Files
sless/examples/pg-query/handler.py
T
“Naeel” 0268ef0523 fix: multiple fixes + pg-query e2e passed
upload.go:
- Update → Patch (MergeFrom) to avoid resourceVersion conflict when operator
  modifies Function between Get() and Update()

terraform provider v0.1.1:
- trigger_resource.go: trToModel returns StringNull() for empty schedule
  (fixes 'provider produced inconsistent result' for http triggers)
- main.go: bump version to 0.1.1

examples/pg-query:
- handler.py: fix column name started_at → created_at (matches migrations/001)
- main.tf: pin provider to ~> 0.1.1

.gitignore: add terraform state, lock, .terraform/, handler.zip

doc/errors/log.md: documented all 5 errors from this session:
- resourceVersion conflict → use Patch
- terraform inconsistent result for schedule → StringNull
- terraform import not implemented → delete+recreate workaround
- wrong column name → check migrations before writing handlers
- Deployment not restarting after image rebuild → rollout restart / TODO: restartedAt annotation

doc/progress.md: terraform apply e2e 
2026-03-07 10:52:29 +04:00

40 lines
1.7 KiB
Python

# 2026-03-07
# handler.py — пример serverless функции, работающей с PostgreSQL.
# Подключается к postgres.sless.svc.cluster.local:5432 (внутри кластера).
# DSN берётся из env переменной PG_DSN (задаётся через env_vars ресурса sless_function).
# handle(event) — принимает JSON event, возвращает список записей из таблицы invocations.
import os
import json
def handle(event):
# psycopg2 входит в python:3.11-slim через pip install ниже,
# либо нужно добавить в Dockerfile — для этого примера устанавливаем через requirements.txt.
try:
import psycopg2
import psycopg2.extras
except ImportError:
return {"error": "psycopg2 not installed — add requirements.txt with psycopg2-binary"}
dsn = os.environ.get("PG_DSN", "")
if not dsn:
return {"error": "PG_DSN env variable is not set"}
limit = event.get("limit", 5)
conn = psycopg2.connect(dsn)
try:
cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
cur.execute("SELECT id, namespace, function_name, status, created_at FROM invocations ORDER BY created_at DESC LIMIT %s", (limit,))
rows = cur.fetchall()
# RealDictCursor возвращает объекты, сериализуем вручную
result = []
for row in rows:
r = dict(row)
# datetime → str
if r.get("created_at"):
r["created_at"] = str(r["created_at"])
result.append(r)
return {"invocations": result, "count": len(result)}
finally:
conn.close()