Configuration Management: Stability in Your Pipeline sascha bates. Saturday, November 2, 13

Transcription

1 Configuration Management: Stability in Your Pipeline sascha bates

2 sascha bates blog.brattyredhead.com Twin Cities Infracoders The Ship Show Podcast

3 Automation Consultant

4 credentials? In love with CM since 2010 victim and perpetuator of inconsistency over the years

5 The Problem Environments Run Amok

6 Environments Run Amok configuration management homogenous environments consistent process

7 A tool is just a tool

8 it s what you do with it that matters

9 Environments... who cares?

10 This Never Happens incorrect/incomplete deployment instructions

11 This Never Happens wrong database connection string deployed to Production

12 This Never Happens smtp server fixed by hand then forgotten

13 This Never Happens test apache server with special configs

14 This Never Happens ssh keys pushed by hand

15 What Happened?

16 Two Failures

17 Two Failures Communication

18 Two Failures Communication Ownership

19 Communication people gotta talk

20 Communication DEVOPS people gotta talk

21 Communication DEVOPS BASIC HUMANITY people gotta talk

22 Technical Ownership Dev and Test are the Cinderellas of Environments

23 Environments are complex

24 Environments are unloved

25 Environments become unloveable

26 Environments are necessary

27 So Many Things... and none of them belong in your code build

28 So Many Things... packages and versions and none of them belong in your code build

29 So Many Things... packages and versions mail servers and none of them belong in your code build

30 So Many Things... packages and versions mail servers multiple data centers and none of them belong in your code build

31 So Many Things... packages and versions mail servers multiple data centers database users and passwords and none of them belong in your code build

32 So Many Things... packages and versions mail servers multiple data centers database users and passwords connection strings and none of them belong in your code build

33 So Many Things... packages and versions mail servers multiple data centers database users and passwords connection strings integration URLs and none of them belong in your code build

34 So Many Things... packages and versions mail servers multiple data centers database users and passwords connection strings integration URLs deployments and none of them belong in your code build

35 So Many Things... packages and versions mail servers multiple data centers database users and passwords connection strings integration URLs deployments batch jobs and none of them belong in your code build

36

37 Configuration Management to the rescue

38 Eliminate Mistakes Ensure Consistency Automate Complexity Separation of Duties

39 Eliminate Mistakes people out of the pipeline

40 Eliminate Mistakes people out of the pipeline

41 Ensure Consistency one OS build to rule them all

42 Ensure Consistency easy one OS build to rule them all

43 Ensure Consistency easy fast one OS build to rule them all

44 Ensure Consistency easy fast reliable one OS build to rule them all

45 Ensure Consistency easy fast reliable server builds one OS build to rule them all

46 Ensure Consistency yum install tomcat or download random tomcat; install Packages

47 Ensure Consistency yum install tomcat or download random tomcat; install Packages

48 Ensure Consistency WRONG yum install tomcat or download random tomcat; install Packages

49 Ensure Consistency package 'apache' do version action :install end Packages

50 Ensure Consistency package 'apache' do version node[ apache ][ version ] action :install end Packages

51 Ensure Consistency locate environmentspecific configurations outside the codebase Central Configurations

52 Automate Complexity your 5 year old bash scripts not cutting it

53 Automate Complexity stop running around to multiple servers

54 Automate Complexity app version bump trigger deployment actions across multiple tiers stop running around to multiple servers

55 Separation of Duties

56 confidence