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@bersace bersace released this 14 Nov 09:10
· 900 commits to master since this release
v8.0
2b785ad
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bersace Étienne BERSAC
GPG key ID: 95997557AD5A6DBF
Learn about vigilant mode.

!!! warning

temBoard UI 8.0 is compatible with temBoard agent 7.11 to ease migration.
Upgrade UI first and then upgrade agents one at a time.

temBoard agent 8 is **NOT** compatible with temBoard UI 7.11.

This release requires specific upgrade instructions.
See [Server Upgrade](server_upgrade.md) and [Agent Upgrade](agent_upgrade.md) for details.

Breaking changes

  • temBoard UI dropped support for Internet Explorer 8. You may have issues with
    browsers older than 5 years.
  • Dropped support for PostgreSQL 9.5 and 9.4. For both UI and agent.
  • Dropped key-only authentication on agent. Access to UI grants full access on managed agent.
  • New CLI for both UI and agent. temboard and temboard-agent are the single CLI entrypoints.
    • Removed temboard --debug CLI option.
    • Dropped commands temboard-agent-adduser and temboard-agent-password.
    • Commands temboard-migratedb, temboard-agent-register are moved as
      subcommands of temboard and temboard-agent.
  • temBoard UI dropped push-metrics handler from pre-6.0 push metric collect.
  • temBoard UI RPM does not execute auto_configure.sh upon installation.
  • temBoard UI RPM does not create temboard UNIX user. Use auto_configure.sh
    instead.
  • temBoard Agent RPM does not create postgres UNIX user. Use PostgreSQL packages instead.
  • Packages does not provide logrotate configuration anymore. temBoard can still
    log to file.
  • pg_ctl agent parameter must not be quoted now, in temboard-agent.conf.
  • Agent auto_configure.sh now requires a parameter: the UI url.
  • temBoard agent does not provide legacy single-installation systemd unit file
    temboard-agent.service in favor of [email protected].
  • temBoard agent debian package does not provide legacy temboard-agent.init
    SysV script. Use sytemd instead.
  • temBoard agent auto_configure.sh now generates a single configuration file
    instead of temboard-agent.conf.d/auto.conf.
  • temBoard agent auto_configure.sh does not configure file logging anymore.
  • Dropped temBoard agent HTTP endpoint /monitoring/probe/*, some
    /dashboard/ probes and more. Use temboard routes and temboard-agent routes to inspect availables HTTP URLs.
  • Docker image for agent now configures agent with auto_configure.sh.
    temBoard agent configuration moved from /etc/temboard-agent to
    /etc/temboard-agent/<cluster_name>.

Deprecation

  • Running temBoard UI with Python 2.7 and Python 3.5 is deprecated. All RPM and
    deb packages ships with Python 3.
  • Debian stretch support is deprecated (EOL June 2022).

New Features

  • PostgreSQL 15 support.
  • Unified authentication. Signing in UI open full DBA access to agents, without
    double login.
  • Register instance without querying UI API using temboard register-instance.
  • Download instance inventory as CSV.
  • Automatically refresh introspection data from agent.
  • New About temBoard page with detailed installation's informations.
  • New About instance page with PostgreSQL, system and agent informations.
  • OpenMetrics endpoint. Accessible using temBoard UI as authenticating proxy to
    agent.
  • RHEL9, Debian Bookworm (testing) packages.
  • Increase agent OOM score with systemd.
  • Restyled documentation with improved search and navigation.

Changes

  • Each temBoard release has it's own docker tag. e.g. dalibo/temboard:8.0,
    dalibo/temboard:8.0rc1, etc. See Docker Hub repositories dalibo/temboard
    and dalibo/temboard-agent.
  • Streamlined docker images, basing on Debian Bullseye, with temBoard installed
    with APT instead of pip.
  • Restart scheduler and worker pool background processes on crash.
  • Improved error logging. Log format is now Postgres-like.

UI changes

  • Sign agent requests with an asymetric cryptographic key. New agent does not
    require double authentification anymore.
  • New command temboard generate-key for generating signing key.
  • New database migration engine. Dropped dependency on Alembic, Mako, etc.
  • Move temboard-migratedb as temboard migratedb subcommand.
  • New command temboard tasks flush to flush old tasks when upgrading.
  • Fast collect of monitoring and statements metrics upon agent registration.
  • Format PostgreSQL start time in dashboard as relative date.
  • temBoard UI waits for locks in monitoring collect. Abort long collect
    task. New parameter [monitoring] collect_max_duration.
  • temBoard UI now has API key authorization, use for /metrics proxy to agent.
  • New temBoard UI parameter [auth] allowed_ip to restrict API Key
    authorization. By default, only 127/8 is allowed.
  • Improved refresh error handling in dashboard, activity and home page. Error
    are now inlined instead of modal.
  • temBoard UI now accept to serve plain HTTP. For development purpose.
  • New commands temboard query-agent, temboard routes, temboard tasks run, temboard tasks schedule and temboard web for debugging.
  • Handle SIGCHLD in temboard UI too. No more zombies.
  • Limit activity view to 300 longest queries.

Agent changes

  • Unified authentification: agent now uses UI as source of identity.
  • Dropped users file and related configuration.
  • New command temboard-agent fetch-key to accept UI signing key.
  • New option: [temboard] ui_url, pointing to UI URL.
  • auto_configure.sh conditionnaly enable statements plugins.
  • Move temboard-agent-register as temboard-agent register subcommand.
  • New command temboard-agent discover to introspect temBoard agent, system
    and PostgreSQL.
  • Refresh discover data on startup and Postgres connection recovery.
  • temBoard agent pools connections to PostgreSQL used by web API, reducing
    connections stress on PostgreSQL.
  • Heavily reduction of connection opened by dashboard.
  • Drop agent configuration postgresql:instance in favor of Postgres
    setting cluster_name.
  • Add new unified sessions and detailed locks endpoint.
  • temBoard agent now depends on cryptography and bottle.
  • New subcommands temboard-agent routes, temboard-agent tasks run and
    temboard-agent web for debugging.
  • Monitoring purge_after default value is now set to 730 (2 years), it was empty
    before (no limit).
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