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xcat2 / xcat-inventory

An inventory tool for xcat cluster
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xcat-inventory failed to install on rhels8.1 #221

Closed cxhong closed 4 years ago

cxhong commented 4 years ago

Current xcat-inventory only supports python2. On rhels8.1, python3 is supported. the xcat-inventory depends packages are different on the python3 environment.

 # wget https://github.com/xcat2/xcat-inventory/releases/download/v0.1.6/xcat-inventory-0.1.6-c0.noarch.rpm
# # yum install ./xcat-inventory-0.1.6-c0.noarch.rpm
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Last metadata expiration check: 0:53:51 ago on Fri 21 Feb 2020 02:39:49 PM EST.
Error:
 Problem: conflicting requests
  - nothing provides python-sqlalchemy >= 0.8.0 needed by xcat-inventory-1:0.1.6-c0.noarch
  - nothing provides python-six needed by xcat-inventory-1:0.1.6-c0.noarch
  - nothing provides PyYAML needed by xcat-inventory-1:0.1.6-c0.noarch
  - nothing provides python-psycopg2 needed by xcat-inventory-1:0.1.6-c0.noarch
  - nothing provides python-jinja2 needed by xcat-inventory-1:0.1.6-c0.noarch
  - nothing provides MySQL-python needed by xcat-inventory-1:0.1.6-c0.noarch
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
cxhong commented 4 years ago

on the xcat-inventory.spec file, the packages are needed for python2

Requires: python-psycopg2 python-sqlalchemy >= 0.8.0 MySQL-python PyYAML python-six python-jinja2 git

for the python3, following packages are needed

Requires: docopt SQLAlchemy PyMySQL PyYAML deepdiff sh jinja2 git

If the system is running the postgresql, the psycopg2 package is needed and following needs to be configured before install psycopg2

# export PATH=/usr/lib64/pgsql/postgresql-9.2/bin:$PATH
# export LD_LIBRARY_PATH=/usr/lib64:/usr/lib64/pgsql/postgresql-9.2/lib
# ln -s /usr/lib64/libpq.so.5.10 /usr/lib64/libpq.a
cxhong commented 4 years ago

@peterwywong , all those dependent packages you can install with pip3 install <packagename>. we want only one spec file, so, in the spec file, need to check if the system has python2 or python3

if python2 {
    Requires: python-psycopg2 python-sqlalchemy >= 0.8.0 MySQL-python PyYAML python-six python-jinja2 git 
} else if python3 {
    Requires: docopt SQLAlchemy PyMySQL PyYAML deepdiff sh jinja2 git
}
besawn commented 4 years ago

Comparing python package differences between RHEL7.6 and RHEL8.1:

[root@fs2vm100 xcat-inventory]# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.6 (Maipo)

