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

Shivinder

Get the following error message when trying to build the docker compose.

Package 'docker-ce-cli' has no installation candidate

Screenshot of the Lab Page 2 and the Error Output are attached with this message.

I guess the package docker-ce-cli isn’t there in the image?

ericegan

@Shivinder I'll look into it.

Shivinder

@ericegan said:
@Shivinder I'll look into it.

Thank you.

Shivinder

@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.

luisviveropena

Hi @Shivinder , I have seen more than one issue when working with arm based systems (in more than just this course). So you may expect some trouble, perhaps in performance and other stuff.

Regards,
Luis.