Simple YAMl File syntax errors

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1

Hi ,

I have written a simple yaml file to install httpd package

2

Welcome Mallireddy.

Your yaml file is a _role_ and the playbook command requires a _playbook_ as well as an inventory file. You just need to add a playbook (lets call that site.yml) and include your role from above (web.yml).

I tweaked your role a little (use separate lines so that git diffs are easy to read, add a name for readability during playbook runs, and tags to allow targeting tasks easily) but its basically the same as what you already have. I keep all of this together in a single git repo, along with ansible.cfg and hosts inventory file.

Your ansible structure should look like this inside your ansible repo:

# ./site.yml:
---
- hosts: all
  roles:
    - web

# ./roles/web/tasks/main.yml:
--- 
- name: ensure web server is installed
  yum:
    name: httpd
    state: installed
  tags:
    - web
    - yum

I use the following a lot - what would the play change, and then actually apply it:

ansible-playbook site.yml --diff -v --check
ansible-playbook site.yml --diff -v

https://github.com/ansible/ansible-examples/tree/master/lamp_simple is a nice simple example pretty close to what you are using - enjoy.

A+
Dave

3

Boht plays are tasks are lists, you are passing a dictionaries, just
need 1 character to 'fix it'

- hosts: all
  tasks:
    - yum: "name=httpd state=installed"

^ see the dashes?

That is what 'playbook must be a list of plays' means, if you only fix
- hosts, next would be 'tasks needs to be a list of tasks'.

Your file is still valid YAML, it just does not return the data types
Ansible expects for plays and tasks.