[root@fs2vm100 xcat-inventory]# for i in psycopg2 sqlalchemy PyMySQL PyYAML six jinja2; do yum list -q py*$i; done
Installed Packages
python-psycopg2.ppc64le                                            2.5.1-3.el7                                          @local-rhels7.6-ppc64le--install-REPO-os-rhels-7.6-rhels7.6-ga-ppc64le
Available Packages
python3-psycopg2.ppc64le                                           2.7.7-2.el7                                          epel                                                                  
python34-psycopg2.ppc64le                                          2.7.7-2.el7                                          epel                                                                  
Installed Packages
python-sqlalchemy.ppc64le                                             0.9.8-2.el7                                       @local-rhels7.6-ppc64le--install-REPO-os-rhels-7.6-rhels7.6-ga-ppc64le
Available Packages
python-zope-sqlalchemy.noarch                                         0.7.6-1.el7                                       epel                                                                  
python2-flask-sqlalchemy.noarch                                       2.3.2-1.el7                                       epel                                                                  
python34-sqlalchemy.ppc64le                                           1.1.3-3.el7                                       epel                                                                  
python36-sqlalchemy.ppc64le                                           1.1.3-3.el7                                       epel                                                                  
Available Packages
python2-PyMySQL.noarch                                                                             0.9.2-3.el7                                                                            epel
python36-PyMySQL.noarch                                                                            0.9.2-3.el7                                                                            epel
Available Packages
python2-pyyaml.noarch                                                                              3.10-0.el7                                                                             epel
python34-PyYAML.ppc64le                                                                            3.12-1.el7                                                                             epel
python36-PyYAML.ppc64le                                                                            3.12-1.el7                                                                             epel
Installed Packages
python-six.noarch                                                                           1.9.0-2.el7                                                                          @anaconda/7.6
Available Packages
python2-six.noarch                                                                          1.9.0-0.el7                                                                          epel         
python34-six.noarch                                                                         1.12.0-1.el7                                                                         epel         
python36-six.noarch                                                                         1.12.0-1.el7                                                                         epel         
Installed Packages
python-jinja2.noarch                                             2.7.2-2.el7                                            @local-rhels7.6-ppc64le--install-REPO-os-rhels-7.6-rhels7.6-ga-ppc64le
Available Packages
python34-jinja2.noarch                                           2.8.1-2.el7                                            epel                                                                  
python36-jinja2.noarch                                           2.8.1-2.el7                                            epel 
[root@c910f03c09k18 xcat-inventory]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.1 (Ootpa)

[root@c910f03c09k18 xcat-inventory]# for i in psycopg2 sqlalchemy PyMySQL PyYAML six jinja2; do yum list -q py*$i; done
Available Packages
python2-psycopg2.ppc64le                         2.7.5-7.module+el8.1.0+3111+de3f2d8e                          local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-psycopg2.ppc64le                         2.7.5-7.el8                                                   local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
Available Packages
python2-sqlalchemy.ppc64le                        1.3.2-1.module+el8.1.0+2994+98e054d6                         local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-sqlalchemy.ppc64le                        1.3.2-1.module+el8.1.0+3334+5cb623d7                         local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
Available Packages
python2-PyMySQL.noarch                          0.8.0-10.module+el8.1.0+3111+de3f2d8e                          local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-PyMySQL.noarch                          0.8.0-10.module+el8.1.0+3334+5cb623d7                          local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
Available Packages
python2-pyyaml.ppc64le                          3.12-16.module+el8.1.0+3111+de3f2d8e                           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-pyyaml.ppc64le                          3.12-12.el8                                                    local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-BaseOS   
Installed Packages
python3-six.noarch                                 1.11.0-8.el8                                                @anaconda                                                                      
Available Packages
python2-six.noarch                                 1.11.0-5.module+el8.1.0+3111+de3f2d8e                       local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-spacewalk-usix.noarch                      2.8.1-5.module+el8.1.0+3115+d1f204ad                        local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
Available Packages
python2-jinja2.noarch                           2.10-8.module+el8.1.0+3111+de3f2d8e                            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream
python3-jinja2.noarch                           2.10.1-2.el8_0                                                 local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream

Two observations: 1.) Both RHEL7 and RHEL8 have access to either python2 or python3 versions of most of these packages, but the naming conventions of the rpms are different between RHEL7 and RHEL8. 2.) For most of these packages, epel is required for RHEL7 and AppStream for RHEL8. Most of these packages are not included in the base OS distribution.

besawn commented 4 years ago

With no modifications to the spec file, yum cannot find the required packages on RHEL8.1, as expected:

[root@c910f03c09k18 xcat-inventory]# cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.1 (Ootpa)

