Entering a connection string in the installer is now enough: the new
command `SQLInsight.Agent.exe setup-repository` runs as a deferred custom
action after the services exist and sqlinsight.ini is written, and before
they start. It runs as the installing user on purpose (SQL Server must see
a person with rights, not SYSTEM) and:
- creates the database from Database=... if it is missing
- creates logins/users for the service accounts: agent db_owner, web
db_datareader. NT SERVICE\... accounts arrive at another computer as
DOMAIN\COMPUTER$, which then gets the login instead
- runs the schema migrations
- with MONITOR_SERVER: creates the agent's login there and applies
grant-least-privilege.sql (embedded). A failure there is a warning only
A repository failure stops the installation; the reason goes to the
Application event log with a Danish hint (login, rights, certificate,
unreachable). SKIP_REPOSITORY_SETUP=1 leaves it to a DBA. Safe to rerun.
verify-msi.py allows this one action to impersonate and checks its
placement, Return=check and condition. Tested against a local SQL
Express (twice, idempotent) and with an unreachable server. Version 1.0.1.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Rule packs (support dates and newest CU per release) are published in a
signed feed and hot-loaded without a restart; the verified pack is
reloaded at startup. New versions are announced (Notify) or downloaded
and staged by the unprivileged agent (Automatic), and installed by a
privileged apply-update task that re-verifies signature and hash in an
admin-only folder, keeps appsettings/web.config, health-checks the
services and rolls back on failure. Stable and preview channels,
manifest expiry and rollback protection, https or folder/share feeds
for offline sites. Vendor tool gains rulepack and publish; the Hub can
serve the feed; the web UI gets a System page with update, rule pack,
license and exactly what is sent to the Hub.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
Collectors (SQL Server 2000+, version-specific SQL, least privilege):
server, configuration, trace flags, databases (settings, backups in UTC,
CHECKDB, VLFs, Query Store, files, tempdb), suspect pages, plan cache,
wait stats and file I/O as deltas with restart/clear detection,
performance counters, CPU from the scheduler monitor ring buffer,
blocking (sleeping head blockers with open transactions), and deadlocks
from system_health continuing from the last file offset.
Rules: configuration (memory, MAXDOP per Microsoft NUMA guidance, cost
threshold, ad hoc bloat, risky options, pending changes), databases
(state, settings, backups, log backups, CHECKDB, suspect pages, VLFs,
autogrowth, max size, Query Store, tempdb), waits (THREADPOOL, signal
waits, locks, I/O, WRITELOG, parallelism, PAGELATCH), I/O latency, CPU,
memory grants, blocking and deadlocks. Missing data makes a rule not
measurable with the collector's reason.
Integration tests run every collector as the least-privilege login and
reproduce real blocking and a real deadlock; green on 2017 and 2022.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
- .NET 10 solution with Core, Connectivity, Rules, Contracts, Agent, Web and Hub
- Capability model gating collectors and rules by SQL Server version (2000 and later);
rules that cannot run are reported as not measurable, never as passed
- Connectivity via Microsoft.Data.SqlClient with ODBC fallback for legacy instances,
hardened monitoring session settings valid back to SQL Server 2000
- Support lifecycle rule (SQLI-VER-001) with lifecycle data shipped as a rule pack
- Version-aware least-privilege permissions script, verified by integration tests
against SQL Server in Docker (reads monitoring sources, cannot read customer data)
- Forgejo Actions CI, contributing guide, code of conduct, issue templates,
legacy version notes
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
