added support local mirrors

Change-Id: I542dbf1b04b2e7569522896506a3a46fe8f8b200
diff --git a/metadata/service/cluster/single.yml b/metadata/service/cluster/single.yml
index 4c1fa5a..5c91bd1 100644
--- a/metadata/service/cluster/single.yml
+++ b/metadata/service/cluster/single.yml
@@ -8,4 +8,38 @@
       enabled: true
       region:
         port: 80
-        host: localhost
\ No newline at end of file
+        host: localhost
+      saltstack_repo_key: |
+        -----BEGIN PGP PUBLIC KEY BLOCK-----
+        Version: GnuPG v2
+
+        mQENBFOpvpgBCADkP656H41i8fpplEEB8IeLhugyC2rTEwwSclb8tQNYtUiGdna9
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+        WWcgjnRuOHd4rPeT+vQbOWGu6x4bxuVf9aTiYkf7ZjVF2lPn97EXOEGFWPZeZbH4
+        vdRFH9jMtP+rrLt6+3c9j0M8SIJYwBL1+CNpEC/BuHj/Ra/cmnG5ZNhYebm76h5f
+        T9iPW9fFww36FzFka4VPlvA4oB7ebBtquFg3sdQNU/MmTVV4jPFWXxh4oRDDR+8N
+        1bcPnbB11b5ary99F/mqr7RgQ+YFF0uKRE3SKa7a+6cIuHEZ7Za+zhPaQlzAOZlx
+        fuBmScum8uQTrEF5+Um5zkwC7EXTdH1co/+/V/fpOtxIg4XO4kcugZefVm5ERfVS
+        MA==
+        =dtMN
+        -----END PGP PUBLIC KEY BLOCK-----
+      saltstack_repo_trusty: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/ trusty main"
+      saltstack_repo_xenial: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/ xenial main"
\ No newline at end of file