enterprise rails hosting 3 ways to scale - 2011-10
DESCRIPTION
Your project is evolving just fine, you have a steady, non-linear growth and your roadmap is tightly packed. You feel hosting issues become more and more time consuming. So what to do? In this talk we will see that the answer to this question is not as easy as: "we'll jump into the cloud". More than this three different ways to solve this problem will be presented: high-end hardware, commodity hardware and a cloud deployment scenario. This gives you options to choose from. For each scenario an exemplary system design illustrating its hosting structure will be shown. We will workout individual pros and cons which need to be considered carefully in respect to your individual requirements. In order to support your decision making we will draft a rough decision tree to help you picking the best possible scenario for your situation. So at the end of the talk should be able to plan your next scale out step, easily.TRANSCRIPT
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Enterprise Hosting for Ruby on Rails
Julian [email protected]
http://www.enterprise-rails.de
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Introduction
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IntroductionAbout me
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About meJulian Fischer‣Twitter: http://www.twitter.com/railshoster‣E-Mail: [email protected]
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About meJulian Fischer‣Twitter: http://www.twitter.com/railshoster‣E-Mail: [email protected]
‣ CEO of Avarteq GmbH
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About meJulian Fischer‣Twitter: http://www.twitter.com/railshoster‣E-Mail: [email protected]
‣ CEO of Avarteq GmbH
‣ Lecturer „Ruby on Rails“ @ HTWdS
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About meJulian Fischer‣Twitter: http://www.twitter.com/railshoster‣E-Mail: [email protected]
‣ CEO of Avarteq GmbH
‣ Lecturer „Ruby on Rails“ @ HTWdS
‣ Ruby und Ruby on Rails programmer
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About meJulian Fischer‣Twitter: http://www.twitter.com/railshoster‣E-Mail: [email protected]
‣ CEO of Avarteq GmbH
‣ Lecturer „Ruby on Rails“ @ HTWdS
‣ Ruby und Ruby on Rails programmer
‣ Entperise-Rails.de - Head of Hosting
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IntroductionAbout Avarteq GmbH
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@railshoster
About Avarteq GmbH
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@railshoster
‣ Founded in Nov. 2008 from two existing companies.
About Avarteq GmbH
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@railshoster
‣ Founded in Nov. 2008 from two existing companies.
‣ Involvment of Key-Systems GmbHmanages ~2,5 * 10^6 domains for customers of 200+ countries.
About Avarteq GmbH
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@railshoster
‣ Founded in Nov. 2008 from two existing companies.
‣ Involvment of Key-Systems GmbHmanages ~2,5 * 10^6 domains for customers of 200+ countries.
‣ Team size: ~20 people>16 full-time
About Avarteq GmbH
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IntroductionAssumptions for this talk
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@railshoster
Assumptions for this talk
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@railshoster
‣ Ruby and Ruby on Rails architectures to be hosted.
Assumptions for this talk
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@railshoster
‣ Ruby and Ruby on Rails architectures to be hosted.
‣ Hosting basics you know what a LB is and what it does.
Assumptions for this talk
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@railshoster
‣ Ruby and Ruby on Rails architectures to be hosted.
‣ Hosting basics you know what a LB is and what it does.
‣ You are interested in a methodology to determine a suitable hosting solution for you. And you don‘t need to see Ruby code in a presentation to like it :-)
Assumptions for this talk
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@railshoster
‣ Ruby and Ruby on Rails architectures to be hosted.
‣ Hosting basics you know what a LB is and what it does.
‣ You are interested in a methodology to determine a suitable hosting solution for you. And you don‘t need to see Ruby code in a presentation to like it :-)
Assumptions for this talk
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Hosting todayand in the near future
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The future of hostingcan be found in the cloud.
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But not on EC2.
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US Cloud providers do to hosting what Starbucks did to coffee.
From $1 with free refill to ...
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More and more free or achievable cloud
technologies emerge.
