Ansible Playbook
- Fact: This represents some information about a node Refer Here
- Ansible has a module called as
setup which can collect all the facts fo a node Refer Here
Gathering facts using setup module
- create a inventory file called as hosts
node-2
- lets execute this command
ansible -i hosts -m setup all
- you can also user regular expressions
ansible -i hosts -m setup -a "filter=*os*" all
Activity: Installing tomcat on ubuntu 22.04
sudo apt update
# install java 11
sudo apt install openjdk-11-jdk -y
- Refer Here for the changes in playbook
- Lets perform syntax check
ansible-playbook -i hosts ubuntu.yaml --syntax-check
- We can perform dry run i.e. approximately what happens when you execute playbook
ansible-playbook -i hosts ubuntu.yaml --check
ansible-playbook -i hosts ubuntu.yaml
- Now test by executing
java -version on the node
- Verbosity levels in ansible Refer Here
- Exercise: How many v’s can i add
- Creating a system user Refer Here
- Manual steps
sudo useradd -m -U -d /opt/tomcat -s /bin/false tomcat
- This is equivalent to
- create a group called tomcat
- create a user called as tomcat
- home directory
/opt/tomcat
- shell is
/bin/false
- Refer Here for the changes done to the playbook
- Downloading tomcat: Refer Here for manual steps
VERSION=10.1.25
wget https://www-eu.apache.org/dist/tomcat/tomcat-10/v${VERSION}/bin/apache-tomcat-${VERSION}.tar.gz -P /tmp
