Dockette / TimescaleDB

🎁 TimescaleDB HA image with common extensions created on first start.

🕹 f3l1x.io | 💻 f3l1x | 🐦 @xf3l1x

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TimescaleDB on PostgreSQL, built on the timescaledb-ha image (timescale/timescaledb-ha) and published as dockette/timescaledb. It adds SQL that creates common monitoring and contrib extensions.

Features

• TimescaleDB HA pg18-ts2.30: FROM timescale/timescaledb-ha:pg18-ts2.30, nothing else changed
• Extensions are created on first initialization (empty data directory) by SQL in /docker-entrypoint-initdb.d/
• Entries such as auto_explain are loaded through shared_preload_libraries only and are not separate extensions here
• Listen port is 5432

Usage

docker run --name some-timescaledb -p 5432:5432 \
  -e POSTGRES_PASSWORD=secret \
  -v tsdb-data:/home/postgres/pgdata \
  dockette/timescaledb:ha-pg18-ts2.30

Configuration

The upstream HA image uses /home/postgres/pgdata/data as the default PGDATA. Set PGDATA and your volume mount to match your deployment. For a custom path (for example Nomad mounting /pgdata), use PGDATA=/pgdata/data if that is where PostgreSQL should store the cluster files.

Init SQL runs only when PGDATA is empty. Existing clusters need a manual CREATE EXTENSION or a migration job.

Nomad and /docker-entrypoint-initdb.d

A bind mount onto /docker-entrypoint-initdb.d replaces the whole directory in the container. The scripts of this image and the init scripts of upstream are not visible unless your mount includes those files.

1. Prefer to drop that mount and use the /docker-entrypoint-initdb.d/ of the image.
2. If you keep templated SQL in local/init/, ship every required init file there (more maintenance).

Versions

Version	Release
dockette/timescaledb:ha-pg18-ts2.30-YYYY.MM.DD	TimescaleDB HA pg18-ts2.30 in release YYYY.MM.DD; pin this one
dockette/timescaledb:ha-pg18-ts2.30	latest release
dockette/timescaledb:YYYY.MM.DD	release YYYY.MM.DD
dockette/timescaledb:latest	latest build of master

All versions build on timescale/timescaledb-ha:pg18-ts2.30. A TimescaleDB upgrade is a release too. Releases are listed on GitHub.

Development

make build          # build the image
make test           # check postgres and the init SQL in the image
make version        # print VERSION
make release        # set today's date in VERSION

After make build, a deeper check is to start a container with a fresh volume and POSTGRES_PASSWORD, wait for pg_isready and run psql -c '\dx' to list the extensions. It is slower than make test.

Maintenance

See how to contribute to this package. Consider to support f3l1x. Thank you for using this package.