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--- lab:fah_installation [2023/04/30 01:34] – improved user
+++ lab:fah_installation [2023/05/01 19:49] (current) – replaced user
@@ Line 1: / Line 1: @@
-====== FAH Installation ======
-In our previous step we [[stack_-_ansible_-_cmos|checked the health of CMOS batteries]] on our [[Stack of NUCs]].
-Now we are going to create and run an Ansible playbook to set up [[https://foldingathome.org/|Folding at Home (FAH)]] on the nodes. I have updated the playbook by ajacocks to add the current release and hack up a quick fix.
-Please note that the NUCs in am using this lab have only 4 cores, and for some WU's (work units) the client will only use 3 core. So don't expected to be scoring many points with these small boxes.
-Purpose:
-  * Demonstrate a running a complex workload of a service combined with configuration files
-References
-  * [[https://github.com/ajacocks/fah]]
-====== Step 1 - Install the fahcontrol app on NUC 1 ======
-The official download [[https://foldingathome.org/alternative-downloads/?lng=en|here]] does not work with Ubuntu 22.04. Use [[https://github.com/cdberkstresser/fah-control]].
-  - Open a shell on [[stack - nuc 1|NUC 1]]
-  - Install packages
-    * ''sudo apt-get install -y python3-stdeb python3-gi python3-all python3-six debhelper dh-python gir1.2-gtk-3.0''
-      * ''git clone https://github.com/cdberkstresser/fah-control.git''
-      * ''cd fah-control''
-      * ''./FAHControl''
-====== Step 2 - Install the the FAH client using Ansible ======
-From [[Stack - NUC 1|NUC 1]], log in to the Ansible control node, [[Stack - NUC 2|NUC 2]].
-  - Change directory to /home/ansible/my-project
-  - ''git clone --branch ubuntu-22.040-lts https://github.com/doritoes/fah.git''
-  - Change directory to /home/ansible/my-project/fah
-  - Modify file /home/ansible/my-project/fah/inventory
-    * copy your ansible node IPs from the file /home/ansible/my-project/hosts to the [clients] section
-    * chost='IP of Control Node'
-    * cpass='control-node-password'
-    * username='(Yourname @ folding@home)'
-    * passkey='(redacted passkey from folding@home)'
-  - ''ansible-playbook main.yml''
-    * if you encounter a DNS lookup failure on some or all nodes
-      * your wireless router should be setting DNS information as part of DHCP
-      * running dhclient might help: ''ansible -i hosts all -a dhclient''
-    * if you cannot connect with the control app and/or you see an error regarding a locked database
-      * reboot the node to clear the error
-      * it seems running the playbook on an already configured system and run multiple copies of FAH and cause the problem; rebooting solves the issue
-  - On [[NUC 1]], open the FAH control program
-    * Add clients one at a time in FAHControl
-      * Any name you want
-      * IP address of the client
-      * Control password you used configuring FAH
-Congratulations! Your [[Stack of NUCs]] is now fully occupied running a valuable workload! Next up is [[FAH Removal]], where we disable FAH and potentially remove it.
-====== Optional ======
-===== Check FAH Service Status =====
-<file yaml checkfahstatus.yml>
----
-- hosts: clients
-  become: true
-  become_user: root
-  tasks:
-    - name: Get FAH service Status
-      ansible.builtin.systemd:
-        state: "started"
-        name: "FAHClient"
-      register: fah_service_status
-    - name: Show status
-      debug:
-        msg: "{{ fah_service_status.status.ActiveState }}"
-</file>
-''ansible-playbook checkfahstatus.yml''
-Check points per day and queue information:
-  * ''ansible -i ../hosts all -a "FAHClient --send-command ppd"''
-  * ''ansible -i ../hosts all -a "FAHClient --send-command queue-info"''
-Tell all nodes to finish their work unit then pause:
-  * ''ansible -i ../hosts all -a "FAHClient --send-command finish"''
-===== Check Temperature =====
-In this example we will look into monitoring the CPU and chipset temperature of our NUCs.
-Install lm-sensors
-  * Option 1 - Ad Hoc
-    * ''ansible -i hosts all -m apt -a "name=lm-tools state=present"''
-  * Option 2 - Playbook in /home/ansible/my-project/fah/lm-sensors.yml
-    * <file yaml lm-sensors.yml>
----
-- name: lm-sensors install
-  hosts: clients
-  remote_user: ansible
-  become: true
-  tasks:
-    - name: Install lm-sensors
-      apt:
-        name: lm-sensors
-        update_cache: true
-    - name: Detect sensors
-      ansible.builtin.command: sensors-detect --auto
-</file>
-    * ''ansible-playbook lm-sensors.yml''
-    * ''ansible -i ../hosts all -a sensors''
-    * See [[https://github.com/aisbergg/ansible-role-lm-sensors|this link]] for more information on using this sensors information with Ansible.