add hcl examples to all standalone code examples in the amazon-chroot page
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Megan Marsh
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@ -127,24 +127,35 @@ Here is a basic example. It is completely valid except for the access keys:
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<Tab heading="HCL2">
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```hcl
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// To make Packer read these variables from the environment into the var object,
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// set the environment variables to have the same name as the declared
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// variables, with the prefix PKR_VAR_.
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// You could also hardcode them into the file, but we recommend against that.
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// export PKR_VAR_aws_access_key=$YOURKEY
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variable "aws_access_key" {
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type = string
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// default = "hardcoded_key"
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}
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// export PKR_VAR_aws_secret_key=$YOURSECRETKEY
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variable "aws_secret_key" {
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type = string
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// default = "hardcoded_secret_key"
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}
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source "amazon-chroot" "basic-example" {
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access_key = var.aws_access_key
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secret_key = var.aws_secret_key
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ami_name = "example-chroot"
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source_ami = "ami-e81d5881"
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}
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build {
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source "sources.amazon-chroot.basic-example" {
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ami_name = "packer-amazon-chroot {{timestamp}}"
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}
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sources = [
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"source.amazon-chroot.basic-example"
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]
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}
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```
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@ -163,20 +174,42 @@ chroot by Packer:
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- `/dev/pts` (devpts)
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- `/proc/sys/fs/binfmt_misc` (binfmt_misc)
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These default mounts are usually good enough for anyone and are sane defaults.
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However, if you want to change or add the mount points, you may using the
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`chroot_mounts` configuration. Here is an example configuration which only
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These default mounts are usually good enough for anyone and are reasonable
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defaults. However, if you want to change or add the mount points, you may using
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the `chroot_mounts` configuration. Here is an example configuration which only
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mounts `/proc` and `/dev`:
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<Tabs>
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<Tab heading="JSON">
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```json
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{
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...
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"builders": [{
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"type": "amazon-chroot"
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...
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"chroot_mounts": [
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["proc", "proc", "/proc"],
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["bind", "/dev", "/dev"]
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]
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}]
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```
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</Tab>
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<Tab heading="HCL2">
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```hcl
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source "amazon-chroot" "basic-example" {
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// ... other builder options
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chroot_mounts = [
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["proc", "proc", "/proc"],
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["bind", "/dev", "/dev"]
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]
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}
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```
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</Tab>
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</Tabs>
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`chroot_mounts` is a list of a 3-tuples of strings. The three components of the
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3-tuple, in order, are:
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@ -210,23 +243,56 @@ For debian based distributions you can setup a
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file which will prevent packages installed by your provisioners from starting
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services:
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```json
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({
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"type": "shell",
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"inline": [
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"echo '#!/bin/sh' > /usr/sbin/policy-rc.d",
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"echo 'exit 101' >> /usr/sbin/policy-rc.d",
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"chmod a+x /usr/sbin/policy-rc.d"
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]
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},
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// ...
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{
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"type": "shell",
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"inline": ["rm -f /usr/sbin/policy-rc.d"]
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})
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<Tabs>
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<Tab heading="JSON">
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```json
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"provisioners": [
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{
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"type": "shell",
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"inline": [
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"echo '#!/bin/sh' > /usr/sbin/policy-rc.d",
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"echo 'exit 101' >> /usr/sbin/policy-rc.d",
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"chmod a+x /usr/sbin/policy-rc.d"
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]
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},
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{
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"type": "shell",
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"inline": ["rm -f /usr/sbin/policy-rc.d"]
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}
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]
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```
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</Tab>
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<Tab heading="HCL2">
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```hcl
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// ...
