packer对docker和aws AMI的支持都很好，来上个图：
配套的模版长这样:
{
"variables": {
"name": "webimage",
"namespace": "jamtur01",
"fqdn": "webapp.example.com",
"osName": "ubuntu",
"osVersion": "17.04",
"ami": "ami-a025aeb6",
"aws_region": "us-east-1",
"aws_access_key": "",
"aws_secret_key": ""
},
"builders": [{
"type": "docker",
"image": "{{user `osName`}}:{{user `osVersion`}}",
"commit": true
},
{
"type": "amazon-ebs",
"access_key": "{{user `aws_access_key`}}",
"secret_key": "{{user `aws_secret_key`}}",
"region": "{{user `aws_region`}}",
"source_ami": "{{user `ami`}}",
"instance_type": "t2.micro",
"ssh_username": "ubuntu",
"ami_name": "{{user `fqdn`}}-{{timestamp | clean_ami_name}}",
"ami_description": "Web Application Image",
"tags": {
"name": "{{user `name`}}",
"namespace": "{{user `namespace`}}",
"fqn": "{{user `fqdn`}}",
"os": "{{user `osName`}} {{user `osVersion`}}",
"built": "{{isotime}}"
}
}
],
"provisioners": [
{
"type": "file",
"source": "Gemfile",
"destination": "/tmp/Gemfile"
},
{
"type": "shell",
"script": "provision.sh",
"override": {
"amazon-ebs": {
"execute_command": "sudo {{.Path}}"
}
}
}
],
"post-processors": [
[
{
"type": "docker-tag",
"repository": "{{user `namespace`}}/{{user `name`}}",
"tag": "{{user `fqdn`}}",
"only": ["docker"]
},
{
"type": "docker-push",
"only": ["docker"]
}
]
]
}
再来一张在CI中使用packer的图：
