Un-hard-code SSH key name

address changes

.drone.yml

@@ -0,0 +1,14 @@
+---
+kind: pipeline
+name: publish docker image
+steps:
+  - name: build and publish
+    image: plugins/docker
+    settings:
+      username:
+        from_secret: docker_reg_username_3wc
+      password:
+        from_secret: docker_reg_passwd_3wc
+      repo: 3wordchant/capsul-flask
+      tags: latest
+

Dockerfile

@@ -0,0 +1,48 @@
+FROM python:3.8-alpine as build
+
+RUN apk add --no-cache \
+    build-base \
+    gcc \
+    gettext \
+    git \
+    jpeg-dev \
+    libffi-dev \
+    libjpeg \
+    musl-dev \
+    postgresql-dev \
+    python3-dev \
+    zlib-dev
+
+RUN mkdir -p /app/{code,venv}
+WORKDIR /app/code
+COPY Pipfile Pipfile.lock /app/code/
+
+RUN python3 -m venv /app/venv
+RUN pip install pipenv setuptools
+ENV PATH="/app/venv/bin:$PATH" VIRTUAL_ENV="/app/venv"
+RUN pip install wheel cppy
+# Install dependencies into the virtual environment with Pipenv
+RUN pipenv install --deploy --verbose
+
+FROM python:3.8-alpine
+
+RUN apk add --no-cache \
+    cloud-utils \
+    libjpeg \
+    libpq \
+    libstdc++ \
+    libvirt-client \
+    openssh-client \
+    virt-install
+
+COPY . /app/code/
+WORKDIR /app/code
+
+COPY --from=build /app/venv /app/venv
+ENV PATH="/app/venv/bin:$PATH" VIRTUAL_ENV="/app/venv"
+
+CMD ["gunicorn", "--bind", "0.0.0.0:5000", "-k", "gevent", "--worker-connections", "1000", "app:app"]
+
+VOLUME /app/code
+
+EXPOSE 5000

capsulflask/__init__.py

@@ -26,8 +26,24 @@ class StdoutMockFlaskMail:
     def send(self, message: Message):
       current_app.logger.info(f"Email would have been sent if configured:\n\nto: {','.join(message.recipients)}\nsubject: {message.subject}\nbody:\n\n{message.body}\n\n")
 
+
 load_dotenv(find_dotenv())
 
+for var_name in [
+  "SPOKE_HOST_TOKEN", "HUB_TOKEN", "STRIPE_SECRET_KEY",
+  "BTCPAY_PRIVATE_KEY", "MAIL_PASSWORD"
+]:
+  var = os.environ.get(f"{var_name}_FILE")
+  if not var:
+    continue
+
+  if not os.path.isfile(var):
+    continue
+
+  with open(var) as secret_file:
+    os.environ[var_name] = secret_file.read().rstrip('\n')
+  del os.environ[f"{var_name}_FILE"]
+
 app = Flask(__name__)
 
 app.config.from_mapping(
@@ -56,7 +72,7 @@ app.config.from_mapping(
 
   MAIL_SERVER=os.environ.get("MAIL_SERVER", default=""),
   MAIL_PORT=os.environ.get("MAIL_PORT", default="465"),
-  MAIL_USE_TLS=os.environ.get("MAIL_USE_TLS", default="True").lower() in ['true', '1', 't', 'y', 'yes'],
+  MAIL_USE_TLS=os.environ.get("MAIL_USE_TLS", default="False").lower() in ['true', '1', 't', 'y', 'yes'],
   MAIL_USE_SSL=os.environ.get("MAIL_USE_SSL", default="True").lower() in ['true', '1', 't', 'y', 'yes'],
   MAIL_USERNAME=os.environ.get("MAIL_USERNAME", default=""),
   MAIL_PASSWORD=os.environ.get("MAIL_PASSWORD", default=""),

capsulflask/admin.py

@@ -17,9 +17,9 @@ bp = Blueprint("admin", __name__, url_prefix="/admin")
 @bp.route("/")
 @admin_account_required
 def index():
-  hosts = get_model().list_hosts_with_networks()
-  vms_by_host_and_network = get_model().all_non_deleted_vms_by_host_and_network()
-  network_display_width_px = float(500);
+  hosts = get_model().list_hosts_with_networks(None)
+  vms_by_host_and_network = get_model().non_deleted_vms_by_host_and_network(None)
+  network_display_width_px = float(270)
   #operations = get_model().list_all_operations()
 
   display_hosts = []
@@ -35,26 +35,18 @@ def index():
     display_host = dict(name=host_id, networks=value['networks'])
 
     for network in display_host['networks']:
-      ipv4_network = ipaddress.ip_network(network["public_ipv4_cidr_block"], False)
-      network_start_int = -1
-      network_end_int = -1
-      i = 0
-      for ipv4_address in ipv4_network: 
-        i += 1
-        if i > 2:
-          if network_start_int == -1:
-            network_start_int = int(ipv4_address)
-          
-          network_end_int = int(ipv4_address)
-      
+
+      network_start_int = int(ipaddress.ip_address(network["public_ipv4_first_usable_ip"]))
+      network_end_int = int(ipaddress.ip_address(network["public_ipv4_last_usable_ip"]))
+
       network['allocations'] = []
-      network_addresses_width = float((network_end_int-network_start_int))
+      network_addresses_width = float((network_end_int-network_start_int)+1)
 
