Add Dockerfile, app.yaml, other configs.

Author: addyosmani

.dockerignore

@@ -0,0 +1,6 @@
+node_modules
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn

.gitignore

@@ -3,3 +3,4 @@ node_modules
 *.pyc
 dist
 tests
+npm-debug.log

Dockerfile

@@ -0,0 +1,69 @@
+# Dockerfile extending the generic Node image with application files for a
+# single application.
+FROM beta.gcr.io/google_appengine/nodejs
+# Check to see if the the version included in the base runtime satisfies \
+# >=4.1.0, if not then do an npm install of the latest available \
+# version that satisfies it. \
+RUN npm install         https://storage.googleapis.com/gae_node_packages/semver.tar.gz && \
+  (node -e 'var semver = require("semver"); \
+            if (!semver.satisfies(process.version, ">=4.1.0")) \
+              process.exit(1);' || \
+   (version=$(curl -L https://storage.googleapis.com/gae_node_packages/node_versions | \
+              node -e ' \
+                var semver = require("semver"); \
+                var http = require("http"); \
+                var spec = process.argv[1]; \
+                var latest = ""; \
+                var versions = ""; \
+                var selected_version; \
+ \
+                function verifyBinary(version) { \
+                  var options = { \
+                    "host": "storage.googleapis.com", \
+                    "method": "HEAD", \
+                    "path": "/gae_node_packages/node-" + version + \
+                            "-linux-x64.tar.gz" \
+                  }; \
+                  var req = http.request(options, function (res) { \
+                    if (res.statusCode == 404) { \
+                      console.error("Binaries for Node satisfying version " + \
+                                    version + " are not available."); \
+                      process.exit(1); \
+                    } \
+                  }); \
+                  req.end(); \
+                } \
+                function satisfies(version) { \
+                  if (semver.satisfies(version, spec)) { \
+                    process.stdout.write(version); \
+                    verifyBinary(version); \
+                    return true; \
+                  } \
+                } \
+                process.stdin.on("data", function(data) { \
+                  versions += data; \
+                }); \
+                process.stdin.on("end", function() { \
+                  versions = \
+                      versions.split("\n").sort().reverse(); \
+                  if (!versions.some(satisfies)) { \
+                    console.error("No version of Node found satisfying: " + \
+                                  spec); \
+                    process.exit(1); \
+                  } \
+                });' \
+                ">=4.1.0") && \
+                rm -rf /nodejs/* && \
+                (curl https://storage.googleapis.com/gae_node_packages/node-$version-linux-x64.tar.gz | \
+                 tar xzf - -C /nodejs --strip-components=1 \
+                 ) \
+    ) \
+   )
+COPY . /app/
+# You have to specify "--unsafe-perm" with npm install
+# when running as root.  Failing to do this can cause
+# install to appear to succeed even if a preinstall
+# script fails, and may have other adverse consequences
+# as well.
+RUN npm --unsafe-perm install
+CMD npm start

app.yaml

@@ -0,0 +1,27 @@
+# Copyright 2015, Google, Inc.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# [START app_yaml]
+runtime: custom
+vm: true
+api_version: 1
+env_variables:
+  PORT: 8080
+
+automatic_scaling:
+  min_num_instances: 2
+  max_num_instances: 20
+  cool_down_period_sec: 60
+  cpu_utilization:
+    target_utilization: 0.5
+# [END app_yaml]