Azure DevOps agent on Ubuntu 22.04 LTS

I recently tried setting up an Azure DevOps agent on my Ubuntu 22.04 Digital Ocean droplet and got stuck with an error message of No usable version of libssl was found. This is a problem with the Azure DevOps agent, but I did find a workaround and I thought I would share it.

Workaround

Download libssl1 from security.ubuntu.com

wget 'http://security.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1f-1ubuntu2_amd64.deb'
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Install the package

sudo dpkg -i 'libssl1.1_1.1.1f-1ubuntu2_amd64.deb'
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Delete the package file

rm 'libssl1.1_1.1.1f-1ubuntu2_amd64.deb'
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Then run:

sed -i 's/openssl_conf = openssl_init/#openssl_conf = openssl_init/g' /etc/ssl/openssl.cnf
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If the above is not working for you, you may need to replace libssl1.1_1.1.1f-1ubuntu2_amd64.deb with a different .deb package which you can find here and search for libssl1.

What is the actual issue?

It appears that the Azure agent installer makes use of libssl1 to communicate with Azure DevOps however the installer does not come with libssl1 and Ubuntu 22.04 comes with libssl3. So until the Azure DevOps agent installer is either updated to make use of the later version or comes with a pre-packaged libssl, this workaround will be required.

Links

The issue is tracked and can be found here
Studyraft blog post about this issue