       if host_id in vms_by_host_and_network:
         if network['network_name'] in vms_by_host_and_network[host_id]:
           for vm in vms_by_host_and_network[host_id][network['network_name']]:
             ip_address_int = int(ipaddress.ip_address(vm['public_ipv4']))
-            if network_start_int < ip_address_int and ip_address_int < network_end_int:
+            if network_start_int <= ip_address_int and ip_address_int <= network_end_int:
               allocation = f"{host_id}_{network['network_name']}_{len(network['allocations'])}"
               inline_styles.append(
                 f"""

capsulflask/console.py

@@ -245,20 +245,17 @@ def create():
 
     if len(errors) == 0:
       id = make_capsul_id()
-      get_model().create_vm(
-        email=session["account"], 
-        id=id, 
-        size=size, 
-        os=os,
-        ssh_authorized_keys=list(map(lambda x: x["name"], posted_keys))
-      )
+      # we can't create the vm record in the DB yet because its IP address needs to be allocated first.
+      # so it will be created when the allocation happens inside the hub_api.
       current_app.config["HUB_MODEL"].create(
         email = session["account"],
         id=id,
+        os=os,
+        size=size,
         template_image_file_name=operating_systems[os]['template_image_file_name'],
         vcpus=vm_sizes[size]['vcpus'],
         memory_mb=vm_sizes[size]['memory_mb'],
-        ssh_authorized_keys=list(map(lambda x: x["content"], posted_keys))
+        ssh_authorized_keys=list(map(lambda x: dict(name=x['name'], content=x['content']), posted_keys)) 
       )
       
       return redirect(f"{url_for('console.index')}?created={id}")

capsulflask/db.py

@@ -43,7 +43,7 @@ def init_app(app, is_running_server):
   hasSchemaVersionTable = False
   actionWasTaken = False
   schemaVersion = 0
-  desiredSchemaVersion = 16
+  desiredSchemaVersion = 18
 
   cursor = connection.cursor()
 

capsulflask/db_model.py

@@ -1,4 +1,6 @@
 
+import re
+
 # I was never able to get this type hinting to work correctly 
 # from psycopg2.extensions import connection as Psycopg2Connection, cursor as Psycopg2Cursor
 from nanoid import generate
@@ -56,8 +58,18 @@ class DBModel:
 
   #     ------    VM & ACCOUNT MANAGEMENT     ---------  
 
-  def all_non_deleted_vms_by_host_and_network(self):
-    self.cursor.execute("SELECT id, host, network_name, public_ipv4, public_ipv6 FROM vms WHERE deleted IS NULL")
+  def non_deleted_vms_by_host_and_network(self, host_id):
+    query = "SELECT id, host, network_name, public_ipv4, public_ipv6 FROM vms WHERE deleted IS NULL"
+    if host_id is None: 
+      self.cursor.execute(query)
+    else:
+      if not re.match(r"^[a-zA-Z0-9_-]+$", host_id):
+        raise ValueError(f"host_id \"{host_id}\" must match \"^[a-zA-Z0-9_-]+\"")
+
+      # I kept getting "TypeError: not all arguments converted during string formatting"
+      # when I was trying to mix python string templating with psycopg2 safe parameter passing. 
+      # so i just did all of it in python and check the user-provided data for safety myself (no sql injection).
+      self.cursor.execute(f"{query} AND host = '{host_id}'")
 
     hosts = dict()
     for row in self.cursor.fetchall():
@@ -146,12 +158,12 @@ class DBModel:
       )
     self.connection.commit()
 
-  def create_vm(self, email, id, size, os, ssh_authorized_keys):
+  def create_vm(self, email, id, size, os, host, network_name, public_ipv4, ssh_authorized_keys):
     self.cursor.execute(""" 
-      INSERT INTO vms (email, id, size, os)
-      VALUES  (%s, %s, %s, %s)
+      INSERT INTO vms (email, id, size, os, host, network_name, public_ipv4)
+      VALUES  (%s, %s, %s, %s, %s, %s, %s)
       """, 
-      (email, id, size, os)
+      (email, id, size, os, host, network_name, public_ipv4)
     )
     
     for ssh_authorized_key in ssh_authorized_keys:
@@ -318,18 +330,35 @@ class DBModel:
 
   #     ------    HOSTS     ---------  
 
-  def list_hosts_with_networks(self):
-    self.cursor.execute("""
-    SELECT hosts.id, hosts.last_health_check, host_network.network_name, host_network.public_ipv4_cidr_block FROM hosts
+  def list_hosts_with_networks(self, host_id: str):
+    query = """
+    SELECT hosts.id, hosts.last_health_check, host_network.network_name, 
+    host_network.public_ipv4_cidr_block, host_network.public_ipv4_first_usable_ip, host_network.public_ipv4_last_usable_ip
+    FROM hosts
     JOIN host_network ON host_network.host = hosts.id
-    """)
+    """
+    if host_id is None: 
+      self.cursor.execute(query)
+    else:
+      if not re.match(r"^[a-zA-Z0-9_-]+$", host_id):
+        raise ValueError(f"host_id \"{host_id}\" must match \"^[a-zA-Z0-9_-]+\"")
+
+      # I kept getting "TypeError: not all arguments converted during string formatting"
+      # when I was trying to mix python query string templating with psycopg2 safe parameter passing. 
+      # so i just did all of it in python and check the user-provided data for safety myself (no sql injection).
+      self.cursor.execute(f"{query} WHERE hosts.id = '{host_id}'")
 
     hosts = dict()
     for row in self.cursor.fetchall():
       if row[0] not in hosts:
         hosts[row[0]] = dict(last_health_check=row[1], networks=[])
 
