Hi, let me advertise an option for git clone using git+ssh. I have put together a Docker image which supports git cloning using git+ssh out-of-the box. Give it a try and let me know how it works. Usage is as follows: docker run --name nifi-registry \ -p 18080:18080 \ -v ~/.ssh:/home/nifi/.ssh \ -e 'FLOW_PROVIDER=git' \ -e 'GIT_REMOTE_URL=git@github.com:michalklempa/docker-nifi-registry-example-flow.git' \ -e 'GIT_CHECKOUT_BRANCH=example' \ -e 'FLOW_PROVIDER_GIT_FLOW_STORAGE_DIRECTORY=/opt/nifi-registry/flow-storage-git' \ -e 'FLOW_PROVIDER_GIT_REMOTE_TO_PUSH=origin' \ -e 'GIT_CONFIG_USER_NAME=Michal Klempa' \ -e 'GIT_CONFIG_USER_EMAIL=michal.klempa@gmail.com' \ -d \ michalklempa/nifi-registry:latest or using ~/.ssh as a bind mount point: docker run --name nifi-registry \ -p 18080:18080 \ -e 'FLOW_PROVIDER=git' \ -e 'GIT_REMOTE_URL=git@github.com:michalklempa/docker-nifi-registry-example-flow.git' \ -e 'GIT_CHECKOUT_BRANCH=example' \ -e 'FLOW_PROVIDER_GIT_FLOW_STORAGE_DIRECTORY=/opt/nifi-registry/flow-storage-git' \ -e 'FLOW_PROVIDER_GIT_REMOTE_TO_PUSH=origin' \ -e 'GIT_CONFIG_USER_NAME=Michal Klempa' \ -e 'GIT_CONFIG_USER_EMAIL=michal.klempa@gmail.com' \ -e 'SSH_PRIVATE_KEY='$(base64 -w 0 < ~/.ssh/id_rsa) \ -e 'SSH_KNOWN_HOSTS='$(base64 -w 0 < ~/.ssh/known_hosts) \ -e 'SSH_PRIVATE_KEY_PASSPHRASE=' \ -d \ michalklempa/nifi-registry:latest Using HTTPS is also supported: docker run --name nifi-registry \ -p 18080:18080 \ -e 'FLOW_PROVIDER=git' \ -e 'GIT_REMOTE_URL=https://github.com/michalklempa/docker-nifi-registry-example-flow.git' \ -e 'GIT_CHECKOUT_BRANCH=example' \ -e 'FLOW_PROVIDER_GIT_FLOW_STORAGE_DIRECTORY=/opt/nifi-registry/flow-storage-git' \ -e 'FLOW_PROVIDER_GIT_REMOTE_TO_PUSH=origin' \ -e 'FLOW_PROVIDER_GIT_REMOTE_ACCESS_USER=michalklempa' \ -e 'FLOW_PROVIDER_GIT_REMOTE_ACCESS_PASSWORD=thisisnotmypassword:)' \ -e 'GIT_CONFIG_USER_NAME=Michal Klempa' \ -e 'GIT_CONFIG_USER_EMAIL=michalklempa@gmail.com' \ -d \ michalklempa/nifi-registry:latest Full documentation available at github: https://github.com/michalklempa/docker-nifi-registry/#git-cloning-the-repository-at-startup and docker image on dockerhub: https://hub.docker.com/r/michalklempa/nifi-registry ... View more