Lab 4 - Setting Up Continuous Integration with Jenkins - Page 2 - Error while building

@ericegan I guess I’ve figured out the issue. The package docker-ce-cli isn’t available for the arm64 arch. I tried to execute the steps inside the docker image manually and after I reached the step where I need to install the docker-ce-cli package, it failed, as expected.
I listed the packages, and figured out the arch is different. I am on arm64. But the docker image is a amd64, do you think it should still work?

Or maybe the Dockerfile line which adds the repository to the image, needs to be ammended,

RUN add-apt-repository \
       "deb [arch=amd64] https://download.docker.com/linux/debian \
       $(lsb_release -cs) stable”

It clearly says arch=amd64 in there.

I modied the Dockerfile and used the correct arch for my laptop here, the issue did not happen.
I have attached the terminal output from the run with arch set to amd64 with this ticket.

The output from the terminal where I set the arch to arm64 is below:

root@cf3526be43ee:/# add-apt-repository "deb [arch=arm64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
root@cf3526be43ee:/# apt-get update && apt-get install -y docker-ce-cli
Hit:1 http://deb.debian.org/debian bullseye InRelease
Hit:2 http://deb.debian.org/debian-security bullseye-security InRelease                            
Hit:3 http://deb.debian.org/debian bullseye-updates InRelease                                      
Get:4 https://download.docker.com/linux/debian bullseye InRelease [43.3 kB]                        
Get:5 https://download.docker.com/linux/debian bullseye/stable arm64 Packages [15.2 kB]
Hit:6 https://packagecloud.io/github/git-lfs/debian bullseye InRelease       
Fetched 58.5 kB in 2s (32.5 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following NEW packages will be installed:
  docker-ce-cli
0 upgraded, 1 newly installed, 0 to remove and 11 not upgraded.
Need to get 37.2 MB of archives.
After this operation, 145 MB of additional disk space will be used.
Get:1 https://download.docker.com/linux/debian bullseye/stable arm64 docker-ce-cli arm64 5:20.10.22~3-0~debian-bullseye [37.2 MB]
Fetched 37.2 MB in 4s (8306 kB/s)        
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package docker-ce-cli.
(Reading database ... 14751 files and directories currently installed.)
Preparing to unpack .../docker-ce-cli_5%3a20.10.22~3-0~debian-bullseye_arm64.deb ...
Unpacking docker-ce-cli (5:20.10.22~3-0~debian-bullseye) ...
Setting up docker-ce-cli (5:20.10.22~3-0~debian-bullseye) ...
root@cf3526be43ee:/# 

So I guess this works for me for now.