ansible-lineinfile-examples.yml

## credit: http://fabian-affolter.ch/blog/the-lineinfile-module-of-ansible/
--- 
- hosts: alpine_install
  user: root
 
  tasks:
#  - name: create a complete empty file
#    command: /usr/bin/touch /test/test.conf
 
  - name: create a new file with lineinfile
    lineinfile: dest=/test/test.conf 
                regexp='^' line=''
                state=present
                create=True
                 
  - name: add a string to the new file
    lineinfile: dest=/test/test.conf
                regexp='^'
                line='Hello, World!'
                state=present
 
  - name: add a multiline string to the file and delete the string from before
  # Be aware, with the given regex the string will be added everytime the playbook runs 
    lineinfile: dest=/test/test.conf 
                regexp='^'
                line='#This is a comment\n#Another comment\n#Another comment, again\n#Again a comment\n#The last comment'
                state=present
 
  - name: add a single line, in this case the same as the comment but uncommented
    lineinfile: dest=/test/test.conf 
                regexp='^Another'
                insertafter='^#Another'
                line='Another comment, no longer a comment'
                state=present
 
  - name: remove the line '#Again a comment'
    lineinfile: dest=/test/test.conf 
                regexp='^#Again'
                state=absent
 
  - name: add a new string at the beginning of the file
    lineinfile: dest=/test/test.conf
                regexp='^This'
                insertbefore=BOF
                line='This is no longer a comment'
 
  - name: add a new string before the match
    lineinfile: dest=/test/test.conf 
                regexp='^Another'
                insertbefore='^#Another'
                line='Another comment, no longer'
 
  - name: add a new string at the end of the file
    lineinfile: dest=/test/test.conf 
                regexp=''
                insertafter=EOF
                line='The latest entry'

Hello!

I have a code

Component "{{ .Env.XMPP_INTERNAL_MUC_DOMAIN }}" "muc"
    storage = "memory"
    modules_enabled = {
        "ping";
        {{ if .Env.XMPP_INTERNAL_MUC_MODULES }}
        "{{ join "\";\n\"" (splitList "," .Env.XMPP_INTERNAL_MUC_MODULES) }}";
        {{ end }}
    }
    muc_room_locking = false
    muc_room_default_public_jids = true

Component "{{ .Env.XMPP_MUC_DOMAIN }}" "muc"
    storage = "memory"
    modules_enabled = {
        "muc_meeting_id";
        {{ if .Env.XMPP_MUC_MODULES }}
        "{{ join "\";\n\"" (splitList "," .Env.XMPP_MUC_MODULES) }}";
        {{ end }}
        {{ if and $ENABLE_AUTH (eq $AUTH_TYPE "jwt") }}
        "{{ $JWT_TOKEN_AUTH_MODULE }}";
        {{ end }}
    }
    muc_room_cache_size = 1000
    muc_room_locking = false
    muc_room_default_public_jids = true

Component "focus.{{ .Env.XMPP_DOMAIN }}" "client_proxy"
    target_address = "{{ .Env.JICOFO_AUTH_USER }}@{{ .Env.XMPP_AUTH_DOMAIN }}"

Component "speakerstats.{{ .Env.XMPP_DOMAIN }}" "speakerstats_component"
    muc_component = "{{ .Env.XMPP_MUC_DOMAIN }}"

Component "conferenceduration.{{ .Env.XMPP_DOMAIN }}" "conference_duration_component"
    muc_component = "{{ .Env.XMPP_MUC_DOMAIN }}"

{{ if $ENABLE_LOBBY }}
Component "lobby.{{ .Env.XMPP_DOMAIN }}" "muc"
    storage = "memory"
    restrict_room_creation = true
    muc_room_locking = false
    muc_room_default_public_jids = true
{{ end }}

In the file I have 3 of the same line with name **muc_room_default_public_jids = true** . How I can add new line "muc_restrict_executable = "/config/data/custom_prosody_plugins/mod_muc_restrict_rooms_exec.sh", in this block

    muc_room_cache_size = 1000
    muc_room_locking = false
    muc_room_default_public_jids = true

after "muc_room_default_public_jids = true"

I used this code:

    - name: Add new line after muc_room_default_public_jids = true' in file "jitsi-meet.cfg.lua"
      lineinfile:
        path: /home/docker-jitsi-meet/prosody/rootfs/defaults/conf.d/jitsi-meet.cfg.lua
        insertafter: "muc_room_default_public_jids ="
        line: "muc_restrict_executable = "/config/data/custom_prosody_plugins/mod_muc_restrict_rooms_exec.sh"
        state: present  
      register: lineinfileexample

But this code insert new line after 1 (first) match :(

Command firstmatch: yes does not work, because I need a second line with this name.