diff --git a/code-samples/community/serving/helloworld-haskell/Dockerfile b/code-samples/community/serving/helloworld-haskell/Dockerfile
index f4377fb46c..87e87eb043 100644
--- a/code-samples/community/serving/helloworld-haskell/Dockerfile
+++ b/code-samples/community/serving/helloworld-haskell/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official Haskell image to create a build artifact.
 # https://hub.docker.com/_/haskell/
-FROM haskell:8.2.2 as builder
+FROM haskell:8.2.2 AS builder
 
 # Copy local code to the container image.
 WORKDIR /app
diff --git a/code-samples/community/serving/helloworld-java-micronaut/Dockerfile b/code-samples/community/serving/helloworld-java-micronaut/Dockerfile
index 5178a307d5..6ddf7201da 100644
--- a/code-samples/community/serving/helloworld-java-micronaut/Dockerfile
+++ b/code-samples/community/serving/helloworld-java-micronaut/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official maven/Java 8 image to create a build artifact.
 # https://hub.docker.com/_/maven
-FROM maven:3.5-jdk-8-alpine as builder
+FROM maven:3.5-jdk-8-alpine AS builder
 
 # Copy local code to the container image.
 WORKDIR /app
diff --git a/code-samples/community/serving/helloworld-r/Dockerfile b/code-samples/community/serving/helloworld-r/Dockerfile
index 63be93a88a..ad4a9e0ced 100644
--- a/code-samples/community/serving/helloworld-r/Dockerfile
+++ b/code-samples/community/serving/helloworld-r/Dockerfile
@@ -1,18 +1,22 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.12 as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
+# Create and change to the app directory.
+WORKDIR /app
+
 # Copy local code to the container image.
-WORKDIR /go/src/github.com/knative/docs/helloworld-r
-COPY invoke.go .
+COPY . ./
+
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
 
-# Build the command inside the container.
-# (You may fetch or manage dependencies here,
-# either manually or with a tool like "godep".)
+# Build the binary.
+# -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o invoke
 
 # The official R base image
@@ -22,7 +26,7 @@ RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -
 FROM r-base:3.6.0
 
 # Copy Go binary
-COPY --from=builder /go/src/github.com/knative/docs/helloworld-r/invoke /invoke
+COPY --from=builder /app/invoke /invoke
 COPY HelloWorld.R .
 
 # Run the web service on container startup.
diff --git a/code-samples/community/serving/helloworld-r/go.mod b/code-samples/community/serving/helloworld-r/go.mod
new file mode 100644
index 0000000000..5173bae3ad
--- /dev/null
+++ b/code-samples/community/serving/helloworld-r/go.mod
@@ -0,0 +1,3 @@
+module knative.dev/docs/code-samples/community/serving/helloworld-r
+
+go 1.22
diff --git a/code-samples/eventing/helloworld/helloworld-go/Dockerfile b/code-samples/eventing/helloworld/helloworld-go/Dockerfile
index 87e643cc15..74ad184abe 100644
--- a/code-samples/eventing/helloworld/helloworld-go/Dockerfile
+++ b/code-samples/eventing/helloworld/helloworld-go/Dockerfile
@@ -1,7 +1,7 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.14 as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -9,14 +9,12 @@ ARG TARGETARCH
 # Copy local code to the container image.
 WORKDIR /app
 
-# Retrieve application dependencies using go modules.
-# Allows container builds to reuse downloaded dependencies.
-COPY go.* ./
-RUN go mod download
-
 # Copy local code to the container image.
 COPY . ./
 
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
 # Build the binary.
 # -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -mod=readonly  -v -o helloworld
diff --git a/code-samples/eventing/helloworld/helloworld-go/go.mod b/code-samples/eventing/helloworld/helloworld-go/go.mod
index 4b9b0592a9..67694fcb42 100644
--- a/code-samples/eventing/helloworld/helloworld-go/go.mod
+++ b/code-samples/eventing/helloworld/helloworld-go/go.mod
@@ -1,8 +1,17 @@
 module knative.dev/docs/code-samples/eventing/helloworld/helloworld-go
 
