wip: test multi-arch angular build

Signed-off-by: Chaz Leong <13462818+cleong14@users.noreply.github.com>

angular-ui/Jenkinsfile

@@ -1,31 +1,75 @@
 pipeline {
-  agent {
-    kubernetes {
-      yaml """
-      apiVersion: v1
-      kind: Pod
-      spec:
-        restartPolicy: Never
-        containers:
-        - name: build
-          image: artifactory.cloud.cms.gov/docker/library/node:18-alpine
-          command: ['tail', '-f', '/dev/null']
-      """
-    }
+  parameters {
+    string(name: 'platform', defaultValue: 'linux/amd64', description: 'A comma separated list of platforms to build the container image for (e.g., linux/amd64,linux/arm64).')
   }
 
+  agent none
+
   stages {
-    stage('Build') {
+    stage('Build linux/arm64 Image') {
+      agent {
+        kubernetes {
+          yaml """
+          apiVersion: v1
+          kind: Pod
+          spec:
+            nodeSelector:
+              kubernetes.io/arch: arm64
+            restartPolicy: Never
+            containers:
+            - name: build
+              image: artifactory.cloud.cms.gov/docker/library/node:18-alpine
+              imagePullPolicy: Always
+              command: ['tail', '-f', '/dev/null']
+          """
+        }
+      }
+      when {
+        beforeAgent true
+        equals expected: 'linux/arm64', actual: "${params.platform}"
+      }
+      steps {
+        container('build') {
+          dir('angular-ui') {
+            sh 'npm ci && npm cache clean --force'
+          }
+        }
+      }
+    }
+
+    stage('Build linux/amd64 Image') {
+      agent {
+        kubernetes {
+          yaml """
+          apiVersion: v1
+          kind: Pod
+          spec:
+            nodeSelector:
+              kubernetes.io/arch: amd64
+            restartPolicy: Never
+            containers:
+            - name: build
+              image: artifactory.cloud.cms.gov/docker/library/node:18-alpine
+              imagePullPolicy: Always
+              command: ['tail', '-f', '/dev/null']
+          """
+        }
+      }
+      when {
+        beforeAgent true
+        equals expected: 'linux/amd64', actual: "${params.platform}"
+      }
       steps {
         container('build') {
           dir('angular-ui') {
-            sh 'npm ci'
+            sh 'npm ci && npm cache clean --force'
           }
         }
       }
     }
 
     stage('Test') {
+      agent any
       parallel {
         stage('Unit Test') {
           steps {
@@ -67,6 +111,7 @@ pipeline {
     }
 
     stage('Delivery') {
+      agent any
       steps {
         build(job: 'Angular UI Delivery', wait: true, propagate: true, parameters: [
           string(name: 'tag', value: "${GIT_COMMIT[0..7]}"),