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@railshoster
Hosting today and in the future
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@railshoster
‣ Eucalyptus
Hosting today and in the future
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@railshoster
‣ Eucalyptus
‣ OpenStack
Hosting today and in the future
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@railshoster
‣ Eucalyptus
‣ OpenStack
‣ vCloud
Hosting today and in the future
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@railshoster
‣ Eucalyptus
‣ OpenStack
‣ vCloud
‣ ...
Hosting today and in the future
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Many „smaller“ clouds will become available
within the next few years.
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Additional abstraction layers will be established.
Helping to stay independent or even mash up existing clouds.
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Abstraction via services
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„Start an instance on an internal cloud, then with the same code start another on EC2 or Rackspace.
Deltacloud protects your apps from cloud API changes and incompatibilities, so you can concentrate on managing cloud
instances the way you want.“
http://incubator.apache.org/deltacloud/
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Client side abstraction
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Fog
„Collections provide a simplified interface, making clouds easier
to work with and switch between.“
https://github.com/geemus/fog
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So be prepared for the cloud.Design your app scalable.
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BUT
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For nowConsider your options.
Pick carefully.
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Making a decision requires options to choose from.
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Know your options!
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3 Hosting ScenariosOverview
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@railshoster
3 Hosting Scenarios
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@railshoster
‣ Cloud Hosting
3 Hosting Scenarios
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@railshoster
‣ Cloud Hosting
‣ Commodity Hardware Cluster
3 Hosting Scenarios
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@railshoster
‣ Cloud Hosting
‣ Commodity Hardware Cluster
‣ High End Hardware Cluster
3 Hosting Scenarios
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3 Hosting ScenariosCloud Hosting
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Cloud HostingUrban Legends
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@railshoster
Urban Legends
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@railshoster
‣ Cloud technologies are wonderful
Urban Legends
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@railshoster
‣ Cloud technologies are wonderful
‣ People become euphoric
Urban Legends
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@railshoster
‣ Cloud technologies are wonderful
‣ People become euphoric
‣ Marketing people oversimplify advantages
Urban Legends
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@railshoster
‣ Cloud technologies are wonderful
‣ People become euphoric
‣ Marketing people oversimplify advantages
‣ People want do believe
Urban Legends
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#1 Go to the cloud
and get rid of sys ops.
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@railshoster
Urban Legends
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@railshoster
‣ The hole decision process should be accompanied by an experienced sys op. You don‘t need plenty of workhours here but you definitely want to have advice here and there.
Urban Legends
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@railshoster
‣ The hole decision process should be accompanied by an experienced sys op. You don‘t need plenty of workhours here but you definitely want to have advice here and there.
‣ You‘re still running unix services. Depending on how custom your system is you will need sys ops helping to configure your services accordingly. Template configs from the community might not fit your scenario. How much memory do you got? You have to adapt cache sizes, number of Passenger processes to be spawned, ...
Urban Legends
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@railshoster
Urban Legends
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@railshoster
‣ Who writes your chef recipies? Who writes your service configuration templates? Who tweaks your database?
Urban Legends
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@railshoster
‣ Who writes your chef recipies? Who writes your service configuration templates? Who tweaks your database?
‣ Every got a mistery failure? Which shouldn‘t be there but actually is. Library dependency issues, sporadic network problems, spontenously failing processes, ...
Urban Legends
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@railshoster
‣ Who writes your chef recipies? Who writes your service configuration templates? Who tweaks your database?
‣ Every got a mistery failure? Which shouldn‘t be there but actually is. Library dependency issues, sporadic network problems, spontenously failing processes, ...
‣ Who recovers from serious failures? Taking your backups and refills production databases.
Urban Legends
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Who gets up at night?
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Not having a sys op means ...
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@railshoster
Urban Legends
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@railshoster
‣ Making a mistakes potentially causing a lot of trouble. It‘s so hard to be a sys op and programmer at once. These roles have different perspectives, by nature.