-go 1.14
+go 1.22
 
 require (
 	github.com/cloudevents/sdk-go/v2 v2.15.2
-	github.com/google/uuid v1.1.1
+	github.com/google/uuid v1.6.0
+)
+
+require (
+	github.com/json-iterator/go v1.1.10 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
+	go.uber.org/atomic v1.4.0 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
+	go.uber.org/zap v1.10.0 // indirect
 )
diff --git a/code-samples/eventing/helloworld/helloworld-go/go.sum b/code-samples/eventing/helloworld/helloworld-go/go.sum
index bda6282ac9..df533a5b5a 100644
--- a/code-samples/eventing/helloworld/helloworld-go/go.sum
+++ b/code-samples/eventing/helloworld/helloworld-go/go.sum
@@ -1,34 +1,25 @@
 github.com/cloudevents/sdk-go/v2 v2.15.2 h1:54+I5xQEnI73RBhWHxbI1XJcqOFOVJN85vb41+8mHUc=
 github.com/cloudevents/sdk-go/v2 v2.15.2/go.mod h1:lL7kSWAE/V8VI4Wh0jbL2v/jvqsm6tjmaQBSvxcv4uE=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
-github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
@@ -39,14 +30,9 @@ go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac h1:7zkz7BUtwNFFqcowJ+RIgu2MaV/MapERkDIy+mwPyjs=
 golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/code-samples/serving/cloudevents/cloudevents-go/Dockerfile b/code-samples/serving/cloudevents/cloudevents-go/Dockerfile
index 87c4eeff3b..532641b431 100644
--- a/code-samples/serving/cloudevents/cloudevents-go/Dockerfile
+++ b/code-samples/serving/cloudevents/cloudevents-go/Dockerfile
@@ -1,7 +1,7 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.13 as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -12,14 +12,12 @@ WORKDIR /app
 # Copy local code to the container image.
 COPY . ./
 
-# Ensure Go modules are on and create the go.mod and go.sum files.
-# Also builds the binary
-ENV GO111MODULE=on
-RUN go mod init cloudevents.go \
-    && CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o server
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
 
-# Allows the container builds to reuse downloaded dependencies.
-RUN go mod download
+# Build the binary.
+# -mod=readonly ensures immutable go.mod and go.sum in container builds.
+RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o server
 
 # Use the official Alpine image for a lean production container.
 # https://hub.docker.com/_/alpine
diff --git a/code-samples/serving/cloudevents/cloudevents-go/go.mod b/code-samples/serving/cloudevents/cloudevents-go/go.mod
new file mode 100644
index 0000000000..6e34e4ef90
--- /dev/null
+++ b/code-samples/serving/cloudevents/cloudevents-go/go.mod
@@ -0,0 +1,18 @@
+module knative.dev/docs/code-samples/serving/cloudevents/cloudevents-go
+
+go 1.22
+
+require (
+	github.com/cloudevents/sdk-go/v2 v2.15.2
+	github.com/kelseyhightower/envconfig v1.4.0
+)
+
+require (
+	github.com/google/uuid v1.1.1 // indirect
+	github.com/json-iterator/go v1.1.10 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
+	go.uber.org/atomic v1.4.0 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
+	go.uber.org/zap v1.10.0 // indirect
+)
diff --git a/code-samples/serving/cloudevents/cloudevents-go/go.sum b/code-samples/serving/cloudevents/cloudevents-go/go.sum
new file mode 100644
index 0000000000..258108f7e4
--- /dev/null
+++ b/code-samples/serving/cloudevents/cloudevents-go/go.sum
@@ -0,0 +1,40 @@
+github.com/cloudevents/sdk-go/v2 v2.15.2 h1:54+I5xQEnI73RBhWHxbI1XJcqOFOVJN85vb41+8mHUc=
+github.com/cloudevents/sdk-go/v2 v2.15.2/go.mod h1:lL7kSWAE/V8VI4Wh0jbL2v/jvqsm6tjmaQBSvxcv4uE=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
+github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
+github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/kelseyhightower/envconfig v1.4.0 h1:Im6hONhd3pLkfDFsbRgu68RDNkGF1r3dvMUtDTo2cv8=
+github.com/kelseyhightower/envconfig v1.4.0/go.mod h1:cccZRl6mQpaq41TPp5QxidR+Sa3axMbJDNb//FQX6Gg=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
+github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
+go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
+go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
+go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
+go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
+go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
+golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac h1:7zkz7BUtwNFFqcowJ+RIgu2MaV/MapERkDIy+mwPyjs=
+golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/code-samples/serving/gitwebhook-go/Dockerfile b/code-samples/serving/gitwebhook-go/Dockerfile
index 807bae9eb9..54f3bd9ff8 100644
--- a/code-samples/serving/gitwebhook-go/Dockerfile
+++ b/code-samples/serving/gitwebhook-go/Dockerfile
@@ -12,27 +12,27 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang AS builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
-# copy the source
-ADD .   /go/src/github.com/knative/docs/code-samples/serving/gitwebhook-go
-WORKDIR /go/src/github.com/knative/docs/code-samples/serving/gitwebhook-go
+# Create and change to the app directory.
+WORKDIR /app
 
