenter=dc)