Docker images from Robert Nemeti

application/Dockerfile

@@ -13,5 +13,9 @@ RUN echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-se
 RUN apt-get install -q -y oracle-java8-installer
 
 # Add the dist package of de.idnow.example from de.idnow.example/target/universal/de-idnow-example-1.0-SNAPSHOT.zip
+RUN mkdir /opt/idnow
+ADD de.idnow.example/target/universal/de-idnow-example-1.0-SNAPSHOT.zip /opt/idnow/
 
 # Start the play netty server on image start
+RUN ["unzip","/opt/idnow/de-idnow-example-1.0-SNAPSHOT.zip","-d","/opt/idnow/"]
+ENTRYPOINT ["/opt/idnow/de-idnow-example-1.0-SNAPSHOT/bin/de-idnow-example"]

application/build.sh

@@ -4,4 +4,13 @@ cd de.idnow.example
 ./activator update compile dist
 cd ..
 
+#because dockerignore is not able to include parts of a wildcard exclude, we exclude everything but our package 
+echo -e "build.sh\nrun.sh" > .dockerignore
+find de.idnow.example/  ! -regex 'de.idnow.example/?\(target\)?/?\(universal\)?/?\(de-idnow-example-1.0-SNAPSHOT.zip\)?' >> .dockerignore
+
 # now create the docker image
+docker build -t nrobert/idnow-app .
+
+#we don't need .dockerignore, as we generate it dynamically
+rm -f .dockerignore
+

application/run.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+#run the container with port 9000 exposed and mapped to host, in order to be able to accept incomming requestes from nginx
+docker run -it --rm -p 9000:9000 nrobert/idnow-app

nginx-proxy/.dockerignore

@@ -0,0 +1,2 @@
+run.sh
+build.sh

nginx-proxy/Dockerfile

@@ -1,3 +1,12 @@
 FROM ubuntu:14.04
 
 RUN apt-get install -q -y nginx
+
+ADD nginx-site /etc/nginx/sites-available/default
+ADD start-nginx.sh /root/
+
+# forward request and error logs to docker log collector
+RUN ln -sf /dev/stdout /var/log/nginx/access.log
+RUN ln -sf /dev/stderr /var/log/nginx/error.log
+
+ENTRYPOINT ["/root/start-nginx.sh"]

nginx-proxy/nginx-site

@@ -0,0 +1,9 @@
+server {
+
+	listen 80 default_server;
+	server_name _;
+	location / {
+		proxy_pass http://192.168.5.171:9000;
+	}
+}
+

nginx-proxy/run.sh

@@ -0,0 +1,25 @@
+#!/bin/bash -ex
+
+usage="Usage: $0 <valid IP address of the listening app>"
+
+#check if there is an argument 
+if [ $# -ne 1 ] ; then
+	echo $usage
+	exit 1
+fi
+#check if the arg is a valid IP address 
+oIFS=$IFS
+IFS="."
+arr=($1)
+IFS=$oIFS
+for i in "${!arr[@]}" 
+do
+	if [ $i -gt 3 ] || [ ${arr[$i]} -gt 255 ] ; then
+		echo $usage
+		exit 1
+	fi
+
+done
+
+#run the container with port 80 exposed and mapped to the host so it's accesible
+docker run -it --rm -p 80:80 docker-example-nginx-proxy $1

nginx-proxy/start-nginx.sh

@@ -0,0 +1,7 @@
+#!/bin/bash -ex
+
+#pass on the listening ip of the app server to nginx
+perl -pli -e "/proxy_pass/ and s/\/[\d\.]*:/\/$1:/" etc/nginx/sites-available/default
+
+#run nginx in foreground
+nginx -g "daemon off;"