eb395ec558
CentOS 7 reached EOL on 30th June 2024[1] and RHEL 7 ended its maintenance support 2 phase[2] the same date. This change removes the ablity to build images derived from these base images. The centos and centos-minimal elements now default to a DIB_RELEASE value of 9-stream. [1] https://www.redhat.com/en/topics/linux/centos-linux-eol [2] https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux/rhel-7-end-of-maintenance Change-Id: Ic50e08d9f84bbd319129be236d799eade5f40be8
266 lines
10 KiB
Bash
Executable File
266 lines
10 KiB
Bash
Executable File
#!/bin/bash
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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# NOTES on pip install functions
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# It's all installed into /usr/local/bin so override any packages, even
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# if installed later.
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# NOTE(dpawlik): The get-pip.py script is not based on master release.
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# Ensure that uses the latest available version.
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function install_python3_pip {
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python3 /tmp/get-pip.py $pip_args
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python3 -m pip install $pip_args pip
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pip3 install $pip_args virtualenv
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}
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function install_python2_pip {
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python2 /tmp/get-pip.py $pip_args
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python2 -m pip install $pip_args pip
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pip install $pip_args virtualenv
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}
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# force things to happen so our assumptions hold
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pip_args="-U --force-reinstall"
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if [[ $DISTRO_NAME =~ (opensuse|fedora|centos|rhel) ]]; then
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# Default packages
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_do_py3=0
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_extra_repo=''
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# see notes below on this var...
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_clear_old_files=0
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case "$DISTRO_NAME" in
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centos*)
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# note python2-pip in epel
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_extra_repo="--enablerepo=epel"
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packages="python-virtualenv python2-pip"
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if [[ "$(rpm -q --qf '[%{obsoletes}\n]' python2-setuptools)" == "python-setuptools" ]]; then
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# If OpenStack release is installed, then python-setuptools is
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# obsoleted by python2-setuptools
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packages+=" python2-setuptools"
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else
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packages+=" python-setuptools"
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fi
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# see notes below
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_clear_old_files=1
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;;
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fedora)
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if [[ ${DIB_RELEASE} -gt 30 ]]; then
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echo "This element is not supported for this version of Fedora"
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exit 1
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fi
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_do_py3=1
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packages="python2-pip python2-setuptools"
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packages+=" python3-virtualenv python3-pip python3-setuptools"
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;;
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rhel)
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case "$DIB_RELEASE" in
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8)
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_do_py3=1
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_clear_old_files=0
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packages=" python3-virtualenv python3-pip python3-setuptools"
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;;
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esac
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;;
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opensuse)
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case "$DIB_RELEASE" in
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42*)
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packages="python-virtualenv python-pip python-setuptools"
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_clear_old_files=1
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;;
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15*)
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_do_py3=1
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_clear_old_files=1
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# python*-six gets dragged in, and then is a
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# distutils package and won't uninstall. put it
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# here so it gets cleaned.
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packages="python2-virtualenv python2-pip python2-setuptools python2-six"
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packages+=" python3-virtualenv python3-pip python3-setuptools python3-six"
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;;
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tumbleweed)
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echo "This element is not supported for this platform"
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exit 1
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;;
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esac
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;;
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esac
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# GENERAL WARNING : mixing packaged python libraries with
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# pip-installed versions always creates issues. Upstream
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# openstack-infra uses this a lot (especially devstack) but be
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# warned: here be dragons :)
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# Firstly we want to install the system packages. Otherwise later
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# on somebody does a "yum install python-virtualenv" and goes and
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# overwrites the pip installed version with the packaged version,
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# leading to all sorts of weird version issues.
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if [[ $DISTRO_NAME = opensuse ]]; then
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zypper -n install $packages
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else
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${YUM:-yum} ${_extra_repo} install -y $packages
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fi
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# pip10 onwards (unlike earlier versions) will not uninstall
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# packages installed by distutils (note this is only a subset of
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# packages that don't use setuptools for various reasons; the
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# problem is essentially they do not include a manifest of files
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# in the package to delete, so pip was just guessing). We give it
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# a little help by clearing out the files from the packages we are
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# about to re-install so pip doesn't think anything is installed.
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# See: https://github.com/pypa/pip/issues/4805
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#
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# This is only necessary on old CentOS and suse -- for complicated
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# reasons of course. On Fedora, the Python2 virtualenv packages
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# are *not* distutils based and pip overwrites them correctly.
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# For python3, pip has changed to not overwrite system packages (a
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# long standing difference between Debuntu and Fedora), but a
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# number of tools run with "python3 -Es" to isolate themselves to
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# the package installed versions. So we definitely don't want to
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# clear the packaged versions out in that case.
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if [[ ${_clear_old_files} == 1 ]]; then
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for pkg in $packages; do
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rpm -ql $pkg | xargs rm -rf
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done
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fi
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# install the latest python2 pip; this overwrites packaged pip
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# NOTE(dpawlik) The get-pip.py script is not base on master release.
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# Ensure that is uses latest available version.
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python /tmp/get-pip.py ${pip_args}
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python -m pip install ${pip_args} pip
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# Install latest setuptools; there is a slight chicken-egg issue in
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# that pip requires setuptools for some operations like building a
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# wheel. But this simple install should be fine.