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build {
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sources = [
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"source.amazon-chroot.basic-example"
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]
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// Set policy
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provisioner "shell" {
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inline = [
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"echo '#!/bin/sh' > /usr/sbin/policy-rc.d",
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"echo 'exit 101' >> /usr/sbin/policy-rc.d",
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"chmod a+x /usr/sbin/policy-rc.d"
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]
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}
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// Un-set policy
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provisioner "shell" {
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inline = ["rm -f /usr/sbin/policy-rc.d"]
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}
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}
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```
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</Tab>
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</Tabs>
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### Ansible provisioner
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Running ansible against `amazon-chroot` requires changing the Ansible
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@ -242,6 +308,9 @@ involving the `nvme_device_path` option above. Read that for more information.
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A working example for mounting an NVMe device is below:
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<Tabs>
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<Tab heading="JSON">
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```json
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{
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"variables": {
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@ -276,6 +345,60 @@ A working example for mounting an NVMe device is below:
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}
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```
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</Tab>
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<Tab heading="HCL2">
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```hcl
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// export PKR_VAR_aws_access_key=$YOURKEY
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variable "aws_access_key" {
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type = string
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}
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// export PKR_VAR_aws_secret_key=$YOURSECRETKEY
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variable "aws_secret_key" {
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type = string
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}
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source "amazon-chroot" "basic-example" {
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access_key = var.aws_access_key
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secret_key = var.aws_secret_key
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region = "us-east-1"
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source_ami_filter {
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filter {
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key = "virtualization-type"
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value = "hvm"
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}
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filter {
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key = "name"
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value = "amzn-ami-hvm-*"
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}
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filter {
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key = "root-device-type"
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value = "ebs"
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}
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owners = ["137112412989"]
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most_recent = true
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}
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ena_support = true
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ami_name = "amazon-chroot-test-{{timestamp}}"
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nvme_device_path = "/dev/nvme1n1p"
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device_path = "/dev/sdf"
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}
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build {
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sources = [
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"source.amazon-chroot.basic-example"
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]
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provisioner "shell" {
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inline = ["echo Test > /tmp/test.txt"]
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}
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}
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```
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</Tab>
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</Tabs>
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Note that in the `nvme_device_path` you must end with the `p`; if you try to
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define the partition in this path (e.g. `nvme_device_path`: `/dev/nvme1n1p1`)
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and haven't also set the `"mount_partition": 0`, a `1` will be appended to the
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@ -289,6 +412,9 @@ The device setup commands partition the device with one partition for use as an
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HVM image and format it ext4. This builder block should be followed by
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provisioning commands to install the os and bootloader.
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<Tabs>
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<Tab heading="JSON">
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```json
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{
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"type": "amazon-chroot",
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@ -311,6 +437,53 @@ provisioning commands to install the os and bootloader.
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}
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```
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</Tab>
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<Tab heading="HCL2">
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```hcl
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// This example assumes that AWS_SECRET_ACCESS_KEY and AWS_ACCESS_KEY_ID are
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// set in your environment, or a ~/.aws/credentials file is configured.
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source "amazon-chroot" "basic-example" {
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region = "us-east-1"
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ami_name = "packer-from-scratch {{timestamp}}"
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from_scratch = true
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ami_virtualization_type = "hvm"
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pre_mount_commands = [
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"parted {{.Device}} mklabel msdos mkpart primary 1M 100% set 1 boot on print",
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"mkfs.ext4 {{.Device}}1"
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]
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root_volume_size = 15
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root_device_name = "xvda"
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ami_block_device_mappings {
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device_name = "xvda"
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delete_on_termination = true
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volume_type = "gp2"
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}
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}
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build {
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sources = [
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"source.amazon-chroot.basic-example"
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]
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provisioner "shell" {
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inline = [
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"echo '#!/bin/sh' > /usr/sbin/policy-rc.d",
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"echo 'exit 101' >> /usr/sbin/policy-rc.d",
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"chmod a+x /usr/sbin/policy-rc.d"
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]
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}
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provisioner "shell" {
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inline = ["rm -f /usr/sbin/policy-rc.d"]
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}
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}
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```
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</Tab>
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</Tabs>
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## Build template data
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In configuration directives marked as a template engine above, the following
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