Building base and DC/OS-ready AMIs

This example references centos7; other platforms (eg. rhel7) can be substituted.

Create base AMI

Steps to create a base AMI:

1. Create an AMI from the latest marketplace image with a secondary 8gb EBS volume attached. Export the public hostname of your launched AMI to ${HOST}:

$ export HOST=ec2-34-208-126-68.us-west-2.compute.amazonaws.com

2. Copy the centos7 folder to ${HOST}, then connect via SSH:

$ scp -r centos7 centos@${HOST}:.
$ ssh centos@${HOST}

The following steps are performed on the launched AMI:

3. cd into the centos7 folder and run create_base_ami.sh specifying the secondary EBS volume's raw device:

[centos@ip-172-31-45-48 ]$ cd centos7/
[centos@ip-172-31-45-48 centos7]$ sudo DEVICE=/dev/xvdb sh create_base_ami.sh

4. Detach secondary EBS volume

5. Create snapshot of EBS volume with name: centos7-YYYYMMDDhhmm

6. Create AMI from snapshot

   Name: centos7-YYYYMMDDhhmm (use same value as snapshot), Virtualization type: Hardware-assisted virtualization

7. Update AMI Permissions to 'Public'

8. Record in CHANGELOG.md new AMI details

Create DC/OS-ready AMI

The following steps will create a new AMI with the DC/OS pre-requisites installed via Packer:

1. Change the working directory to the centos7 subdirectory
2. Run the helper script create_dcos_ami.sh to build and deploy new DC/OS AMI's. Default values can be overridden by setting the appropriate environment variables

Reference Material

Guidelines for Shared Linux AMIs