Appendix

 

Installing Docker and Docker Compose

To remove any previous installation and reinstall Docker, run the following commands as a user with root privileges (i.e. sudo):  

1. systemctl stop docker

2. yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine

3. rm /etc/yum.repos.d/docker*.repo

4. yum install -y yum-utils device-mapper-persistent-data lvm2

5. yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

6. yum install docker-ce docker-ce-cli containerd.io

7. systemctl start docker

8. usermod -aG docker YOUR_DOCKER_USER_HERE

9. systemctl enable docker.service

10. systemctl daemon-reload

 

For Docker Compose, run the following commands:

1. curl -L https://github.com/docker/compose/releases/download/1.24.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

2. chmod +x /usr/local/bin/docker-compose

3. sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

 

How to enable persistent notifications in Firefox and Chrome

Clara can monitor a job and send you a notification when the job status changes.

You must enable notifications in your browser (Google Chrome, Mozilla Firefox, or Microsoft Edge).

 

If you are enabling notifications in Firefox, to have persistent notifications outside the browser (like in Google Chrome), run the following procedure:

1. Open Firefox and type about:config in the address bar and press Enter. A warning message will appear, click the button "I accept the risk!".

2. Type "alerts" in the Search filter box: the preference alerts.useSystemBackend will show up in the window.

3. Set the preference to true if you want to have websites notifications in Windows 10 Action Center.

 

If you want the notification to be persistent inside Firefox notification system, run the following procedure:

1. Open Firefox, type about:config in the address bar,  and press Enter. A warning message will appear, click the button "I accept the risk!".

2. In the Search filter box, type dom.webnotifications.requireinteraction.enabled. The preference will show up in the window.

3. Set the preference to true.

 

If you have problems in receiving notification on Mac:

1. Got to System Prefecences > Notifications

2. Select your browser in the list of browsers

3. Turn on the notification toggle

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