open-nomad/e2e/terraform/packer/README.md

65 lines
2.3 KiB
Markdown

# Packer Builds
These builds are run as-needed to update the AMIs used by the end-to-end test infrastructure.
## What goes here?
* steps that aren't specific to a given Nomad build: ex. all Linux instances need `jq` and `awscli`.
* steps that aren't specific to a given EC2 instance: nothing that includes an IP address.
* steps that infrequently change: the version of Consul or Vault we ship.
## Running Packer builds
```sh
$ packer --version
1.4.4
# build linux AMI
$ packer build packer.json
# build Windows AMI
$ packer build packer-windows.json
```
## Debugging Packer Builds
You'll need the Windows administrator password in order to access Windows machines via `winrm` as Packer does. You can get this by enabling `-debug` on your Packer build.
```sh
packer build -debug -on-error=abort packer-windows.json
...
==> amazon-ebs: Pausing after run of step 'StepRunSourceInstance'. Press enter to continue.
==> amazon-ebs: Waiting for auto-generated password for instance...
amazon-ebs: Password (since debug is enabled): <redacted>
```
Alternately, you can follow the steps in the [AWS documentation](https://aws.amazon.com/premiumsupport/knowledge-center/retrieve-windows-admin-password/). Note that you'll need the `ec2_amazon-ebs.pem` file that Packer drops in this directory.
Then in powershell (note the leading `$` here indicate variable declarations, not shell prompts!):
```
$username = "Administrator"
$password = "<redacted>"
$securePassword = ConvertTo-SecureString -AsPlainText -Force $password
$remoteHostname = "54.x.y.z"
$port = 5986
$cred = New-Object System.Management.Automation.PSCredential ($username, $securePassword)
$so = New-PSSessionOption -SkipCACheck -SkipCNCheck
Enter-PsSession `
-ComputerName $remoteHostname `
-Port $port `
-Credential $cred `
-UseSSL `
-SessionOption $so `
-Authentication Basic
```
Packer doesn't have a cleanup command if you've run `-on-error=abort`. So when you're done, clean up the machine by looking for "Packer" in the AWS console:
* [EC2 instances](https://console.aws.amazon.com/ec2/home?region=us-east-1#Instances:search=Packer;sort=tag:Name)
* [Key pairs](https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#KeyPairs:search=packer;sort=keyName)
* [Security groups](https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#SecurityGroups:search=packer;sort=groupName)