-      hosts[row[0]]["networks"].append(dict(network_name=row[2], public_ipv4_cidr_block=row[3]))
+      hosts[row[0]]["networks"].append(dict(
+        network_name=row[2], 
+        public_ipv4_cidr_block=row[3], 
+        public_ipv4_first_usable_ip=row[4], 
+        public_ipv4_last_usable_ip=row[5]
+      ))
 
     return hosts
 
@@ -379,6 +408,13 @@ class DBModel:
     self.connection.commit()
     return operation_id
 
+  def update_operation(self, operation_id: int, payload: str):
+    self.cursor.execute(
+      "UPDATE operations SET payload = %s WHERE id = %s", 
+      (payload, operation_id)
+    )
+    self.connection.commit()
+
   def update_host_operation(self, host_id: str, operation_id: int, assignment_status: str, result: str):
     if assignment_status and not result:
       self.cursor.execute(
@@ -405,9 +441,20 @@ class DBModel:
     else:
       return None
 
-  def host_operation_exists(self, operation_id: int, host_id: str) -> bool:
-    self.cursor.execute("SELECT operation FROM host_operation WHERE host = %s AND operation = %s",(host_id, operation_id))
-    return len(self.cursor.fetchall()) != 0
+  def get_payload_json_from_host_operation(self, operation_id: int, host_id: str) -> str:
+    self.cursor.execute(
+      """
+        SELECT operations.payload FROM operations 
+          JOIN host_operation ON host_operation.operation = operations.id
+          WHERE host_operation.host = %s AND host_operation.operation = %s
+      """,
+      (host_id, operation_id)
+    )
+    row = self.cursor.fetchone()
+    if row:
+      return row[0]
+    else:
+      return None
 
   def claim_operation(self, operation_id: int, host_id: str) -> bool:
     # have to make a new cursor to set isolation level

capsulflask/hub_api.py

@@ -1,7 +1,9 @@
+import json
+import ipaddress
 
 from flask import Blueprint
 from flask import current_app
-from flask import request
+from flask import request, make_response
 from werkzeug.exceptions import abort
 
 from capsulflask.db import get_model
@@ -46,15 +48,134 @@ def heartbeat(host_id):
 @bp.route("/claim-operation/<int:operation_id>/<string:host_id>", methods=("POST",))
 def claim_operation(operation_id: int, host_id: str):
   if authorized_for_host(host_id):
-    exists = get_model().host_operation_exists(operation_id, host_id)
-    if not exists:
-      return abort(404, "host operation not found")
+    payload_json = get_model().get_payload_json_from_host_operation(operation_id, host_id)
+    if payload_json is None:
+      error_message = f"{host_id} can't claim operation {operation_id} because host_operation row not found"
+      current_app.logger.error(error_message)
+      return abort(404, error_message)
+
+    # right now if there is a can_claim_handler there needs to be a corresponding on_claimed_handler.
+    # this is sole-ly due to laziness in error handling.
+    can_claim_handlers = {
+      "create": can_claim_create,
+    }
+    on_claimed_handlers = {
+      "create": on_create_claimed,
+    }
+    error_message = ""
+    payload = None
+    payload_is_dict = False
+    payload_has_type = False
+    payload_has_valid_type = False
+    try:
+      payload = json.loads(payload_json)
+      payload_is_dict = isinstance(payload, dict)
+      payload_has_type = payload_is_dict and 'type' in payload
+      payload_has_valid_type = payload_has_type and payload['type'] in can_claim_handlers
+      
+      if not payload_is_dict:
+        error_message = "invalid json: expected an object"
+      elif not payload_has_type:
+        error_message = "invalid json: 'type' field is required"
+      elif not payload_has_valid_type:
+        error_message = f"invalid json: expected type \"{payload['type']}\" to be one of [{', '.join(can_claim_handlers.keys())}]"
+    except:
+      error_message = "could not parse payload as json"
+
+    if error_message != "":
+      error_message = f"{host_id} can't claim operation {operation_id} because {error_message}"
+      current_app.logger.error(error_message)
+      return abort(400, error_message)
+
+    # we will only return this payload as json if claiming succeeds, so might as well do this now...
+    payload['assignment_status'] = 'assigned'
+
+    # invoke the appropriate can_claim_handler for this operation type
+    result_tuple = can_claim_handlers[payload['type']](payload, host_id)
+    modified_payload = result_tuple[0]
+    error_message = result_tuple[1]
+
+    if error_message != "":
+      error_message = f"{host_id} can't claim operation {operation_id} because {error_message}"
+      current_app.logger.error(error_message)
+      return abort(400, error_message)
+
     claimed = get_model().claim_operation(operation_id, host_id)
     if claimed:
-      return "ok"
+      modified_payload_json = json.dumps(modified_payload)
+      get_model().update_operation(operation_id, modified_payload_json)
+      on_claimed_handlers[payload['type']](modified_payload, host_id)
+      
+      response = make_response(modified_payload_json)
+      response.headers.set("Content-Type", "application/json")
+
+      return response
     else:
-      return abort(409, "operation was already assigned to another host")
+      return abort(409, f"operation was already assigned to another host")
   else:
     current_app.logger.warning(f"/hub/claim-operation/{operation_id}/{host_id} returned 401: invalid token")
     return abort(401, "invalid host id or token")
 
