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feat: Introduce Amazon Linux 2023 ARM image #4780

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3d30fc0
feat: Introduce Amazon Linux 2023 ARM image
dimamo5 Sep 21, 2025
aeaca0c
Remove unused variable
dimamo5 Sep 26, 2025
dac5853
Parameterize architecture
dimamo5 Sep 26, 2025
6e595ef
Align defaults
dimamo5 Sep 26, 2025
defeda2
Merge branch 'main' into amazon-linux-2023-arm
npalm Oct 5, 2025
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28 changes: 19 additions & 9 deletions images/linux-al2023/github_agent.linux.pkr.hcl
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
packer {
required_plugins {
amazon = {
version = ">= 0.0.2"
version = ">= 1.0.0"
source = "github.com/hashicorp/amazon"
}
}
Expand All @@ -12,6 +12,16 @@ variable "runner_version" {
default = null
}

variable "architecture" {
description = "The architecture of the runner. Supported values are 'x64' and 'arm64'"
type = string
default = "x64"
validation {
condition = contains(["arm64", "x64"], var.architecture)
error_message = "`architecture` value is not valid, valid values are: `arm64` and `x64`."
}
}

variable "region" {
description = "The region to build the image in"
type = string
Expand Down Expand Up @@ -39,7 +49,7 @@ variable "associate_public_ip_address" {
variable "instance_type" {
description = "The instance type Packer will use for the builder"
type = string
default = "m3.medium"
default = null
}

variable "iam_instance_profile" {
Expand Down Expand Up @@ -99,12 +109,13 @@ data "http" github_runner_release_json {

locals {
runner_version = coalesce(var.runner_version, trimprefix(jsondecode(data.http.github_runner_release_json.body).tag_name, "v"))
instance_type = coalesce(var.instance_type, var.architecture == "arm64" ? "t4g.medium" : "m3.medium")
}

source "amazon-ebs" "githubrunner" {
ami_name = "github-runner-al2023-x86_64-${formatdate("YYYYMMDDhhmm", timestamp())}"
instance_type = var.instance_type
iam_instance_profile = var.iam_instance_profile
ami_name = "github-runner-al2023-${var.architecture}-${formatdate("YYYYMMDDhhmm", timestamp())}"
instance_type = local.instance_type
iam_instance_profile = var.iam_instance_profile
region = var.region
security_group_id = var.security_group_id
subnet_id = var.subnet_id
Expand All @@ -113,7 +124,7 @@ source "amazon-ebs" "githubrunner" {

source_ami_filter {
filters = {
name = "al2023-ami-2023.*-kernel-6.*-x86_64"
name = "al2023-ami-2023.*-kernel-6.*-${var.architecture == "x64" ? "x86_64" : var.architecture}"
root-device-type = "ebs"
virtualization-type = "hvm"
}
Expand Down Expand Up @@ -166,20 +177,19 @@ build {
install_runner = templatefile("../../modules/runners/templates/install-runner.sh", {
ARM_PATCH = ""
S3_LOCATION_RUNNER_DISTRIBUTION = ""
RUNNER_ARCHITECTURE = "x64"
})
})
destination = "/tmp/install-runner.sh"
}

provisioner "shell" {
environment_vars = [
"RUNNER_TARBALL_URL=https://github.com/actions/runner/releases/download/v${local.runner_version}/actions-runner-linux-x64-${local.runner_version}.tar.gz"
"RUNNER_TARBALL_URL=https://github.com/actions/runner/releases/download/v${local.runner_version}/actions-runner-linux-${var.architecture}-${local.runner_version}.tar.gz"
]
inline = [
"sudo chmod +x /tmp/install-runner.sh",
"echo ec2-user > /tmp/install-user.txt",
"sudo RUNNER_ARCHITECTURE=x64 RUNNER_TARBALL_URL=$RUNNER_TARBALL_URL /tmp/install-runner.sh"
"sudo RUNNER_TARBALL_URL=$RUNNER_TARBALL_URL /tmp/install-runner.sh"
]
}

Expand Down
1 change: 0 additions & 1 deletion modules/runners/templates/install-runner.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@
## install the runner

s3_location=${S3_LOCATION_RUNNER_DISTRIBUTION}
architecture=${RUNNER_ARCHITECTURE}
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What is the reason of removing this variable? Is it not used?


if [ -z "$RUNNER_TARBALL_URL" ] && [ -z "$s3_location" ]; then
echo "Neither RUNNER_TARBALL_URL or s3_location are set"
Expand Down