Initial commit

e8f6b04a · Andres Toomsalu · e8f6b04a · e8f6b04a · e8f6b04a · e8f6b04a
Commit e8f6b04a authored Jun 05, 2015 by Andres Toomsalu
--- a/Dockerfile
+++ b/Dockerfile
+FROM            centos:centos7
+MAINTAINER      OpenNode LLC <info@opennodecloud.com>
+
+# Install epel-release
+RUN yum install -y http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
+
+# install pre-requisites
+RUN yum install -y npm net-tools
+
+# add health check script
+ADD nf-demo-app-check /usr/bin/nf-demo-app-check
+
+# make the nodejs src folder available in the docker image
+ADD nodejs/ /srv/nodejs
+WORKDIR /srv/nodejs
+
+# install the dependencies from the package.json file
+RUN npm install
+
+# make port 80 available outside of the image
+EXPOSE 80
+
+# start node with the index.js file of our hello-world application
+CMD ["node", "index.js"]
--- a/Makefile
+++ b/Makefile
+NFDIR = /etc/nodefabric
+
+build:
+	docker build -t docker.io/opennode/nf-demo-app .
+
+push:
+	docker push docker.io/opennode/nf-demo-app
+
+dev-install:
+	install -m 644 nodefabric/nf-demo-app.conf ${NFDIR}/conf.d/nf-demo-app.conf
+	install -m 644 nodefabric/nf-demo-app-haproxy.json ${NFDIR}/files.d/haproxy/consul.tpl.d/nf-demo-app-haproxy.json
+	install -m 644 nodefabric/nf-demo-app-haproxy.tpl ${NFDIR}/files.d/haproxy/haproxy.tpl.d/nf-demo-app-haproxy.tpl
+	install -m 644 nodefabric/nf-demo-app.service /usr/lib/systemd/system/nf-demo-app.service
+	docker exec -t nf-haproxy /haproxy-hup.sh
+	systemctl daemon-reload
+	
--- a/README.md
+++ b/README.md
+# NodeFabric Demo App
+
+## Building
+
+```bash
+# cloning
+git clone git@code.opennodecloud.com:nodefabric/nf-demo-app.git
+
+# building
+cd nf-demo-app
+make build
+
+# tagging
+IMAGE_ID=$( docker images | awk '/^opennode\/nf-demo-app/' | awk '/latest/ { print $3 }' )
+echo $IMAGE_ID
+IMAGE_VERSION=0.0.1
+docker tag $IMAGE_ID docker.io/opennode/nf-demo-app:${IMAGE_VERSION}
+
+# pushing all tags
+make push
+```
+
+## Running
+
+```bash
+# pulling
+docker pull opennode/nf-demo-app:latest
+
+```
+
+## Debugging
+
+```bash
+```
+
--- a/nf-demo-app-check
+++ b/nf-demo-app-check
+#!/bin/bash
+if test -n "$( netstat -ln | awk '/:80 /'  )"; then 
+   # report success
+   exit 0
+else 
+   # report failure
+   exit 2
+fi
--- a/nodefabric/nf-demo-app-haproxy.json
+++ b/nodefabric/nf-demo-app-haproxy.json
+template {
+  source = "/etc/haproxy/haproxy.tpl.d/nf-demo-app-haproxy.tpl"
+  destination = "/etc/haproxy/haproxy.cfg.d/nf-demo-app.cfg"
+  command = "/haproxy-hup.sh || true"
+}
--- a/nodefabric/nf-demo-app-haproxy.tpl
+++ b/nodefabric/nf-demo-app-haproxy.tpl
+listen nf-demo-app
+  bind     *:8010
+  balance  source
+  mode     tcp
+  option   tcpka
+  {{range service "nf-demo-app"}}
+  server {{.Node}} {{.Address}}:{{.Port}} check{{end}}
+
--- a/nodefabric/nf-demo-app.conf
+++ b/nodefabric/nf-demo-app.conf
+DEMOAPP_INSTANCE="nf-demo-app"
+DEMOAPP_IMAGE="opennode/nf-demo-app"
+DEMOAPP_BIND_ADDR="$HOST_PUBLIC_IP"
+DEMOAPP_DATADIR="/var/lib/nf-demo-app"
+DEMOAPP_HELLOWORLD="Im here!"
--- a/nodefabric/nf-demo-app.service
+++ b/nodefabric/nf-demo-app.service
+[Unit]
+Description=NodeFabric Demo App Service
+Requires=docker.service
+Wants=nf-consul.service
+Wants=nf-haproxy.service
+After=nf-haproxy.service
+
+[Service]
+EnvironmentFile=/etc/nodefabric/conf.d/nf-demo-app.conf
+TimeoutStartSec=0
+ExecStartPre=/usr/bin/mkdir -p $DEMOAPP_DATADIR
+ExecStartPre=-/usr/bin/docker kill $DEMOAPP_INSTANCE
+ExecStartPre=-/usr/bin/docker rm $DEMOAPP_INSTANCE
+ExecStart=/usr/bin/bash -c "source /etc/nodefabric/nodefabric.conf && \
+docker run --name=$DEMOAPP_INSTANCE -h $HOSTNAME \
+             -p $DEMOAPP_BIND_ADDR:8010:80 \
+	     -e SERVICE_80_CHECK_CMD=/usr/bin/nf-demo-app-check \
+             -e DEMOAPP_HELLOWORLD=\"$DEMOAPP_HELLOWORLD\" \
+             -v $DEMOAPP_DATADIR:/var/lib/nf-demo-app \
+             $DEMOAPP_IMAGE"
+ExecStop=-/usr/bin/docker stop $DEMOAPP_INSTANCE
+
+[Install]
+WantedBy=multi-user.target
--- a/nodejs/index.js
+++ b/nodejs/index.js
+
+var express = require('express');
+var os = require("os");
+
+var app = express();
+var hostname = os.hostname();
+
+app.get('/', function (req, res) {
+  res.send('<html><body>Hello from Node.js container ' + hostname + '</body></html>');
+});
+
+app.listen(80);
+console.log('Running on http://localhost');
--- a/nodejs/package.json
+++ b/nodejs/package.json
+{
+  "name": "nodefabric-hello-world",
+  "private": true,
+  "version": "0.0.1",
+  "description": "Node.js Hello world app on NodeFabric",
+  "author": "opennodecloud.com",
+  "dependencies": {
+    "express": "4.12.0"
+  }
+}