This is a Spring Boot MVC application which fetches Common Workflow Language files from a Github repository and creates a page for it detailing the main workflow and its inputs, outputs and steps.
You are recommended to use the production instance of CWL Viewer at https://view.commonwl.org/ which runs the latest release. Any downtime should be reported on the gitter chat for cwlviewer.
If you are a developer, or you want to use the CWL Viewer in a closed environment, then you can run your own instance.
This application can be started with Docker and Docker Compose and Docker Compose is the recommended method of running or developing this codebase.
Then run the following commands to clone the project in your local system.
git clone https://github.com/common-workflow-language/cwlviewer.git
cd cwlviewer
In the project directory, to start CWLViewer exposed on port 8080
, run:
docker compose up
The web server will connect to a local host, you'll see the message saying "Tomcat started on port(s):8080".
To see the locally running CWL Viewer app, visit http://localhost:8080/ in your web browser.
To stop and remove:
docker compose down
If you change the source code, then use this docker-compose.override.yml
and
re-build with docker compose build
:
version: '3.9'
services:
spring:
build: .
See the docker-compose.yml file for details.
If you have modified the source code, then you may want to build the docker image locally first:
docker build -t commonworkflowlanguage/cwlviewer .
Create docker-compose.override.yml
:
version: '3.9'
services:
postgres:
ports:
- "5432:5432"
sparql:
ports:
- "3030:3030"
Then start the containers:
docker compose up
Then start Spring Boot locally:
mvn spring-boot:run -Dserver.port=7999
Now you can connect to http://localhost:7999 in your browser.
To completely reset the state, you must delete the data volumes:
docker compose down
docker volume rm cwlviewer_bundle cwlviewer_git cwlviewer_graphviz cwlviewer_postgres cwlviewer_sparql
You will need to have PostgreSQL running,
by default on localhost:5432
If you are running from the command line, you can override this by supplying
system properties like -Dspring.datasource.url=jdbc:postgresql://localhost:5432/cwlviewer
and
-Dspring.datasource.password=sa
You will also need to have a SPARQL server such as Apache Jena Fuseki running,
by default on localhost:3030
To retrieve license information, CWL Viewer uses the Licensee Ruby Gem. To install it, configure Ruby on your environment and then run
gem install licensee
You may use a dependency from your operating system package manager if you
prefer too, e.g. ruby-licensee
for Ubuntu LTS 22.04.1.
Before running Maven, try running licensee
in the command-line to verify
it was installed successfully.
To compile you will need Java 17 or a compatible distribution
(e.g. Eclipse Adoptium) and version, as well as
Apache Maven 3 (apt install maven
).
Spring Boot uses an embedded HTTP server. The Spring Boot Maven plugin includes a run goal which can be used to quickly compile and run it:
$ mvn spring-boot:run
Alternatively, you can run the application from your IDE as a simple Java application by importing the Maven project.
You need to install Graphviz for all unit tests to pass.
You can create an executable JAR file by using:
mvn clean install
Afterwards, run:
java -jar target/cwlviewer*.jar
(The exact filename will vary per version)
Once CWL Viewer is running, you should see log output somewhat like:
()..)
s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
org.researchobject.CwlViewerApplication : Started CwlViewerApplication in 28.604 seconds
Now check out http://localhost:8080/ to access CWL Viewer.
There are a variety of configuration options detailed in the application configuration file which can be adjusted.
When deploying with docker, these can be overridden externally by creating/modifying docker-compose.override.yml
as follows:
version: '3.9'
services:
spring:
environment:
applicationName: Common Workflow Language Viewer
applicationURL: https://view.commonwl.org
cacheDays: 1
The properties can alternatively be provided as system properties on the
command line, e.g. -DcacheDays=1
or via a variety of other methods supported by Spring Boot
While you can perform backup of the Docker volumes, for larger upgrades of CWL Viewer it is recommended instead to do a JSON dump and re-load, which will force CWL Viewer to fetch and parse again.
The script dump.py
can be used for regular backups, it will store the full
output of /workflows as one or multiple timestamped JSON files (you can use
gzip
to compress them):
$ python dump.py --viewer https://view.commonwl.org/ --output /var/backups --page 0 --size 100
INFO:Viewer URL: https://view.commonwl.org/
INFO:Output: /var/backups
INFO:Dumping workflows from https://view.commonwl.org/, page 0, size 100 to /var/backups
$ python dump.py -o /var/backups -a
INFO:Viewer URL: https://view.commonwl.org/
INFO:Output: /var/backups
INFO:Dumping all the workflows from https://view.commonwl.org/ to /var/backups
100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 16/16 [04:39<00:00, 17.49s/it]
The script load.py
(requires Python 3) can be used to restore from such JSON dumps:
./load.py /var/backups/cwl/2018-06-06T135133+0000.json.gz https://view.commonwl.org/
The optional parameter --no-commits
can be added to skip those entries that
look like a commit ID. Note that this might break previous permalinks.
2017 Poster https://doi.org/10.7490/f1000research.1114375.1?
2017 Video overview https://youtu.be/_yjhVTmvxLU
2017 Technical Report https://doi.org/10.5281/zenodo.823295
Distributed under the Apache License, Version 2.0. See the file LICENSE.md for details, and NOTICE.md for required attribution notices.
Feel free to contribute! You may raise an issue, provide a pull request or join the gitter chat for cwlviewer!
See CHANGELOG
(and optionally publishing that image to DockerHub)
# confirm the build arguments
# if these don't look correct, troubleshoot before continuing.
BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') VCS_REF=$(git rev-parse HEAD) VERSION=$(git describe)
echo BUILD_DATE=${BUILD_DATE} VCS_REF=${VCS_REF} VERSION=${VERSION}
# build the container image
docker build --build-arg BUILD_DATE=${BUILD_DATE} --build-arg VCS_REF=${VCS_REF} \
--build-arg VERSION=${VERSION} \
-t cwlviewer:${VERSION} .
# the rest is optional
docker tag cwlviewer:${VERSION} docker.io/commonworkflowlanguage/cwlviewer:${VERSION}
docker tag cwlviewer:${VERSION} quay.io/commonwl/cwlviewer:${VERSION}
docker push docker.io/commonworkflowlanguage/cwlviewer:${VERSION}
docker push quay.io/commonwl/cwlviewer:${VERSION}
After CHANGELOG.md has been updated and the -SNAPSHOT
suffix removed from pom.xml
, run the following:
git checkout main
git pull
new_version=1.4.3 # CHANGEME
# create an annotated git tag
git tag -a -m "release version ${new_version}" v${new_version}
# confirm the build arguments
# if these don't look correct, troubleshoot before continuing.
# for example, was your tag an annotated (-a) tag?
BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') VCS_REF=$(git rev-parse HEAD) VERSION=$(git describe)
echo BUILD_DATE=${BUILD_DATE} VCS_REF=${VCS_REF} VERSION=${VERSION}
# build the container image
docker build --build-arg BUILD_DATE=${BUILD_DATE} --build-arg VCS_REF=${VCS_REF} \
--build-arg VERSION=${VERSION} \
-t cwlviewer:${VERSION} .
# tag this container image in preparation for pushing to Docker Hub and Quay.io
docker tag cwlviewer:${VERSION} docker.io/commonworkflowlanguage/cwlviewer:${VERSION}
docker tag cwlviewer:${VERSION} docker.io/commonworkflowlanguage/cwlviewer:latest
docker tag cwlviewer:${VERSION} quay.io/commonwl/cwlviewer:${VERSION}
docker tag cwlviewer:${VERSION} quay.io/commonwl/cwlviewer:latest
# push the container image to Docker Hub and Quay.io
docker push docker.io/commonworkflowlanguage/cwlviewer:${VERSION}
docker push docker.io/commonworkflowlanguage/cwlviewer:latest
docker push quay.io/commonwl/cwlviewer:${VERSION}
docker push quay.io/commonwl/cwlviewer:latest
# upload the annotated tag to GitHub
git push --tags
git push
Then copy the changelog into https://github.com/common-workflow-language/cwlviewer/releases/new using the tag you just pushed.
Finally, make a new PR to bump the version and restore the -SNAPSHOT
suffix in pom.xml
.
Developers and contributors include:
Thanks to: