(In reply to Michal Wasilewski from comment #0)
> Created attachment 1233478 [details]
> yum.log which contains info about packages installed as a result of the
> group installation
> 
> Description of problem:
> during installation of 'Directory Client' yum group, a line is added to
> krb5.conf file which stops augeas from working normally with /etc/krb5.conf
> 
> Version-Release number of selected component (if applicable):
> augeas-1.4.0-2.el7
> 
> How reproducible:
> 
> Steps to Reproduce:
> 1.augtool
> 2. print /files/etc/krb5.conf  <- this time will work
> 3. yum groupinstall 'Directory Client'   <- adds line to krb5.conf

Do you mean that after this installation, there will a line added to krb5.conf？
includedir /etc/krb5.conf.d/

Or which  repo did you use？ I can't execute it sucessfully.

> 4.augtool
> 5.print /files/etc/krb5.conf  <- won't work
> 
> Actual results:
> augeas can no longer work with the file
> 
> Expected results:
> augeas should be able to process the includedir line
> 
> Additional info:
> removing includedir from krb5.conf fixes the problem, augeas can process the
> file
> 
> attached is a log file from the yum groupinstall

Can reproduce it with：
augeas-1.4.0-2.el7.x86_64

Steps:
1. Add this line to /etc/krb5.conf：
includedir /etc/krb5.conf.d/

2. augtool
augtool> print /files/etc/krb5.conf
augtool> print /augeas/files/etc/krb5.conf
/augeas/files/etc/krb5.conf
/augeas/files/etc/krb5.conf/path = "/files/etc/krb5.conf"
/augeas/files/etc/krb5.conf/mtime = "1482303488"
/augeas/files/etc/krb5.conf/lens = "@Krb5"
/augeas/files/etc/krb5.conf/lens/info = "/usr/share/augeas/lenses/dist/krb5.aug:154.10-156.66:"
/augeas/files/etc/krb5.conf/error = "parse_failed"
/augeas/files/etc/krb5.conf/error/pos = "188"
/augeas/files/etc/krb5.conf/error/line = "6"
/augeas/files/etc/krb5.conf/error/char = "0"
/augeas/files/etc/krb5.conf/error/lens = "/usr/share/augeas/lenses/dist/krb5.aug:154.10-156.66:"
/augeas/files/etc/krb5.conf/error/message = "Get did not match entire input"

*** Bug 1408526 has been marked as a duplicate of this bug. ***

yes, installing "Directory Client" group resulted in that line being added to krb5.conf

I did some more debugging and narrowed it down to the following update:
Updating: krb5-libs-1.14.1-27.el7_3.x86_64
Cleanup: krb5-libs-1.13.2-12.el7_2.x86_64

I submitted a pull request to the upstream project on github that was merged last month:

https://github.com/hercules-team/augeas/pull/431

So this should be fixed in the next version. Until that is released, maybe RedHat can update the augeas rpm in RHEL7 to include this patch.

Verified with packages:
augeas-1.4.0-4.el7.x86_64
krb5-libs-1.15.1-8.el7.x86_64

Steps:

1. #augtool
augtool> print /files/etc/krb5.conf
----------------------------------------------------
/files/etc/krb5.conf
/files/etc/krb5.conf/#comment = "Configuration snippets may be placed in this directory as well"
/files/etc/krb5.conf/includedir = "/etc/krb5.conf.d/"
/files/etc/krb5.conf/logging
/files/etc/krb5.conf/logging/default
/files/etc/krb5.conf/logging/default/file = "/var/log/krb5libs.log"
/files/etc/krb5.conf/logging/kdc
/files/etc/krb5.conf/logging/kdc/file = "/var/log/krb5kdc.log"
/files/etc/krb5.conf/logging/admin_server
/files/etc/krb5.conf/logging/admin_server/file = "/var/log/kadmind.log"
/files/etc/krb5.conf/libdefaults
/files/etc/krb5.conf/libdefaults/dns_lookup_realm = "false"
/files/etc/krb5.conf/libdefaults/ticket_lifetime = "24h"
/files/etc/krb5.conf/libdefaults/renew_lifetime = "7d"
/files/etc/krb5.conf/libdefaults/forwardable = "true"
/files/etc/krb5.conf/libdefaults/rdns = "false"
/files/etc/krb5.conf/libdefaults/#comment = "default_realm = EXAMPLE.COM"
/files/etc/krb5.conf/libdefaults/default_ccache_name = "KEYRING:persistent:%{uid}"
/files/etc/krb5.conf/realms
/files/etc/krb5.conf/realms/#comment[1] = "EXAMPLE.COM = {"
/files/etc/krb5.conf/realms/#comment[2] = "kdc = kerberos.example.com"
/files/etc/krb5.conf/realms/#comment[3] = "admin_server = kerberos.example.com"
/files/etc/krb5.conf/realms/#comment[4] = "}"
/files/etc/krb5.conf/domain_realm
/files/etc/krb5.conf/domain_realm/#comment[1] = ".example.com = EXAMPLE.COM"
/files/etc/krb5.conf/domain_realm/#comment[2] = "example.com = EXAMPLE.COM"
----------------------------------------------------
Augeas can parse /etc/krb5.conf which contains "includedir /etc/krb5.conf.d/" line. So verified it.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0684