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I Need to Automate the creation EC2 instances (50 of them) with two static private IP address and static hostname
I Need to Automate the creation EC2 Centos7 instances (50 of them) with two private IP address. I am familiar with Ansible or AWS Cloudformation so I can use either tool. Here are my requirements
- Eth0 needs to be on the 172.30.0.x subnet (Pre-existing subnetA)
- Eh1 needs to be on the 172.20.1.x subnet. (Pre-existing subnetB)
- The IP address need to be private and controlled for each instance for example for Node 90 The IP for Eth0 is 172.30.0.78 and for Eth1 it is 172.30.1.78.
- The Hostname needs to be changed Node {90 - 140}
The challenge that I am running into is that it is hard to find example where someone has done something similar. For example I don't know how to
1. Assign a Subnet / Private to one NIC
2. Assign a different Subnet / Private IP to a different NIC --most docs just show support for one NIC
3. Change the Hostname during time of EC2 instance Creation
Most of the stuff I want to is static. Most of the documentation only shows how to create dynamically assigned attribute. Or leverage VPC / Subnets that Cloudformation created and is already aware of (e.g. !REF)
Does anyone know a good article suggestions such that shows how to do this or a good Github example I can use as a template?
- Eth0 needs to be on the 172.30.0.x subnet (Pre-existing subnetA)
- Eh1 needs to be on the 172.20.1.x subnet. (Pre-existing subnetB)
- The IP address need to be private and controlled for each instance for example for Node 90 The IP for Eth0 is 172.30.0.78 and for Eth1 it is 172.30.1.78.
- The Hostname needs to be changed Node {90 - 140}
The challenge that I am running into is that it is hard to find example where someone has done something similar. For example I don't know how to
1. Assign a Subnet / Private to one NIC
2. Assign a different Subnet / Private IP to a different NIC --most docs just show support for one NIC
3. Change the Hostname during time of EC2 instance Creation
Most of the stuff I want to is static. Most of the documentation only shows how to create dynamically assigned attribute. Or leverage VPC / Subnets that Cloudformation created and is already aware of (e.g. !REF)
Does anyone know a good article suggestions such that shows how to do this or a good Github example I can use as a template?
ASKER
No doubt however EC2 is a decision made up higher on the food chain than me. I have to solve this with EC2. Any thoughts?
You can achieve this by writing code on Ansible. I done similiar job 1 yr back using Ansible Tower.
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If you get jammed up + can't figure out how to do this on EC2, because everything's just more difficult with EC2, reach out + I can share how I do this with LXD.
I setup... sometimes 100s of containers in a day... Simple. Fast. They work every time, with zero headache.
I had to abandon EC2 years ago, because everything was some complex... failed oddly... never seemed to operate as expected, especially with complex networking requirements.