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Add variable for check installing python3 in yum element

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If client have not internet or have some limitation, such as firewall/proxy/etc. this step will stop build image with error. Client must have possible override of URL for pass this step.

Change-Id: Iafe3283665a437d0a9cf83a93ff66c0613310b69
This commit is contained in:
Frikin Evgenii 2022-09-09 08:16:29 +00:00
parent b706802a1c
commit a9edef6548
2 changed files with 17 additions and 15 deletions
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30
diskimage_builder/elements/yum/README.rst
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@ -22,20 +22,22 @@ The yum repository can also be configured by defining `DIB_YUM_REPO_PACKAGE` as
a yum available package or a URL to an rpm file. This package can install repo
files with any associated keys and certificates.
Environment Variables for Module Selection during Image Creation
----------------------------------------------------------------
The following environment variable is used to select module streams to be
enabled during an image build on Yum/DNF based distributions. Any existing
stream for the given module is first disabled prior to enabling
the specified stream.
Environment Variables
---------------------
#### DIB\_DNF\_MODULE\_STREAMS
This is a space-separated list of module streams to enable prior to any
RPMs being installed.
DIB_DNF_MODULE_STREAMS
:Required: No
:Default: None
:Description: The following environment variable is used to select module streams
to be enabled during an image build on Yum/DNF based distributions.Any existing
stream for the given module is first disabled prior to enabling the specified
stream.
:Example: ``DIB_DNF_MODULE_STREAMS='virt:8.2 container-tools:3.0'``
Image Build Module Selection Example
------------------------------------
When using Train release on RHEL/CentOS/Fedora, one must select the appropriate
virt and container-tools module streams:
DIB_CENTOS_7_PREINSTALL_EPEL_URL_PACKAGE
:Required: No
:Default: https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
:Description: The environment variable is used to override default value in pre-install
stage to install epel repository from custom source
:Example: ``DIB_CENTOS_7_PREINSTALL_EPEL_URL_PACKAGE=http://repos.example.com/epel/epel-latest-7.noarch.rpm``
DIB_DNF_MODULE_STREAMS='virt:8.2 container-tools:3.0'

2
diskimage_builder/elements/yum/pre-install.d/01-00-centos-python3
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@ -17,7 +17,7 @@ if [[ ${DISTRO_NAME} =~ (centos|rhel) && ${DIB_RELEASE} == 7 ]]; then
# early stage.
yum install -y python3
# NOTE(dpawlik) The epel-release package is not available in RHEL.
yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
yum install -y ${DIB_CENTOS_7_PREINSTALL_EPEL_URL_PACKAGE:-https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm}
yum install -y python36-PyYAML
yum remove -y epel-release
elif [[ ${DISTRO_NAME} =~ (centos|rhel) && ${DIB_RELEASE} > 7 ]]; then