feat add support for different s3 providers

Change regarding #122

config/crd/bases/gatling-operator.tech.zozo.com_gatlings.yaml

@@ -176,7 +176,7 @@ spec:
                     type: array
                   provider:
                     description: '(Required) Provider specifies the cloud provider
-                      that will be used. Supported providers: `aws`, `gcp`, and `azure`'
+                      that will be used. Supported providers: `aws`, `s3`, `gcp`, and `azure`'
                     type: string
                   region:
                     description: (Optional) Region Name.

docs/user-guide.md

@@ -22,6 +22,7 @@
 			- [Parallel Number of Gatling Load Testing](#parallel-number-of-gatling-load-testing)
 		- [Configure Cloud Storage Provider](#configure-cloud-storage-provider)
 			- [Set Amazon S3 as Cloud Storage](#set-amazon-s3-as-cloud-storage)
+			- [Set Different from Amazon S3 Provider as Cloud Storage](#set-different-from-amazon-s3-provider-as-cloud-storage)
 			- [Set Google Cloud Storage as Cloud Storage](#set-google-cloud-storage-as-cloud-storage)
 			- [Set Azure Blob Storage as Cloud Storage](#set-azure-blob-storage-as-cloud-storage)
 		- [Configure Notification Service Provider](#configure-notification-service-provider)
@@ -657,6 +658,60 @@ Here is an IAM policy to attach for Gatling Pod to interact with Amazon S3 bucke
 - Replace `BUCKET_NAME` above with your bucket name
 - To know more about the ways to supply rclone with a set of AWS credentials, please check [this](https://rclone.org/s3/#configuration).
 
+#### Set Different from Amazon S3 Provider as Cloud Storage
+
+This section provides guidance on setting up any cloud storage provider that supports the S3 API.
+In this example suppose you want to store Gatling reports to a bucket named `gatling-operator-reports` in OHV's S3 provider, specifically in the `de` region. 
+You configure each fields in `.spec.cloudStorageSpec` and set `RCLONE_S3_ENDPOINT` env like this:
+
+```yaml
+apiVersion: gatling-operator.tech.zozo.com/v1alpha1
+kind: Gatling
+metadata:
+  name: gatling-sample
+spec:
+  cloudStorageSpec:
+    provider: "s3"
+    bucket: "gatling-operator-reports"
+    region: "de"
+    env:
+      - name: RCLONE_S3_ENDPOINT
+        value: https://s3.de.io.cloud.ovh.net
+...omit...
+```
+
+However, this is not enough. You must supply Gatling Pod (both Gatling Runner Pod and Gatling Reporter Pod) with credentials to access S3 bucket. Strictly speaking, [rclone](https://rclone.org/) container in Gatling Pod interacts with S3 bucket, thus you need to supply rclone with credentials.
+
+Below is shown how to set S3 credentials via environment variables:
+
+```yaml
+...omit...
+  cloudStorageSpec:
+    provider: "s3"
+    bucket: "gatling-operator-reports"
+    region: "de"
+    env:
+      - name: RCLONE_S3_PROVIDER
+        value: Other
+      - name: RCLONE_S3_ACCESS_KEY_ID
+        valueFrom:
+          secretKeyRef:
+            name: s3-keys
+            key: S3_ACCESS_KEY
+      - name: RCLONE_S3_SECRET_ACCESS_KEY
+        valueFrom:
+        secretKeyRef:
+          name: s3-keys
+          key: S3_SECRET_ACCESS
+      - name: RCLONE_S3_ENDPOINT
+        value: https://s3.de.io.cloud.ovh.net
+      - name: RCLONE_S3_REGION
+        value: de
+...omit...
+```
+
+There are multiple ways to authenticate for more please check [this](https://rclone.org/s3/#configuration).
+
 #### Set Google Cloud Storage as Cloud Storage
 
 Suppose that you want to store Gatling reports to a bucket named `gatling-operator-reports` of Google Cloud Storage, you configure each fields in `.spec.cloudStorageSpec` like this:

pkg/cloudstorages/cloudstorage.go

@@ -27,7 +27,9 @@ func GetProvider(provider string, args ...EnvVars) *CloudStorageProvider {
 		var csp CloudStorageProvider
 		switch provider {
 		case "aws":
-			csp = &AWSCloudStorageProvider{providerName: provider}
+			csp = &S3CloudStorageProvider{providerName: provider}
+		case "s3":
+			csp = &S3CloudStorageProvider{providerName: provider}
 		case "gcp":
 			csp = &GCPCloudStorageProvider{providerName: provider}
 		case "azure":

