/ansible

ansible

Ansible

1.what are all configuration management tools are available ? 2.what is ansible? why we choose ansible? 3.what is the purpose of ansible? 4.ansible vs chef ? 5.ansible architecture ? 6.ansible terminology ? 7.ansible installation on aws ec2 8.what is inventery file ? 9.what is ansible.conf file ? 10.what to divide the groups in inventory ? 11.add the nodes into ansible server? 12.run ping module to check whether nodes are connected or not ?

ansible

configuration management tool and deployment tool

salt stack , cf engine, chef , puppet, ansible (infrastructure as a code )

install sofwares, up-gradation os, deployment,provisioning server

ansible is fast processing developed trough python

yml

push mechanism

inbuilt ssh

ping modules

setup

shell command file user group copy git yum apt template inline docker

ansible nodes -m copy -a 'src=/etc/ansible/emexo.txt dest=/home/ec2-user/emexo.txt'

ansible nodes --private-key=tomcat.pem -m command -a 'pwd'

ansible nodes --private-key=tomcat.pem -m shell -a 'cat sample.txt| grep -i sample'

ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/emexo.txt mode=600' ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/emexo_create.txt state=touch mode=644' ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/emexo_create.txt state=absent'

nameofplaybook.yml

create file trough playbook

  • hosts: nodes tasks:
    • name: Ansible create file if it doesn't exist example file: path: "/home/ec2-user/devops.txt" state: touch

create_a_file.yml

ansible-playbook create_a_file.yml --private-key=tomcat.pem --syntax-check

  • hosts: nodes tasks:
    • name: Create file with content example copy: dest: "/home/ec2-user/devops.txt" content: | Madhu Sudhan Reddy Banglore DevOps Architech

ansible-playbook create_a_file_with_content.yml --private-key=tomcat.pem --syntax-check

create_a_multiple_files.yml

  • hosts: nodes tasks:
    • name: Ansible create multiple files example file: path: "/home/ec2-user/{{ item }}" state: touch mode: 0775 with_items:
      • access.log
      • systemd.log
      • properties.txt
      • conffile.conf

ansible-playbook create_a_multiple_files.yml -i /etc/ansible/hosts --private-key=tomcat.pem --syntax-check

  • hosts: all tasks:
    • name: Ansible create multiple files example file: path: "/home/ec2-user/{{ item.location }}" state: touch mode: "{{ item.mode }}" with_items:
      • { location: 'task5_file1.txt',mode: '0566'}
      • { location: 'task5_file2.txt',mode: '0766'}

ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/sample.txt mode=642'

create a directory

ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/jmstechhome mode=600 state=directory'

to create a file

ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/testfile mode=600 state=touch'

To remove a File

ansible nodes -m file --private-key=tomcat.pem -a 'dest=/home/ec2-user/testfile mode=600 state=absent'

ansible nodes -b -m yum --private-key=tomcat.pem -a 'name=httpd state=present'

ansible nodes -b -m service --private-key=tomcat.pem -a 'name=httpd state=started'

ping setup copy shell command file LineInFile yum service

ansible nodes --private-key=tomcat.pem -m lineinfile -a 'dest=/home/ec2-user/sample.txt line="This notes written by madhu sudhan reddy"'

ansible 172.31.8.26 -b -m yum --private-key=tomcat.pem -a 'name=git state=present'

ansible nodes -b -m service --private-key=tomcat.pem -a 'name=httpd state=started'

172.31.8.26

ansible modules

create a file writing content in file change permission to file create a directory create a multiple files at a time using ansible loops create a multiple files with different permissions using ansible loops delete a file real-time use-case example

agenda

write a playbook to install git

write a playbook to install maven

what is ansible roles

what is ansible-galaxy

how to create a role using anisble galaxy

write a playbook to install apache tomcat

deploy sample war file trough apache tomcat

git_install.yml

  • hosts: nodes become: yes gather_facts: False tasks:
    • name: Installing git yum: name: git state: present

ansible-playbook git_install.yml --syntax-check

ansible-playbook git_install.yml --private-key=tomcat.pem

ansible-playbook maven_install.yml --syntax-check

ansible-playbook maven_install.yml --private-key=tomcat.pem

ansible-playbook tomcat_setup.yml --syntax-check

ansible-playbook tomcat_setup.yml --private-key=/etc/ansible/tomcat.pem

https://github.com/ybmadhu/spring3-mvc-maven-xml-hello-world.git

ansible-playbook git_projects.yml --private-key=tomcat.pem ansible-playbook git_projects.yml --private-key=tomcat.pem --skip-tags git_download