Urban Legends
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@railshoster
‣ Making a mistakes potentially causing a lot of trouble. It‘s so hard to be a sys op and programmer at once. These roles have different perspectives, by nature.
‣ Accpeting drawbacks by not focusing on service configurations, ...
Urban Legends
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@railshoster
‣ Making a mistakes potentially causing a lot of trouble. It‘s so hard to be a sys op and programmer at once. These roles have different perspectives, by nature.
‣ Accpeting drawbacks by not focusing on service configurations, ...
‣ Having people acting like sys ops sbd. performing sys op tasks can be considered a sys op. Even if he/she looks like a programmer :-)
Urban Legends
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#2 Go to the cloud and
have no outages any more.
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@railshoster
Urban Legends
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@railshoster
‣ Data center issues can‘t be avoided From experience, there will be network outages caused by switches, routes, broken wires, whatever. http://rh.gd/nMNSUK as an example.
Urban Legends
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@railshoster
‣ Data center issues can‘t be avoided From experience, there will be network outages caused by switches, routes, broken wires, whatever. http://rh.gd/nMNSUK as an example.
‣ Self healing can‘t recover every issue Resetting your computer often helps. Hence it‘s a good guess. But it does not help all the time. Do you really want to distract your programmers to dig through unix service logs? Ineffective.
Urban Legends
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@railshoster
‣ Data center issues can‘t be avoided From experience, there will be network outages caused by switches, routes, broken wires, whatever. http://rh.gd/nMNSUK as an example.
‣ Self healing can‘t recover every issue Resetting your computer often helps. Hence it‘s a good guess. But it does not help all the time. Do you really want to distract your programmers to dig through unix service logs? Ineffective.
‣ Autoscaling won‘t keep your service up unless you set it up correctly AND your autoscale settings either match the situation or be very aggressive (wasting money). Do you really want to scale out on a DDoS attack?
Urban Legends
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#3 Go to the cloud and
save money.
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@railshoster
Urban Legends
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@railshoster
‣ Not true for every case. You have to do the math.
Urban Legends
Samstag, 15. Oktober 11
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@railshoster
‣ Not true for every case. You have to do the math.
‣ Actually it‘s pretty expensive.
Urban Legends
Samstag, 15. Oktober 11
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#4 Go to the cloud
it‘s safe.
Samstag, 15. Oktober 11
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@railshoster
Urban Legends
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@railshoster
‣ It‘s simply not There are serious legal issues being discussed.
Urban Legends
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@railshoster
‣ It‘s simply not There are serious legal issues being discussed.
‣ Infrastructure non-transparency Do you really understand the infrastructure topology? If not how can you be sure about your data being kept private?
Urban Legends
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Again. Cloud is a future technology.
But don‘t be blind.
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Cloud HostingPro
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@railshoster
Cloud Hosting
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@railshoster
‣ Maximal flexibility with Auto Scaling
Cloud Hosting
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@railshoster
‣ Maximal flexibility with Auto Scaling
‣ Grow & Shrink start and stop (app/server) instances. Shut down what you don‘t need and pay per use.
Cloud Hosting
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@railshoster
‣ Maximal flexibility with Auto Scaling
‣ Grow & Shrink start and stop (app/server) instances. Shut down what you don‘t need and pay per use.
‣ Robustness with auto healing.
Cloud Hosting
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@railshoster
‣ Maximal flexibility with Auto Scaling
‣ Grow & Shrink start and stop (app/server) instances. Shut down what you don‘t need and pay per use.
‣ Robustness with auto healing.
‣ Kill and restart misbehaving components.
Cloud Hosting
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Cloud HostingContra
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@railshoster
Cloud Hosting
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@railshoster
‣ Scale carefully or do you really want to scale out to serve requests to DDoS attack resulting into a FDoS - a financial denial of service by spending all your money? Setup your scaleout rules carefully.
Cloud Hosting
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@railshoster
‣ Scale carefully or do you really want to scale out to serve requests to DDoS attack resulting into a FDoS - a financial denial of service by spending all your money? Setup your scaleout rules carefully.
