Openstack installation issue on ubuntu-18.04

Question

$ cat /etc/issue
Ubuntu 18.04.6 LTS \n \l

I'm following this Link to install Openstack using Devstack. However git clone https://git.openstack.org/openstack-dev/devstack master branch's ./stack.sh fails with below error.

+./stack.sh:main:230                       SUPPORTED_DISTROS='bullseye|focal|f34|opensuse-15.2|opensuse-tumbleweed|rhel8|rhel9|openEuler-20.03'
+./stack.sh:main:232                       [[ ! bionic =~ bullseye|focal|f34|opensuse-15.2|opensuse-tumbleweed|rhel8|rhel9|openEuler-20.03 ]]

WARNING: this script has not been tested on bionic
+./stack.sh:main:234                       [[ '' != \y\e\s ]]
+./stack.sh:main:235                       die 235 'If you wish to run this script anyway run with FORCE=yes'
+functions-common:die:253                  local exitcode=0
+functions-common:die:254                  set +o xtrace
[Call Trace]
./stack.sh:235:die
[ERROR] ./stack.sh:235 If you wish to run this script anyway run with FORCE=yes
/opt/stack/devstack/functions-common: line 299: /opt/stack/logs/error.log: No such file or directory

Even ./stack.sh FORCE=yes and stable/newton, stable/pike, stable/victoria & stable/xena branch also results the same above error.

Does the support for Ubuntu 18.04.6 LTS (bionic) deprecated?

Answer 1

Does the support for Ubuntu 18.04.6 LTS (bionic) deprecated?

Not exactly.

As a general rule, the latest version of the script targets the latest supported (by Openstack) versions of the host operating systems. Older versions may work. But there might be minor issues ... that someone with the ability to read / diagnose shell scripts ought to be able to figure out.

If you need a version of the script that explicitly supports (say) Bionic, there will be one in the Git6 repo history.

^{(This is in line with general OpenStack Ubuntu support. The latest OpenStack release is Wallably and Wallaby no longer supports Bionic. The Bionic -> Focal cross-over release of Openstack was Ussuri; see https://ubuntu.com/openstack/docs/supported-versions. Note that Devstack is not an official OpenStack product, but they are effectively forced to track the "supported release" rules, at least loosely.)}

---

The version of the Devstack script that you checked out does not explicitly supports Focal rather than Bionic.

If you look at https://opendev.org/openstack/devstack/src/branch/master/stack.sh on line 230, it currently says:

# Warn users who aren't on an explicitly supported distro, but allow them to
# override check and attempt installation with ``FORCE=yes ./stack``
SUPPORTED_DISTROS="bullseye|focal|f34|opensuse-15.2|opensuse-tumbleweed|rhel8|rhel9|openEuler-20.03" 

If you want a version of devstack that explicitly supports bionic, use git blame (or whatever) to track changes to the SUPPORTED_DISTROS line. You should be able to find some versions where FORCE is not necessary.

---

On the other hand .... the error message:

/opt/stack/devstack/functions-common: line 299: /opt/stack/logs/error.log: 
     No such file or directory

implies that the script is assuming that a file or directory already exists. You could probably just create it / them by hand. (It is clearly just a log file / directory.)