diff --git a/templates/argo-cd/createapp-wftpl.yaml b/templates/argo-cd/createapp-wftpl.yaml
index 67a47cb..fd09826 100644
--- a/templates/argo-cd/createapp-wftpl.yaml
+++ b/templates/argo-cd/createapp-wftpl.yaml
@@ -10,10 +10,10 @@ spec:
       value: "hanu-deploy-apps"
     - name: app_name
       value: "lma"
-    - name: repository_url
+    - name: manifest_repo_url
       value: "https://github.com/openinfradev/decapod-manifests"
     - name: revision
-      value: main
+      value: "main"
   templates:
   - name: createApp
     inputs:
@@ -56,7 +56,7 @@ spec:
         - name: NAMESPACE
           value: "{{inputs.parameters.namespace}}"
         - name: REPO
-          value: "{{workflow.parameters.repository_url}}"
+          value: "{{workflow.parameters.manifest_repo_url}}"
         - name: REVISION
           value: "{{workflow.parameters.revision}}"
 
diff --git a/templates/decapod-apps/lma-uniformed-wftpl.yaml b/templates/decapod-apps/lma-uniformed-wftpl.yaml
index 4dce67d..5fd27f8 100644
--- a/templates/decapod-apps/lma-uniformed-wftpl.yaml
+++ b/templates/decapod-apps/lma-uniformed-wftpl.yaml
@@ -11,7 +11,9 @@ spec:
       value: "hanu-reference"
     - name: app_name
       value: "lma"
-    - name: repository_url
+    - name: site_repo_url
+      value: "https://github.com/openinfradev/decapod-site"
+    - name: manifest_repo_url
       value: "https://github.com/openinfradev/decapod-manifests"
     - name: revision
       value: main
diff --git a/templates/decapod-apps/openstack-components-wf.yaml b/templates/decapod-apps/openstack-components-wf.yaml
index b8d2a1e..1157bba 100644
--- a/templates/decapod-apps/openstack-components-wf.yaml
+++ b/templates/decapod-apps/openstack-components-wf.yaml
@@ -11,7 +11,7 @@ spec:
       value: "hanu-reference"
     - name: app_name
       value: "openstack"
-    - name: repository_url
+    - name: manifest_repo_url
       value: "https://github.com/openinfradev/decapod-manifests"
     - name: revision
       value: main
diff --git a/templates/decapod-apps/openstack-infra-wftpl.yaml b/templates/decapod-apps/openstack-infra-wftpl.yaml
index 9cdd3ba..78f98c2 100644
--- a/templates/decapod-apps/openstack-infra-wftpl.yaml
+++ b/templates/decapod-apps/openstack-infra-wftpl.yaml
@@ -11,7 +11,7 @@ spec:
       value: "hanu-reference"
     - name: app_name
       value: "openstack"
-    - name: repository_url
+    - name: manifest_repo_url
       value: "https://github.com/openinfradev/decapod-manifests"
     - name: revision
       value: main
diff --git a/templates/decapod-apps/service-mesh-wf.yaml b/templates/decapod-apps/service-mesh-wf.yaml
index c6c0cdc..a7d77e7 100644
--- a/templates/decapod-apps/service-mesh-wf.yaml
+++ b/templates/decapod-apps/service-mesh-wf.yaml
@@ -11,7 +11,7 @@ spec:
         value: hanu-reference
       - name: app_name
         value: service-mesh
-      - name: repository_url
+      - name: manifest_repo_url
         value: 'https://github.com/openinfradev/decapod-manifests'
       - name: revision
         value: main
diff --git a/templates/decapod-apps/tks-lma-federation-wftpl.yaml b/templates/decapod-apps/tks-lma-federation-wftpl.yaml
deleted file mode 100644
index 6cd7976..0000000
--- a/templates/decapod-apps/tks-lma-federation-wftpl.yaml
+++ /dev/null
@@ -1,153 +0,0 @@
-apiVersion: argoproj.io/v1alpha1
-kind: WorkflowTemplate
-metadata:
-  name: tks-lma-federation
-  namespace: argo
-spec:
-  entrypoint: deploy
-  arguments:
-    parameters:
-    - name: site_name
-      value: "hanu-reference"
-    - name: app_name
-      value: "lma"
-    - name: label
-      value: "hanu-app1"
-    - name: repository_url
-      value: "https://github.com/openinfradev/decapod-manifests"
-  templates:
-  - name: deploy
-    steps:
-    - - name: process
-        template: argocd
-    - - name: postprocess
-        template: tks-client-epregister
-        arguments:
-          parameters:
-          - name: tks
-            value: "127.0.0.1"
-          - name: clusterid
-            value: "6abead61-ff2a-4af4-8f41-d2c44c745de7"
-          - name: appgroupid
-            value: "abbead61-ff2a-4af4-8f41-d2c44c745de7"
-          - name: clusterep
-            value: ""
