Tutorial: using Docker¶
Emu WPS is available as docker image. You can download the docker image from DockerHub or build it from the provided Dockerfile.
Start the container with the following command:
$ docker run -i -d -p 5000:5000 -p 8000:8000 --name=emu birdhouse/emu
The ports are:
- PyWPS port: 5000
- NGINX file service port for the outputs: 8000
You can map the container port also to another port on your machine, for example: -p 8094:5000
(your machine port=8094, container port=5000).
Check the docker logs:
$ docker logs emu
Show running docker containers:
$ docker ps
Run a GetCapabilites WPS request:
Run DescribeProcess WPS request for Hello:
Execute Hello process with you user name:
Install Birdy WPS command line tool from Anaconda (Anaconda needs to be installed and in your PATH):
$ conda install -c birdhouse birdhouse-birdy
Use Birdy to access Emu WPS service:
$ export WPS_SERVICE=http://localhost:5000/wps
$ birdy -h
$ birdy hello -h
$ birdy hello --name Pingu
Stop and remove docker container:
$ docker stop emu_wps
$ docker rm emu_wps
Using docker-compose¶
Use docker-compose (you need a recent version > 1.7) to start the container:
$ git clone https://github.com/bird-house/emu.git
$ cd emu
$ docker-compose up -d
$ docker-compose logs emu
Execute tail command in the running container to see the logs:
$ docker ps # get the container name
NAMES
emu_emu_1
$ docker exec -it emu_emu_1 tail -f /opt/birdhouse/var/log/supervisor/emu.log
$ docker exec -it emu_emu_1 tail -f /opt/birdhouse/var/log/pywps/emu.log
You can change the ports and hostname with environment variables:
$ HOSTNAME=emu HTTP_PORT=8094 docker-compose up
Now the WPS is available on port 8094: http://emu:8094/wps?service=WPS&version=1.0.0&request=GetCapabilities.
You can also customize the docker-compose.yml file.
See the docker-compose documentation.
Build image using docker-compose¶
You can build locally a new docker image from the Dockerfile by running docker-compose:
$ docker-compose build