Tekst is afkomstig van de websites:
https://clouding.io/hc/en-us/articles/360010398219-Install-Portainer-on-Ubuntu-18-04 en
https://linuxhint.com/install_portainer_docker_ui_ubuntu
First, it is recommended to update your system to the latest stable version. You can do it by running the following command:
sudo apt-get update -y
sudo apt-get upgrade -y

Install Docker

Next, you will need to install Docker CE on your server. By default, the latest version of Docker is not available in the Ubuntu 18.04 server default repository. So, you will need to add the repository for that:
First, download and add Docker CE GPG key with the following command:

sudo wget https://download.docker.com/linux/ubuntu/gpg
sudo apt-key add gpg

Next, add the Docker CE repository to APT with the following command:

sudo vim /etc/apt/sources.list.d/docker.list

Add the following line:

deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable

Save and close the file, when you are finished. Then, update the repository with the following command:

apt-get update -y

Once the repository is updated, install Docker CE with the following command:

sudo apt-get install docker-ce -y

After installing Docker CE, check the Docker service with the following command:

sudo systemctl status docker

You should see the following output:

Install Portainer

Docker is now installed and running, it’s time to install Portainer. First, download the Portainer image from Docker Hub with the following command:

sudo docker pull portainer/portainer

Once the Portainer image downloaded, you should see the following output:

Once the download has been completed, create Portainer data directory with the following command:

sudo mkdir /opt/portainer /data

Next, run the Portainer container with the following command:

sudo docker run -d -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer

You can see the Portainer image with the following command:

sudo docker images

You should see the following output:

You can check the running container with the following command:

sudo docker ps

You should see the following output:

Access Portainer Web Interface

Portainer container is now installed and running on port 9000. It’s time to access Portainer web interface. Now, open your web browser and type the URL http://**.**.**.**:9000 (Of http://domeinnaam:9000 / Localhost:9000). You will be redirected to the Portainer web interface as show below:

Hoe je Portainer upgrade naar versie 2.0 wordt hier uitgelegd:

Maar je kunt voor een upgrade ook deze commando’s uitvoeren (getest en werkend):
docker stop portainer
docker rm portainer
Those 2 commands will stop and remove the container respectively. Doing this will NOT remove your other applications/containers/etc.Now that you have stopped and removed the old version of Portainer, you can run this command
docker run -d -p 8000:8000 -p 9000:9000 –name=portainer –restart=always –pull=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce

Voor verdere instructies hoe Portainer gebruikt kan worden om een container toe te voegen kijk hier:
https://linuxhint.com/install_portainer_docker_ui_ubuntu

Om een grafische interface te kunnen gebruiken en zo een Ubuntu server makkelijker te kunnen
beheren volg de onderstaande instructies:

Add Webmin Ubuntu repository

Open the /etc/apt/sources.list file to manually add the repository link to the list. In order to
open the sources.list file, run the following command as root in your Terminal:

$ sudo vi /etc/apt/sources.list

This will open the file in the Nano editor. Move to the end of the file and paste the following line in
order to add the Webmin repository to the list:

deb http://download.webmin.com/download/repository sarge contrib

The next step is to get the Webmin PGP key for the newly added repository. This way the system will
trust this repository. Run the following command to do so:

$ wget http://www.webmin.com/jcameron-key.asc

Then add the key through the following command:

$ sudo apt-key add jcameron-key.asc

Installing Webmin on Ubuntu

Once the repository has been added and recognized, let us update the list of packages on our
system through the following command:

$ sudo apt update

Finally, install the Webmin application through the following command:

$ sudo apt install webmin

Hierna kan er ingelogd worden op de interface door te gaan naar https://[server ip-adres of hostnaam]:10000

Voorbeeld van het resultaat is hieronder getoond:

What’s Certbot?
Certbot is a free, open source software tool for automatically using Let’s Encrypt certificates on manually-administrated websites to enable HTTPS.
Certbot is made by the Electronic Frontier Foundation (EFF), a 501(c)3 nonprofit based in San Francisco, CA, that defends digital privacy, free speech, and innovation.
Kortom, met Certbot kun je simpel een website voorzien van een gratis (Let’s Encrypt) certificaat en secure (https) maken. Hieronder de installatie instructies die te kiezen zijn voor alle webserver software en besturingssystemen. Als voorbeeld voor Apache op Ubuntu 18.04 LTS Bionic:
1. SSH into the server
SSH into the server running your HTTP website as a user with sudo privileges.
2. Install snapd
You’ll need to install snapd and make sure you follow any instructions to enable classic snap support.Follow these instructions on snapcraft’s site to install snapd.
install snapd
3. Remove any Certbot OS packages
If you have any Certbot packages installed using an OS package manager like apt, dnf, or yum, you should remove them before installing the Certbot snap to ensure that when you run the command certbot the snap is used rather than the installation from your OS package manager. The exact command to do this depends on your OS, but common examples are sudo apt-get remove certbot, sudo dnf remove certbot, or sudo yum remove certbot.
4. Install Certbot
Run this command on the command line on the machine to install Certbot.
sudo snap install –classic certbot

5. Choose how you’d like to run Certbot Either get and install your certificates…
Run this command to get a certificate and have Certbot edit your Apache configuration automatically to serve it, turning on HTTPS access in a single step.
sudo certbot –apache
Or, just get a certificate
If you’re feeling more conservative and would like to make the changes to your Apache configuration by hand, run this command.
sudo certbot certonly –apache
6. Test automatic renewal
The Certbot packages on your system come with a cron job or systemd timer that will renew your certificates automatically before they expire. You will not need to run Certbot again, unless you change your configuration. You can test automatic renewal for your certificates by running this command:
sudo certbot renew –dry-run

The command to renew certbot is installed in one of the following locations:
/etc/crontab/
/etc/cron./
systemctl list-timers

7. Confirm that Certbot worked
To confirm that your site is set up properly, visit https://yourwebsite.com/ in your browser and look for the lock icon in the URL bar. If you want to check that you have the top-of-the-line installation, you can head to https://www.ssllabs.com/ssltest
Of controleer de goede werking op https://www.sslcheck.nl/mattizz.nl