I was confused about the docker install – I thought it meant installation as a container on an MT device.
I just tried the docker install and it failed as follows:
Debian GNU/Linux 11 debian tty1
raw/b1fc4e0f283fd48d78861fa1a665fd1cb19b734d/installer.sh)" rootsercontent.com/s265925/84f8fdc90c8b330a1501626a50e983a1/r
installing docker...
Hit:1 http://security.debian.org bullseye-security InRelease
Hit:2 http://deb.debian.org/debian bullseye InRelease
Hit:3 http://deb.debian.org/debian bullseye-updates InRelease
Ign:4 https://download.docker.com/linux/ubuntu bullseye InRelease
Err:5 https://download.docker.com/linux/ubuntu bullseye Release
404 Not Found [IP: 13.225.63.62 443]
Reading package lists... Done
E: The repository 'https://download.docker.com/linux/ubuntu bullseye Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
apt-transport-https is already the newest version (2.2.4).
ca-certificates is already the newest version (20210119).
curl is already the newest version (7.74.0-1.3+deb11u13).
software-properties-common is already the newest version (0.96.20.2-2.1).
The following packages were automatically installed and are no longer required:
fontconfig-config fonts-dejavu-core geoip-database libdeflate0 libfontconfig1 libfreetype6 libgd3 libgeoip1 libjbig0
libjpeg62-turbo libnginx-mod-http-geoip libnginx-mod-http-image-filter libnginx-mod-http-xslt-filter
libnginx-mod-mail libnginx-mod-stream libnginx-mod-stream-geoip libpng16-16 libtiff5 libwebp6 libx11-6 libx11-data
libxau6 libxcb1 libxdmcp6 libxpm4 nginx-common nginx-core
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 53 not upgraded.
E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
(23) Failed writing body
Hit:1 http://deb.debian.org/debian bullseye InRelease
Hit:2 http://deb.debian.org/debian bullseye-updates InRelease
Ign:3 https://download.docker.com/linux/ubuntu bullseye InRelease
Hit:4 http://security.debian.org bullseye-security InRelease
Err:5 https://download.docker.com/linux/ubuntu bullseye Release
404 Not Found [IP: 13.225.63.90 443]
Reading package lists... Done
E: The repository 'https://download.docker.com/linux/ubuntu bullseye Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package docker-ce is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'docker-ce' has no installation candidate
Failed to start docker.service: Unit docker.service not found.
Failed to enable unit: Unit file docker.service does not exist.
usermod: group 'docker' does not exist
Error.
Following ports is not availble: 6379 5432
port 6379 is needed for redis
port 5432 is needed for postgres
port 80 and 443 is needed for Nginx