13-step-13.nutsh

lesson_name("Using roles from Ansible Galaxy - Install a Jenkins server")
make_and_go_ws
clear_ws
run(`cp -r /tutorials/files/step-13/* .`)

"Ansible Galaxy ( `http://docs.ansible.com/ansible/latest/galaxy.html` ) refers to the Galaxy website where users can share roles, and to a command line tool for installing, creating and managing roles."

"In this lesson, we are going to use a role from Ansible Galaxy to install Jenkins on one of our nodes."

"You can browse available roles here: `https://galaxy.ansible.com/list#/roles`"

"Run the following command to install the required role"

"*ansible-galaxy install geerlingguy.jenkins*"

prompt {
    if success && command == "ansible-galaxy install geerlingguy.jenkins" {
        expect ("ansible-galaxy install geerlingguy.jenkins")
        "" 
        "OK!" 
        break
    }
}

"Let's continue with an inventory file. We will install on `host0.example.org`"

"Check the inventory file I've prepared for you, by running:"

"*cat hosts*"

prompt {
    if success && command == "cat hosts" {
        expect ("cat hosts")
        ""
        "See? We created a new group named `jenkins`. This is not mandatory but a good practice."   
        break
    }
}

"Now we need a playbook and we will use the one provided as example in github repo of the role: `https://github.com/geerlingguy/ansible-role-jenkins#example-playbook`"

"Inspect our playbook, by running:"

"*cat jenkins.yaml*"

prompt {
    if success && command == "cat jenkins.yaml" {
        expect ("cat jenkins.yaml")
        ""

        "The playbook includes another role which installs `java` (a prerequisite for jenkins). This role has already been installed with our first `ansible-galaxy install ...` command as `geerlingguy.jenkins` has a dependency on `geerlingguy.java`."

        "That's it, we are ready to go!"  
         
        break
    }
}

"Run the following command to run the playbook:"

"*ansible-playbook -i hosts jenkins.yaml*"

prompt {
    if success && command == "ansible-playbook -i hosts jenkins.yaml" {
        expect ("ansible-playbook -i hosts jenkins.yaml")
        "" 
        
        "Perfect!"

        say("Now go to `http://127.0.0.1:" + run (`echo $(($HOSTPORT_BASE+3))`) + "` and see the result!")

        say("You can login with `admin/admin` :)")
        
        say("! Remember our hosts are docker containers and `port 8080 of host0.example.org` is exposed to `port " +  run (`echo $(($HOSTPORT_BASE+3))`) + " of your local machine`") 

        break
    }
}


"This is the end of this lesson!"

"Please press the \"`Enter`\" key to continue!"
prompt {
    if command == "" {
        expect (" ")
        break
    }
}