AMI作成のPackerプロジェクトのワタシ的ベストプラクティス！

 1Vagrant.configure("2") do |config|
 2  config.vm.box = "centos/7"
 3
 4  config.vm.network :forwarded_port, id: "ssh", guest: 22, host: 2222
 5
 6  config.vm.provider "virtualbox" do |vb|
 7    vb.memory = "1024"
 8  end
 9  config.vm.provision "shell", inline: <<-SHELL
10    #yum -y update
11    # add user centos
12    useradd centos
13    passwd -f -u centos
14    echo "centos ALL = NOPASSWD: ALL" >> /etc/sudoers.d/centos
15    echo "centos ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/centos
16    # setup SSH
17    mkdir -p /home/centos/.ssh; chown centos /home/centos/.ssh; chmod 700 /home/centos/.ssh
18    cp /home/vagrant/.ssh/authorized_keys /home/centos/.ssh/authorized_keys
19    chown centos /home/centos/.ssh/authorized_keys
20    chmod 600 /home/centos/.ssh/authorized_keys
21    # setup sshd config
22    sed -ri 's/#PermitRootLogin yes/PermitRootLogin yes/g' /etc/ssh/sshd_config
23    sed -ri 's/UsePAM yes/#UsePAM yes/g' /etc/ssh/sshd_config
24    sed -ri 's/#UsePAM no/UsePAM no/g' /etc/ssh/sshd_config
25    systemctl restart sshd
26  SHELL
27end

 1"builders":[
 2    {
 3        "type": "null",
 4        "communicator": "ssh",
 5        "ssh_pty": true,
 6        "ssh_timeout" : "1m",
 7        "ssh_host": "{{user `ssh_host`}}",
 8        "ssh_port": "{{user `ssh_port`}}" ,
 9        "ssh_username": "{{user `ssh_user`}}",
10        "ssh_private_key_file": "{{user `ssh_key`}}"
11    }
12]

1{
2    "ssh_host": "127.0.0.1",
3    "ssh_user": "centos",
4    "ssh_key": "../.vagrant/machines/default/virtualbox/private_key",
5    "ssh_port": "2222"
6}

 1    "provisioners": [
 2        {
 3            "type": "ansible",
 4            "playbook_file" : "ansible/playbook-{{user `provision_target`}}.yml",
 5            "user": "centos",
 6            "ssh_host_key_file": "{{user `ssh_key`}}",
 7            "ansible_env_vars": [
 8                "ANSIBLE_HOST_KEY_CHECKING=False",
 9                "ANSIBLE_NOCOLOR=True"
10            ]
11        },
12        {
13            "type": "shell-local",
14            "command": "cd serverspec && sh ./run_spec.sh {{user `ssh_host`}} {{user `ssh_port`}} {{user `ssh_key`}} {{user `provision_target`}} {{user `ssh_user`}}"
15        }
16    ]

1{
2    "aws_region": "your-region",
3    "aws_vpc_id": "vpc-xxxxxxxxxxxxxx",
4    "aws_subnet_id": "subnet-xxxxxxxxxxx",
5    "ssh_user": "centos",
6    "use_profile": "your-profile",
7    "aws_instance_role": "your-packer-role",
8    "aws_keypair_name": "your-keypair-name"
9}

1{
2    "packer_tag_prefix":  "Packer-Hoge-AMI",
3    "instance_tag_prefix": "HOGE_OPTIMIZED",
4    "aws_source_ami": "ami-xxxxxxxx"
5}

 1PACKER = cd packer
 2# AnsibleのRole
 3ROLE = $1
 4# EC2へのSSH鍵（絶対パス）
 5AWS_KEY_FILE = $2
 6
 7# Vagrant初期化時に make init-vagrant を実行します。 initial-saveという名前でスナップショットを保存
 8init-vagrant:
 9	vagrant halt && vagrant destroy -f && vagrant up --provision && \
10		vagrant snapshot save initial-save
11
12# Vagrantに対して先程のNull Builderでプロビジョニングします
13test-local:
14	@${PACKER} && \
15		vagrant snapshot restore initial-save && \
16		packer build -var-file=env-local-variables.json \
17		-var 'ssh_key=$(CURDIR)/.vagrant/machines/default/virtualbox/private_key' \
18		-var 'provision_target=${ROLE}' \
19		ami-local-template.json
20
21# AWSのAMIを作成します
22create-ami:
23	@${PACKER} && \
24		packer build \
25		-var-file=env-aws-variables.json \
26		-var-file=role-${ROLE}-variables.json \
27		-var 'aws_key_file=${AWS_KEY_FILE}' \
28		-var 'provision_target=${ROLE}' \
29		ami-aws-template.json