-          # 3-ways for transfer information (about applications)
-          #   1. eplist 변수에 json 형태로 어플리케이션별 모든 url 제공 "{"1":"127.0.0.1","2":"127.0.0.1:10232"}"
-          #   2. clusterep에 클러스터에 대한 ip혹은 dns를 명시하고 epportlist변수에 어플리케이션별 포트를 제공 "{"1":"30000","2":"30005"}"
-          #   3. clusterep에 클러스터에 대한 ip 혹은 dns를 적용하여 미리 정해진 내용을 등록하도록 유도 - 현재는 30007 포트만 prometheus sidecar 서비스로 등재
-          # (For Example)
-          # (case 1)
-          # - name: eplist
-          #   value: "{\"1\":\"127.0.0.1\",\"2\":\"127.0.0.1:10232\"}"
-          # (case 2)
-          # - name: clusterep
-          #   value: "taco.mycluster.com"
-          # - name: epportlist
-          #   value: "{"1":"30000","2":"30005"}"
-          # (case 3)
-          # - name: clusterep
-          #   value: "192.168.0.1"
-
-  - name: argocd
-    dag:
-      tasks:
-      - name: operator
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "prometheus-operator", "namespace": "lma" },
-                { "path": "eck-operator", "namespace": "elastic-system" },
-                { "path": "fluentbit-operator", "namespace": "lma" }
-              ]
-        dependencies: []
-      - name: logging
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "eck-resource", "namespace": "lma" },
-                { "path": "fluentbit", "namespace": "lma" },
-                { "path": "kubernetes-event-exporter", "namespace": "lma" }
-              ]
-        dependencies: [operator]
-      - name: prepare-lma
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "thanos-config", "namespace": "lma" }
-              ]
-        dependencies: [operator]
-
-      - name: prometheus
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "prometheus", "namespace": "lma" },
-                { "path": "kube-state-metrics", "namespace": "lma" },
-                { "path": "prometheus-process-exporter", "namespace": "lma" },
-                { "path": "prometheus-pushgateway", "namespace": "lma" },
-                { "path": "prometheus-node-exporter", "namespace": "lma" },
-                { "path": "prometheus-adapter", "namespace": "lma" },
-                { "path": "addons", "namespace": "lma" }
-              ]
-        dependencies: [prepare-lma]
-
-      - name: federation
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "thanos", "namespace": "lma" }
-              ]
-        dependencies: [prometheus,logging]
-
-      - name: grafana
-        templateRef:
-          name: create-application
-          template: installApps
-        arguments:
-          parameters: 
-          - name: list
-            value: |
-              [
-                { "path": "grafana", "namespace": "lma" }
-              ]
-        dependencies: [federation]
-
-  - name: tks-client-epregister
-    inputs:
-      parameters:
-      - name: tks
-      - name: clusterid
-      - name: appgroupid
-      - name: clusterep
-    container:
-      # run cowsay with that message input parameter as args
-      image: ghcr.io/openinfradev/ep2tks:v0.1.0
-      command: ["/app/ep2tks"]
-      args: ["-tks","{{inputs.parameters.tks}}","-clusterep","{{inputs.parameters.clusterep}}",
-        "-appgroupid","{{inputs.parameters.appgroupid}}","-clusterid","{{inputs.parameters.clusterid}}"]
diff --git a/templates/decapod-manifests/update-decapod-manifest-wftpl.yaml b/templates/decapod-manifests/update-decapod-manifest-wftpl.yaml
new file mode 100644
index 0000000..2ee3d87
--- /dev/null
+++ b/templates/decapod-manifests/update-decapod-manifest-wftpl.yaml
@@ -0,0 +1,136 @@
+apiVersion: argoproj.io/v1alpha1
+kind: WorkflowTemplate
+metadata:
+  name: update-decapod-manifest
+  namespace: argo
+spec:
+  templates:
+  - name: updateManifest
+    synchronization:
+      mutex:
+        name: default
+    inputs:
+      parameters:
+      - name: action
+        value: "update"
+      - name: cluster_name
+        value: "hanu-reference"
+      - name: app_group
+        value: "lma"
+      - name: chart
+        value: "thanos"
+      # kv_map_str usage #
+      # - 'update' action: {"k1": "v1", "k2": "v2"}
+      # - 'insert' action: above format or value as list type. For eg, {"key": [v1, v2]}
+      - name: kv_map_str
+        value: ""
+    script:
