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Improve template macros for grub command line #10989

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merged 4 commits into from
Aug 21, 2023
Merged

Improve template macros for grub command line #10989

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0bf1509
Improve template macros for grub command line
teacup-on-rockingchair Aug 14, 2023
fe93d87
Drop trailing whitespaces
teacup-on-rockingchair Aug 14, 2023
42410fd
Add tests to cover cases of missing/commented GRUB_CMDLINE_LINUX cfg
teacup-on-rockingchair Aug 14, 2023
a2d4a97
Fix platform limitation for all sle and error in shebang
teacup-on-rockingchair Aug 17, 2023
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5 changes: 5 additions & 0 deletions ...isabling_ipv6/grub2_ipv6_disable_argument/tests/cmd_line_commented_etcdefaultgrub.fail.sh
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@@ -0,0 +1,5 @@
#!/bin/bash
# platform = Red Hat Enterprise Linux 7,multi_platform_sle

# Comments kernel command line in /etc/default/grub
sed -i '/^\s*GRUB_CMDLINE_LINUX=/s//#&/' '/etc/default/grub'
5 changes: 5 additions & 0 deletions ...isabling_ipv6/grub2_ipv6_disable_argument/tests/cmd_line_not_there_etcdefaultgrub.fail.sh
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@@ -0,0 +1,5 @@
#!/bin/bash
# platform = Red Hat Enterprise Linux 7,multi_platform_sle

# Removes kernel command line in /etc/default/grub
sed -i '/^\s*GRUB_CMDLINE_LINUX=/d' '/etc/default/grub'
23 changes: 19 additions & 4 deletions shared/macros/10-ansible.jinja
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Expand Up @@ -1184,23 +1184,38 @@ Part of the grub2_bootloader_argument template.
{{%- macro ansible_grub2_bootloader_argument(arg_name, arg_name_value) -%}}
{{% if 'ubuntu' in product or product in ['rhel7', 'ol7', 'sle12', 'sle15'] %}}
- name: Check {{{ arg_name }}} argument exists
command: grep 'GRUB_CMDLINE_LINUX.*{{{ arg_name }}}=' /etc/default/grub
command: grep '^\s*GRUB_CMDLINE_LINUX=.*{{{ arg_name }}}=' /etc/default/grub
failed_when: False
register: argcheck

- name: Check {{{ arg_name }}} argument exists
command: grep '^\s*GRUB_CMDLINE_LINUX=' /etc/default/grub
failed_when: False
register: linecheck

- name: Add watch rule for {{{ path }}} in /etc/audit/audit.rules
ansible.builtin.lineinfile:
line: 'GRUB_CMDLINE_LINUX="{{{ arg_name_value }}} "'
state: present
dest: /etc/default/grub
create: yes
mode: '0644'
when: argcheck.rc != 0 and linecheck.rc != 0

- name: Replace existing {{{ arg_name }}} argument
replace:
path: /etc/default/grub
regexp: '{{{ arg_name }}}=\w+'
replace: '{{{ arg_name_value }}}'
when: argcheck.rc == 0
when: argcheck.rc == 0 and linecheck.rc == 0

- name: Add {{{ arg_name }}} argument
replace:
path: /etc/default/grub
regexp: '(GRUB_CMDLINE_LINUX=.*)"'
regexp: '(^\s*GRUB_CMDLINE_LINUX=.*)"'
replace: '\1 {{{ arg_name_value }}}"'
when: argcheck.rc != 0
when: argcheck.rc != 0 and linecheck.rc == 0

{{% endif -%}}

{{% if product in ['sle12', 'sle15'] %}}
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12 changes: 8 additions & 4 deletions shared/macros/10-bash.jinja
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Expand Up @@ -1998,12 +1998,16 @@ fi
#}}
{{%- macro update_etc_default_grub_manually(arg_name, arg_name_value) -%}}
# Correct the form of default kernel command line in GRUB
if grep -q '^GRUB_CMDLINE_LINUX=.*{{{ arg_name }}}=.*"' '/etc/default/grub' ; then
if grep -q '^\s*GRUB_CMDLINE_LINUX=.*{{{ arg_name }}}=.*"' '/etc/default/grub' ; then
# modify the GRUB command-line if an {{{ arg_name }}}= arg already exists
sed -i "s/\(^GRUB_CMDLINE_LINUX=\".*\){{{ arg_name }}}=[^[:space:]]\+\(.*\"\)/\1{{{ arg_name_value }}}\2/" '/etc/default/grub'
else
sed -i "s/\(^\s*GRUB_CMDLINE_LINUX=\".*\){{{ arg_name }}}=[^[:space:]]\+\(.*\"\)/\1{{{ arg_name_value }}}\2/" '/etc/default/grub'
# Add to already existing GRUB_CMDLINE_LINUX parameters
elif grep -q '^\s*GRUB_CMDLINE_LINUX=' '/etc/default/grub' ; then
# no {{{ arg_name }}}=arg is present, append it
sed -i "s/\(^GRUB_CMDLINE_LINUX=\".*\)\"/\1 {{{ arg_name_value }}}\"/" '/etc/default/grub'
sed -i "s/\(^\s*GRUB_CMDLINE_LINUX=\".*\)\"/\1 {{{ arg_name_value }}}\"/" '/etc/default/grub'
# Add GRUB_CMDLINE_LINUX parameters line
else
echo "GRUB_CMDLINE_LINUX=\"{{{ arg_name_value }}}\"" >> '/etc/default/grub'
fi
{{%- endmacro %}}

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