‣ Autohealing within limits switch off - switch on it not always a suitable repair strategy. Nothing replaces an experienced sysop! It‘s just reducing his workload taking away no brainer tasks.
Cloud Hosting
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@railshoster
Cloud Hosting
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@railshoster
‣ Causes legal issues for EU companies putting data to a US providers. http://rh.gd/p6l26y (german). In certain scenarios virtualizatin is completely forbidden (e.g. certain levels of pci compliance).
Cloud Hosting
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@railshoster
‣ Causes legal issues for EU companies putting data to a US providers. http://rh.gd/p6l26y (german). In certain scenarios virtualizatin is completely forbidden (e.g. certain levels of pci compliance).
‣ Unreasonable expensive compared to physical hardware. 4 - 20 times more for similar performance. Depending on your cloud provider and instance/resource type.
Cloud Hosting
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@railshoster
‣ Causes legal issues for EU companies putting data to a US providers. http://rh.gd/p6l26y (german). In certain scenarios virtualizatin is completely forbidden (e.g. certain levels of pci compliance).
‣ Unreasonable expensive compared to physical hardware. 4 - 20 times more for similar performance. Depending on your cloud provider and instance/resource type.
‣ You are a number by being one in a million customers. Don‘t expect reasonable help when needed.
Cloud Hosting
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Did you know?
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3 Hosting ScenariosCommodity Hardware
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Commodity HardwarePro
Samstag, 15. Oktober 11
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@railshoster
Commodity Hardware
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@railshoster
‣ „Cheap“ hardware in huge datacenters.
Commodity Hardware
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@railshoster
‣ „Cheap“ hardware in huge datacenters.
‣ Traffic included.
Commodity Hardware
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@railshoster
‣ „Cheap“ hardware in huge datacenters.
‣ Traffic included.
‣ Private GBit backnet available. Physically dedicated
Commodity Hardware
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@railshoster
‣ „Cheap“ hardware in huge datacenters.
‣ Traffic included.
‣ Private GBit backnet available. Physically dedicated
‣ Maximum performance from your budget. Get a E3 Xenion
Quad Core 1245, 16 GB ECC RAM, 2*3TB HDD for 69 € / month.
Commodity Hardware
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@railshoster
Commodity Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ Why would you scale out if you already have plenty of workforce for your money? That‘s a simple thought. A very good option especially if you know your load and grow rate.
Commodity Hardware
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@railshoster
‣ Why would you scale out if you already have plenty of workforce for your money? That‘s a simple thought. A very good option especially if you know your load and grow rate.
‣ No legal issues for EU companies.
Commodity Hardware
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Commodity HardwareContra
Samstag, 15. Oktober 11
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@railshoster
Commodity Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ You are a number by being one in a couple of thousand customers. Expect response and repair times within 30 min to 24h.
Commodity Hardware
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@railshoster
‣ You are a number by being one in a couple of thousand customers. Expect response and repair times within 30 min to 24h.
‣ Scaling less flexible. Server relocation might be necessary. Server setup fees make shrink operations expensive.
Commodity Hardware
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@railshoster
‣ You are a number by being one in a couple of thousand customers. Expect response and repair times within 30 min to 24h.
‣ Scaling less flexible. Server relocation might be necessary. Server setup fees make shrink operations expensive.
‣ Hardware is not high end. Smart system design needed to compensate eventual hardware failures.
Commodity Hardware
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3 Hosting ScenariosHigh End Hardware
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High End HardwarePro
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@railshoster
High End Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ High end hardware in well staffed datacenters. Close contact to data center technicians. Quick responses. Fast failure recovery.
High End Hardware
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@railshoster
‣ High end hardware in well staffed datacenters. Close contact to data center technicians. Quick responses. Fast failure recovery.
‣ Very realiable hardware. Hardware RAID, hot swappable hdds, redundant power supplies, ...
High End Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ High end hardware in well staffed datacenters. Close contact to data center technicians. Quick responses. Fast failure recovery.