+      image: sktdev/python-centos-wf-worker:v1.0
+      command: ["python"]
+      env:
+      source: |
+        import sys
+        import argparse
+        import git
+        import ruamel.yaml
+        import os
+        import json
+
+        action = "{{inputs.parameters.action}}"
+        clusterName = "{{inputs.parameters.cluster_name}}"
+        appGroup = "{{inputs.parameters.app_group}}"
+        chartName = "{{inputs.parameters.chart}}"
+        kvMapStr = "{{inputs.parameters.kv_map_str}}"
+        kvMapStr2 = kvMapStr.replace("'", "\"")
+        kvMap = json.loads(kvMapStr2)
+
+        repo = None
+        config = {}
+        commit_msg = ''
+        numChanged = 0
+        sitePath = './decapod-site'
+        siteFileName = "{}/{}/site-values.yaml".format(clusterName,appGroup)
+        siteFileNameFull = "{}/{}".format(sitePath, siteFileName)
+
+        # Clone or re-use decapod-site repository #
+        if not os.path.isdir(sitePath):
+            print("Cloning repository...")
+
+            repo = git.Repo.clone_from("{{workflow.parameters.site_repo_url}}", 'decapod-site')
+            with repo.config_writer() as git_config:
+                git_config.set_value('user', 'email', 'tks-argo@tks.com')
+                git_config.set_value('user', 'name', 'TKS Argo')
+        else:
+            print("The repo already exists. Pulling latest updates..")
+
+            repo = git.Repo(sitePath)
+            repo.remotes.origin.pull()
+
+        with open(siteFileNameFull, 'r') as f:
+            config = ruamel.yaml.round_trip_load(f, preserve_quotes=True)
+
+        charts = config["charts"]
+        chartFound = [chart for chart in charts if chart['name'] == chartName][0]
+
+        if action == 'update':
+            for k,v in kvMap.items():
+              if (chartFound['override'][k] == v):
+                  print("The value {} isn't changed. Skipping update...".format(v))
+              else:
+                  chartFound['override'][k] = v
+                  numChanged += 1
+            commit_msg = "update items for {} chart in '{}' cluster".format(chartName, clusterName)
+        elif action == 'insert':
+            for k,v in kvMap.items():
+              # If the value is list type, then append one by one iterating over the list. 
+              if isinstance(v, list):
+                for item in v:
+                  if item in chartFound['override'][k]:
+                    print("The value {} already exists.".format(item))
+                  else:
+                    chartFound['override'][k].append(item)
+                    numChanged += 1
+              elif (v in chartFound['override'][k]):
+                  print("The value {} already exists.".format(v))
+              else:
+                  chartFound['override'][k].append(v)
+                  numChanged += 1
+            commit_msg = "insert items for {} chart in '{}' cluster".format(chartName, clusterName)
+        elif action == 'delete':
+            for k,v in kvMap.items():
+              if (v in chartFound['override'][k]):
+                  print("Found value '{}'. Deleting it...".format(v))
+                  chartFound['override'][k].remove(v)
+                  numChanged += 1
+              else:
+                  print("The value {} doesn't exist.".format(v))
+            commit_msg = "delete items for {} chart in '{}' cluster".format(chartName, clusterName)
+        else:
+            sys.exit("Wrong action type")
+
+        if numChanged == 0:
+          print("Nothing updated. Exiting task..")
+          sys.exit(0)
+
+        ###############################
+        # Commit and push the changed #
+        ###############################
+
+        with open(siteFileNameFull, 'w') as f:
+            ruamel.yaml.round_trip_dump(config, f)
+
+        diff = repo.git.diff(repo.head.commit.tree)
+        print(diff)
+
+        # Provide a list of the files to stage
+        repo.index.add([siteFileName])
+
+        # Provide a commit message
+        repo.index.commit(commit_msg)
+        res = repo.remotes.origin.push()[0]
+
+        # flag '256' means successful fast-forward
+        if res.flags != 256:
+            print(res.summary)
+            sys.exit("Push failed!")
+