run multiple sniffer.py at once on a single node device

ansible/tasks/playbook_scapy-sniffer_GPS.yml

 - hosts: sniffers
-  user: gta
   #become: yes
   #become_user: root
 
   vars_prompt:
 
-    # - name: _file
-    #   prompt: Enter the folder name to save traces in the sniffer
-    #   private: no
+    - name: _workdir
+      prompt: Enter the folder name to save traces in the sniffer
+      default: "/home/tribe/mitik-sens-mod/"
+      private: no
     # This will always be the mitik-sens-mod folder
 
     # - name: _location
@@ -57,19 +57,28 @@
     - set_fact:
         _interfaces: "{{ _interfaces_csv.split(',') }}"
         _channels: "{{ _channels_csv.split(',') }}"
+      delegate_to: 127.0.0.1
+      run_once: True
 
-    - name: Create Folder
-      file: 
-        path: "{{ _file }}"
-        owner: gta 
-        group: gta 
-        #mode: 0755 
-        state: directory
+    - name: Double-check input variables
+      assert:
+        that: "{{ _interfaces|length }} == _channels"
+      delegate_to: 127.0.0.1
+      run_once: True
 
-    - name: start scapy-sniffer
 
+    # - name: Create Folder
+    #   file:
+    #     path: "{{ _workdir }}"
+    #     owner: tribe
+    #     group: tribe
+    #     #mode: 0755
+    #     state: directory
+
+    - name: start scapy-sniffer
       cron:
-        name: "ansible_scapy-sniffer {{ _hour }} {{ _minute }} {{ _channel }}"
+        name: "ansible_scapy-sniffer {{ _hour }} {{ _minute }} {{ item }}"
         minute: "{{ _minute }}"
         hour: "{{ _hour }}"
-        job: "sudo python3 /home/gta/sniffers/scapy-sniffer/sniffer_GPS.py -F {{ _file }} -L {{ _location }} -i {{ _interface }} -c {{ _channel }} -f {{ _filter }} -e {{ _hash_function}} -p {{ _hash_pattern }} -t {{ _timeout }}"
+        job: "cd {{_workdir}}; sudo python ./sniffer.py -s {{_timeout}} -i {{item}} -c {{}} -sf {{_filter}} -p {{_hash_pattern}} -e {{_hash_function}}"
+      loop: "{{_interfaces}}"

config/test.yml

 # /etc/ansible/broadcast.yml
 ---
 - name: Echoed stuff
-  hosts: all
+  hosts: ss1
+
+
+  vars_prompt:
+
+    # - name: _file
+    #   prompt: Enter the folder name to save traces in the sniffer
+    #   private: no
+    # This will always be the mitik-sens-mod folder
+
+    # - name: _location
+    #   prompt: Enter the location of the experiments
+    #   private: no
+    # I don't know what this parameter is (was) for
+
+    # - name: _hour
+    #   prompt: Enter an hour to start the experiment
+    #   default: 17
+    #   private: no
+    #
+    # - name: _minute
+    #   prompt: Enter minutes to start the experiment
+    #   private: no
+
+    - name: _interfaces_csv
+      prompt: Please specify the interface(s) separated by commas (e.g. wlan0,wlan7). For default just press enter
+      default: 'wlan5,wlan6'
+      private: no
+
+    - name: _channels_csv
+      prompt: Please specify the starting channels (integer between 1-11 separated by commas, default=system). For default just press enter
+      default: "1,8"
+      private: no
+
 
   tasks:
-    - name: say things to tty1
-      ansible.builtin.shell: "cd ~;eval $(ssh-agent -s); ssh-add .ssh/gitlab_rsa ; git clone git@gitlab.inria.fr:gfarhiri/mitik-sens-mod.git"
+
+    - set_fact:
+        _interfaces: "{{ _interfaces_csv.split(',') }}"
+        _channels: "{{ _channels_csv.split(',') }}"
+      delegate_to: 127.0.0.1
+      run_once: True
+
+
+    - name: Double-check input variables
+      assert:
+        that: "{{ _interfaces|length }} == {{ _channels|length }}"
+      delegate_to: 127.0.0.1
+      run_once: True
+
+
+    - debug:
+        msg: "{{ item }}"
+      loop: "{{_interfaces}}"
+      delegate_to: 127.0.0.1
+      run_once: True
+
+    - debug:
+        msg: "{{ item }}"
+      loop: "{{_channels}}"
+      delegate_to: 127.0.0.1
+      run_once: True
+
+    - shell: "echo {{ item }} {{_channels[lp_idx]}} !! | sudo tee /dev/tty1 "
+      loop: "{{_interfaces}}"
+      loop_control:
+        index_var: lp_idx
+
+