‣ Very realiable hardware. Hardware RAID, hot swappable hdds, redundant power supplies, ...
‣ Private GBit backnet available. Physically dedicated
High End Hardware
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@railshoster
‣ High end hardware in well staffed datacenters. Close contact to data center technicians. Quick responses. Fast failure recovery.
‣ Very realiable hardware. Hardware RAID, hot swappable hdds, redundant power supplies, ...
‣ Private GBit backnet available. Physically dedicated
‣ Maximum performance. Get multi cpu servers with 2 x 6
XENON Cores, up to 192 GB RAM, SAS and SDD hdds, ...
High End Hardware
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@railshoster
High End Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ Custom equipped servers can be built specific for their individual purposes. A server with fast cpus and SSD disks will boost your DB service, for example.
High End Hardware
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@railshoster
‣ Custom equipped servers can be built specific for their individual purposes. A server with fast cpus and SSD disks will boost your DB service, for example.
‣ Vertical scale outs Servers can be upgraded by adding more memory, better CPUs, more hdds, ...
High End Hardware
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@railshoster
‣ Custom equipped servers can be built specific for their individual purposes. A server with fast cpus and SSD disks will boost your DB service, for example.
‣ Vertical scale outs Servers can be upgraded by adding more memory, better CPUs, more hdds, ...
‣ Hybdrid solutions with private clouds. If there‘s a private cloud co-located in the datacenter you can have physical machines to encounter ground loads and use a cloud workforce to serve peaks.
High End Hardware
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@railshoster
High End Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ Scale outs New servers can be added. High end data centers usually provide advanced switching technologies with vlan capabilities.
High End Hardware
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@railshoster
‣ Scale outs New servers can be added. High end data centers usually provide advanced switching technologies with vlan capabilities.
‣ No legal issues for EU companies.
High End Hardware
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High End HardwareContra
Samstag, 15. Oktober 11
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@railshoster
High End Hardware
Samstag, 15. Oktober 11
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@railshoster
‣ More expensive than cheap hw Still much cheaper than cloud resources for a comparable performance.
High End Hardware
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@railshoster
‣ More expensive than cheap hw Still much cheaper than cloud resources for a comparable performance.
‣ Contract durations Due to financial write offs contract lifetimes are usually longer than for commodity servers or cloud resources.
High End Hardware
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Proceed systematically.
Think. Evaluate. Think again.
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How to build a hostingAn exemplary process
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An exemplary processRequirements Analysis
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@railshoster
Requirements Analysis
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@railshoster
‣ Budget Calculate roughly 2.5 to 5% of your overall project costs.
Requirements Analysis
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@railshoster
‣ Budget Calculate roughly 2.5 to 5% of your overall project costs.
‣ Expected Load
Requirements Analysis
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@railshoster
‣ Budget Calculate roughly 2.5 to 5% of your overall project costs.
‣ Expected Load
‣ Ground load Present on a daily basis.
Requirements Analysis
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@railshoster
‣ Budget Calculate roughly 2.5 to 5% of your overall project costs.
‣ Expected Load
‣ Ground load Present on a daily basis.
‣ Peak load Triggered by (external) events.
Requirements Analysis
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@railshoster
Requirements Analysis
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@railshoster
‣ Desired Response Time How many ms to serve.
Requirements Analysis
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@railshoster
‣ Desired Response Time How many ms to serve.
‣ Desired Availability Uptime / Downtime ratio.
Requirements Analysis
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@railshoster
‣ Desired Response Time How many ms to serve.
‣ Desired Availability Uptime / Downtime ratio.
‣ Geographic Targeting Where are your users located?
Requirements Analysis
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@railshoster
‣ Desired Response Time How many ms to serve.
‣ Desired Availability Uptime / Downtime ratio.
‣ Geographic Targeting Where are your users located?
‣ Estimated Growth 1 month, 6 month, 12 months.
Requirements Analysis
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@railshoster
Requirements Analysis
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@railshoster
‣ Legal constraints Be aware of privacy law issues.
