Updated all dockerfiles with their latest base images.

csharp-aspnet/Dockerfile

@@ -1,4 +1,4 @@
-FROM microsoft/dotnet:1.1-sdk-msbuild
+FROM microsoft/dotnet:latest
 RUN mkdir /src
 WORKDIR /src
 ADD app/src/ /src

docker/Dockerfile

@@ -1,5 +1,5 @@
 # Define the base image
-FROM alpine:3.5
+FROM alpine:3.7
 
 # Set environment variables
 ENV APP_HOME /app

go-iris/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.8-alpine
+FROM golang:1.9.2-alpine3.7
 
 RUN apk add --no-cache git build-base
 

java-spark/Dockerfile

@@ -1,4 +1,4 @@
-FROM java:8 
+FROM 9.0.1-11-jre-slim 
 
 # Install maven
 RUN apt-get update

java-spring-boot/Dockerfile

@@ -1,4 +1,4 @@
-FROM java:8 
+FROM 9.0.1-11-jre-slim
 
 # Install maven
 RUN apt-get update

js-angularjs/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:6
+FROM node:8
 
 #Install deps
 RUN npm install -g http-server grunt-cli bower yo generator-karma generator-angular

nodejs-express-sass/Dockerfile

@@ -1,4 +1,4 @@
-FROM mhart/alpine-node:7.6.0
+FROM node:8
 WORKDIR /src
 # Add app source files
 ADD app/src /src

nodejs-express/Dockerfile

@@ -1,4 +1,4 @@
-FROM mhart/alpine-node:7.6.0
+FROM node:8
 
 WORKDIR /src
 

php-apache/Dockerfile

@@ -1,4 +1,4 @@
-FROM php:7.1.2-apache
+FROM php:7.2-apache
 
 # Add default apache listener
 COPY app/conf/apache-config.conf /etc/apache2/sites-enabled/000-default.conf

php-laravel/Dockerfile

@@ -1,5 +1,5 @@
 #start with our base image (the foundation) - version 7.1.5
-FROM php:7.1.5-apache
+FROM php:7.2-apache
 
 #install all the system dependencies and enable PHP modules 
 RUN apt-get update && apt-get install -y \  

python-flask/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.5.2-alpine
+FROM python:3.7.0a3
 
 WORKDIR /usr/src/app
 

react/Dockerfile

@@ -1,6 +1,6 @@
 FROM node:8
 
-#Alpine APK Manager had build issues so replaced them.
+# Install build essential and python
 RUN apt-get update && apt-get install -y build-essential python
 
 #Install deps

schemaspy/Dockerfile

@@ -1,4 +1,4 @@
-FROM java:8
+FROM 9.0.1-11-jre-slim
 
 RUN apt-get update
 

serverless-functions/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:2.7-alpine
+FROM python:3.7.0a3-alpine3.7
 
 WORKDIR /deploy
 
@@ -11,4 +11,4 @@ COPY config.json /deploy/config.json
 
 COPY functions /deploy/functions
 
-CMD ["python", "deploy.py"]
+CMD ["python", "deploy.py"]