jdk

---
- name: Replace Idle JDK
  hosts: all
  gather_facts: false
  vars:
    jdk_download_url: ""
    
  tasks:
    - name: Check running Java processes
      command: ps -ef | grep java | grep -v grep
      register: java_processes
      changed_when: false

    - name: Gather JDK paths from running processes
      set_fact:
        running_jdk_paths: "{{ java_processes.stdout_lines | map('regex_replace', '^.*?(/.*?/bin/java).*$', '\\1') | list }}"

    - name: Find all JDK installations
      find:
        paths: /path/to/jdk
        patterns: 'jdk*'
      register: jdk_installations

    - name: Filter out idle JDKs
      set_fact:
        idle_jdk_paths: "{{ jdk_installations.files | selectattr('path', 'not in', running_jdk_paths) | map(attribute='path') | list }}"

    - name: Check if all JDKs are in use
      fail:
        msg: "All JDKs are in use. No idle JDKs found."
      when: idle_jdk_paths | length == 0

    - name: Display idle JDK paths
      debug:
        msg: "Idle JDK paths: {{ idle_jdk_paths }}"

    - name: Prompt for JDK download URL
      pause:
        prompt: "Please enter the JDK download URL"
      register: download_url_input

    - name: Set download URL
      set_fact:
        jdk_download_url: "{{ download_url_input.user_input }}"

    - name: Download JDK
      get_url:
        url: "{{ jdk_download_url }}"
        dest: /tmp/jdk_download.tar.gz

    - name: Unarchive JDK
      unarchive:
        src: /tmp/jdk_download.tar.gz
        dest: /path/to/jdk/
        remote_src: yes

    - name: Replace idle JDK
      command: mv /path/to/jdk/idle_jdk /path/to/jdk/old_jdk
      when: idle_jdk_paths | length > 0

    - name: Notify user
      debug:
        msg: "Idle JDK replaced with the downloaded JDK."