diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml new file mode 100644 index 0000000..aeb876b --- /dev/null +++ b/.github/workflows/ci.yaml @@ -0,0 +1,39 @@ +name: CI + +on: + push: + branches: [main] + pull_request: + release: + types: [published] + + +jobs: + get-projects: + runs-on: ubuntu-latest + outputs: + projects: ${{ steps.list-projects.outputs.projects }} + steps: + - name: Checkout repository + uses: actions/checkout@v3 + + - name: Get list of Golang project folders + id: list-projects + run: | + set -eux + PROJECTS_JSON=$(find ./golang -maxdepth 1 -mindepth 1 -type d | sed 's|^\./||' | jq -c -R . | jq -s -c .) + echo "projects=$PROJECTS_JSON" >> $GITHUB_OUTPUT + + - name: Display JSON output + run: 'echo "Projects: ${{ steps.list-projects.outputs.projects }}"' + + run-jobs: + needs: + - get-projects + strategy: + matrix: + project: ${{ fromJson(needs.get-projects.outputs.projects) }} + uses: ./.github/workflows/golang.yaml + with: + project: ${{ matrix.project }} + secrets: inherit \ No newline at end of file diff --git a/.github/workflows/golang.yaml b/.github/workflows/golang.yaml new file mode 100644 index 0000000..34301f4 --- /dev/null +++ b/.github/workflows/golang.yaml @@ -0,0 +1,88 @@ +name: Golang Projects + +on: + workflow_call: + inputs: + project: + required: true + type: string + +jobs: + lint: + name: lint + runs-on: ubuntu-latest + steps: + - name: Set up Go + uses: actions/setup-go@v4 + with: + go-version: '1.22.3' + - name: Check out code + uses: actions/checkout@v3 + - name: Check formatting + working-directory: ${{ inputs.project }} + run: | + test -z $(gofmt -l .) + + build-and-test: + runs-on: ubuntu-latest + + steps: + - uses: actions/checkout@v4 + - name: Setup Go + uses: actions/setup-go@v5 + with: + go-version: '1.22.3' + - name: Install dependencies + working-directory: ${{ inputs.project }} + run: go get ./src + - name: Build + working-directory: ${{ inputs.project }} + run: go build -o ./dist/bin ./src + - name: Test with the Go CLI + working-directory: ${{ inputs.project }} + run: go test ./src + + build-and-publish-image: + runs-on: ubuntu-latest + needs: + - lint + - build-and-test + + steps: + - uses: actions/checkout@v3 + - name: Set up QEMU + uses: docker/setup-qemu-action@v3 + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v2 + - name: Tag the image + id: meta + uses: docker/metadata-action@v4 + with: + images: | + bitovi/temporal-example-workers + tags: | + type=raw,value=golang-${{ inputs.project }}-latest,enable=${{ github.ref_name == 'main' }} + type=semver,pattern=golang-${{ inputs.project }}-{{version}},enable=${{ github.event_name == 'release' }} + - + name: Login to Docker Hub + uses: docker/login-action@v2 + if: github.event_name != 'pull_request' + with: + username: ${{ secrets.DOCKERHUB_USERNAME }} + password: ${{ secrets.DOCKERHUB_PASSWORD }} + - + name: Build Docker image + uses: docker/build-push-action@v4 + with: + context: ${{ inputs.project }} + platforms: linux/amd64,linux/arm64 + tags: ${{ steps.meta.outputs.tags }} + - + name: Push Docker image + uses: docker/build-push-action@v4 + if: ${{ (github.ref_name == 'main') || (github.event_name == 'release') }} + with: + context: ${{ inputs.project }} + platforms: linux/amd64,linux/arm64 + tags: ${{ steps.meta.outputs.tags }} + push: true \ No newline at end of file diff --git a/LISCENCE b/LISCENCE new file mode 100644 index 0000000..ebd30f8 --- /dev/null +++ b/LISCENCE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2024 Bitovi + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..bd4c29d --- /dev/null +++ b/README.md @@ -0,0 +1,7 @@ +# Temporal Worker Examples + +This repo holds examples of Temporal workflows in various languages. + +## Golang + +- [__Hello World__](./golang/hello-world/) diff --git a/golang/hello-world/.air.toml b/golang/hello-world/.air.toml new file mode 100644 index 0000000..a5903cc --- /dev/null +++ b/golang/hello-world/.air.toml @@ -0,0 +1,18 @@ +root = "." +tmp_dir = "tmp" + +[build] +cmd = "go build -o ./tmp/worker worker.go" +bin = "tmp/app" + +full_bin = "./tmp/worker" +log = "air_errors.log" +include_ext = ["go"] +exclude_dir = ["tmp"] +delay = 1000 + +[log] +time = true + +[misc] +clean_on_exit = true \ No newline at end of file diff --git a/golang/hello-world/Dockerfile b/golang/hello-world/Dockerfile new file mode 100644 index 0000000..79d9dac --- /dev/null +++ b/golang/hello-world/Dockerfile @@ -0,0 +1,13 @@ +FROM golang:1.22.3 + +WORKDIR /app + +COPY go.mod go.sum ./ + +RUN go mod download + +COPY src/*.go ./ + +RUN CGO_ENABLED=0 GOOS=linux go build -o ./temporal-cloud-autoscaler + +CMD ["./temporal-cloud-autoscaler", "--secure-port=6443", "--cert-dir=/var/run/serving-cert", "--v=10"] \ No newline at end of file diff --git a/golang/hello-world/Dockerfile.dev b/golang/hello-world/Dockerfile.dev new file mode 100644 index 0000000..1bb40af --- /dev/null +++ b/golang/hello-world/Dockerfile.dev @@ -0,0 +1,13 @@ +# Please keep up to date with the new-version of Golang docker for builder +FROM golang:1.22.3-bookworm + +RUN apt update && apt upgrade -y && \ + apt install -y git \ + make openssh-client + +WORKDIR /app + +RUN curl -fLo install.sh https://raw.githubusercontent.com/cosmtrek/air/master/install.sh \ + && chmod +x install.sh && sh install.sh && cp ./bin/air /bin/air + +CMD air \ No newline at end of file diff --git a/golang/hello-world/README.md b/golang/hello-world/README.md new file mode 100644 index 0000000..6ab3c93 --- /dev/null +++ b/golang/hello-world/README.md @@ -0,0 +1,23 @@ +# Temporal Golang Hello World Worker + +This worker simply waits 30 seconds and then returns a string of Hello World. The activity concurrency is set to 1, and the workflow concurrency is set to 2 (this is the minimum value for the [Golang SDK](https://github.com/temporalio/sdk-go/blob/9c422211a412a6a194ecda548f21790ddc66d988/internal/internal_worker.go#L1520-L1526)). + +This example is designed to emulate a resource intensive workflow where only a small number of tasks can run on a given worker, and those tasks take a relatively long time to complete. + +## Usage + +__Startup__ + +```bash +docker compose up -d --build +``` + +__Execution__ + +```bash +temporal workflow start \ + --task-queue=hello-world \ + --type=Workflow \ + --address=localhost:7233 \ + --namespace=default +``` \ No newline at end of file diff --git a/golang/hello-world/docker-compose.yaml b/golang/hello-world/docker-compose.yaml new file mode 100644 index 0000000..dc8e3db --- /dev/null +++ b/golang/hello-world/docker-compose.yaml @@ -0,0 +1,37 @@ +services: + temporal-dev-server: + container_name: temporal-dev-server + image: debian:buster + command: > + bash -c '\ + apt update && \ + apt install -y curl && \ + curl -sSf https://temporal.download/cli.sh | sh && \ + PATH="\$PATH:/root/.temporalio/bin" >> ~/.bashrc && \ + source ~/.bashrc && \ + temporal server start-dev --namespace default --ip 0.0.0.0 + ' + ports: + - 7233:7233 + - 8233:8233 + healthcheck: + test: ["CMD-SHELL", "curl --fail http://localhost:8233/ || exit 1"] + interval: 10s + timeout: 30s + retries: 3 + + worker: + container_name: temporal-worker + build: + context: . + dockerfile: Dockerfile.dev + depends_on: + temporal-dev-server: + condition: service_healthy + restart: always + environment: + - TEMPORAL_PORT=temporal-dev-server:7233 + - TEMPORAL_NAMESPACE=default + - TEMPORAL_QUEUE=hello-world + volumes: + - ./:/app \ No newline at end of file diff --git a/golang/hello-world/go.mod b/golang/hello-world/go.mod new file mode 100644 index 0000000..012159e --- /dev/null +++ b/golang/hello-world/go.mod @@ -0,0 +1,31 @@ +module temporal-cloud-autoscaler-demo + +go 1.22.1 + +require go.temporal.io/sdk v1.26.1 + +require ( + github.com/davecgh/go-spew v1.1.1 // indirect + github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/golang/mock v1.6.0 // indirect + github.com/google/uuid v1.6.0 // indirect + github.com/grpc-ecosystem/go-grpc-middleware v1.3.0 // indirect + github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1 // indirect + github.com/pborman/uuid v1.2.1 // indirect + github.com/pmezard/go-difflib v1.0.0 // indirect + github.com/robfig/cron v1.2.0 // indirect + github.com/stretchr/objx v0.5.2 // indirect + github.com/stretchr/testify v1.9.0 // indirect + go.temporal.io/api v1.32.0 // indirect + golang.org/x/exp v0.0.0-20231127185646-65229373498e // indirect + golang.org/x/net v0.24.0 // indirect + golang.org/x/sys v0.19.0 // indirect + golang.org/x/text v0.14.0 // indirect + golang.org/x/time v0.3.0 // indirect + google.golang.org/genproto/googleapis/api v0.0.0-20240401170217-c3f982113cda // indirect + google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect + google.golang.org/grpc v1.63.2 // indirect + google.golang.org/protobuf v1.33.0 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/golang/hello-world/go.sum b/golang/hello-world/go.sum new file mode 100644 index 0000000..8de907a --- /dev/null +++ b/golang/hello-world/go.sum @@ -0,0 +1,150 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= 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h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/golang/hello-world/src/worker.go b/golang/hello-world/src/worker.go new file mode 100644 index 0000000..338d787 --- /dev/null +++ b/golang/hello-world/src/worker.go @@ -0,0 +1,104 @@ +package main + +import ( + "context" + "crypto/tls" + "log" + "os" + "time" + + "go.temporal.io/sdk/activity" + "go.temporal.io/sdk/client" + "go.temporal.io/sdk/worker" + "go.temporal.io/sdk/workflow" +) + +func CreateTemporalClient() (client.Client, error) { + port := os.Getenv("TEMPORAL_PORT") + namespace := os.Getenv("TEMPORAL_NAMESPACE") + certPath := os.Getenv("TEMPORAL_CERT_PATH") + keyPath := os.Getenv("TEMPORAL_KEY_PATH") + + var connectionOptions client.ConnectionOptions + + if len(certPath) > 0 && len(keyPath) > 0 { + certificate, err := tls.LoadX509KeyPair(certPath, keyPath) + if err != nil { + log.Fatalln("Unable to load cert and key pair.", err) + return nil, err + } + connectionOptions = client.ConnectionOptions{ + TLS: &tls.Config{ + Certificates: []tls.Certificate{certificate}, + }, + } + } + + temporalClient, err := client.Dial(client.Options{ + HostPort: port, + Namespace: namespace, + ConnectionOptions: connectionOptions, + }) + + if err != nil { + log.Fatalln("Unable to create client", err) + return nil, err + } + + return temporalClient, nil +} + +func Activity(ctx context.Context, workflowId string) (string, error) { + logger := activity.GetLogger(ctx) + logger.Info("Running Activity for", workflowId) + + time.Sleep(time.Second * 30) + + logger.Info("Ran Activity for", workflowId) + + return "Hello World!", nil +} + +func Workflow(ctx workflow.Context) (string, error) { + activityContext := workflow.WithActivityOptions(ctx, workflow.ActivityOptions{ + StartToCloseTimeout: 60 * time.Minute, + }) + workflowId := workflow.GetInfo(ctx).WorkflowExecution.ID + logger := workflow.GetLogger(ctx) + logger.Info("Running Workflow for", workflowId) + + var result string + err := workflow.ExecuteActivity(activityContext, Activity, workflowId).Get(ctx, &result) + if err != nil { + logger.Error("SaveRequest failed:", err) + return "", err + } + + return result, nil +} + +func main() { + taskQueueName := os.Getenv("TEMPORAL_QUEUE") + temporalClient, err := CreateTemporalClient() + + if err != nil { + log.Fatalln("Unable to create client!", err) + } + defer temporalClient.Close() + + workerOptions := worker.Options{ + OnFatalError: func(err error) { + log.Println("Worker crashed:", err) + }, + MaxConcurrentActivityExecutionSize: 1, + MaxConcurrentWorkflowTaskExecutionSize: 2, + } + workerInstance := worker.New(temporalClient, taskQueueName, workerOptions) + workerInstance.RegisterWorkflow(Workflow) + workerInstance.RegisterActivity(Activity) + + err = workerInstance.Run(worker.InterruptCh()) + if err != nil { + log.Fatalln("unable to start Worker", err) + } +} diff --git a/golang/hello-world/src/worker_test.go b/golang/hello-world/src/worker_test.go new file mode 100644 index 0000000..6b142e9 --- /dev/null +++ b/golang/hello-world/src/worker_test.go @@ -0,0 +1,25 @@ +package main + +import ( + "github.com/stretchr/testify/suite" + "go.temporal.io/sdk/testsuite" +) + +type UnitTestSuite struct { + suite.Suite + testsuite.WorkflowTestSuite + + env *testsuite.TestWorkflowEnvironment +} + +func (s *UnitTestSuite) Test_SimpleWorkflow_Success() { + s.env.ExecuteWorkflow(Workflow, "test_success") + + s.True(s.env.IsWorkflowCompleted()) + s.NoError(s.env.GetWorkflowError()) + + var value string + s.env.GetWorkflowResult(&value) + + s.Equal("Hello World!", value) +}