+def can_claim_create(payload, host_id) -> (str, str):
+
+  hosts = get_model().list_hosts_with_networks(host_id)
+
+  if host_id not in hosts:
+    return "", f"the host \"{host_id}\" does not appear to have any networks."
+
+  networks = hosts[host_id]['networks']
+
+  vms_by_host_and_network = get_model().non_deleted_vms_by_host_and_network(host_id)
+
+  vms_by_network = dict()
+  if host_id in vms_by_host_and_network:
+    vms_by_network = vms_by_host_and_network[host_id]
+
+  allocated_ipv4_address = None
+  allocated_network_name = None
+  for network in networks:
+    vms = []
+    if network["network_name"] in vms_by_network:
+      vms = vms_by_network[network["network_name"]]
+
+    claimed_ipv4s = dict()
+    for vm in vms:
+      claimed_ipv4s[vm['public_ipv4']] = True
+
+
+    ipv4_network = ipaddress.ip_network(network["public_ipv4_cidr_block"], False)
+    ipv4_first_usable_ip = network["public_ipv4_first_usable_ip"]
+    ipv4_last_usable_ip = network["public_ipv4_last_usable_ip"]
+        
+    for ipv4_address in ipv4_network: 
+      within_usable_range = ipv4_first_usable_ip <= str(ipv4_address) and str(ipv4_address) <= ipv4_last_usable_ip
+      if within_usable_range and str(ipv4_address) not in claimed_ipv4s:
+        allocated_ipv4_address = str(ipv4_address)
+        break 
+
+    if allocated_ipv4_address is not None:
+      allocated_network_name = network["network_name"]
+      break
+        
+  if allocated_network_name is None or allocated_ipv4_address is None:
+    return "", f"host \"{host_id}\" does not have any avaliable IP addresses on any of its networks."
+
+  # payload["network_name"] = allocated_network_name
+  # hard-code the network name for now until we can fix the phantom dhcp lease issues.
+
+  payload["network_name"] = 'public3'
+  payload["public_ipv4"] = allocated_ipv4_address
+
+  return payload, ""
+
+def on_create_claimed(payload, host_id):
+  get_model().create_vm(
+    email=payload['email'], 
+    id=payload['id'], 
+    size=payload['size'], 
+    os=payload['os'],
+    host=host_id,
+    network_name=payload['network_name'],
+    public_ipv4=payload['public_ipv4'],
+    ssh_authorized_keys=list(map(lambda x: x["name"], payload['ssh_authorized_keys'])),
+  )

capsulflask/hub_model.py

@@ -36,7 +36,7 @@ class MockHub(VirtualizationInterface):
   def list_ids(self) -> list:
     return get_model().all_non_deleted_vm_ids()
 
-  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
+  def create(self, email: str, id: str, os: str, size: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
     validate_capsul_id(id)
     current_app.logger.info(f"mock create: {id} for {email}")
     sleep(1)
@@ -180,7 +180,7 @@ class CapsulFlaskHub(VirtualizationInterface):
 
     return to_return
 
-  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
+  def create(self, email: str, id: str, os: str, size: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
     validate_capsul_id(id)
     online_hosts = get_model().get_online_hosts()
     #current_app.logger.debug(f"hub_model.create(): ${len(online_hosts)} hosts")
@@ -188,6 +188,8 @@ class CapsulFlaskHub(VirtualizationInterface):
       type="create", 
       email=email, 
       id=id, 
+      os=os,
+      size=size,
       template_image_file_name=template_image_file_name, 
       vcpus=vcpus,
       memory_mb=memory_mb,
@@ -212,12 +214,13 @@ class CapsulFlaskHub(VirtualizationInterface):
       except:
         # no need to do anything here since if it cant be parsed then generic_operation will handle it.
         pass
+
+    if error_message != "":
+      raise ValueError(f"create capsul operation {operation_id} on {assigned_hosts} failed with {error_message}")
       
     if number_of_assigned != 1:
       assigned_hosts_string = ", ".join(assigned_hosts)
       raise ValueError(f"expected create capsul operation {operation_id} to be assigned to one host, it was assigned to {number_of_assigned} ({assigned_hosts_string})")
-    if error_message != "":
-      raise ValueError(f"create capsul operation {operation_id} on {assigned_hosts_string} failed with {error_message}")
       
 
   def destroy(self, email: str, id: str):

capsulflask/schema_migrations/16_up_managed_ips.sql

@@ -3,12 +3,12 @@ CREATE TABLE host_network (
   public_ipv4_cidr_block  TEXT NOT NULL,
   network_name       TEXT NOT NULL,
   host               TEXT NOT NULL REFERENCES hosts(id) ON DELETE RESTRICT,
-  PRIMARY KEY (host, network_name)
+  CONSTRAINT host_network_pkey PRIMARY KEY (host, network_name)
 );
 
-
 INSERT INTO host_network (host, network_name, public_ipv4_cidr_block) VALUES ('baikal', 'virbr1', '69.61.2.162/27'),
-                                                                             ('baikal', 'virbr2', '69.61.2.194/26');
+                                                                             ('baikal', 'virbr2', '69.61.2.194/26'),
+                                                                             ('baikal', 'virbr3', '69.61.38.193/26');
 ALTER TABLE vms RENAME COLUMN last_seen_ipv4 TO public_ipv4;
 ALTER TABLE vms RENAME COLUMN last_seen_ipv6 TO public_ipv6;
 ALTER TABLE vms ADD COLUMN network_name TEXT;
@@ -18,7 +18,8 @@ UPDATE vms SET network_name = 'virbr2' WHERE public_ipv4 >= '69.61.2.192';
 
