feat(stacks): add CockroachDB stack template

stack_templates.json

@@ -10,5 +10,17 @@
       "url": "https://github.com/openfaas/faas",
       "stackfile": "docker-compose.yml"
     }
+  },
+  {
+    "title": "CockroachDB",
+    "description": "CockroachDB cluster",
+    "note": "Deploys an insecure CockroachDB cluster, please refer to <a href=\"https://www.cockroachlabs.com/docs/stable/orchestrate-cockroachdb-with-docker-swarm.html\" target=\"_blank\">CockroachDB documentation</a> for production deployments.",
+    "categories": ["database"],
+    "platform": "linux",
+    "logo": "https://cloudinovasi.id/assets/img/logos/cockroachdb.png",
+    "repository": {
+      "url": "https://github.com/portainer/templates",
+      "stackfile": "stacks/cockroachdb/docker-compose.yml"
+    }
   }
 ]

stacks/cockroachdb/docker-stack.yml

@@ -0,0 +1,16 @@
+version: '3'
+
+services:
+  roach1:
+    image: cockroachdb/cockroach:latest
+    command: "start --insecure"
+    deploy:
+      replicas: 1
+    ports:
+      - "8080"
+
+  roachN:
+    image: cockroachdb/cockroach:latest
+    command: "start --insecure --join=roach1,roachN"
+    deploy:
+      mode: global