Requirements Analysis
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@railshoster
‣ Legal constraints Be aware of privacy law issues.
‣ Technical constraints e.g. ugly Windows legacy stuff.
Requirements Analysis
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@railshoster
‣ Legal constraints Be aware of privacy law issues.
‣ Technical constraints e.g. ugly Windows legacy stuff.
‣ Competence Know how to run an app in production?
Requirements Analysis
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An exemplary processIdentify System Components
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@railshoster
Identify System Components
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@railshoster
‣ Which components are present? search server, background processing, key/value store, replicating rdbms, ...
Identify System Components
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@railshoster
‣ Which components are present? search server, background processing, key/value store, replicating rdbms, ...
‣ Eliminate SPOFs Try to have everything crucial twice+.
Identify System Components
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An exemplary processChoose Platform
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@railshoster
Choose Platform
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@railshoster
‣ Which platform matches your requirements best? Shrink/Scale, cheap workforce or rock solid?
Choose Platform
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@railshoster
‣ Which platform matches your requirements best? Shrink/Scale, cheap workforce or rock solid?
‣ (Really) need resources on demand? Or is it just for the case that ... If you need to grow and shrink, cloud providers will to the trick.
Choose Platform
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@railshoster
‣ Which platform matches your requirements best? Shrink/Scale, cheap workforce or rock solid?
‣ (Really) need resources on demand? Or is it just for the case that ... If you need to grow and shrink, cloud providers will to the trick.
‣ Want to have the maximum performance from your budget? Then hardware might be your choice.
Choose Platform
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@railshoster
Choose Platform
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@railshoster
‣ Geographic location Where are your users.
Choose Platform
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@railshoster
‣ Geographic location Where are your users.
‣ You and the supply chain Are you a number or a customer? Do you have access to technical staff?
Choose Platform
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@railshoster
‣ Geographic location Where are your users.
‣ You and the supply chain Are you a number or a customer? Do you have access to technical staff?
‣ Quality of Service What are the response times? How fast do they repair?
Choose Platform
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An exemplary processInitial Dimension
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@railshoster
Initial Dimension
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@railshoster
‣ Know your app To match your desired response time you‘ll need to know your app‘s resource consumption. At least roughly.
Initial Dimension
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@railshoster
‣ Know your app To match your desired response time you‘ll need to know your app‘s resource consumption. At least roughly.
‣ Create a system design draft. Decide where to run which system component. The smaller your building blocks are the better.
Initial Dimension
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@railshoster
‣ Know your app To match your desired response time you‘ll need to know your app‘s resource consumption. At least roughly.
‣ Create a system design draft. Decide where to run which system component. The smaller your building blocks are the better.
‣ Estimate the # servers you need. And decide about scaleout settings if you‘re on a cloud plattform.
Initial Dimension
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@railshoster
‣ Know your app To match your desired response time you‘ll need to know your app‘s resource consumption. At least roughly.
‣ Create a system design draft. Decide where to run which system component. The smaller your building blocks are the better.
‣ Estimate the # servers you need. And decide about scaleout settings if you‘re on a cloud plattform.
‣ Order servers or whatever you rely on.
Initial Dimension
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An exemplary processSystem Design
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@railshoster
System Design
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@railshoster
‣ Detailed System Design Describes where to run what. How to use what resource when and how. How what to connects to what.
System Design
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@railshoster
‣ Detailed System Design Describes where to run what. How to use what resource when and how. How what to connects to what.
‣ Monitoring plan. Monitor everything your app relies on. This will give you diagnosis information when you need it. So plan what to monitor how.
System Design
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@railshoster
‣ Detailed System Design Describes where to run what. How to use what resource when and how. How what to connects to what.
‣ Monitoring plan. Monitor everything your app relies on. This will give you diagnosis information when you need it. So plan what to monitor how.
‣ Backup plan. Data can be lost. Be prepared and think about where your app produces valuable data to be backuped.
