diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 6a686bc..cec15e2 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -7,11 +7,11 @@ name: Docker
 
 on:
   push:
-    branches: [ master ]
+    branches: [ "master" ]
     # Publish semver tags as releases.
     tags: [ 'v*.*.*' ]
   pull_request:
-    branches: [ master ]
+    branches: [ "master" ]
 
 env:
   # Use docker.io for Docker Hub if empty
@@ -33,16 +33,15 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       # Install the cosign tool except on PR
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@main
+        uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
         with:
-          cosign-release: 'v1.13.1'
-
+          cosign-release: 'v2.1.1'
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
@@ -70,12 +69,15 @@ jobs:
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@965c6a410d446a30e95d35052c67d6eded60dad6
+        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
 
       # Sign the resulting Docker image digest except on PRs.
       # This will only write to the public Rekor transparency log when the Docker
@@ -85,7 +87,9 @@ jobs:
       - name: Sign the published Docker image
         if: ${{ github.event_name != 'pull_request' }}
         env:
-          COSIGN_EXPERIMENTAL: "true"
+          # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
+          TAGS: ${{ steps.meta.outputs.tags }}
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
         # This step uses the identity token to provision an ephemeral certificate
         # against the sigstore community Fulcio instance.
-        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}
+        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
diff --git a/cmd/qcloud-exporter/qcloud_exporter.go b/cmd/qcloud-exporter/qcloud_exporter.go
index 80c164f..f340528 100644
--- a/cmd/qcloud-exporter/qcloud_exporter.go
+++ b/cmd/qcloud-exporter/qcloud_exporter.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"github.com/prometheus/client_golang/prometheus/collectors"
 	"net/http"
 	"os"
 	"time"
@@ -28,8 +29,8 @@ func newHandler(cred common.CredentialIface, c *config.TencentConfig,
 	exporterMetricsRegistry := prometheus.NewRegistry()
 	if includeExporterMetrics {
 		exporterMetricsRegistry.MustRegister(
-			prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{}),
-			prometheus.NewGoCollector(),
+			collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+			collectors.NewGoCollector(),
 		)
 	}
 
