Bump virtlet version to v1.0.0

Change-Id: I75867bc271c92cb5216ec663eeff8e007ed65aab
diff --git a/classes/cluster/sl-k8s-calico/kubernetes/init.yml b/classes/cluster/sl-k8s-calico/kubernetes/init.yml
index c216b01..11c4b06 100644
--- a/classes/cluster/sl-k8s-calico/kubernetes/init.yml
+++ b/classes/cluster/sl-k8s-calico/kubernetes/init.yml
@@ -31,7 +31,7 @@
     kubernetes_netchecker_agent_image: mirantis/k8s-netchecker-agent:stable
     kubernetes_netchecker_server_image: mirantis/k8s-netchecker-server:stable
     kubernetes_netchecker_agent_probeurls: "http://ipinfo.io"
-    kubernetes_virtlet_image: mirantis/virtlet:latest
+    kubernetes_virtlet_image: mirantis/virtlet:v1.0.0
     kubernetes_criproxy_version: v0.10.0
     kubernetes_criproxy_checksum: md5=52717b1f70f15558ef4bdb0e4d4948da
     kubernetes_externaldns_image: mirantis/external-dns:latest