-# install dependencies
-RUN go get github.com/google/go-github/github
-RUN go get golang.org/x/oauth2
-RUN go get gopkg.in/go-playground/webhooks.v3
-RUN go get gopkg.in/go-playground/webhooks.v3/github
+# Copy local code to the container image.
+COPY . ./
 
-# build the sample
-RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -o /go/bin/webhook-sample .
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
+# Build the binary.
+# -mod=readonly ensures immutable go.mod and go.sum in container builds.
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o webhook-sample
 
 FROM golang:alpine
 
 EXPOSE 8080
-COPY --from=builder /go/bin/webhook-sample /app/webhook-sample
+COPY --from=builder /app/webhook-sample /webhook-sample
 
-ENTRYPOINT ["/app/webhook-sample"]
+ENTRYPOINT ["/webhook-sample"]
diff --git a/code-samples/serving/gitwebhook-go/go.mod b/code-samples/serving/gitwebhook-go/go.mod
new file mode 100644
index 0000000000..3ed55cd0db
--- /dev/null
+++ b/code-samples/serving/gitwebhook-go/go.mod
@@ -0,0 +1,14 @@
+module knative.dev/docs/code-samples/serving/gitwebhook-go
+
+go 1.22
+
+require (
+	github.com/google/go-github v17.0.0+incompatible
+	golang.org/x/oauth2 v0.23.0
+	gopkg.in/go-playground/webhooks.v3 v3.13.0
+)
+
+require (
+	github.com/google/go-querystring v1.1.0 // indirect
+	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
+)
diff --git a/code-samples/serving/gitwebhook-go/go.sum b/code-samples/serving/gitwebhook-go/go.sum
new file mode 100644
index 0000000000..eb0ea972b8
--- /dev/null
+++ b/code-samples/serving/gitwebhook-go/go.sum
@@ -0,0 +1,14 @@
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-github v17.0.0+incompatible h1:N0LgJ1j65A7kfXrZnUDaYCs/Sf4rEjNlfyDHW9dolSY=
+github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
+github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
+github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
+golang.org/x/oauth2 v0.23.0 h1:PbgcYx2W7i4LvjJWEbf0ngHV6qJYr86PkAV3bXdLEbs=
+golang.org/x/oauth2 v0.23.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM=
+gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
+gopkg.in/go-playground/webhooks.v3 v3.13.0 h1:DlXB5EbmE5U5TmTunB4noh8Zd2yoA+Ut8eL4B3a/Nxs=
+gopkg.in/go-playground/webhooks.v3 v3.13.0/go.mod h1:Cj2HPFrp1CKClz7kcd+OleRIxPurczUBuONebSiKClw=
diff --git a/code-samples/serving/grpc-ping-go/Dockerfile b/code-samples/serving/grpc-ping-go/Dockerfile
index 3fba178798..47f31de3fa 100644
--- a/code-samples/serving/grpc-ping-go/Dockerfile
+++ b/code-samples/serving/grpc-ping-go/Dockerfile
@@ -15,16 +15,17 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang as builder
+FROM golang AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
+# Create and change to the app directory.
+WORKDIR /app
+
 # Copy local code to the container image.
-WORKDIR /go/src/github.com/knative/docs/code-samples/serving/grpc-ping-go
 COPY . ./
 