 ALTER TABLE vms ALTER COLUMN network_name SET NOT NULL;
 
-ALTER TABLE vms ADD FOREIGN KEY (host, network_name) REFERENCES host_network(host, network_name) ON DELETE RESTRICT;
+ALTER TABLE vms ADD CONSTRAINT vms_host_network_name_fkey FOREIGN KEY (host, network_name) 
+                                               REFERENCES host_network(host, network_name) ON DELETE RESTRICT;
 
 
 UPDATE schemaversion SET version = 16;

capsulflask/schema_migrations/17_down_bridge_and_network_name.sql

@@ -0,0 +1,18 @@
+
+
+ALTER TABLE vms DROP CONSTRAINT vms_host_network_name_fkey;
+
+UPDATE host_network SET network_name = 'virbr1' WHERE virtual_bridge_name = "virbr1";
+UPDATE host_network SET network_name = 'virbr2' WHERE virtual_bridge_name = "virbr1";
+UPDATE host_network SET network_name = 'virbr3' WHERE virtual_bridge_name = "virbr2";
+
+UPDATE vms SET network_name = 'virbr1' WHERE network_name = "public1";
+UPDATE vms SET network_name = 'virbr2' WHERE network_name = "public2";
+UPDATE vms SET network_name = 'virbr3' WHERE network_name = "public3";
+
+ALTER TABLE host_network DROP COLUMN virtual_bridge_name;
+
+ALTER TABLE vms ADD CONSTRAINT vms_host_network_name_fkey FOREIGN KEY (host, network_name) 
+                                               REFERENCES host_network(host, network_name) ON DELETE RESTRICT;
+
+UPDATE schemaversion SET version = 16;

capsulflask/schema_migrations/17_up_bridge_and_network_name.sql

@@ -0,0 +1,26 @@
+
+
+ALTER TABLE vms DROP CONSTRAINT vms_host_network_name_fkey;
+
+ALTER TABLE host_network RENAME COLUMN network_name TO virtual_bridge_name;
+
+ALTER TABLE host_network ADD COLUMN network_name TEXT;
+
+UPDATE host_network SET network_name = 'public1' WHERE virtual_bridge_name = 'virbr1';
+UPDATE host_network SET network_name = 'public2' WHERE virtual_bridge_name = 'virbr2';
+UPDATE host_network SET network_name = 'public3' WHERE virtual_bridge_name = 'virbr3';
+
+UPDATE vms SET network_name = 'public1' WHERE network_name = 'virbr1';
+UPDATE vms SET network_name = 'public2' WHERE network_name = 'virbr2';
+UPDATE vms SET network_name = 'public3' WHERE network_name = 'virbr3';
+
+ALTER TABLE host_network ALTER COLUMN network_name SET NOT NULL;
+
+ALTER TABLE host_network DROP CONSTRAINT host_network_pkey;
+ALTER TABLE host_network ADD CONSTRAINT host_network_pkey PRIMARY KEY (host, network_name);
+
+ALTER TABLE vms ADD CONSTRAINT vms_host_network_name_fkey FOREIGN KEY (host, network_name) 
+                                               REFERENCES host_network(host, network_name) ON DELETE RESTRICT;
+
+UPDATE schemaversion SET version = 17;
+

capsulflask/schema_migrations/18_down_start_ip_end_ip.sql

@@ -0,0 +1,6 @@
+
+
+ALTER TABLE host_network DROP COLUMN public_ipv4_first_usable_ip;
+ALTER TABLE host_network DROP COLUMN public_ipv4_last_usable_ip;
+
+UPDATE schemaversion SET version = 17;

capsulflask/schema_migrations/18_up_start_ip_end_ip.sql

@@ -0,0 +1,25 @@
+
+
+ALTER TABLE host_network ADD COLUMN public_ipv4_first_usable_ip TEXT;
+ALTER TABLE host_network ADD COLUMN public_ipv4_last_usable_ip TEXT;
+
+-- public1, 69.61.2.162/27
+UPDATE host_network 
+SET public_ipv4_first_usable_ip = '69.61.2.163', public_ipv4_last_usable_ip = '69.61.2.190' 
+WHERE network_name = 'public1';
+
+-- public2, 69.61.2.194/26
+UPDATE host_network 
+SET public_ipv4_first_usable_ip = '69.61.2.195', public_ipv4_last_usable_ip = '69.61.2.254' 
+WHERE network_name = 'public2';
+
+-- public3, 69.61.38.193/26
+UPDATE host_network 
+SET public_ipv4_first_usable_ip = '69.61.38.194', public_ipv4_last_usable_ip = '69.61.38.254' 
+WHERE network_name = 'public3';
+
+ALTER TABLE host_network ALTER COLUMN public_ipv4_first_usable_ip SET NOT NULL;
+ALTER TABLE host_network ALTER COLUMN public_ipv4_last_usable_ip SET NOT NULL;
+
+UPDATE schemaversion SET version = 18;
+

capsulflask/shell_scripts/capacity-avaliable.sh

@@ -3,7 +3,7 @@
 # check available RAM and IPv4s
 
 ram_bytes_to_allocate="$1"
-ram_bytes_available=$(grep -E "^(size|memory_available_bytes)" /proc/spl/kstat/zfs/arcstats | awk '{sum+=$3} END {printf "%.0f", sum}')
+ram_bytes_available="$(($(grep Available /proc/meminfo | grep -o '[0-9]*') * 1024))"
 ram_bytes_remainder="$((ram_bytes_available - ram_bytes_to_allocate))"
 
 if echo "$ram_bytes_to_allocate" | grep -vqE "^[0-9]+$"; then
@@ -11,17 +11,17 @@ if echo "$ram_bytes_to_allocate" | grep -vqE "^[0-9]+$"; then
   exit 1
 fi
 
