Merge pull request #6434 from hashicorp/docs-add-grpc-info

docs: Added grpc info; small style fixes to connect guide

website/source/guides/integrations/consul-connect/index.html.md

@@ -56,6 +56,40 @@ run in dev mode with the following command:
 $ consul agent -dev
 ```
 
+To use Connect on a non-dev Consul agent, you will minimally need to enable the
+GRPC port and set `connect` to enabled by adding some additional information to
+your Consul client configurations, depending on format.
+
+For HCL configurations:
+
+```hcl
+# ...
+
+ports {
+  "grpc" = 8502
+}
+
+connect {
+  enabled = true
+}
+```
+
+For JSON configurations:
+
+```javascript
+{
+  // ...
+  "ports": {
+    "grpc": 8502
+  },
+  "connect": {
+     "enabled": true
+  }
+}
+```
+
+
+
 ### Nomad
 
 Nomad must schedule onto a routable interface in order for the proxies to
@@ -89,6 +123,7 @@ to Nomad by copying the HCL into a file named `connect.nomad` and running:
 ```hcl
 job "countdash" {
   datacenters = ["dc1"]
+
   group "api" {
     network {
       mode = "bridge"
@@ -105,6 +140,7 @@ to Nomad by copying the HCL into a file named `connect.nomad` and running:
 
     task "web" {
       driver = "docker"
+
       config {
         image = "hashicorpnomad/counter-api:v1"
       }
@@ -114,6 +150,7 @@ to Nomad by copying the HCL into a file named `connect.nomad` and running:
   group "dashboard" {
     network {
       mode = "bridge"
+
       port "http" {
         static = 9002
         to     = 9002
@@ -138,9 +175,11 @@ to Nomad by copying the HCL into a file named `connect.nomad` and running:
 
     task "dashboard" {
       driver = "docker"
+
       env {
         COUNTING_SERVICE_URL = "http://${NOMAD_UPSTREAM_ADDR_count_api}"
       }
+
       config {
         image = "hashicorpnomad/counter-dashboard:v1"
       }
@@ -161,7 +200,7 @@ The API service is defined as a task group with a bridge network:
       mode = "bridge"
     }
 
-     ...
+    # ...
   }
 ```
 
@@ -170,7 +209,8 @@ any ports in its network. The service stanza enables Connect:
 
 ```hcl
   group "api" {
-     ...
+
+    # ...
 
     service {
       name = "count-api"
@@ -181,7 +221,8 @@ any ports in its network. The service stanza enables Connect:
       }
     }
 
-     ...
+    # ...
+
   }
 ```
 
@@ -198,13 +239,15 @@ forwarded port:
   group "dashboard" {
     network {
       mode = "bridge"
+
       port "http" {
         static = 9002
         to     = 9002
       }
     }
 
-     ...
+    # ...
+
   }
 ```
 
@@ -261,7 +304,7 @@ dashes (`-`) are converted to underscores (`_`) in environment variables so
  - Consul Connect Native is not yet supported.
  - Consul Connect HTTP and gRPC checks are not yet supported.
  - Consul ACLs are not yet supported.
- - Only the Docker, exec, raw exec, and java drivers support network namespaces
+ - Only the Docker, exec, raw_exec, and java drivers support network namespaces
    and Connect.
  - Variable interpolation for group services and checks are not yet supported.
  - Consul Connect and network namespaces are only supported on Linux.