215 lines
8.9 KiB
YAML
215 lines
8.9 KiB
YAML
# services/comms/synapse-admin-ensure-job.yaml
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: synapse-admin-ensure-3
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namespace: comms
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spec:
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backoffLimit: 0
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ttlSecondsAfterFinished: 3600
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template:
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spec:
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serviceAccountName: comms-secrets-ensure
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restartPolicy: Never
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affinity:
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nodeAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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nodeSelectorTerms:
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- matchExpressions:
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- key: node-role.kubernetes.io/worker
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operator: Exists
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preferredDuringSchedulingIgnoredDuringExecution:
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- weight: 100
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preference:
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matchExpressions:
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- key: kubernetes.io/arch
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operator: In
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values: ["arm64"]
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containers:
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- name: ensure
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image: python:3.11-slim
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env:
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- name: VAULT_ADDR
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value: http://vault.vault.svc.cluster.local:8200
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- name: VAULT_ROLE
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value: comms-secrets
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- name: SYNAPSE_ADMIN_URL
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value: http://othrys-synapse-matrix-synapse.comms.svc.cluster.local:8008
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command:
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- /bin/sh
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- -c
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- |
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set -euo pipefail
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pip install --no-cache-dir psycopg2-binary bcrypt
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python - <<'PY'
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import json
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import os
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import secrets
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import string
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import time
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import urllib.error
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import urllib.request
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import bcrypt
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import psycopg2
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VAULT_ADDR = os.environ.get("VAULT_ADDR", "http://vault.vault.svc.cluster.local:8200").rstrip("/")
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VAULT_ROLE = os.environ.get("VAULT_ROLE", "comms-secrets")
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SA_TOKEN_PATH = "/var/run/secrets/kubernetes.io/serviceaccount/token"
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PGHOST = "postgres-service.postgres.svc.cluster.local"
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PGPORT = 5432
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PGDATABASE = "synapse"
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PGUSER = "synapse"
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def log(msg: str) -> None:
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print(msg, flush=True)
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def request_json(url: str, payload: dict | None = None) -> dict:
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data = None
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headers = {"Content-Type": "application/json"}
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if payload is not None:
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data = json.dumps(payload).encode("utf-8")
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req = urllib.request.Request(url, data=data, headers=headers, method="POST" if data else "GET")
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with urllib.request.urlopen(req, timeout=30) as resp:
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return json.loads(resp.read().decode("utf-8"))
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def vault_login() -> str:
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with open(SA_TOKEN_PATH, "r", encoding="utf-8") as f:
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jwt = f.read().strip()
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payload = {"jwt": jwt, "role": VAULT_ROLE}
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resp = request_json(f"{VAULT_ADDR}/v1/auth/kubernetes/login", payload)
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token = resp.get("auth", {}).get("client_token")
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if not token:
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raise RuntimeError("vault login failed")
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return token
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def vault_get(token: str, path: str) -> dict:
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req = urllib.request.Request(
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f"{VAULT_ADDR}/v1/kv/data/atlas/{path}",
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headers={"X-Vault-Token": token},
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)
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try:
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with urllib.request.urlopen(req, timeout=30) as resp:
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payload = json.loads(resp.read().decode("utf-8"))
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return payload.get("data", {}).get("data", {})
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except urllib.error.HTTPError as exc:
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if exc.code == 404:
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return {}
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raise
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def vault_put(token: str, path: str, data: dict) -> None:
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payload = {"data": data}
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req = urllib.request.Request(
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f"{VAULT_ADDR}/v1/kv/data/atlas/{path}",
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data=json.dumps(payload).encode("utf-8"),
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headers={"X-Vault-Token": token, "Content-Type": "application/json"},
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method="POST",
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)
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with urllib.request.urlopen(req, timeout=30) as resp:
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resp.read()
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def random_password(length: int = 32) -> str:
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alphabet = string.ascii_letters + string.digits
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return "".join(secrets.choice(alphabet) for _ in range(length))
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def ensure_admin_creds(token: str) -> dict:
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data = vault_get(token, "comms/synapse-admin")
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username = (data.get("username") or "").strip() or "synapse-admin"
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password = (data.get("password") or "").strip()
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if not password:
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password = random_password()
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data["username"] = username
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data["password"] = password
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vault_put(token, "comms/synapse-admin", data)
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return data
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def ensure_user(cur, cols, user_id, password, admin):
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now_ms = int(time.time() * 1000)
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values = {
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"name": user_id,
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"password_hash": bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode(),
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"creation_ts": now_ms,
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}
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def add_flag(name, flag):
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if name not in cols:
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return
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if cols[name]["type"] in ("smallint", "integer"):
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values[name] = int(flag)
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else:
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values[name] = bool(flag)
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add_flag("admin", admin)
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add_flag("deactivated", False)
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add_flag("shadow_banned", False)
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add_flag("is_guest", False)
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columns = list(values.keys())
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placeholders = ", ".join(["%s"] * len(columns))
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updates = ", ".join([f"{col}=EXCLUDED.{col}" for col in columns if col != "name"])
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query = f"INSERT INTO users ({', '.join(columns)}) VALUES ({placeholders}) ON CONFLICT (name) DO UPDATE SET {updates};"
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cur.execute(query, [values[c] for c in columns])
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def get_cols(cur):
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cur.execute(
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"""
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SELECT column_name, is_nullable, column_default, data_type
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FROM information_schema.columns
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WHERE table_schema = 'public' AND table_name = 'users'
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"""
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)
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cols = {}
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for name, is_nullable, default, data_type in cur.fetchall():
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cols[name] = {
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"nullable": is_nullable == "YES",
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"default": default,
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"type": data_type,
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}
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return cols
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def ensure_access_token(cur, user_id, token_value):
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cur.execute("SELECT COALESCE(MAX(id), 0) + 1 FROM access_tokens")
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token_id = cur.fetchone()[0]
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cur.execute(
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"""
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INSERT INTO access_tokens (id, user_id, token, device_id, valid_until_ms)
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VALUES (%s, %s, %s, %s, NULL)
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ON CONFLICT (token) DO NOTHING
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""",
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(token_id, user_id, token_value, "ariadne-admin"),
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)
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vault_token = vault_login()
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admin_data = ensure_admin_creds(vault_token)
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if admin_data.get("access_token"):
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log("synapse admin token already present")
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raise SystemExit(0)
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synapse_db = vault_get(vault_token, "comms/synapse-db")
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pg_password = synapse_db.get("POSTGRES_PASSWORD")
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if not pg_password:
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raise RuntimeError("synapse db password missing")
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user_id = f"@{admin_data['username']}:live.bstein.dev"
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conn = psycopg2.connect(
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host=PGHOST,
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port=PGPORT,
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dbname=PGDATABASE,
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user=PGUSER,
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password=pg_password,
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)
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token_value = secrets.token_urlsafe(32)
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try:
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with conn:
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with conn.cursor() as cur:
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cols = get_cols(cur)
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ensure_user(cur, cols, user_id, admin_data["password"], True)
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ensure_access_token(cur, user_id, token_value)
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finally:
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conn.close()
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admin_data["access_token"] = token_value
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vault_put(vault_token, "comms/synapse-admin", admin_data)
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log("synapse admin token stored")
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PY
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