Run daily checks that open Jira tickets when something fails

from datetime import datetime, timezone
from clickruntime import on_trigger, credentials, http, notify, state

JIRA, SITE = "https://api.atlassian.com/ex/jira/your-cloud-id", "https://acme.atlassian.net/browse/"
adf = lambda text: {"type": "doc", "version": 1, "content": [{"type": "paragraph", "content": [{"type": "text", "text": text}]}]}

def jira(method, path, **kw):
    resp = http.request(method, JIRA + path, headers={"Authorization": f"Bearer {credentials.connection('jira', 'work')}", "Accept": "application/json"}, **kw)
    return resp.raise_for_status() or (resp.json() if resp.content else None)

DOMAINS, HEALTH = ["acme.example", "app.acme.example"], ["https://app.acme.example/health"]

def cert_days(host):
    resp = http.get(f"https://{host}", stream=True, timeout=10)
    not_after = resp.raw.connection.sock.getpeercert()["notAfter"]
    resp.close()
    return (datetime.strptime(not_after, "%b %d %H:%M:%S %Y %Z").replace(tzinfo=timezone.utc) - datetime.now(timezone.utc)).days

@on_trigger
def run(event):
    problems = {}
    for d in DOMAINS:
        if (days := cert_days(d)) < 21:
            problems[f"ssl:{d}"] = f"SSL certificate for {d} expires in {days} days"
    for url in HEALTH:
        try:
            ok = http.get(url, timeout=10).ok
        except Exception:
            ok = False
        if not ok:
            problems[f"health:{url}"] = f"Health check failed for {url}"
    known = state.get("known") or {}
    created = []
    for key, text in problems.items():
        if key not in known:
            known[key] = jira("POST", "/rest/api/3/issue", json={"fields": {"project": {"key": "OPS"}, "issuetype": {"name": "Task"}, "summary": text}})["key"]
            created.append(f"{known[key]} {text}")
    if created:
        notify.email_me(f"{len(created)} new monitoring problems", "\n".join(created))
    state.set("known", {k: v for k, v in known.items() if k in problems})
    return {"problems": len(problems), "new": len(created)}