-RUN go mod init grpc-ping-go
 RUN go mod tidy
 
 # Build the command inside the container.
@@ -38,8 +39,8 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -tags=grpcping
 FROM gcr.io/distroless/static
 
 # Copy the binaries to the production image from the builder stage.
-COPY --from=builder /go/src/github.com/knative/docs/code-samples/serving/grpc-ping-go/ping-server /server
-COPY --from=builder /go/src/github.com/knative/docs/code-samples/serving/grpc-ping-go/ping-client /client
+COPY --from=builder /app/ping-server /server
+COPY --from=builder /app/ping-client /client
 
 # Run the service on container startup.
 CMD ["/server"]
diff --git a/code-samples/serving/grpc-ping-go/go.mod b/code-samples/serving/grpc-ping-go/go.mod
new file mode 100644
index 0000000000..c02a20ef76
--- /dev/null
+++ b/code-samples/serving/grpc-ping-go/go.mod
@@ -0,0 +1,16 @@
+module github.com/knative/docs/code-samples/serving/grpc-ping-go
+
+go 1.22.2
+
+require (
+	github.com/golang/protobuf v1.5.4
+	golang.org/x/net v0.29.0
+	google.golang.org/grpc v1.66.2
+)
+
+require (
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+)
diff --git a/code-samples/serving/grpc-ping-go/go.sum b/code-samples/serving/grpc-ping-go/go.sum
new file mode 100644
index 0000000000..05856163c4
--- /dev/null
+++ b/code-samples/serving/grpc-ping-go/go.sum
@@ -0,0 +1,16 @@
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+golang.org/x/net v0.29.0 h1:5ORfpBpCs4HzDYoodCDBbwHzdR5UrLBZ3sOnUJmFoHo=
+golang.org/x/net v0.29.0/go.mod h1:gLkgy8jTGERgjzMic6DS9+SP0ajcu6Xu3Orq/SpETg0=
+golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
+golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224=
+golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 h1:1GBuWVLM/KMVUv1t1En5Gs+gFZCNd360GGb4sSxtrhU=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117/go.mod h1:EfXuqaE1J41VCDicxHzUDm+8rk+7ZdXzHV0IhO/I6s0=
+google.golang.org/grpc v1.66.2 h1:3QdXkuq3Bkh7w+ywLdLvM56cmGvQHUMZpiCzt6Rqaoo=
+google.golang.org/grpc v1.66.2/go.mod h1:s3/l6xSSCURdVfAnL+TqCNMyTDAGN6+lZeVxnZR128Y=
+google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
diff --git a/code-samples/serving/hello-world/helloworld-go/Dockerfile b/code-samples/serving/hello-world/helloworld-go/Dockerfile
index 4de3b9eec9..6774672450 100644
--- a/code-samples/serving/hello-world/helloworld-go/Dockerfile
+++ b/code-samples/serving/hello-world/helloworld-go/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
-FROM golang:latest as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -8,14 +8,12 @@ ARG TARGETARCH
 # Create and change to the app directory.
 WORKDIR /app
 
-# Retrieve application dependencies using go modules.
-# Allows container builds to reuse downloaded dependencies.
-COPY go.* ./
-RUN go mod download
-
 # Copy local code to the container image.
 COPY . ./
 
