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Pin SocketMode image asset to LINUX_ARM64 (#42)

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The task runs ARM64, but the image asset had no explicit platform, so
the amd64 CD runner built an amd64 image (QEMU alone does not change
the default target). Revision :8 crash-looped with "exec format
error" (50 failed task starts); CloudFormation hung on service
stabilization until cancelled. Local arm64 builds masked this -
deploys from this Mac always produced the right image.

Same fix pattern as the org-wide QEMU+platform rule for arm64 Lambda
bundling.
This commit is contained in:
Adam Moussa 2026-06-03 16:04:22 -04:00 • committed by GitHub
parent 97456f6104
commit f2a0a7945f
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5
lib/constructs/socket-mode.ts
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@ -3,6 +3,7 @@ import * as cdk from 'aws-cdk-lib';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
import * as ecs from 'aws-cdk-lib/aws-ecs';
import * as ecr from 'aws-cdk-lib/aws-ecr';
import * as ecrAssets from 'aws-cdk-lib/aws-ecr-assets';
import * as logs from 'aws-cdk-lib/aws-logs';
import * as iam from 'aws-cdk-lib/aws-iam';
import * as dynamodb from 'aws-cdk-lib/aws-dynamodb';
@ -76,6 +77,10 @@ export class SocketModeConstruct extends Construct {
taskDef.addContainer('listener', {
image: ecs.ContainerImage.fromAsset(
path.join(__dirname, '../../listener'),
// Explicit platform: the task is ARM64, and without this an amd64 CI
// runner builds an amd64 image even with QEMU enabled — tasks then
// crash-loop with "exec format error" (50 failed starts on 2026-06-03).
{ platform: ecrAssets.Platform.LINUX_ARM64 },
),
essential: true,
environment: {