pkg/cloudstorages/cloudstorage_test.go

@@ -15,7 +15,7 @@ var _ = Describe("GetProvider", func() {
 			provider = "aws"
 			expectedValue = "aws"
 		})
-		It("should get a pointer of AWSCloudStorageProvider that has ProviderName field value = aws", func() {
+		It("should get a pointer of S3CloudStorageProvider that has ProviderName field value = aws", func() {
 			cspp := GetProvider(provider)
 			Expect(cspp).NotTo(BeNil())
 			Expect((*cspp).GetName()).To(Equal(expectedValue))
@@ -34,6 +34,18 @@ var _ = Describe("GetProvider", func() {
 		})
 	})
 
+	Context("Provider is s3", func() {
+		BeforeEach(func() {
+			provider = "s3"
+			expectedValue = "s3"
+		})
+		It("should get a pointer of S3CloudStorageProvider that has ProviderName field value = s3", func() {
+			cspp := GetProvider(provider)
+			Expect(cspp).NotTo(BeNil())
+			Expect((*cspp).GetName()).To(Equal(expectedValue))
+		})
+	})
+
 	Context("Provider is non-supported one", func() {
 		BeforeEach(func() {
 			provider = "foo"

pkg/cloudstorages/s3.go

@@ -0,0 +1,91 @@
+package cloudstorages
+
+import (
+	"fmt"
+	"strings"
+)
+
+type S3CloudStorageProvider struct {
+	providerName         string
+	customS3ProviderHost string
+}
+
+func (p *S3CloudStorageProvider) init(args []EnvVars) {
+	if len(args) > 0 {
+		var envs EnvVars = args[0]
+		for _, env := range envs {
+			if env.Name == "RCLONE_S3_ENDPOINT" {
+				p.customS3ProviderHost = p.checkAndRemoveProtocol(env.Value)
+				break
+			}
+		}
+	}
+}
+
+func (p *S3CloudStorageProvider) checkAndRemoveProtocol(url string) string {
+	idx := strings.Index(url, "://")
+	if idx == -1 {
+		return url
+	}
+	return url[idx+3:]
+}
+
+func (p *S3CloudStorageProvider) GetName() string {
+	return p.providerName
+}
+
+func (p *S3CloudStorageProvider) GetCloudStoragePath(bucket string, gatlingName string, subDir string) string {
+	// Format s3:<bucket>/<gatling-name>/<sub-dir>
+	return fmt.Sprintf("s3:%s/%s/%s", bucket, gatlingName, subDir)
+}
+
+func (p *S3CloudStorageProvider) GetCloudStorageReportURL(bucket string, gatlingName string, subDir string) string {
+	// Format https://<bucket>.<s3-provider-host>/<gatling-name>/<sub-dir>/index.html
+	defaultS3ProviderHost := "s3.amazonaws.com"
+	s3ProviderHost := defaultS3ProviderHost
+	if p.customS3ProviderHost != "" {
+		s3ProviderHost = p.customS3ProviderHost
+	}
+
+	return fmt.Sprintf("https://%s.%s/%s/%s/index.html", bucket, s3ProviderHost, gatlingName, subDir)
+}
+
+func (p *S3CloudStorageProvider) GetGatlingTransferResultCommand(resultsDirectoryPath string, region string, storagePath string) string {
+	template := `
+RESULTS_DIR_PATH=%s
+rclone config create s3 s3 env_auth=true region %s
+while true; do
+  if [ -f "${RESULTS_DIR_PATH}/FAILED" ]; then
+    echo "Skip transfering gatling results"
+    break
+  fi
+  if [ -f "${RESULTS_DIR_PATH}/COMPLETED" ]; then
+    for source in $(find ${RESULTS_DIR_PATH} -type f -name *.log)
+    do
+      rclone copyto ${source} --s3-no-check-bucket --s3-env-auth %s/${HOSTNAME}.log
+    done
+    break
+  fi
+  sleep 1;
+done
+`
+	return fmt.Sprintf(template, resultsDirectoryPath, region, storagePath)
+}
+
+func (p *S3CloudStorageProvider) GetGatlingAggregateResultCommand(resultsDirectoryPath string, region string, storagePath string) string {
+	template := `
+GATLING_AGGREGATE_DIR=%s
+rclone config create s3 s3 env_auth=true region %s
+rclone copy --s3-no-check-bucket --s3-env-auth %s ${GATLING_AGGREGATE_DIR}
+`
+	return fmt.Sprintf(template, resultsDirectoryPath, region, storagePath)
+}
+
+func (p *S3CloudStorageProvider) GetGatlingTransferReportCommand(resultsDirectoryPath string, region string, storagePath string) string {
+	template := `
+GATLING_AGGREGATE_DIR=%s
+rclone config create s3 s3 env_auth=true region %s
+rclone copy ${GATLING_AGGREGATE_DIR} --exclude "*.log" --s3-no-check-bucket --s3-env-auth %s
+`
+	return fmt.Sprintf(template, resultsDirectoryPath, region, storagePath)
+}

