Redis Session Buildpack

This is a supply buildpack that will detect the bounded redis service instance and modifies the web.config with the sessionState and machineKey sections.

• Uses Steeltoe connectors to build the connection configuration
• Any existing sessionState section(s) will be replaced with a custom one with valid connection string
• Any existing machineKey section(s) will be replaced with new validation and decryption keys

Benefits of using this buildpack

• No code change required to persist session to redis, when pushing any ASP.NET application to PCF
• So it reduces the effort in lifting and shifting a legacy ASP.NET application to PCF

Pre-requisites

• PCF environment with redis tile in market place
• A redis service instance created with Lua-scripting enabled
• cf push access to the PCF enviromnment

Usage Instructions

To enable redis backed session in the application, please follow the below steps.

• Install nuget package Microsoft.Web.RedisSessionStateProvider in your application, preferrably the latest one.
• Add the buildpack in your application manifest.yml as in the example below. You can pick the latest release from https://github.com/cloudfoundry-community/redis-session-aspnet-buildpack/releases

---
applications:
- name: redis-buildpack-sample
  memory: 1024M
  stack: windows2016
  buildpacks:
   - https://github.com/cloudfoundry-community/redis-session-aspnet-buildpack/releases/download/1.0.0/redis-session-buildpack-win-x64.zip
   - https://github.com/cloudfoundry/hwc-buildpack/releases/download/v3.1.8/hwc-buildpack-windows2016-v3.1.8.zip
  services:
   - my_redis_service

• To bind the application to the redis service to the application, add your redis service instance name in the manifest.yml as above
• Push the application to PCF, you will be seeing logs as below

=================== Redis Session Buildpack execution started ==================
================================================================================
-----> Removing existing machineKey configuration...
-----> Creating machineKey section with new validation, decryption keys and SHA1 validation...
-----> Removing existing session configurations...
-----> Found redis connection 'xxxxxxxxxxxxxxx,password=xxxxxxxxxxxxxxxxxxx,allowAdmin=false,abortConnect=true,resolveDns=false,ssl=false'
-----> Creating sessionState section with the above connection string...
================================================================================
=================== Redis Session Buildpack execution completed ================

If you come across any issues, kindly raise an issue at https://github.com/cloudfoundry-community/redis-session-aspnet-buildpack/issues. You are also welcome to contribute.