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pip install ${pip_args} setuptools
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if [[ $_do_py3 -eq 1 ]]; then
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# Repeat above for python3
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# python2 on fedora always installs into /usr/bin. Move pip2
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# binary out, as we want "pip" in the final image to be
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# python2 for historical reasons.
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mv /usr/bin/pip /usr/bin/pip2
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# You would think that installing python3 bits first, then
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# python2 would work -- alas get-pip.py doesn't seem to leave
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# python3 alone:
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# https://github.com/pypa/pip/issues/4435
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# NOTE(dpawlik) The get-pip.py script is not base on master release.
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# Ensure that is uses latest available version.
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python3 /tmp/get-pip.py ${pip_args}
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python3 -m pip install ${pip_args} pip
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pip3 install ${pip_args} setuptools
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# on < 27, this installed pip3 to /usr/bin/pip. On >=27 it's
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# /usr/local/bin/pip. reclaim /usr/bin/pip back to pip2 and
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# remove the /usr/local/bin/pip (i.e. python3 version) if it
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# exists, so that "pip" calls pip2 always. if we want pip3 we
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# call it explicitly.
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ln -sf /usr/bin/pip2 /usr/bin/pip
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rm -f /usr/local/bin/pip
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# So on Fedora, there are now supposed to be two versions of
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# python3 setuptools installed; the one installed by pip in
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# /usr/local and the one installed by the system
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# python3-setuptools rpm package in /usr/local. The idea is
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# that packaged python tools use the "system" python (with -Es
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# flag) and are isolated from pip installs ... except there is
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# an issue where pip clears out the RPM version files before
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# installing it's isolated version:
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# https://bugzilla.redhat.com/show_bug.cgi?id=1550368
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#
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# Thus we need to *reinstall* the RPM version now, so those
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# files come back and system tools continue to work
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if [[ $DISTRO_NAME != opensuse ]]; then
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dnf reinstall -y python3-setuptools
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fi
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fi
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# now install latest virtualenv. it vendors stuff it needs so
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# doesn't have issues with other system packages.
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# python[2|3]-virtualenv package has installed versioned scripts
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# (/usr/bin/virtualenv-[2|3]) but upstream does not! (see [2]).
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# For consistency, reinstall so we're just left with python2's
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# version. Note this is a rather moot point, the usual way we get
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# a python3 environment is to call "virtualenv -p python3 foo" and
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# that works to create a python3 virtualenv, even if using
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# python2's version. Thus we probably don't *really* need to
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# "pip3 install virtualenv". What we don't want is "virtualenv
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# foo" creating a python3 virtualenv by default, because that
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# confuses a lot of legacy code.
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#
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#[2] http://pkgs.fedoraproject.org/cgit/rpms/python-virtualenv.git/tree/python-virtualenv.spec#n116)
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pip install ${pip_args} virtualenv
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mv /usr/bin/virtualenv /usr/bin/virtualenv2
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if [[ $_do_py3 -eq 1 ]]; then
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pip3 install ${pip_args} virtualenv
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fi
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# Reclaim virtualenv to virtualenv2; similar to above, on fedora
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# >27 the pip3 version has gone into /usr/local/bin; remove it so
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# only /usr/bin/virtualenv exists
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ln -sf /usr/bin/virtualenv2 /usr/bin/virtualenv
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rm -f /usr/local/bin/virtualenv
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# at this point, we should have the latest
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# pip/setuptools/virtualenv packages for python2 & 3, and
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# "/usr/bin/pip" and "/usr/bin/virtualenv" should be python2
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# versions.
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if [[ $DISTRO_NAME = opensuse ]]; then
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for pkg in virtualenv pip setuptools; do
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cat - >> /etc/zypp/locks <<EOF
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type: package
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match_type: glob
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case_sensitive: on
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solvable_name: python-$pkg
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EOF
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done
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else
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# Add this to exclude so that we don't install a later package
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# over it if it updates. Note that fedora-minimal, bootstrapped
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# via yum, can have an old yum.conf around, so look for dnf first.
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if [[ -f /etc/dnf/dnf.conf ]]; then
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conf=/etc/dnf/dnf.conf
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elif [[ -f /etc/yum.conf ]]; then
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conf=/etc/yum.conf
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else
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die "No conf to modify?"
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fi
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echo "exclude=$packages" >> ${conf}
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fi
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elif [[ $DISTRO_NAME = gentoo ]]; then
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packages="dev-python/pip dev-python/virtualenv"
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emerge -U $packages
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elif [[ $DIB_RELEASE = bullseye ]]; then
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packages="python3-pip python3-virtualenv"
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apt-get -y install $packages
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install_python3_pip
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else
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# pre-install packages so dependencies are there. We will
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# overwrite with latest below.
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packages="python-pip python-virtualenv"
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# Unfortunately older ubuntu (trusty) doesn't have a
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# python3-virtualenv package -- it seems it wasn't ready at the
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# time and you had to use "python -m venv". Since then virtualenv
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# has gained 3.4 support so the pip install below will work
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if [[ ${DIB_PYTHON_VERSION} == 3 ]]; then
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packages+=" python3-pip python3-virtualenv"
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fi
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apt-get -y install $packages
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install_python2_pip
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if [[ ${DIB_PYTHON_VERSION} == 3 ]]; then
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install_python3_pip
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fi
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fi
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