pkg/cloudstorages/aws_test.go → pkg/cloudstorages/s3_test.go

@@ -16,7 +16,7 @@ var _ = Describe("GetName", func() {
 	})
 	Context("Provider is aws", func() {
 		It("should get provider name = aws", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
+			csp := &S3CloudStorageProvider{providerName: provider}
 			Expect(csp.GetName()).To(Equal(expectedValue))
 		})
 	})
@@ -39,33 +39,45 @@ var _ = Describe("GetCloudStoragePath", func() {
 	})
 	Context("Provider is aws", func() {
 		It("path is aws s3 bucket", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
+			csp := &S3CloudStorageProvider{providerName: provider}
 			Expect(csp.GetCloudStoragePath(bucket, gatlingName, subDir)).To(Equal(expectedValue))
 		})
 	})
 })
 
 var _ = Describe("GetCloudStorageReportURL", func() {
 	var (
-		provider      string
-		bucket        string
-		gatlingName   string
-		subDir        string
-		expectedValue string
+		provider    string
+		bucket      string
+		gatlingName string
+		subDir      string
 	)
 	BeforeEach(func() {
-		provider = "aws"
+		provider = "s3"
 		bucket = "testBucket"
 		gatlingName = "testGatling"
 		subDir = "subDir"
-		expectedValue = "https://testBucket.s3.amazonaws.com/testGatling/subDir/index.html"
 	})
-	Context("Provider is aws", func() {
-		It("path is aws s3 bucket", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
-			Expect(csp.GetCloudStorageReportURL(bucket, gatlingName, subDir)).To(Equal(expectedValue))
+	Context("Provider is s3", func() {
+		It("path is aws s3 bucket if RCLONE_S3_ENDPOINT not defined", func() {
+			csp := &S3CloudStorageProvider{providerName: provider}
+			Expect(csp.GetCloudStorageReportURL(bucket, gatlingName, subDir)).To(Equal("https://testBucket.s3.amazonaws.com/testGatling/subDir/index.html"))
+		})
+
+		It("path is S3 bucket with custom provider endpoint", func() {
+			csp := &S3CloudStorageProvider{providerName: provider}
+			csp.init([]EnvVars{
+				{
+					{
+						Name:  "RCLONE_S3_ENDPOINT",
+						Value: "https://s3.de.io.cloud.ovh.net",
+					},
+				},
+			})
+			Expect(csp.GetCloudStorageReportURL(bucket, gatlingName, subDir)).To(Equal("https://testBucket.s3.de.io.cloud.ovh.net/testGatling/subDir/index.html"))
 		})
 	})
+
 })
 
 var _ = Describe("GetGatlingTransferResultCommand", func() {
@@ -102,7 +114,7 @@ done
 	})
 	Context("Provider is aws", func() {
 		It("returns commands with s3 rclone config", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
+			csp := &S3CloudStorageProvider{providerName: provider}
 			Expect(csp.GetGatlingTransferResultCommand(resultsDirectoryPath, region, storagePath)).To(Equal(expectedValue))
 		})
 	})
@@ -129,7 +141,7 @@ rclone copy --s3-no-check-bucket --s3-env-auth testStoragePath ${GATLING_AGGREGA
 	})
 	Context("Provider is aws", func() {
 		It("returns commands with s3 rclone config", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
+			csp := &S3CloudStorageProvider{providerName: provider}
 			Expect(csp.GetGatlingAggregateResultCommand(resultsDirectoryPath, region, storagePath)).To(Equal(expectedValue))
 		})
 	})
@@ -156,7 +168,7 @@ rclone copy ${GATLING_AGGREGATE_DIR} --exclude "*.log" --s3-no-check-bucket --s3
 	})
 	Context("Provider is aws", func() {
 		It("returns commands with s3 rclone config", func() {
-			csp := &AWSCloudStorageProvider{providerName: provider}
+			csp := &S3CloudStorageProvider{providerName: provider}
 			Expect(csp.GetGatlingTransferReportCommand(resultsDirectoryPath, region, storagePath)).To(Equal(expectedValue))
 		})
 	})