diff --git a/go.mod b/go.mod
index dd0d0b6..bf90d5a 100644
--- a/go.mod
+++ b/go.mod
@@ -16,7 +16,7 @@ require (
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ckafka v1.0.334
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/clb v1.0.334
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cmq v1.0.334
-	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.634
+	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.750
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cvm v1.0.334
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cynosdb v1.0.413
 	github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dc v1.0.334
diff --git a/go.sum b/go.sum
index 61516ed..7ca222a 100644
--- a/go.sum
+++ b/go.sum
@@ -211,9 +211,6 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/tencentcloud/tencentcloud-sdk-go v1.0.485 h1:l1xeZUO2ddcouOpxO7dhkXcmcYembuCG5EZ6O+Cox/o=
-github.com/tencentcloud/tencentcloud-sdk-go v1.0.528 h1:6HidDboNfqxPVD6/hSgK4vcw3B/sNLHi8ysAAj70Bsc=
-github.com/tencentcloud/tencentcloud-sdk-go v1.0.532 h1:8AmaxcmnFwH5HTcmE9suGsI2CROtiVkNQvot64Y+gv0=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cbs v1.0.334 h1:GijOjoDBcWXtra6hmzpj4IXOahWmsTE3bwpOcp5VBDw=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cbs v1.0.334/go.mod h1:PTp058qpOV//RukBVdYQT962rZg71lIt6eHLK1zdvEc=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cdb v1.0.413 h1:6cQPfHc3I1pKUj23csRd9P/xxUPcnGRLRK2e5NGqtzc=
@@ -231,20 +228,13 @@ github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cmq v1.0.334/go.mod h1:
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.194/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.413/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.430/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.437 h1:Qa0q6mhOkQ/0RoAqOheJAzPFksAf3jsjOZVt4FGcvyQ=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.437/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.479 h1:3kwDb6p1J3LxmwnNgSSEheemPffo+vMewoDzKysYdig=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.479/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.528 h1:ECUVFkluily8Cr0VHzcKmC0M7PLNqEOkoKoS5DukSmA=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.528/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.531 h1:E8vq0WQBjB3jjtCK3u5DPrWGqlgyQUvQ19EkgBob1A8=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.531/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.534 h1:ZsJCXIZO2KfmEsrVN6a75VncTuaSkD4PNd1iXZ1I8BU=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.534/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.576 h1:6L4MeAnCk1NkuKoSfJvNPxqOrXq/HG9FqV3jl6i5t+w=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.576/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.634 h1:xSW5zhVEl+Lp7gJ9Bah1XUAzpGdLB1JrcFmJ+r16RJw=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.634/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
+github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.750 h1:zATJQLrw+i0NRosWvoAZ4FM+GbloqovVJGxLCdcjr/w=
+github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common v1.0.750/go.mod h1:7sCQWVkxcsR38nffDW057DRGk8mUjK1Ing/EFOK8s8Y=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cvm v1.0.334 h1:ulfSODMy8rpKa8MfnTIPbe5HyOArnlB4RJ1qmpj09to=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cvm v1.0.334/go.mod h1:AqyM/ZZMD7q5mHBqNY9YImbSpEpoEe7E/vrTbUWX+po=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/cynosdb v1.0.413 h1:MomwSkFrSLB16s51Yu1h4JO+p3Pzc1yesIj+oNwAVM0=
@@ -253,16 +243,14 @@ github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dc v1.0.334 h1:inkOmQwx
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dc v1.0.334/go.mod h1:5WGSrlIZJOhwIqPjjafb6vzrPEZieSHPhPMjjGPXOSU=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dcdb v1.0.334 h1:Xxe889sr1FVhUPPFdZC4Z5IyJObgnGh0ELe+MJH17Mo=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dcdb v1.0.334/go.mod h1:uvcrduqH3pPyyZoZyEX0WXlXIR554ys3ctSsKoeJp64=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dts v1.0.479 h1:Tuo8zLhHaO+AxHlk7WOYGs6j/3bfD3FMNB3fWAgIxWM=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dts v1.0.479/go.mod h1:CNPxkXeOC/vOmu9a/yaxp+2immIjDL/WsGC/H2rcWQA=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dts v1.0.531 h1:U0diLtuiEK8RDjfEh7X/BKetd+OppXWvoCW3CFJCMKE=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dts v1.0.531/go.mod h1:Mwk3VuBuWg6d2JtT5pKXKfNKxYRH1mrWquMcTVZQ7gc=
+github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ecdn v1.0.750 h1:yzja0ZT7+yciVCEgmy7Zsx8lEjTWXtU6KZL+uHuVUXE=
+github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ecdn v1.0.750/go.mod h1:S6u2ljeAetJAa/lFQVQZAvVJWJSNK7V5e6QPqj4LqA0=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/es v1.0.334 h1:oXOMQ2EmNjqMfpShQeCrWS5QH2MwrAhJfd0rLJOxccE=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/es v1.0.334/go.mod h1:UegCt4vv9jAlzpgDu31ZJTuRP5T2BTV8w+jZBTsZIzg=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/gaap v1.0.528 h1:CS8HIQNpfYQogrPR/WEFdVNJX6GIOwDyBzn1IHMb46g=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/gaap v1.0.528/go.mod h1:J+xFyeGmSCp0x4tXPu5mlAhg2BAYQPIy3fQ4afy26tI=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/gaap v1.0.534 h1:E/ccMQB7Il/U6Da5jrS4YUxpEZhVatageVdny+xAoMk=
-github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/gaap v1.0.534/go.mod h1:MNvt4sQeoetKfp8y3Y1iKv4aR+P7Z5khZX5QXG31ULA=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/kms v1.0.194/go.mod h1:yrBKWhChnDqNz1xuXdSbWXG56XawEq0G5j1lg4VwBD4=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/lighthouse v1.0.334 h1:druwbDkTAvVwEGW4nHVuTuOX0bjk1CtLUDiC3r4gmgY=
 github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/lighthouse v1.0.334/go.mod h1:r8txjlw4DjLDZFOpnPC/hOFHr1VckZc0jjBK6XIFLP0=
diff --git a/pkg/collector/handler_dsa.go b/pkg/collector/handler_dsa.go
new file mode 100644
index 0000000..6cd3a33
--- /dev/null
+++ b/pkg/collector/handler_dsa.go
@@ -0,0 +1,9 @@
+package collector
+
+const (
+	DsaNamespace = "QCE/DSA"
+)
+
+func init() {
+	registerHandler(DsaNamespace, defaultHandlerEnabled, NewCdnHandler)
+}
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 15a0906..bc67949 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -2,7 +2,6 @@ package config
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 
@@ -70,6 +69,7 @@ var (
 		"lb_private":    "QCE/LB_PRIVATE",
 		"waf":           "QCE/WAF",
 		"cfs":           "QCE/CFS",
+		"dsa":           "QCE/DSA",
 	}
 
 	SupportStatisticsTypes = map[string]bool{
@@ -157,7 +157,7 @@ func NewConfig() *TencentConfig {
 
 func (c *TencentConfig) LoadFile(filename string) error {
 	c.Filename = filename
-	content, err := ioutil.ReadFile(c.Filename)
+	content, err := os.ReadFile(c.Filename)
 	if err != nil {
 		return err
 	}
diff --git a/pkg/instance/repository_dsa.go b/pkg/instance/repository_dsa.go
new file mode 100644
index 0000000..d075e90
--- /dev/null
+++ b/pkg/instance/repository_dsa.go
@@ -0,0 +1,5 @@
+package instance
+
+func init() {
+	registerRepository("QCE/DSA", NewCdnTcInstanceRepository)
+}