-# 20GB
-if [ "$ram_bytes_remainder" -le $((20 * 1024 * 1024 * 1024)) ]; then
+# 0.25GB
+if [ "$ram_bytes_remainder" -le $((1 * 1024 * 1024 * 1024 / 4)) ]; then
   echo "VM is requesting more RAM than $(hostname -f) has available."
   echo "Bytes requested: $ram_bytes_to_allocate"
   echo "Bytes available: $ram_bytes_available"
   exit 1
 fi
 
-ipv4_limit=28
-used_ips=$(grep ip-add "/var/lib/libvirt/dnsmasq/virbr1.status" | cut -d '"' -f 4)
-reserved_ips=$(cat "/var/lib/libvirt/dnsmasq/public1.hostsfile" | cut -d ',' -f 2)
+ipv4_limit=61
+used_ips=$(grep ip-add "/var/lib/libvirt/dnsmasq/virbr3.status" | cut -d '"' -f 4)
+reserved_ips=$(cat "/var/lib/libvirt/dnsmasq/public3.hostsfile" | cut -d ',' -f 2)
 total_addresses_used=$(printf "$used_ips\n$reserved_ips" | sort | uniq | wc -l)
 ipv4_count=$(printf "$total_addresses_used")
 

capsulflask/shell_scripts/create.sh

@@ -6,9 +6,12 @@
 
 vmname="$1"
 template_file="/tank/img/$2"
+qemu_tank_dir="/tank"
 vcpus="$3"
 memory="$4"
 pubkeys="$5"
+network_name="$6"
+public_ipv4="$7"
 root_volume_size="25G"
 
 if echo "$vmname" | grep -vqE '^capsul-[a-z0-9]{10}$'; then
@@ -38,40 +41,50 @@ echo "$pubkeys" | while IFS= read -r line; do
   fi
 done
 
-disk="/tank/vm/$vmname.qcow2"
-cdrom="/tank/vm/$vmname.iso"
-xml="/tank/vm/$vmname.xml"
+if echo "$network_name" | grep -vqE "^[a-zA-Z0-9_-]+"; then
+  echo "network_name \"$network_name\" must match ^[a-zA-Z0-9_-]+"
+  exit 1
+fi
+
+if echo "$public_ipv4" | grep -vqE "^[0-9.]+$"; then
+  echo "public_ipv4 \"$public_ipv4\" must match ^[0-9.]+$"
+  exit 1
+fi
+
+disk="$vmname.qcow2"
+cdrom="$vmname.iso"
+xml="$vmname.xml"
 
 if [ -f /tank/vm/$vmname.qcow2 ]; then
     echo "Randomly generated name matched an existing VM! Odds are like one in a billion. Buy a lotto ticket."
     exit 1
 fi
 
-cp "$template_file" "$disk"
+cp "$template_file" "/tank/vm/$disk"
 cp /tank/config/cyberia-cloudinit.yml /tmp/cloudinit.yml
 echo "$pubkeys" | while IFS= read -r line; do
   echo "      - $line" >> /tmp/cloudinit.yml
 done
 
-cloud-localds "$cdrom" /tmp/cloudinit.yml
+cloud-localds "/tank/vm/$cdrom" /tmp/cloudinit.yml
 
-qemu-img resize "$disk" "$root_volume_size"
+qemu-img resize "/tank/vm/$disk" "$root_volume_size"
 virt-install \
     --memory "$memory" \
     --vcpus "$vcpus" \
     --name "$vmname" \
-    --disk "$disk",bus=virtio \
-    --disk "$cdrom",device=cdrom \
+    --disk "$qemu_tank_dir/vm/$disk",bus=virtio \
+    --disk "$qemu_tank_dir/vm/$cdrom",device=cdrom \
     --os-type Linux \
     --os-variant generic \
     --virt-type kvm \
     --graphics vnc,listen=127.0.0.1 \
-    --network network=public1,filterref=clean-traffic,model=virtio \
+    --network network=$network_name,model=virtio \
     --import \
-    --print-xml > "$xml"
+    --print-xml > "/tank/vm/$xml"
 
-chmod 0600 "$xml" "$disk" "$cdrom"
-virsh define "$xml"
+chmod 0600 "/tank/vm/$xml" "/tank/vm/$disk" "/tank/vm/$cdrom"
+virsh define "/tank/vm/$xml"
 virsh start "$vmname"
 
 echo "success"

capsulflask/spoke_api.py

@@ -104,7 +104,7 @@ def handle_create(operation_id, request_body):
     current_app.logger.error(f"/hosts/operation returned 400: operation_id is required for create ")
     return abort(400, f"bad request; operation_id is required. try POST /spoke/operation/<id>")
 