[root@c910f03c09k18 xcat-inventory]# yum install /root/rpmbuild/RPMS/noarch/xcat-inventory-0.1.6-c63.noarch.rpm
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Last metadata expiration check: 2:33:32 ago on Wed 26 Feb 2020 02:25:15 PM EST.
Error: 
 Problem: conflicting requests
  - nothing provides python-sqlalchemy >= 0.8.0 needed by xcat-inventory-1:0.1.6-c63.noarch
  - nothing provides python-six needed by xcat-inventory-1:0.1.6-c63.noarch
  - nothing provides PyYAML needed by xcat-inventory-1:0.1.6-c63.noarch
  - nothing provides python-psycopg2 needed by xcat-inventory-1:0.1.6-c63.noarch
  - nothing provides python-jinja2 needed by xcat-inventory-1:0.1.6-c63.noarch
  - nothing provides MySQL-python needed by xcat-inventory-1:0.1.6-c63.noarch
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
besawn commented 4 years ago

Change the Requires:line to match the RHEL8.1 package names:

# Before:
Requires: python-psycopg2 python-sqlalchemy >= 0.8.0 MySQL-python PyYAML python-six python-jinja2 git
# After:
Requires: python2-psycopg2 python2-sqlalchemy >= 0.8.0 python2-PyMySQL python2-pyyaml python2-six python2-jinja2 git

Installation succeeds on RHEL8.1:

[root@c910f03c09k18 xcat-inventory]# yum install /root/rpmbuild/RPMS/noarch/xcat-inventory-0.1.6-c63.noarch.rpm
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Last metadata expiration check: 2:38:34 ago on Wed 26 Feb 2020 02:25:15 PM EST.
Dependencies resolved.
==============================================================================================================================================================================================
 Package                         Architecture   Version                                          Repository                                                                              Size
==============================================================================================================================================================================================
Installing:
 xcat-inventory                  noarch         1:0.1.6-c63                                      @commandline                                                                            55 k
Installing dependencies:
 python2                         ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        109 k
 python2-PyMySQL                 noarch         0.8.0-10.module+el8.1.0+3111+de3f2d8e            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        156 k
 python2-babel                   noarch         2.5.1-9.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        4.8 M
 python2-jinja2                  noarch         2.10-8.module+el8.1.0+3111+de3f2d8e              local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        255 k
 python2-libs                    ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        6.1 M
 python2-markupsafe              ppc64le        0.23-19.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         48 k
 python2-pip-wheel               noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.2 M
 python2-psycopg2                ppc64le        2.7.5-7.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        179 k
 python2-pytz                    noarch         2017.2-12.module+el8.1.0+3111+de3f2d8e           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         54 k
 python2-pyyaml                  ppc64le        3.12-16.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        184 k
 python2-setuptools              noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        643 k
 python2-setuptools-wheel        noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        289 k
 python2-six                     noarch         1.11.0-5.module+el8.1.0+3111+de3f2d8e            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         38 k
 python2-sqlalchemy              ppc64le        1.3.2-1.module+el8.1.0+2994+98e054d6             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.9 M
Installing weak dependencies:
 python2-pip                     noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        2.0 M
Enabling module streams:
 python27                                       2.7                                                                                                                                          

Transaction Summary
==============================================================================================================================================================================================
Install  16 Packages