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
 # Build the binary.
 # -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -mod=readonly -v -o server
diff --git a/code-samples/serving/hello-world/helloworld-go/README.md b/code-samples/serving/hello-world/helloworld-go/README.md
index fe7f37388e..84d82b5828 100644
--- a/code-samples/serving/hello-world/helloworld-go/README.md
+++ b/code-samples/serving/hello-world/helloworld-go/README.md
@@ -65,7 +65,7 @@ Navigate to your project directory and copy the following code into a new file n
 ```dockerfile
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
-FROM golang:latest as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -73,14 +73,12 @@ ARG TARGETARCH
 # Create and change to the app directory.
 WORKDIR /app
 
-# Retrieve application dependencies using go modules.
-# Allows container builds to reuse downloaded dependencies.
-COPY go.* ./
-RUN go mod download
-
 # Copy local code to the container image.
 COPY . ./
 
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
 # Build the binary.
 # -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -mod=readonly -v -o server
diff --git a/code-samples/serving/hello-world/helloworld-java-spark/Dockerfile b/code-samples/serving/hello-world/helloworld-java-spark/Dockerfile
index 3d31391f38..e12cc601a4 100644
--- a/code-samples/serving/hello-world/helloworld-java-spark/Dockerfile
+++ b/code-samples/serving/hello-world/helloworld-java-spark/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official maven/Java 8 image to create a build artifact.
 # https://hub.docker.com/_/maven
-FROM maven:3.5-jdk-8-alpine as builder
+FROM maven:3.5-jdk-8-alpine AS builder
 
 # Copy local code to the container image.
 WORKDIR /app
diff --git a/code-samples/serving/hello-world/helloworld-java-spring/Dockerfile b/code-samples/serving/hello-world/helloworld-java-spring/Dockerfile
index 35300394b6..bdf29d827a 100644
--- a/code-samples/serving/hello-world/helloworld-java-spring/Dockerfile
+++ b/code-samples/serving/hello-world/helloworld-java-spring/Dockerfile
@@ -1,5 +1,5 @@
 # Use the official maven/Java 8 image to create a build artifact: https://hub.docker.com/_/maven
-FROM maven:3.5-jdk-8-alpine as builder
+FROM maven:3.5-jdk-8-alpine AS builder
 
 # Copy local code to the container image.
 WORKDIR /app
diff --git a/code-samples/serving/hello-world/helloworld-java-spring/README.md b/code-samples/serving/hello-world/helloworld-java-spring/README.md
index eaf8ba3e71..d1f837c0fd 100644
--- a/code-samples/serving/hello-world/helloworld-java-spring/README.md
+++ b/code-samples/serving/hello-world/helloworld-java-spring/README.md
@@ -84,7 +84,7 @@ cd knative-docs/code-samples/serving/hello-world/helloworld-java-spring
 
     ```docker
     # Use the official maven/Java 8 image to create a build artifact: https://hub.docker.com/_/maven
-    FROM maven:3.5-jdk-8-alpine as builder
+    FROM maven:3.5-jdk-8-alpine AS builder
 
     # Copy local code to the container image.
     WORKDIR /app
diff --git a/code-samples/serving/hello-world/helloworld-kotlin/Dockerfile b/code-samples/serving/hello-world/helloworld-kotlin/Dockerfile
index c29fb3e8b1..7164d394c2 100644
--- a/code-samples/serving/hello-world/helloworld-kotlin/Dockerfile
+++ b/code-samples/serving/hello-world/helloworld-kotlin/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official gradle image to create a build artifact.
 # https://hub.docker.com/_/gradle
-FROM gradle:6.7 as builder
+FROM gradle:6.7 AS builder
 
 # Copy local code to the container image.
 COPY build.gradle .
diff --git a/code-samples/serving/hello-world/helloworld-kotlin/README.md b/code-samples/serving/hello-world/helloworld-kotlin/README.md
index 10d6551774..64f9e69c59 100644
--- a/code-samples/serving/hello-world/helloworld-kotlin/README.md
