dnf/yum shows "Modular dependency problems - nothing provides module(perl:5.26) needed by module freeradius:3.0" on new deployment

Environment

• Red Hat Enterprise Linux 8
• Red Hat Satellite 6.7+
• Red Hat Enterprise Linux 8 Content View with yum repository filters in place

Issue

• yum/dnf commands show Modular Dependency Problems

Modular dependency problems:

Problem 1: module perl:5.30:8030020200609055348:568f3a16-0.x86_64 conflicts with module(perl:5.26) provided by perl:5.26:820181219174508:9edba152-0.x86_64

• module perl:5.26:820181219174508:9edba152-0.x86_64 conflicts with module(perl:5.30) provided by perl:5.30:8030020200609055348:568f3a16-0.x86_64
• module perl-App-cpanminus:1.7044:820181214184336:3a33b840-0.x86_64 requires module(perl:5.30), but none of the providers can be installed
• conflicting requests
  Problem 2: module perl:5.30:8030020200609055348:568f3a16-0.x86_64 conflicts with module(perl:5.26) provided by perl:5.26:820181219174508:9edba152-0.x86_64
• module perl:5.26:820181219174508:9edba152-0.x86_64 conflicts with module(perl:5.30) provided by perl:5.30:8030020200609055348:568f3a16-0.x86_64
• module perl-DBD-MySQL:4.046:820181214121012:caf6787c-0.x86_64 requires module(perl:5.30), but none of the providers can be installed
• module freeradius:3.0:8010020190614154208:16b3ab4d-0.x86_64 requires module(perl:5.26), but none of the providers can be installed
• conflicting requests

Resolution

Ensure that a yum repository filter is created that has:

• content type of Module Streams
• include type of Include
• select Include all Module Streams with no errata
  

Or with hammer commandline:

hammer content-view filter create [...] --original-module-streams yes

Root Cause

When filtering content views containing Red Hat Enterprise Linux 8 content, the filter list should contain both a filter including all packages with no errata and a filter including all module streams with no errata. This is different than Red Hat Enterprise Linux 7 content view filter where module streams were not present. Creating a content view without the include all module streams with no errata will result in a content view that contains only module streams that have errata or are explicitly included by other filters. This can potentially result in a content view with dependent module streams missing.

Diagnostic Steps

Review the filter configuration for all content views including Red Hat Enterprise Linux 8 repositories.

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