-  parameters = ["email", "id", "template_image_file_name", "vcpus", "memory_mb", "ssh_authorized_keys"]
+  parameters = ["email", "id", "os", "size", "template_image_file_name", "vcpus", "memory_mb", "ssh_authorized_keys"]
   error_message = ""
   for parameter in parameters:
     if parameter not in request_body:
@@ -115,14 +115,28 @@ def handle_create(operation_id, request_body):
     return abort(400, f"bad request; {error_message}")
 
   # only one host should create the vm, so we first race to assign this create operation to ourselves.
-  # only one host will win this race
+  # only one host will win this race.
   authorization_header = f"Bearer {current_app.config['SPOKE_HOST_TOKEN']}"
   url = f"{current_app.config['HUB_URL']}/hub/claim-operation/{operation_id}/{current_app.config['SPOKE_HOST_ID']}"
   result = current_app.config['HTTP_CLIENT'].do_http_sync(url, body=None, authorization_header=authorization_header)
 
   assignment_status = ""
   if result.status_code == 200:
-    assignment_status = "assigned"
+    try:
+      assignment_info = json.loads(result.body)
+      if not isinstance(assignment_info, dict):
+        return abort(503, f"hub at '{url}' returned 200, but did not return assignment_info json object")
+      if 'network_name' not in assignment_info:
+        return abort(503, f"hub at '{url}' returned 200, but the returned assignment_info object did not include network_name")
+      if 'public_ipv4' not in assignment_info:
+        return abort(503, f"hub at '{url}' returned 200, but the returned assignment_info object did not include public_ipv4")
+
+      assignment_status = "assigned"
+      request_body['network_name'] = assignment_info['network_name']
+      request_body['public_ipv4'] = assignment_info['public_ipv4']
+    except:
+      return abort(503, f"hub at '{url}' returned 200, but did not return valid json")
+    
   elif result.status_code == 409:
     assignment_status = "assigned_to_other_host"
   else:
@@ -137,7 +151,9 @@ def handle_create(operation_id, request_body):
         template_image_file_name=request_body['template_image_file_name'],
         vcpus=request_body['vcpus'],
         memory_mb=request_body['memory_mb'],
-        ssh_authorized_keys=request_body['ssh_authorized_keys'],
+        ssh_authorized_keys=list(map(lambda x: x['content'], request_body['ssh_authorized_keys'])),
+        network_name=request_body['network_name'],
+        public_ipv4=request_body['public_ipv4'],
       )
     except:
       error_message = my_exec_info_message(sys.exc_info())
@@ -147,7 +163,11 @@ def handle_create(operation_id, request_body):
       params=  f"{params} vcpus='{request_body['vcpus'] if 'vcpus' in request_body else 'KeyError'}', "
       params=  f"{params} memory_mb='{request_body['memory_mb'] if 'memory_mb' in request_body else 'KeyError'}', "
       params=  f"{params} ssh_authorized_keys='{request_body['ssh_authorized_keys'] if 'ssh_authorized_keys' in request_body else 'KeyError'}', "
+      params=  f"{params} network_name='{request_body['network_name'] if 'network_name' in request_body else 'KeyError'}', "
+      params=  f"{params} public_ipv4='{request_body['public_ipv4'] if 'public_ipv4' in request_body else 'KeyError'}', "
+      
       current_app.logger.error(f"spoke_model.create({params}) failed: {error_message}")
+
       return jsonify(dict(assignment_status=assignment_status, error_message=error_message))
 
   return jsonify(dict(assignment_status=assignment_status))

capsulflask/spoke_model.py

@@ -14,28 +14,37 @@ from capsulflask.shared import VirtualizationInterface, VirtualMachine, validate
 
 
 class MockSpoke(VirtualizationInterface):
+
+  def __init__(self):
+    self.capsuls = dict()
+
   def capacity_avaliable(self, additional_ram_bytes):
     return True
 
   def get(self, id, get_ssh_host_keys):
     validate_capsul_id(id)
 
+    ipv4 = "1.1.1.1"
+    if id in self.capsuls:
+      ipv4 = self.capsuls[id]['public_ipv4']
+
     if get_ssh_host_keys:
       ssh_host_keys = json.loads("""[
         {"key_type":"ED25519", "content":"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIN8cna0zeKSKl/r8whdn/KmDWhdzuWRVV0GaKIM+eshh", "sha256":"V4X2apAF6btGAfS45gmpldknoDX0ipJ5c6DLfZR2ttQ"},
         {"key_type":"RSA", "content":"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCvotgzgEP65JUQ8S8OoNKy1uEEPEAcFetSp7QpONe6hj4wPgyFNgVtdoWdNcU19dX3hpdse0G8OlaMUTnNVuRlbIZXuifXQ2jTtCFUA2mmJ5bF+XjGm3TXKMNGh9PN+wEPUeWd14vZL+QPUMev5LmA8cawPiU5+vVMLid93HRBj118aCJFQxLgrdP48VPfKHFRfCR6TIjg1ii3dH4acdJAvlmJ3GFB6ICT42EmBqskz2MPe0rIFxH8YohCBbAbrbWYcptHt4e48h4UdpZdYOhEdv89GrT8BF2C5cbQ5i9qVpI57bXKrj8hPZU5of48UHLSpXG8mbH0YDiOQOfKX/Mt", "sha256":"ghee6KzRnBJhND2kEUZSaouk7CD6o6z2aAc8GPkV+GQ"},
         {"key_type":"ECDSA", "content":"ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLLgOoATz9R4aS2kk7vWoxX+lshK63t9+5BIHdzZeFE1o+shlcf0Wji8cN/L1+m3bi0uSETZDOAWMP3rHLJj9Hk=", "sha256":"aCYG1aD8cv/TjzJL0bi9jdabMGksdkfa7R8dCGm1yYs"}
       ]""")
-      return VirtualMachine(id, current_app.config["SPOKE_HOST_ID"], ipv4="1.1.1.1", state="running", ssh_host_keys=ssh_host_keys)
+      return VirtualMachine(id, current_app.config["SPOKE_HOST_ID"], ipv4=ipv4, state="running", ssh_host_keys=ssh_host_keys)
 
