Docker Swarm

This weeks challenge. Automate the creation of a docker swarm.

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6 steps to becoming a cloud expert

Though the cloud means different things to different people, as a basic concept, it’s really very simple. Instead of storing data and running applications on your home or work computer, it’s stored and processed on remote machines that are accessed via the Internet. This alternative method of computing has spawned a variety of new concepts, technologies and services, some of which have made their cross back into the in-house environment in the form of private clouds.

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persistent data for docker and the cloud

There are two types of data when we talk about computing, non-persistent or temporary data, and persistent data.

Non-persistent

Temporary data has a sliding scale also,

  • a random number for a decision in an online game; required but lasts less than a second,
  • a session ID for tracking your login details on a website; usually lasts for the length of that session, upto about 30-45 minutes,
  • the contents of a shopping basket at an online shop; amazon keeps this for days, even years.
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software design principles according to Neil Millard and John Romero

This week ‘ I’ve been mainly checking ‘ Infrastructure As Code, IAC for a new mongodb cluster. One of my design and implementation principles states:

  • only pay for the server, when your team needs it
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Work from home, is it working?

The theme of the week has been geography. Listening to Startup CEO, in which Matt Blumberg states strongly, that having a central office for as long as you can is important for that human connection, serendipitous conversations and culture. This is in contrast to virtual or home working. How connected are we to physical geography and at the same time, connected to a virtual world?

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