Total size: 18 M
Total download size: 18 M
Installed size: 78 M
Is this ok [y/N]: y
Downloading Packages:
(1/15): python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                      1.4 MB/s | 156 kB     00:00    
(2/15): python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le.rpm                                                                                            909 kB/s | 109 kB     00:00    
(3/15): python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                         7.4 MB/s | 255 kB     00:00    
(4/15): python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                          17 MB/s | 4.8 MB     00:00    
(5/15): python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                   368 kB/s |  48 kB     00:00    
(6/15): python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le.rpm                                                                                        32 MB/s | 6.1 MB     00:00    
(7/15): python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                     24 MB/s | 1.2 MB     00:00    
(8/15): python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                     4.7 MB/s | 179 kB     00:00    
(9/15): python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                        2.4 MB/s |  54 kB     00:00    
(10/15): python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                          24 MB/s | 2.0 MB     00:00    
(11/15): python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                      9.5 MB/s | 184 kB     00:00    
(12/15): python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                            14 MB/s | 289 kB     00:00    
(13/15): python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                         3.1 MB/s |  38 kB     00:00    
(14/15): python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le.rpm                                                                                   35 MB/s | 1.9 MB     00:00    
(15/15): python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                 4.2 MB/s | 643 kB     00:00    
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                          35 MB/s |  18 MB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                      1/1 
  Installing       : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                              1/16 
  Installing       : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                      2/16 
  Installing       : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                         3/16 
  Installing       : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                            4/16 
  Installing       : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                    5/16 
  Installing       : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              6/16 
  Running scriptlet: python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              6/16 
  Installing       : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        7/16 
  Installing       : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     8/16 
  Installing       : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       9/16 
  Installing       : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                         10/16 
  Installing       : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                          11/16 
  Installing       : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                          12/16 
  Installing       : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                        13/16 
  Installing       : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           14/16 
  Installing       : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                    15/16 
  Installing       : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
  Running scriptlet: xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
  Verifying        : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              1/16 
  Verifying        : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        2/16 
  Verifying        : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           3/16 
  Verifying        : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           4/16 
  Verifying        : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                         5/16 
  Verifying        : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     6/16 
  Verifying        : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                            7/16 
  Verifying        : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                      8/16 
  Verifying        : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       9/16 
  Verifying        : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                         10/16 
  Verifying        : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                        11/16 
  Verifying        : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                   12/16 
  Verifying        : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                             13/16 
  Verifying        : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           14/16 
  Verifying        : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                    15/16 
  Verifying        : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
Installed products updated.

Installed:
  xcat-inventory-1:0.1.6-c63.noarch                                                          python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                        
  python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                     python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                    
  python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                  python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                       
  python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                 
  python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                             python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                   
  python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                 python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                     
  python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                           python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                          
  python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                   python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                 

Complete!

But this package will not install on RHEL7.X, as expected due to different naming conventions:

[root@fs2vm100 xcat-inventory]# rpm -ivh /tmp/xcat-inventory-0.1.6-c63.noarch.rpm 
error: Failed dependencies:
    python2-PyMySQL is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-jinja2 is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-psycopg2 is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-pyyaml is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-six is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-sqlalchemy >= 0.8.0 is needed by xcat-inventory-1:0.1.6-c63.noarch
peterwywong commented 4 years ago

That is a great find, Nate.

I think it gets back to my earlier thought that those listed out for "Requires:" need to be RPMs, i.e., dependent RPMs, not dependent Python packages.

Currently, on fs2vm100 (RHEL 7.6 with Python2), we have Requires: python-psycopg2 python-sqlalchemy >= 0.8.0 MySQL-python PyYAML python-six python-jinja2 git

Some names are RPM names, and some Python package names such as MySQL-python and PyYAML. However, there is NO complaint when we do "rpm -ivh xcat-inventory....rpm". So, It gives an impression that they need NOT be RPMs. But it seems to be not true.

Its behavior seems to be different on c910f03c09k18 (RHEL 8.1 with python3). I guess many of the RPMs were not installed yet. After their installations, with names changed by Nate, xcat-inventory RPM is installed fine.

Let's go back to c910f03c09k18 (RHEL 8.1 with Python3) and look at the Requires names for python3. Requires: docopt SQLAlchemy PyMySQL PyYAML deepdiff sh jinja2 git

I changed it to Requires: docopt python3-sqlalchemy python3-PyMySQL python3-pyyaml deepdiff sh python3-jinja2 git (Note: I don't see RPMs for docopt, deepdiff and sh. And I install all python3 RPMs above.)

[root@c910f03c09k18 noarch]# rpm -ivh xcat-inventory-0.1.6-c63.noarch.rpm error: Failed dependencies: deepdiff is needed by xcat-inventory-1:0.1.6-c63.noarch docopt is needed by xcat-inventory-1:0.1.6-c63.noarch sh is needed by xcat-inventory-1:0.1.6-c63.noarch

It kind of confirms that the list of names for "Requires" should be RPM names, not Python package names. docpot, deepdiff and sh have been installed via "pip3 install".

