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feat(cfn/vpn/ami): fetch AL2023 AMIs instead of Amazon Linux 2 #14

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feat(cfn/vpn/ami): fetch AL2023 AMIs instead of Amazon Linux 2 #14

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22 changes: 12 additions & 10 deletions functions/cfn/vpn/ami.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
#? of Region-to-AMI mapping as the key `Mappings` in aws-cfn-vpn template.
#? It takes a few minutes to finish, please be patient.
#?
#? For each region the latest Amazon Linux 2 AMI is fetched for BOTH the
#? For each region the latest Amazon Linux 2023 AMI is fetched for BOTH the
#? x86_64 architecture (emitted as keys `nameAmd64`/`AMIAmd64`) and, where
#? published, the arm64 architecture (emitted as keys `nameArm64`/`AMIArm64`).
#? The two architectures use symmetric, explicitly-labelled keys (Amd64 ==
Expand All @@ -18,9 +18,11 @@
#? * Public: true
#? * State: available
#? * Architecture: x86_64 and arm64
#? * Hypervisor: xen
#? * VirtualizationType: hvm
#? * Description: Amazon Linux 2 AMI*
#? * Description: Amazon Linux 2023 AMI*
#?
#? Amazon Linux 2 reached end of support on 2026-06-30; this fetches the
#? AL2023 successor AMIs (kernel-default flavor, gp3-backed).
#?
#? Some regions are not enabled for your account by default. Those regions
#? will be updated with an empty AMI object: {}.
Expand All @@ -47,11 +49,11 @@
#? "Mappings": {
#? "RegionMap": {
#? "ap-northeast-1": {
#? "nameAmd64": "amzn2-ami-hvm-2.0.20260526.0-x86_64-gp2",
#? "AMIAmd64": "ami-006364fbd0e812d5e",
#? "nameArm64": "amzn2-ami-hvm-2.0.20260526.0-arm64-gp2",
#? "AMIArm64": "ami-09be0d7ea855efaf9",
#? "created": "2026-05-26T18:12:45.000Z",
#? "nameAmd64": "al2023-ami-2023.12.20260608.0-kernel-6.1-x86_64",
#? "AMIAmd64": "ami-0c02cf818fceb9254",
#? "nameArm64": "al2023-ami-2023.12.20260608.0-kernel-6.1-arm64",
#? "AMIArm64": "ami-0c3f2b4be5dc82c2f",
#? "created": "2026-06-04T17:20:42.000Z",
#? "location": "Asia Pacific (Tokyo)"
#? },
#? ...
Expand All @@ -76,7 +78,7 @@ function ami () {
declare region=${1:?} arch=${2:-x86_64}
aws ssm get-parameters \
--region "$region" \
--names "/aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-${arch}-gp2" \
--names "/aws/service/ami-amazon-linux-latest/al2023-ami-kernel-default-${arch}" \
--query 'Parameters[*].[Value]' \
--output text
}
Expand All @@ -88,7 +90,7 @@ function ami () {
#? Emits a single JSON object per region carrying both the x86_64 AMI
#? (keys `nameAmd64`/`AMIAmd64`) and, when available, the arm64 AMI
#? (keys `nameArm64`/`AMIArm64`). The arm64 keys are omitted for regions
#? that do not publish an arm64 Amazon Linux 2 AMI, so the template's
#? that do not publish an arm64 Amazon Linux 2023 AMI, so the template's
#? `Fn::FindInMap [.., AMIArm64]` only resolves where arm64 is supported.
#?
declare region=${1:?} filters location id_x86 id_arm64 image_ids arm64_keys query
Expand Down