ansible_getting_started.md

After you have installed ansible

apt update
apt install software-properties-common
add-apt-repository ppa:ansible/ansible
apt update
apt install ansible

and downloaded ansible playground with

git clone https://github.com/owncloud-ansible/playground
cd playground

and installed ansible collections

ansible-galaxy collection install community.mysql
ansible-galaxy collection install community.general
ansible-galaxy collection install ansible.posix

and installed the roles

ansible-galaxy install -r roles/requirements.yml

You have the setup locally. Congratulations. Now, let's say you have to do a deployment. How to proceed? First we have to make sure we can get to the server => keys.

Copy your public key over to the new server and enter it in to the .ssh/authorized_keys file

scp ~.ssh/id_rsa.pub username@server:~.ssh/owncloud_deployment_key.pub

cat owncloud_deployment_key.pub >> authorized_keys

Make sure to set the correct permissions

chmod 700 .ssh/
chmod 600 .ssh/*

Allright, now you can connect to your server you have to deploy with your keys. Great!

Now let's go to ansible and test our connections with the ping module

ansible -i playground/inventories/ubuntu-minimal/hosts owncloud -u username -m "ping"

Summery:

1. key authentication: chmod go-rwx ~/.ssh{,/authorized_keys}
2. sudo ohne password: visudo /etc/sudoers.d/ # add the following line: ALL=(ALL) NOPASSWD:ALL
3. ansible inventory is the hosts file: in there set [all:vars] ansible_host=<ip.ad.dre.ss>; ansible_user=; ansible_become=yes; ansible_become_user=root