Here are my questions: (1) Why doesn't "rpm -ivh xcat-inventory...rpm" complaint about not having python2-PyySQL RPM on fs2vm100 (RHEL 7.6 with Python 2)? Only Python package MySQL-python is installed there? Again, it gives an impression that Python packages are acceptable for rpm -i or yum install, which seems to be false.

(2) Indeed, we can remove docopt, deepdiff and sh and the "rpm -i" would complete successfully. Casandra, would you please give us information as to why they are included there? You must have identified them as requirements.

(3) If we can remove docopt, deepdiff, then why do we need any of them in the first place?

(4) We have MySQL-python installed as a Python package. We also have python2-PyMySQL installed as a RPM. Do they give out identical content and be put in the same place? More investigation is needed.

It is great that we know more now than yesterday :) .

besawn commented 4 years ago

For question 1, we should be testing the installation and removal using yum and not rpm. yum will attempt to resolve the dependencies required by our rpm, but rpm -i will either only succeed or fail based on whether the dependencies have already been installed. In the case where you are seeing rpm -i succeed, it is only because the dependencies have already been installed previously.

Example:

# rpm -ivh will not succeed when the dependencies have not yet been installed:
[root@c910f03c09k18 xcat-inventory]# rpm -ivh /root/rpmbuild/RPMS/noarch/xcat-inventory-0.1.6-c63.noarch.rpm
error: Failed dependencies:
    python2-PyMySQL is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-jinja2 is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-psycopg2 is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-pyyaml is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-six is needed by xcat-inventory-1:0.1.6-c63.noarch
    python2-sqlalchemy >= 0.8.0 is needed by xcat-inventory-1:0.1.6-c63.noarch

# yum install will succeed if it is able to fulfill the dependencies
[root@c910f03c09k18 xcat-inventory]# yum -y install /root/rpmbuild/RPMS/noarch/xcat-inventory-0.1.6-c63.noarch.rpm
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Last metadata expiration check: 2:45:48 ago on Wed 26 Feb 2020 05:25:27 PM EST.
Dependencies resolved.
==============================================================================================================================================================================================
 Package                         Architecture   Version                                          Repository                                                                              Size
==============================================================================================================================================================================================
Installing:
 xcat-inventory                  noarch         1:0.1.6-c63                                      @commandline                                                                            55 k
Installing dependencies:
 python2                         ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        109 k
 python2-PyMySQL                 noarch         0.8.0-10.module+el8.1.0+3111+de3f2d8e            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        156 k
 python2-babel                   noarch         2.5.1-9.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        4.8 M
 python2-jinja2                  noarch         2.10-8.module+el8.1.0+3111+de3f2d8e              local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        255 k
 python2-libs                    ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        6.1 M
 python2-markupsafe              ppc64le        0.23-19.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         48 k
 python2-pip-wheel               noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.2 M
 python2-psycopg2                ppc64le        2.7.5-7.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        179 k
 python2-pytz                    noarch         2017.2-12.module+el8.1.0+3111+de3f2d8e           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         54 k
 python2-pyyaml                  ppc64le        3.12-16.module+el8.1.0+3111+de3f2d8e             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        184 k
 python2-setuptools              noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        643 k
 python2-setuptools-wheel        noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3           local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        289 k
 python2-six                     noarch         1.11.0-5.module+el8.1.0+3111+de3f2d8e            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         38 k
 python2-sqlalchemy              ppc64le        1.3.2-1.module+el8.1.0+2994+98e054d6             local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.9 M
Installing weak dependencies:
 python2-pip                     noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3            local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        2.0 M

Transaction Summary
==============================================================================================================================================================================================
Install  16 Packages

