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SemTK via Docker

Build Docker image (using Packer)

Install Packer if you don't have it.

Manually download or copy the files below into the files subdirectory before building:

  • packer/files/apache-jena-fuseki-3.16.0.tar.gz: latest Fuseki release (download it from https://jena.apache.org/download/)

  • packer/files/semtk-opensource-dist.tar.gz: latest SemTK distribution (clone semtk-opensource, run ./build.sh, and copy distribution/target/*.tar.gz to files/)

  • packer/files/systemctl3.py: entrypoint and init daemon (visit docker-systemd-replacement and download files/docker/systemctl3.py to files/ under the European Union Public Licence). Current working version is v1.5.4260.

The following command will build, commit, and tag the Docker image.

  • If proxy not required: packer build semtk-docker.json

  • If proxy required, set the needed environment variables and then run: packer build -var "http_proxy=${http_proxy}" -var "https_proxy=${https_proxy}" -var “no_proxy=${no_proxy}" semtk-docker.json

Note: Packer supports building images for many hypervisors and clouds (e.g. Docker, Hyper-V, VirtualBox). Currently only Docker files are provided here. More may be added in the future.

Run Docker container

The following command will create and run a Docker container. The file env.list contains environment variables to be set at deploy time (e.g. to specify the semantic store to connect to) - these may be modified per deployment.

docker run --detach -p 80:80 -p 12050-12092:12050-12092 --env-file env.list semtk

Access SPARQLgraph at http://localhost

Notes

  • SemTK service logs are available at this location within the container: /var/log/journal/*.service.log

  • To bind container port (e.g. 80) to a different port (e.g. 81) on the host machine, replace -p 80:80 with -p 81:80