How Do You Fix the Puppet Bolt Command when the Message Returned is “Unknown argument ‘–nodes'”?

Problem scenario
You run a Puppet Bolt command but you get “Unknown argument ‘–nodes'”. What should you do?

Solution
Use “–Targets” instead of “–nodes”.

 » Read more..

How Do You Run a Bolt Command from a Linux Server to a Windows Server?

Problem scenario
You want to run a PowerShell script or run an interactive command on a Windows server. You have Puppet Bolt installed on a Linux server. You do not need to use SSL. What do you do?

Solution
Run a command like this (but substitute x.x.x.x with the IP address of the Windows server, jdoe with the username and coolpassword with jdoe’s password):

bolt command run “Get-Process” –Targets winrm://x.x.x.x –no-ssl –user jdoe –password coolpassword

To run a script called “cool.ps1”,

 » Read more..

How Do You Install StackStorm?

Problem scenario
You want to try this automation tool called Stack Storm. How do you install it on Linux?

Solution
Prerequisites

  • We recommend a server with four CPUs. The load on a server with one CPU can be above 20 when trying to install it — if it is possible to install it correctly on a server with one CPU.

 » Read more..

How Do You Install Puppet Master Version 6 on a RHEL Version 8.x Server?

Problem scenario
You want to install Puppet Master version 6.x on a RHEL version 8.x server. What do you do?

Solution
Run this script:

#!/bin/bash
# Written by continualintegration.com

yum -y update
rpm -ivh https://yum.puppetlabs.com/puppet6/puppet6-release-el-8.noarch.rpm
# rpm -ivh https://yum.puppetlabs.com/puppetlabs-release-el-8.noarch.rpm
# To install a legacy version of Puppet (3.x), comment out the first rpm stanza and uncomment out the second.

yum -y install puppetserver
ln -s /opt/puppetlabs/puppet/bin/puppet /usr/bin/puppet  » Read more..

How Do You Install and Configure Chef Client on a Linux Server in AWS or Azure?

Updated 11/9/17

Problem scenario
In AWS or Azure you have Linux instances that you want to be configured to use a Chef Server.  How do you install Chef client and configure it to work with a Chef server?

Solution
These directions have been tested in Azure (with an Ubuntu 16.x server as either the Chef client node or the Chef server) and AWS (with a Red Hat Enterprise Linux 7.x server as the Chef client node or the Chef server).

 » Read more..

How Do You Troubleshoot an Ansible Playbook Failing with “The filter … is invalid…AttributeError: Client Error object has no attribute message”?

Problem scenario
Your playbook fails with the following message: “The filter … is invalid…AttributeError: Client Error object has no attribute message”?

What should you do?

Solution
Remove the word “filter” and try your playbook again.

 » Read more..

How Do You Use Ansible to Have Retrievable Double Quotes ‘”‘ in a Variable?

Problem scenario
You are using Ansible, and you want a playbook to have a variable with double quotes. The double quotes are disappearing from your echo var1.stdout[:] invocations. How do you get shell/bash commands to have double quotes?

Solution
Rather than “echo” a string with double quotes, use a variable assignment. Do not use this: echo “a \”long string\” for a \”test\” “

Use something like this: coolstring=”a \”long string\” for a \”test\” ” &&

 » Read more..

How Do You Fix the Stack Storm Error “Failed to authenticate”?

Problem scenario
You run an st2 command, but it fails with an error like this:

Failed to authenticate with credentials provided in the config.
ERROR: 401 Client Error: Unauthorized
MESSAGE: Invalid or missing credentials for url: http://127.0.0.1:9100/tokens

What should you do?

Solution
Run a command like this (but replace “jdoe” and “passwordhere” with your credentials respectively):

st2 login jdoe –password ‘passwordhere’

Now run the st2 command(s).

 » Read more..

How Do You Troubleshoot the Error “unexpected EOF while looking for match `\”‘”?

Problem scenario
You run a Bash command or an Ansible playbook, but you get stymied by this problem: “unexpected EOF while looking for match `\”‘”

What should you do when you see this message?

Solution
Verify your escape characters have a space after the symbol that they are escaping.

For example, if you have \””

change it to \” “

The escape character may be working on two sequential symbols (without a space).

 » Read more..

What Is the Syntax for Viewing ec2_instance_info Return Values in Ansible?

Problem scenario
You read about a supported data type (defined keys) in Ansible playbooks related to EC-2 servers in AWS. How do you view this data?

Solution

  1. Have a playbook (.yaml file) with the following syntax:

ec2_instance_info:
region: us-west-1
register: vara

  1. Refer to vara as a variable. Here is an example of how to see it:

debug:
msg: “{{ item.instance_id }}”
loop: “{{ vara.instances }}”

 » Read more..