Total size: 18 M
Total download size: 18 M
Installed size: 78 M
Downloading Packages:
(1/15): python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le.rpm                                                                                            8.5 MB/s | 109 kB     00:00    
(2/15): python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                       11 MB/s | 156 kB     00:00    
(3/15): python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                          21 MB/s | 255 kB     00:00    
(4/15): python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                    12 MB/s |  48 kB     00:00    
(5/15): python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                          49 MB/s | 4.8 MB     00:00    
(6/15): python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                     51 MB/s | 1.2 MB     00:00    
(7/15): python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                      36 MB/s | 179 kB     00:00    
(8/15): python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                         17 MB/s |  54 kB     00:00    
(9/15): python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le.rpm                                                                                        41 MB/s | 184 kB     00:00    
(10/15): python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                          18 MB/s | 2.0 MB     00:00    
(11/15): python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                                  37 MB/s | 643 kB     00:00    
(12/15): python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch.rpm                                                                                          14 MB/s |  38 kB     00:00    
(13/15): python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch.rpm                                                                            20 MB/s | 289 kB     00:00    
(14/15): python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le.rpm                                                                                   57 MB/s | 1.9 MB     00:00    
(15/15): python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le.rpm                                                                                       29 MB/s | 6.1 MB     00:00    
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                          79 MB/s |  18 MB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                      1/1 
  Installing       : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                              1/16 
  Installing       : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                      2/16 
  Installing       : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                         3/16 
  Installing       : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                            4/16 
  Installing       : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                    5/16 
  Installing       : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              6/16 
  Running scriptlet: python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              6/16 
  Installing       : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        7/16 
  Installing       : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     8/16 
  Installing       : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       9/16 
  Installing       : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                         10/16 
  Installing       : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                          11/16 
  Installing       : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                          12/16 
  Installing       : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                        13/16 
  Installing       : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           14/16 
  Installing       : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                    15/16 
  Installing       : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
  Running scriptlet: xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
  Verifying        : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              1/16 
  Verifying        : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        2/16 
  Verifying        : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           3/16 
  Verifying        : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           4/16 
  Verifying        : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                         5/16 
  Verifying        : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     6/16 
  Verifying        : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                            7/16 
  Verifying        : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                      8/16 
  Verifying        : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       9/16 
  Verifying        : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                         10/16 
  Verifying        : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                        11/16 
  Verifying        : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                   12/16 
  Verifying        : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                             13/16 
  Verifying        : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           14/16 
  Verifying        : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                    15/16 
  Verifying        : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
Installed products updated.

Installed:
  xcat-inventory-1:0.1.6-c63.noarch                                                          python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                        
  python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                     python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                    
  python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                  python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                       
  python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                 
  python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                             python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                   
  python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                 python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                     
  python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                           python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                          
  python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                   python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                 

Complete!

# Erase just our rpm using the rpm command, but leave all of the dependencies installed
[root@c910f03c09k18 xcat-inventory]# rpm -e xcat-inventory

# Observe that we can successfully install using rpm because the dependencies are still present
[root@c910f03c09k18 xcat-inventory]# rpm -ivh /root/rpmbuild/RPMS/noarch/xcat-inventory-0.1.6-c63.noarch.rpm
Verifying...                          ################################# [100%]
Preparing...                          ################################# [100%]
Updating / installing...
   1:xcat-inventory-1:0.1.6-c63       ################################# [100%]

# Erase using yum and observe that the dependencies are also removed
[root@c910f03c09k18 xcat-inventory]# yum -y erase xcat-inventory
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Modular dependency problems:

