Initial version of Ruby template ported to of-watchdog

Signed-off-by: Alex Ellis (VMware) <[email protected]>
openfaas · Sep 28, 2018 · 4b2cf0e · 4b2cf0e
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diff --git a/README.md b/README.md
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+## ruby-http
+
+### Usage:
+
+```
+faas template pull
+faas new --lang ruby-http homepage
+```
+
+#### Example:
+
+Edit the `homepage/handler.rb` file to return some HTML:
+
+```ruby
+class Handler
+    def run(body, headers)
+        response_headers = {"content-type": "text/html"}
+        body = "<html>Hello world from the Ruby template</html>"
+
+        return body, response_headers
+    end
+end
+```
+
+Add a gem to the `homepage/Gemfile` if you need additional dependencies.
+
+Deploy:
+
+```sh
+faas-cli up -f homepage.yml
+```
+
diff --git a/template/ruby-http/Dockerfile b/template/ruby-http/Dockerfile
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+FROM ruby:2.4-alpine3.6
+
+ARG ADDITIONAL_PACKAGE
+
+# Alternatively use ADD https:// (which will not be cached by Docker builder)
+RUN apk --no-cache add curl ${ADDITIONAL_PACKAGE} \
+    && echo "Pulling watchdog binary from Github." \
+    && curl -sSL https://github.com/openfaas-incubator/of-watchdog/releases/download/0.4.0/of-watchdog > /usr/bin/fwatchdog \
+    && chmod +x /usr/bin/fwatchdog \
+    && apk del curl
+
+WORKDIR /home/app
+
+COPY Gemfile    		.
+COPY index.rb           .
+COPY function           function
+
+RUN bundle install \
+  && mkdir -p /home/app/function
+
+WORKDIR /home/app/function
+
+RUN bundle install 
+
+RUN addgroup -S app \
+  && adduser app -S -G app
+
+RUN chown app:app -R /home/app
+
+USER app
+
+WORKDIR /home/app
+
+ENV fprocess="ruby index.rb"
+EXPOSE 8080
+
+HEALTHCHECK --interval=2s CMD [ -e /tmp/.lock ] || exit 1
+
+ENV upstream_url="http://127.0.0.1:5000"
+ENV mode="http"
+
+CMD ["fwatchdog"]
diff --git a/template/ruby-http/Gemfile b/template/ruby-http/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem "sinatra"
diff --git a/template/ruby-http/function/Gemfile b/template/ruby-http/function/Gemfile
@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+
diff --git a/template/ruby-http/function/handler.rb b/template/ruby-http/function/handler.rb
@@ -0,0 +1,8 @@
+class Handler
+    def run(body, headers)
+        response_headers = {"content-type": "text/plain"}
+        body = "Hello world from the Ruby template"
+
+        return body, response_headers
+    end
+end
diff --git a/template/ruby-http/index.rb b/template/ruby-http/index.rb
@@ -0,0 +1,40 @@
+# Copyright (c) Alex Ellis 2017. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+require_relative 'function/handler'
+
+require 'sinatra'
+
+set :port, 5000
+# set :bind, '0.0.0.0'
+
+handler = Handler.new
+
+get '/*' do
+  res, res_headers = handler.run request.body, request.env
+
+  headers = res_headers
+
+  return res
+end
+
+post '/*' do
+    res, res_headers = handler.run request.body, request.env
+    headers = res_headers
+    return res
+end
+
+put '/*' do
+    res, res_headers = handler.run request.body, request.env
+    headers = res_headers
+
+    return res
+end
+
+delete '/*' do
+    res, res_headers = handler.run request.body, request.env
+    headers = res_headers
+
+    return res
+end
+
diff --git a/template/ruby-http/template.yml b/template/ruby-http/template.yml
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+language: ruby
+fprocess: ruby index.rb
+build_options: 
+  - name: dev
+    packages: 
+      - make
+      - automake
+      - gcc
+      - g++
+      - subversion
+      - python3-dev
+      - musl-dev
+      - libffi-dev
+      - libssh
+      - libssh-dev