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#Lucidchart diagrams for aws ami how to#
#Lucidchart diagrams for aws ami update#
#Lucidchart diagrams for aws ami code#
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#Lucidchart diagrams for aws ami windows#

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Collaborate in real time to create flowcharts, ERDs, BPMN diagrams, wireframes, mockups, network diagrams, org charts, and more. I hope you have enjoyed this post, it’s a simple start with many more things to come.Lucidchart Diagrams Description: Lucidchart is the #1 visual productivity platform for teams. There are ways we could improve the script, but for now this is more than suitable. Overall we have achieved what we set out to do. Could use AWS CLI to get the instance name tag.) (Can use ec2-metadata to obtain a lot of this information, but tags are not included in this list.

Would be easier to understand if more details concerning the instance were put into the script, such as the name tag.

Root privileges are required to set up (possibly avoidable with AWS Systems Manager).

#Lucidchart diagrams for aws ami windows#

Windows would require something different. Could set up a trigger with SMS and Lambda to stop the rule without the need for human intervention.

CloudWatch rule must be stopped manually.

Only a basic understanding of AWS is required.

Only the Slack web hook would have to be changed if a different channel was required, otherwise no need to edit the script.

The script is reusable can be used on most if not all Linux instances on AWS.

Let us now consider the advantages and disadvantages of this method. The script can be turned on/off easily from the AWS console (or by the AWS CLI) and we can change the time schedule there as well.

#Lucidchart diagrams for aws ami update#

We have now configured for security updates to run on the AWS EC2 Linux instance on a specific time schedule, with the result of the update being sent to a channel in Slack.

Success! You can customize the name and image of the web hook in the Slack settings menu.

The script will run the update, then pass the output to a post function which uses the Slack web hook to post the output in your channel.Įven if there are no updates due, the message will still be sent.

The CloudWatch Rule uses AWS Systems Manager to call the SSM Agent which runs the script.

Select “Create a new role for this specific resource”Ĭlick on “Configure details”. i-a1b2c3d4e5Ĭlick on the “Configure parameters” drop down. # This script runs a security update then pushes the output to Slack.

#Lucidchart diagrams for aws ami free#

The diagram was drawn using a free account in LucidChart.

#Lucidchart diagrams for aws ami code#

The source code originally came from here: Slack notification via curl

A Slack account with a channel for receiving the output logs and the permission to create a webhook.

Permission to access the EC2 instance via SSH connection and use root credentials.

EC2 Linux-based instance with AWS CLI installed.

AWS account with privileges to create a CloudWatch rule and use Systems Manager.

If it ever becomes necessary to stop the updates, we want to be able to do so quickly and easily, without having to remove what we put in place.

The 3rd point is important as it adds a layer of convenience to the method. Be able to change the time schedule or turn on/off without having to access the instance.Be notified of the update and see the output in a Slack channel.Automatically run security updates on an EC2 Linux instance on a pre-determined schedule.Objectivesįirst, let’s consider what we want to achieve, so as to determine what the end result should be:

#Lucidchart diagrams for aws ami how to#

Today, I will be detailing how to schedule a security update script to be run on an EC2 Linux instance on a time schedule, then push the output logs to a Slack channel for everyone to see. Occasionally I will make something cool and useful, most likely involving AWS, which I would like to share with you. My main focuses are optimizing the AWS environments and the server middleware. Hello there! My name is Adam, an aspiring DevOps engineer who joined the Infrastructure team of Linkbal this year in February.