 Problem 1: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBD-Pg:3.7:8010020190322121805:0d1d6681-0.ppc64le
 Problem 2: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020190322125518:073fa5fe-0.ppc64le
 Problem 3: conflicting requests
  - nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020190322130042:16b3ab4d-0.ppc64le
Dependencies resolved.
==============================================================================================================================================================================================
 Package                         Architecture   Version                                         Repository                                                                               Size
==============================================================================================================================================================================================
Removing:
 xcat-inventory                  noarch         1:0.1.6-c63                                     @@commandline                                                                           249 k
Removing unused dependencies:
 python2                         ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073          @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        145 k
 python2-PyMySQL                 noarch         0.8.0-10.module+el8.1.0+3111+de3f2d8e           @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        743 k
 python2-babel                   noarch         2.5.1-9.module+el8.1.0+3111+de3f2d8e            @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         20 M
 python2-jinja2                  noarch         2.10-8.module+el8.1.0+3111+de3f2d8e             @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.2 M
 python2-libs                    ppc64le        2.7.16-12.module+el8.1.0+4148+33a50073          @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         29 M
 python2-markupsafe              ppc64le        0.23-19.module+el8.1.0+3111+de3f2d8e            @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        166 k
 python2-pip                     noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3           @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        8.3 M
 python2-pip-wheel               noarch         9.0.3-14.module+el8.1.0+3446+c3d52da3           @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        1.3 M
 python2-psycopg2                ppc64le        2.7.5-7.module+el8.1.0+3111+de3f2d8e            @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        689 k
 python2-pytz                    noarch         2017.2-12.module+el8.1.0+3111+de3f2d8e          @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        185 k
 python2-pyyaml                  ppc64le        3.12-16.module+el8.1.0+3111+de3f2d8e            @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        769 k
 python2-setuptools              noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3          @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        3.0 M
 python2-setuptools-wheel        noarch         39.0.1-11.module+el8.1.0+3446+c3d52da3          @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        339 k
 python2-six                     noarch         1.11.0-5.module+el8.1.0+3111+de3f2d8e           @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream        104 k
 python2-sqlalchemy              ppc64le        1.3.2-1.module+el8.1.0+2994+98e054d6            @local-rhels8.1.0-ppc64le--install-shared_repo-ISOs-rhels8.1.0-ppc64le-AppStream         11 M

Transaction Summary
==============================================================================================================================================================================================
Remove  16 Packages

Freed space: 78 M
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                      1/1 
  Running scriptlet: xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                   1/16 
  Erasing          : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                   1/16 
  Erasing          : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           2/16 
  Erasing          : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           3/16 
  Erasing          : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                          4/16 
  Erasing          : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     5/16 
  Erasing          : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       6/16 
  Erasing          : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                         7/16 
  Erasing          : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                     8/16 
  Erasing          : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        9/16 
  Erasing          : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           10/16 
  Erasing          : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                           11/16 
  Erasing          : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                   12/16 
  Erasing          : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                             13/16 
  Running scriptlet: python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                             13/16 
  Erasing          : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                        14/16 
  Erasing          : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                     15/16 
  Erasing          : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                             16/16 
  Running scriptlet: python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                             16/16 
  Verifying        : python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                              1/16 
  Verifying        : python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                        2/16 
  Verifying        : python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           3/16 
  Verifying        : python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           4/16 
  Verifying        : python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                                                                                         5/16 
  Verifying        : python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                     6/16 
  Verifying        : python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                            7/16 
  Verifying        : python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                                                                                      8/16 
  Verifying        : python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                       9/16 
  Verifying        : python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                         10/16 
  Verifying        : python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                                                                                        11/16 
  Verifying        : python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                                   12/16 
  Verifying        : python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                                                                                             13/16 
  Verifying        : python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                                                                                           14/16 
  Verifying        : python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                                                                                    15/16 
  Verifying        : xcat-inventory-1:0.1.6-c63.noarch                                                                                                                                  16/16 
Installed products updated.

