Created Development Branch 12/21/2018

HOW TO CHANGE GIT BRANCH

Use the checkout command to switch branch.

$ git checkout Switch to the branch "issue1" by doing the following.

$ git checkout issue1 Switched to branch 'issue1'

My Notes:

/* Ansible Folder Structure

production # inventory file for production servers staging # inventory file for staging environment

group_vars/ group1.yml # here we assign variables to particular groups group2.yml host_vars/ hostname1.yml # here we assign variables to particular systems hostname2.yml

library/ # if any custom modules, put them here (optional) module_utils/ # if any custom module_utils to support modules, put them here (optional) filter_plugins/ # if any custom filter plugins, put them here (optional)

site.yml # master playbook webservers.yml # playbook for webserver tier dbservers.yml # playbook for dbserver tier

roles/ common/ # this hierarchy represents a "role" tasks/ # main.yml # <-- tasks file can include smaller files if warranted handlers/ # main.yml # <-- handlers file templates/ # <-- files for use with the template resource ntp.conf.j2 # <------- templates end in .j2 files/ # bar.txt # <-- files for use with the copy resource foo.sh # <-- script files for use with the script resource vars/ # main.yml # <-- variables associated with this role defaults/ # main.yml # <-- default lower priority variables for this role meta/ # main.yml # <-- role dependencies library/ # roles can also include custom modules module_utils/ # roles can also include custom module_utils lookup_plugins/ # or other types of plugins, like lookup in this case

webtier/              # same kind of structure as "common" was above, done for the webtier role
monitoring/           # ""
fooapp/               # ""

"msg": "to use the 'ssh' connection type with passwords, you must install the sshpass program"

sudo apt-get install sshpass -y

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Hosts file

[pi-cluster] 192.168.1.13[4:7]

[master] flagship ansible_host=192.168.1.134

[nodes] ship1 ansible_host=192.168.1.135 ship2 ansible_host=192.168.1.136 ship3 ansible_host=192.168.1.137

[pi-cluster:vars] ansible_ssh_user=pi ansible_ssh_pass=raspberry deploy_target=pi kubernetes_apiserver_advertise_address=192.168.1.134 ansible_ssh_common_args='-o StrictHostKeyChecking=no'

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ansible all -i hosts -m ping

pi@raspberrypi:~ $ ansible all -i hosts -m ping flagship | SUCCESS => { "changed": false, "ping": "pong" } ship3 | SUCCESS => { "changed": false, "ping": "pong" } ship1 | SUCCESS => { "changed": false, "ping": "pong" } ship2 | SUCCESS => { "changed": false, "ping": "pong" } pi@raspberrypi:~ $ ansible master -i hosts -m ping flagship | SUCCESS => { "changed": false, "ping": "pong" } ################################################################################# #################################################################################

ansible all -i hosts -a "apt-get update" -s

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pi@raspberrypi:~ $ ansible-playbook -i hosts test-cluster.yml

PLAY [Test my raspberry cluster] ***********************************************

TASK [setup] ******************************************************************* ok: [192.168.1.137] ok: [192.168.1.136] ok: [192.168.1.135] ok: [192.168.1.134]

TASK [Check Rasp model] ******************************************************** changed: [192.168.1.134] changed: [192.168.1.136] changed: [192.168.1.135] changed: [192.168.1.137]

TASK [Debug each entry of my hosts] ******************************************** ok: [192.168.1.136] => { "msg": "System 192.168.1.136 is a Raspberry Pi 3 Model B Plus Rev 1.3\u0000" } ok: [192.168.1.137] => { "msg": "System 192.168.1.137 is a Raspberry Pi 3 Model B Plus Rev 1.3\u0000" } ok: [192.168.1.135] => { "msg": "System 192.168.1.135 is a Raspberry Pi 3 Model B Plus Rev 1.3\u0000" } ok: [192.168.1.134] => { "msg": "System 192.168.1.134 is a Raspberry Pi 3 Model B Plus Rev 1.3\u0000" }

PLAY RECAP ********************************************************************* 192.168.1.134 : ok=3 changed=1 unreachable=0 failed=0 192.168.1.135 : ok=3 changed=1 unreachable=0 failed=0 192.168.1.136 : ok=3 changed=1 unreachable=0 failed=0 192.168.1.137 : ok=3 changed=1 unreachable=0 failed=0

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List All Hosts in the Inventory File A quick way to get a list of all the servers Ansible is aware of:

ansible -i hosts all --list-hosts

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TEST Bare Metal Deploy

Commands:

sudo apt-get install ansible git sshpass

ansible all -i hosts -m ping Error: WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! ### Error is native to running ansible commands on ansible host that has already run commands

export ANSIBLE_HOST_KEY_CHECKING=False

Still had Issues

Try ssh-keyscan 192.168.1.xxx >> ~/.ssh/known_hosts