use ssh-tunnel port if present

Author: ssendev

README.md

@@ -73,7 +73,7 @@ The Redis host. If [url](#url) is defined, then this option is not needed.
 
 The Redis port. If [url](#url) is defined, then this option is not needed.
 
-*Default:* `6379`
+*Default:* `6379` or `context.tunnel.srcPort` if present (set by [ember-cli-deploy-ssh-tunnel][7])
 
 ### database
 
@@ -222,18 +222,13 @@ Add set up your `deploy.js` similar to the following:
 ```js
   'redis': {
     host: "localhost",
-    port:  49156
   },
   'ssh-tunnel': {
     username:       "your-ssh-username",
     host:           "remote-redis-host"
-    srcPort:        49156
   }
 ```
 
-_(NB: by default `ssh-tunnel` assigns a random port for srcPort, but we need that
-  to be the same for our `redis` config, so I've just hardcoded it above)_
-
 ### What if my Redis server is only accessible *from* my remote server?
 
 Sometimes you need to SSH into a server (a "bastion" server) and then run
@@ -245,12 +240,10 @@ your Redis host as the destination host, like so:
 ```js
   'redis': {
     host: "localhost",
-    port:  49156
   },
   'ssh-tunnel': {
     username:       "your-ssh-username",
     host:           "remote-redis-host"
-    srcPort:        49156,
     dstHost:        "location-of-your-elasticache-node-or-remote-redis"
   }
 ```
@@ -265,6 +258,10 @@ The following properties are expected to be present on the deployment `context`
 - `commandLineArgs.revisionKey` (provided by [ember-cli-deploy][5])
 - `deployEnvironment`           (provided by [ember-cli-deploy][5])
 
+The following properties are used if present on the deployment `context` object:
+
+- `tunnel.srcPort`              (provided by [ember-cli-deploy-ssh-tunnel][7])
+
 ## Running Tests
 
 - `npm test`
@@ -275,3 +272,4 @@ The following properties are expected to be present on the deployment `context`
 [4]: https://github.com/ember-cli-deploy/ember-cli-deploy-build "ember-cli-deploy-build"
 [5]: https://github.com/ember-cli/ember-cli-deploy "ember-cli-deploy"
 [6]: https://github.com/ember-cli-deploy/ember-cli-deploy-revision-data "ember-cli-deploy-revision-data"
+[7]: https://github.com/ember-cli-deploy/ember-cli-deploy-ssh-tunnel "ember-cli-deploy-ssh-tunnel"

index.js

@@ -20,7 +20,13 @@ module.exports = {
       name: options.name,
       defaultConfig: {
         host: 'localhost',
-        port: 6379,
+        port: function(context) {
+          if (context.tunnel && context.tunnel.srcPort) {
+            return context.tunnel.srcPort;
+          } else {
+            return 6379;
+          }
+        },
         filePattern: 'index.html',
         distDir: function(context) {
           return context.distDir;
@@ -42,6 +48,7 @@ module.exports = {
         },
         redisDeployClient: function(context) {
           var redisOptions = this.pluginConfig;
+          redisOptions.port = this.readConfig('port');
           var redisLib = context._redisLib;
 
           return new Redis(redisOptions, redisLib);

tests/unit/index-nodetest.js

@@ -92,6 +92,78 @@ describe('redis plugin', function() {
       assert.equal(redisLib.createdClient.options.database, 4);
     });
 
+    describe('resolving port from the pipeline', function() {
+      it('uses the config data if it already exists', function() {
+        var plugin = subject.createDeployPlugin({
+          name: 'redis'
+        });
+
+        var config = {
+          host: 'somehost',
+          port: 1234,
+        };
+        var context = {
+          ui: mockUi,
+          project: stubProject,
+          config: {
+            redis: config
+          },
+          tunnel: {
+            srcPort: '2345'
+          }
+        };
+
+        plugin.beforeHook(context);
+        plugin.configure(context);
+        assert.equal(plugin.readConfig('port'), '1234');
+      });
+
+      it('uses the context value if it exists and config doesn\'t', function() {
+        var plugin = subject.createDeployPlugin({
+          name: 'redis'
+        });
+
+        var config = {
+          host: 'somehost',
+        };
+        var context = {
+          ui: mockUi,
+          project: stubProject,
+          config: {
+            redis: config
+          },
+          tunnel: {
+            srcPort: '2345'
+          }
+        };
+
+        plugin.beforeHook(context);
+        plugin.configure(context);
+        assert.equal(plugin.readConfig('port'), '2345');
+      });
+
+      it('uses the default port if config and context don\'t exist', function() {
+        var plugin = subject.createDeployPlugin({
+          name: 'redis'
+        });
+
+        var config = {
+          host: 'somehost',
+        };
+        var context = {
+          ui: mockUi,
+          project: stubProject,
+          config: {
+            redis: config
+          }
+        };
+
+        plugin.beforeHook(context);
+        plugin.configure(context);
+        assert.equal(plugin.readConfig('port'), '6379');
+      });
+    });
+
     describe('resolving revisionKey from the pipeline', function() {
       it('uses the config data if it already exists', function() {
         var plugin = subject.createDeployPlugin({