Removed:
  xcat-inventory-1:0.1.6-c63.noarch                                                          python2-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                          
  python2-PyMySQL-0.8.0-10.module+el8.1.0+3111+de3f2d8e.noarch                               python2-babel-2.5.1-9.module+el8.1.0+3111+de3f2d8e.noarch                                       
  python2-jinja2-2.10-8.module+el8.1.0+3111+de3f2d8e.noarch                                  python2-libs-2.7.16-12.module+el8.1.0+4148+33a50073.ppc64le                                     
  python2-markupsafe-0.23-19.module+el8.1.0+3111+de3f2d8e.ppc64le                            python2-pip-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                                        
  python2-pip-wheel-9.0.3-14.module+el8.1.0+3446+c3d52da3.noarch                             python2-psycopg2-2.7.5-7.module+el8.1.0+3111+de3f2d8e.ppc64le                                   
  python2-pytz-2017.2-12.module+el8.1.0+3111+de3f2d8e.noarch                                 python2-pyyaml-3.12-16.module+el8.1.0+3111+de3f2d8e.ppc64le                                     
  python2-setuptools-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                           python2-setuptools-wheel-39.0.1-11.module+el8.1.0+3446+c3d52da3.noarch                          
  python2-six-1.11.0-5.module+el8.1.0+3111+de3f2d8e.noarch                                   python2-sqlalchemy-1.3.2-1.module+el8.1.0+2994+98e054d6.ppc64le                                 

Complete!
besawn commented 4 years ago

I thought this looked promising: https://rpm.org/user_doc/boolean_dependencies.html

So I tried to build a package on RHEL8.1 with the following Requires: (intended to find python-psycopg2 on RHEL7.X and find python2-psycopg2 on RHEL8.X)

Requires: (python-psycopg2 or python2-psycopg2)

Installation succeeded on RHEL8.1, but fails on RHEL7.6:

[root@fs2vm100 xcat-inventory]# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.6 (Maipo)

[root@fs2vm100 xcat-inventory]# yum install /tmp/xcat-inventory-0.1.6-c63.noarch.rpm 
Loaded plugins: product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Examining /tmp/xcat-inventory-0.1.6-c63.noarch.rpm: 1:xcat-inventory-0.1.6-c63.noarch
Marking /tmp/xcat-inventory-0.1.6-c63.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package xcat-inventory.noarch 1:0.1.6-c63 will be installed
Error: Invalid version flag: or

[root@fs2vm100 xcat-inventory]# rpm --version
RPM version 4.11.3

The problem appears to be that support for boolean dependencies was added with rpm version 4.13, but RHEL7.6 ships with version 4.11.3. Back to the drawing board...

peterwywong commented 4 years ago

I agree that "yum install" should be used and more convenient since it resolves dependencies too.

I think one point in my Question (1) is that "yum install" or "rpm -i" does not complain about MySQL-python, a Python package, which is not an RPM. In fact, there is no such RPM available with the name MySQL-python. The corresponding RPM is python2-PyMySQL.

Indeed, if we change the name from MySQL-python to python2-PyMySQL, yum should be able to find and install it.

Again, I wonder why there is no complaint when MySQL-python is specified in Requires on the python2 node. It seems to say Python packages are recognized too, but it does not seem to be.

besawn commented 4 years ago

Both MySQL-python and python2-PyMySql are valid rpms on RHEL7.6. I think during my experiments I accidentally switched to looking for python2-PyMySql, but I suspect MySQL-python is the correct dependency. 

[root@fs2vm100 xcat-inventory]# yum -q list MySQL-python
Installed Packages
MySQL-python.ppc64le                                            1.2.5-1.el7                                             @local-rhels7.6-ppc64le--install-REPO-os-rhels-7.6-rhels7.6-ga-ppc64le

[root@fs2vm100 xcat-inventory]# yum -q list python2-PyMySql
Installed Packages
python2-PyMySQL.noarch                                                                            0.9.2-3.el7                                                                            @epel
Obihoernchen commented 4 years ago

Can't we just use Dist Tags for this in the spec file? https://docs.fedoraproject.org/en-US/packaging-guidelines/DistTag/#_conditionals