+++ b/code-samples/serving/hello-world/helloworld-kotlin/README.md
@@ -92,7 +92,7 @@ cd knative-docs/code-samples/serving/hello-world/helloworld-kotlin
    ```docker
    # Use the official gradle image to create a build artifact.
    # https://hub.docker.com/_/gradle
-   FROM gradle:6.7 as builder
+   FROM gradle:6.7 AS builder
 
    # Copy local code to the container image.
    COPY build.gradle .
diff --git a/code-samples/serving/hello-world/helloworld-scala/Dockerfile b/code-samples/serving/hello-world/helloworld-scala/Dockerfile
index c73e3a2544..bca714a083 100644
--- a/code-samples/serving/hello-world/helloworld-scala/Dockerfile
+++ b/code-samples/serving/hello-world/helloworld-scala/Dockerfile
@@ -1,5 +1,5 @@
 # Use an SBT image matching the Scala and JDK version.
-FROM hseeberger/scala-sbt:8u265_1.4.2_2.13.3 as builder
+FROM hseeberger/scala-sbt:8u265_1.4.2_2.13.3 AS builder
 
 # Copy local code to the container image.
 WORKDIR /app
diff --git a/code-samples/serving/knative-routing-go/Dockerfile b/code-samples/serving/knative-routing-go/Dockerfile
index 2deb314781..14ecf5188c 100644
--- a/code-samples/serving/knative-routing-go/Dockerfile
+++ b/code-samples/serving/knative-routing-go/Dockerfile
@@ -12,19 +12,27 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang AS builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
-WORKDIR /go/src/github.com/knative/docs/
-ADD . /go/src/github.com/knative/docs/
+# Create and change to the app directory.
+WORKDIR /app
 
-RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build ./code-samples/serving/knative-routing-go/
+# Copy local code to the container image.
+COPY . ./
+
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
+# Build the binary.
+# -mod=readonly ensures immutable go.mod and go.sum in container builds.
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o sample
 
 FROM gcr.io/distroless/base
 
 EXPOSE 8080
-COPY --from=builder /go/src/github.com/knative/docs/knative-routing-go /sample
+COPY --from=builder /app/sample /sample
 
 ENTRYPOINT ["/sample"]
diff --git a/code-samples/serving/knative-routing-go/go.mod b/code-samples/serving/knative-routing-go/go.mod
new file mode 100644
index 0000000000..61b1cd9cd2
--- /dev/null
+++ b/code-samples/serving/knative-routing-go/go.mod
@@ -0,0 +1,3 @@
+module knative.dev/docs/code-samples/serving/knative-routing-go
+
+go 1.22
diff --git a/code-samples/serving/kong-routing-go/Dockerfile b/code-samples/serving/kong-routing-go/Dockerfile
index ee41b299f5..4b4428991d 100644
--- a/code-samples/serving/kong-routing-go/Dockerfile
+++ b/code-samples/serving/kong-routing-go/Dockerfile
@@ -12,19 +12,27 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang AS builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
-WORKDIR /go/src/github.com/knative/docs/
-ADD . /go/src/github.com/knative/docs/
+# Create and change to the app directory.
+WORKDIR /app
 
-RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build ./code-samples/serving/kong-routing-go/
+# Copy local code to the container image.
+COPY . ./
+
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
+# Build the binary.
+# -mod=readonly ensures immutable go.mod and go.sum in container builds.
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o sample
 
 FROM gcr.io/distroless/base
 
 EXPOSE 8080
-COPY --from=builder /go/src/github.com/knative/docs/kong-routing-go /sample
+COPY --from=builder /app/sample /sample
 
 ENTRYPOINT ["/sample"]
diff --git a/code-samples/serving/kong-routing-go/go.mod b/code-samples/serving/kong-routing-go/go.mod
new file mode 100644
index 0000000000..d58c1ceee9
--- /dev/null
+++ b/code-samples/serving/kong-routing-go/go.mod
@@ -0,0 +1,3 @@
+module knative.dev/docs/code-samples/serving/kong-routing-go
+
+go 1.22
