Update demo scripts (#145)

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## What was changed
<!-- Describe what has changed in this PR -->
- Creates a helm chart for the demo worker
- Fixes the build for the demo worker
- Updates go dependencies in the demo submodule
- Configures kube context and temporal cloud namespace via
`skaffold.env` (gitignored)
- Adds CI check to ensure that demo worker builds successfully

## Why?
<!-- Tell your future self why have you made these changes -->
These changes make it possible to run the demo in a custom k8s context
(not minikube) and against a configurable Temporal cloud namespace or
self-hosted cluster _without_ modifying checked-in files.

Also, the demo build was broken. 😅 

## Checklist
<!--- add/delete as needed --->

1. Closes #142

2. How was this tested:

Manually ran each command in the demo readme

3. Any docs updates needed?
<!--- update README if applicable
      or point out where to update docs.temporal.io -->

Demo readme includes a few updates.

Author: jlegrone

.github/workflows/test-integration.yml

@@ -6,6 +6,42 @@ on:
   pull_request:
 
 jobs:
+  skaffold-build:
+    name: Test Skaffold Build
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version-file: 'go.mod'
+        check-latest: true
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Install Skaffold
+      run: |
+        curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-amd64
+        sudo install skaffold /usr/local/bin/
+        skaffold config set --global collect-metrics false
+
+    - name: Build worker-controller image
+      run: |
+        skaffold build --profile worker-controller --push=false
+
+    - name: Build helloworld worker image
+      run: |
+        skaffold build --profile helloworld-worker --push=false
+
+    # Verify that the demo worker patch applies successfully and builds.
+    - name: Build helloworld worker image patch
+      run: |
+        git apply internal/demo/helloworld/changes/no-version-gate.patch
+        skaffold build --profile helloworld-worker --push=false
+
   test-integration:
     name: Run Integration Tests
     runs-on: ubuntu-latest
@@ -38,7 +74,7 @@ jobs:
 
     - name: Install controller-gen
       run: |
-        go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.16.2
+        go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.19.0
         
     - name: Install envtest
       run: |

.gitignore

@@ -4,6 +4,7 @@ bin
 dist
 
 secret.env
+skaffold.env
 certs
 
 .DS_Store

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.24 AS builder
+FROM golang:1.25 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 

Makefile

@@ -37,7 +37,7 @@ TEMPORAL ?= temporal
 
 ## Tool Versions
 HELM_VERSION ?= v3.14.3
-CONTROLLER_TOOLS_VERSION ?= v0.16.2
+CONTROLLER_TOOLS_VERSION ?= v0.19.0
 
 ##### Tools #####
 print-go-version:
@@ -161,7 +161,7 @@ generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and
 # source secret.env && make start-sample-workflow TEMPORAL_CLOUD_API_KEY=$TEMPORAL_CLOUD_API_KEY
 .PHONY: start-sample-workflow
 start-sample-workflow: ## Start a sample workflow.
-	@$(TEMPORAL) workflow start --type "HelloWorld" --task-queue "hello_world" \
+	@$(TEMPORAL) workflow start --type "HelloWorld" --task-queue "default/helloworld" \
       --tls-cert-path certs/client.pem \
       --tls-key-path certs/client.key \
       --address "worker-controller-test.a2dd6.tmprl.cloud:7233" \
@@ -171,7 +171,7 @@ start-sample-workflow: ## Start a sample workflow.
 
 .PHONY: apply-load-sample-workflow
 apply-load-sample-workflow: ## Start a sample workflow every 15 seconds
-	watch --interval 0.1 -- $(TEMPORAL) workflow start --type "HelloWorld" --task-queue "hello_world"
+	watch --interval 0.1 -- $(TEMPORAL) workflow start --type "HelloWorld" --task-queue "default/helloworld"
 
 .PHONY: list-workflow-build-ids
 list-workflow-build-ids: ## List workflow executions and their build IDs.

go.mod

@@ -1,8 +1,6 @@
 module github.com/temporalio/temporal-worker-controller
 
-go 1.24.5
-
-toolchain go1.24.6
+go 1.25.0
 
 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
@@ -130,6 +128,7 @@ require (
 	github.com/sony/gobreaker v1.0.0 // indirect
 	github.com/spf13/cast v1.7.0 // indirect
 	github.com/spf13/pflag v1.0.6 // indirect
+	github.com/spiffe/go-spiffe/v2 v2.5.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/temporalio/ringpop-go v0.0.0-20250130211428-b97329e994f7 // indirect
 	github.com/temporalio/sqlparser v0.0.0-20231115171017-f4060bcfa6cb // indirect
@@ -138,6 +137,7 @@ require (
 	github.com/uber-common/bark v1.3.0 // indirect
 	github.com/uber-go/tally/v4 v4.1.17 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
+	github.com/zeebo/errs v1.4.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/detectors/gcp v1.34.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.59.0 // indirect
@@ -176,8 +176,8 @@ require (
 	google.golang.org/genproto v0.0.0-20250303144028-a0af3efb3deb // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20250303144028-a0af3efb3deb // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250303144028-a0af3efb3deb // indirect
-	google.golang.org/grpc v1.71.0 // indirect
-	google.golang.org/protobuf v1.36.5 // indirect
+	google.golang.org/grpc v1.72.2 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/validator.v2 v2.0.1 // indirect

go.sum

@@ -339,6 +339,8 @@ github.com/spf13/cast v1.7.0 h1:ntdiHjuueXFgm5nzDRdOS4yfT43P5Fnud6DH50rz/7w=
 github.com/spf13/cast v1.7.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
 github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
 github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spiffe/go-spiffe/v2 v2.5.0 h1:N2I01KCUkv1FAjZXJMwh95KK1ZIQLYbPfhaxw8WS0hE=
+github.com/spiffe/go-spiffe/v2 v2.5.0/go.mod h1:P+NxobPc6wXhVtINNtFjNWGBTreew1GBUCwT2wPmb7g=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -380,6 +382,8 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+github.com/zeebo/errs v1.4.0 h1:XNdoD/RRMKP7HD0UhJnIzUy74ISdGGxURlYG8HSWSfM=
+github.com/zeebo/errs v1.4.0/go.mod h1:sgbWHsvVuTPHcqJJGQ1WhI5KbWlHYz+2+2C/LSEtCw4=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
 go.opentelemetry.io/contrib/detectors/gcp v1.34.0 h1:JRxssobiPg23otYU5SbWtQC//snGVIM3Tx6QRzlQBao=
@@ -600,10 +604,10 @@ google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyac
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
-google.golang.org/grpc v1.71.0 h1:kF77BGdPTQ4/JZWMlb9VpJ5pa25aqvVqogsxNHHdeBg=
-google.golang.org/grpc v1.71.0/go.mod h1:H0GRtasmQOh9LkFoCPDu3ZrwUtD1YGE+b2vYBYd/8Ec=
-google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
-google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/grpc v1.72.2 h1:TdbGzwb82ty4OusHWepvFWGLgIbNo1/SUynEN0ssqv8=
+google.golang.org/grpc v1.72.2/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

go.work

@@ -1,6 +1,4 @@
-go 1.24.5
-
-toolchain go1.24.6
+go 1.25.0
 
 use (
 	.