System Design
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An exemplary processInstallation(automation)
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@railshoster
Installation(automation)
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@railshoster
‣ Get a bluprint of your hosting Use Chef.
Installation(automation)
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@railshoster
‣ Get a bluprint of your hosting Use Chef.
‣ Describe how to setup every system component. Keep your recipies small and simple.
Installation(automation)
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@railshoster
‣ Get a bluprint of your hosting Use Chef.
‣ Describe how to setup every system component. Keep your recipies small and simple.
‣ Be ready for a deployment. You have successfully automated your installation process if you can run cap deploy afterwards.
Installation(automation)
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An exemplary processStrengthen your system.
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@railshoster
Strengthen your system
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@railshoster
‣ Your app need dependent processes? Use a process monitor such as kickstart, monit or god to keep them alive. Double check with nagios for a system health status.
Strengthen your system
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@railshoster
‣ Your app need dependent processes? Use a process monitor such as kickstart, monit or god to keep them alive. Double check with nagios for a system health status.
‣ Make your servers reboot proof. Your system needs to get back to normal on a black out automatically.
Strengthen your system
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@railshoster
‣ Your app need dependent processes? Use a process monitor such as kickstart, monit or god to keep them alive. Double check with nagios for a system health status.
‣ Make your servers reboot proof. Your system needs to get back to normal on a black out automatically.
‣ Desaster and Recovery planning. What is the most likely error event? What is the impact? How to fix it?
Strengthen your system
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@railshoster
‣ Your app need dependent processes? Use a process monitor such as kickstart, monit or god to keep them alive. Double check with nagios for a system health status.
‣ Make your servers reboot proof. Your system needs to get back to normal on a black out automatically.
‣ Desaster and Recovery planning. What is the most likely error event? What is the impact? How to fix it?
‣ Simulate disasters. Test your recovery plans.
Strengthen your system
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An exemplary processDeployment
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@railshoster
Installation(automation)
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@railshoster
‣ Use a deployment tool. Not really worth mentioning but just to be complete. Do I have to mention capistrano?
Installation(automation)
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@railshoster
‣ Use a deployment tool. Not really worth mentioning but just to be complete. Do I have to mention capistrano?
‣ Setup Capistrano. Cap deploy. Shouldn‘t need more than that for the average case. Automate whatever you can. Make it foolproof.
Installation(automation)
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An exemplary processTest && Launch
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@railshoster
Test && Launch
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@railshoster
‣ Test your setup. Perform acceptance tests. Partly covered by
your desaster simulations. Also test with your customer, your users, ...
Test && Launch
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@railshoster
‣ Test your setup. Perform acceptance tests. Partly covered by
your desaster simulations. Also test with your customer, your users, ...
‣ Go live! Cover your eyes and pray :-)
Test && Launch
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Lessons LearnedKey Statements to remember
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@railshoster
Lessons Learned
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@railshoster
‣ Creating a hosting. Should be considered to be a project. Process it systematically.
Lessons Learned
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@railshoster
‣ Creating a hosting. Should be considered to be a project. Process it systematically.
‣ Be aware of people holding a hammer. Because if you got a hammer everything you see is a nail.
Lessons Learned
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@railshoster
‣ Creating a hosting. Should be considered to be a project. Process it systematically.
‣ Be aware of people holding a hammer. Because if you got a hammer everything you see is a nail.
‣ Make decisions. No decision without choices. Know your options.
Lessons Learned
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@railshoster
‣ Creating a hosting. Should be considered to be a project. Process it systematically.
‣ Be aware of people holding a hammer. Because if you got a hammer everything you see is a nail.
‣ Make decisions. No decision without choices. Know your options.
‣ Reduce sysop work. But running an app is a pain and burdon for most developers.
Lessons Learned
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Focus on adding value to your business.
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Focus on your app.
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Thank youfor your
attention!
Headquarter:http://www.avarteq.de
Blog:http://ww.treibstofff.de
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rails.com
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