adhoc-remove-mirror-stream-role.yml

---
# This ad-hoc playbook can be used to "revert" the ansible-mirror role that would fetch by default stream9 content
# Some sponsored mirrors don't have enough space for both, so we'll just remove the Stream 9 content (that is huge as it contains also src and debuginfo packages
# Before launching this playbook you'd need to ensure that mirror_stream_content is set to `False` in ansible inventory (and pushed) : we don't want to have automated ansible replay the settings the other way around
#

- hosts: "{{ mirror_host }}"
  become: true
  strategy: linear
  gather_facts: false
  vars_prompt:
    - name: "mirror_host"
      prompt: "[WARNING] Nodes to remove from mirror.stream.centos.org pool => "
      private: no
  handlers:
    - import_tasks: handlers/main.yml


  tasks:
    - assert:
        that:
          - not mirror_stream_content
        fail_msg: "{{ mirror_host }} seems to inherit mirror_stream_content boolean to True !"

    - block:
        - name: Updating PDNS GeoIP backend to remove stream roles
          shell:
            cmd: echo "update nodes set \"{{ item }}\"='false' where fqdn='{{ mirror_host }}';" |sqlite3 nodes.db
            chdir: /var/lib/centos-infra/
          with_items:
            - mirror.stream
            - rsync.stream
          delegate_to: "{{ pdns_db_host }}"

        - name: Regenerating .json backend for powerdns infra
          shell:
            cmd: ./gen_backend 
            chdir: /var/lib/centos-infra
          delegate_to: "{{ pdns_db_host }}"
  
        - name: Reloading directly powerdns zone on pdns nodes
          command:
            cmd: /var/lib/centos-pdns/backend_download
          delegate_to: "{{ item }}"  
          with_items: "{{ groups['pdns-nodes'] }}"
          tags:
            - pdns

        - name: Ensuring we don't actually try to fetch Stream content
          become_user: centos
          shell:
            cmd: pkill -9 rsync ; /bin/true
          tags:
            - centos

        - name: Cron job to rsync Stream 9 content from upstream node
          cron:
            name: "CentOS mirror.stream rsync job"
            job: "/home/{{ mirror_local_user }}-scripts/rsync-stream-full {{ mirror_rsync_from }} > /dev/null 2>&1"
            minute: "*/7"
            user: "{{ mirror_local_user }}"
            state: absent
          tags:
            - cron
        - name: Cleaning up some files coming from role (not needed anymore)
          file:
            path: "{{ item }}"
            state: absent
          with_items:
            - /etc/httpd/conf.d/11_mirror_stream.conf
            - /etc/rsyncd.d/02_CentOS-Stream.conf
            - /etc/rsyncd.d/03_centosstream.conf
          notify:
            - reload_httpd
            - rebuild_rsyncd

        - name: Reloading rsync/httpd if needed
          meta: flush_handlers

        - name: Removing stream content
          file:
            path: /home/centos-stream
            state: absent
          register: stream_content  
          tags:
            - cleanup

        - name: Reporting zabbix value
          shell: zabbix_sender -c /etc/zabbix/zabbix_agentd.conf -k msync.stream.diff -o 5
          when: stream_content is changed
          tags:
            - cleanup