-    return VirtualMachine(id, current_app.config["SPOKE_HOST_ID"], ipv4="1.1.1.1", state="running")
+    return VirtualMachine(id, current_app.config["SPOKE_HOST_ID"], ipv4=ipv4, state="running")
 
   def list_ids(self) -> list:
     return get_model().all_non_deleted_vm_ids()
 
-  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
+  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list, network_name: str, public_ipv4: str):
     validate_capsul_id(id)
     current_app.logger.info(f"mock create: {id} for {email}")
+    self.capsuls[id] = dict(email=email, id=id, network_name=network_name, public_ipv4=public_ipv4)
     sleep(1)
 
   def destroy(self, email: str, id: str):
@@ -129,7 +138,7 @@ class ShellScriptSpoke(VirtualizationInterface):
     self.validate_completed_process(completedProcess)
     return list(map(lambda x: x.decode("utf-8"), completedProcess.stdout.splitlines() ))
 
-  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list):
+  def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_authorized_keys: list, network_name: str, public_ipv4: str):
     validate_capsul_id(id)
 
     if not re.match(r"^[a-zA-Z0-9/_.-]+$", template_image_file_name):
@@ -139,12 +148,18 @@ class ShellScriptSpoke(VirtualizationInterface):
       if not re.match(r"^(ssh|ecdsa)-[0-9A-Za-z+/_=@:. -]+$", ssh_authorized_key):
         raise ValueError(f"ssh_authorized_key \"{ssh_authorized_key}\" must match \"^(ssh|ecdsa)-[0-9A-Za-z+/_=@:. -]+$\"")
 
-    if vcpus < 1 or vcpus > 8:
+    if isinstance(vcpus, int) and (vcpus < 1 or vcpus > 8):
       raise ValueError(f"vcpus \"{vcpus}\" must match 1 <= vcpus <= 8")
 
-    if memory_mb < 512 or memory_mb > 16384:
+    if isinstance(memory_mb, int) and (memory_mb < 512 or memory_mb > 16384):
       raise ValueError(f"memory_mb \"{memory_mb}\" must match 512 <= memory_mb <= 16384")
 
+    if not re.match(r"^[a-zA-Z0-9_-]+$", network_name):
+      raise ValueError(f"network_name \"{network_name}\" must match \"^[a-zA-Z0-9_-]+\"")
+
+    if not re.match(r"^[0-9.]+$", public_ipv4):
+      raise ValueError(f"public_ipv4 \"{public_ipv4}\" must match \"^[0-9.]+$\"")
+
     ssh_keys_string = "\n".join(ssh_authorized_keys)
 
     completedProcess = run([
@@ -153,7 +168,9 @@ class ShellScriptSpoke(VirtualizationInterface):
       template_image_file_name,
       str(vcpus),
       str(memory_mb),
-      ssh_keys_string
+      ssh_keys_string,
+      network_name,
+      public_ipv4
     ], capture_output=True)
 
     self.validate_completed_process(completedProcess, email)
@@ -166,6 +183,8 @@ class ShellScriptSpoke(VirtualizationInterface):
       vcpus={str(vcpus)}
       memory={str(memory_mb)}
       ssh_authorized_keys={ssh_keys_string}
+      network_name={network_name}
+      public_ipv4={public_ipv4}
     """
 
     if not status == "success":

docker-compose.yml

@@ -0,0 +1,38 @@
+---
+version: "3.8"
+
+services:
+  app:
+    image: 3wordchant/capsul-flask:latest
+    build: .
+    volumes:
+      - "./:/app/code"
+      - "../tank:/tank"
+      - "/var/run/libvirt/libvirt-sock:/var/run/libvirt/libvirt-sock"
+    depends_on:
+      - db
+    ports:
+      - "5000:5000"
+    environment:
+      - "POSTGRES_CONNECTION_PARAMETERS=host=db port=5432 user=capsul password=capsul dbname=capsul"
+      - SPOKE_MODEL=shell-scripts
+        #- FLASK_DEBUG=1
+      - BASE_URL=http://localhost:5000
+      - ADMIN_PANEL_ALLOW_EMAIL_ADDRESSES=3wc.capsul@doesthisthing.work
+      - VIRSH_DEFAULT_CONNECT_URI=qemu:///system
+    # The image uses gunicorn by default, let's override it with Flask's
+    # built-in development server
+    command: ["flask", "run", "-h", "0.0.0.0", "-p", "5000"]
+    devices:
+      - "/dev/kvm:/dev/kvm"
+  db:
+    image: "postgres:9.6.5-alpine"
+    volumes:
+      - "postgres:/var/lib/postgresql/data"
+    environment:
+      POSTGRES_USER: capsul
+      POSTGRES_PASSWORD: capsul
+      POSTGRES_DB: capsul
+
+volumes:
+  postgres: