Given a docker image 'catlfish' as defined in catlfish/packaging/docker, here is an example of a minimal catlfish log using one docker container to run one single Erlang beam instance for both a frontend and a storage node and an example of how to start a shell script in the host system performing merge periodically. Create the docker image $ docker build -t my-single-image-catlfish docker Run the newly created image in a docker container $ docker run --name=my-catlfish --detach=true --publish 127.0.0.1:8080-8082:8080-8082/tcp my-single-image-catlfish This will create and start one container listening for cert chain submissions on https://127.0.0.1:8080/. In order to start a shell script doing merge (i.e. generate new STH's) with an interval of 20 minutes (with the first merge occuring five minutes after startup) in the host system, cd into the catlfish directory and run examples/docker-minimal/docker/merge.sh. To submit a cert chain and verify the resulting SCT, try the submitcert tool: $ tools/submitcert.py --store=tools/testcerts/cert1.txt --check-sct --sct-file=/tmp/cert1-sct https://127.0.0.1:8080/