diff --git a/code-samples/serving/multi-container/servingcontainer/Dockerfile b/code-samples/serving/multi-container/servingcontainer/Dockerfile
index 89d9d1c6e6..bb5139bb93 100644
--- a/code-samples/serving/multi-container/servingcontainer/Dockerfile
+++ b/code-samples/serving/multi-container/servingcontainer/Dockerfile
@@ -1,7 +1,7 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.15 as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -9,14 +9,12 @@ ARG TARGETARCH
 # Create and change to the app directory.
 WORKDIR /app
 
-# Retrieve application dependencies using go modules.
-# Allows container builds to reuse downloaded dependencies.
-COPY go.* ./
-RUN go mod download
-
 # Copy local code to the container image.
 COPY . ./
 
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
 # Build the binary.
 # -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -mod=readonly -v -o servingcontainer
diff --git a/code-samples/serving/multi-container/servingcontainer/go.mod b/code-samples/serving/multi-container/servingcontainer/go.mod
index 8ec825cae3..bec44ea553 100644
--- a/code-samples/serving/multi-container/servingcontainer/go.mod
+++ b/code-samples/serving/multi-container/servingcontainer/go.mod
@@ -1,3 +1,3 @@
 module github.com/knative/docs/code-samples/serving/multi-container/servingcontainer
 
-go 1.15
+go 1.22
diff --git a/code-samples/serving/multi-container/sidecarcontainer/Dockerfile b/code-samples/serving/multi-container/sidecarcontainer/Dockerfile
index a26b29461d..597714478c 100644
--- a/code-samples/serving/multi-container/sidecarcontainer/Dockerfile
+++ b/code-samples/serving/multi-container/sidecarcontainer/Dockerfile
@@ -1,7 +1,7 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang:1.15 as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -9,14 +9,12 @@ ARG TARGETARCH
 # Create and change to the app directory.
 WORKDIR /app
 
-# Retrieve application dependencies using go modules.
-# Allows container builds to reuse downloaded dependencies.
-COPY go.* ./
-RUN go mod download
-
 # Copy local code to the container image.
 COPY . ./
 
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
+
 # Build the binary.
 # -mod=readonly ensures immutable go.mod and go.sum in container builds.
 RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -mod=readonly -v -o sidecarcontainer
diff --git a/code-samples/serving/multi-container/sidecarcontainer/go.mod b/code-samples/serving/multi-container/sidecarcontainer/go.mod
index 6746b2c51e..c80d051b4e 100644
--- a/code-samples/serving/multi-container/sidecarcontainer/go.mod
+++ b/code-samples/serving/multi-container/sidecarcontainer/go.mod
@@ -1,3 +1,3 @@
 module github.com/knative/docs/code-samples/serving/multi-container/sidecarcontainer
 
-go 1.15
+go 1.22
diff --git a/code-samples/serving/secrets-go/Dockerfile b/code-samples/serving/secrets-go/Dockerfile
index 3f1d286ff5..513049996b 100644
--- a/code-samples/serving/secrets-go/Dockerfile
+++ b/code-samples/serving/secrets-go/Dockerfile
@@ -1,14 +1,19 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
 # https://hub.docker.com/_/golang
-FROM golang as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
 
+# Create and change to the app directory.
+WORKDIR /app
+
 # Copy local code to the container image.
-WORKDIR /go/src/github.com/knative/docs/hellosecrets
-COPY . .
+COPY . ./
+
+# Install dependencies and tidy up the go.mod and go.sum files.
+RUN go mod tidy
 
 # Build the output command inside the container.
 RUN CGO_ENABLED=0 GOOS=linux GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -v -o hellosecrets
@@ -21,7 +26,7 @@ FROM alpine
 RUN apk add --no-cache ca-certificates
 
 # Copy the binary to the production image from the builder stage.
-COPY --from=builder /go/src/github.com/knative/docs/hellosecrets/hellosecrets /hellosecrets
+COPY --from=builder /app/hellosecrets /hellosecrets
 
 # Run the web service on container startup.
 CMD ["/hellosecrets"]
diff --git a/code-samples/serving/secrets-go/go.mod b/code-samples/serving/secrets-go/go.mod
new file mode 100644
index 0000000000..ce28016371
--- /dev/null
+++ b/code-samples/serving/secrets-go/go.mod
@@ -0,0 +1,41 @@
+module knative.dev/docs/code-samples/serving/secrets-go
+
+go 1.22
+
+require cloud.google.com/go/storage v1.43.0
+
+require (
+	cloud.google.com/go v0.115.0 // indirect
+	cloud.google.com/go/auth v0.6.1 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.2 // indirect
+	cloud.google.com/go/compute/metadata v0.3.0 // indirect
+	cloud.google.com/go/iam v1.1.8 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
+	github.com/googleapis/gax-go/v2 v2.12.5 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.49.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
+	golang.org/x/crypto v0.24.0 // indirect
+	golang.org/x/net v0.26.0 // indirect
+	golang.org/x/oauth2 v0.21.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	google.golang.org/api v0.187.0 // indirect
+	google.golang.org/genproto v0.0.0-20240624140628-dc46fd24d27d // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240617180043-68d350f18fd4 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240624140628-dc46fd24d27d // indirect
+	google.golang.org/grpc v1.64.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
+)
diff --git a/code-samples/serving/secrets-go/go.sum b/code-samples/serving/secrets-go/go.sum
new file mode 100644
index 0000000000..1a781d90a0
--- /dev/null
+++ b/code-samples/serving/secrets-go/go.sum
@@ -0,0 +1,172 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.115.0 h1:CnFSK6Xo3lDYRoBKEcAtia6VSC837/ZkJuRduSFnr14=
+cloud.google.com/go v0.115.0/go.mod h1:8jIM5vVgoAEoiVxQ/O4BFTfHqulPZgs/ufEzMcFMdWU=
+cloud.google.com/go/auth v0.6.1 h1:T0Zw1XM5c1GlpN2HYr2s+m3vr1p2wy+8VN+Z1FKxW38=
+cloud.google.com/go/auth v0.6.1/go.mod h1:eFHG7zDzbXHKmjJddFG/rBlcGp6t25SwRUiEQSlO4x4=
+cloud.google.com/go/auth/oauth2adapt v0.2.2 h1:+TTV8aXpjeChS9M+aTtN/TjdQnzJvmzKFt//oWu7HX4=
+cloud.google.com/go/auth/oauth2adapt v0.2.2/go.mod h1:wcYjgpZI9+Yu7LyYBg4pqSiaRkfEK3GQcpb7C/uyF1Q=
+cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc=
+cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
+cloud.google.com/go/iam v1.1.8 h1:r7umDwhj+BQyz0ScZMp4QrGXjSTI3ZINnpgU2nlB/K0=
+cloud.google.com/go/iam v1.1.8/go.mod h1:GvE6lyMmfxXauzNq8NbgJbeVQNspG+tcdL/W8QO1+zE=
+cloud.google.com/go/longrunning v0.5.7 h1:WLbHekDbjK1fVFD3ibpFFVoyizlLRl73I7YKuAKilhU=
+cloud.google.com/go/longrunning v0.5.7/go.mod h1:8GClkudohy1Fxm3owmBGid8W0pSgodEMwEAztp38Xng=
+cloud.google.com/go/storage v1.43.0 h1:CcxnSohZwizt4LCzQHWvBf1/kvtHUn7gk9QERXPyXFs=
+cloud.google.com/go/storage v1.43.0/go.mod h1:ajvxEa7WmZS1PxvKRq4bq0tFT3vMd502JwstCcYv0Q0=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
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+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
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diff --git a/code-samples/serving/websockets-go/Dockerfile b/code-samples/serving/websockets-go/Dockerfile
index e2ae091ba8..d5842feee4 100644
--- a/code-samples/serving/websockets-go/Dockerfile
+++ b/code-samples/serving/websockets-go/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official Golang image to create a build artifact.
 # This is based on Debian and sets the GOPATH to /go.
-FROM golang:latest as builder
+FROM golang:latest AS builder
 
 ARG TARGETOS
 ARG TARGETARCH
@@ -8,9 +8,6 @@ ARG TARGETARCH
 # Create and change to the app directory.
 WORKDIR /app
 
-# Initialize the Go module inside the Dockerfile.
-RUN go mod init mymodule
-
 # Copy local code to the container image.
 COPY . ./