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I know that some of the advantages of Ansible over many other CMs are these:

  1. Ansible's scripts being written in YAML, a simple serialization language.
  2. The fact that one doesn't have to install it on the machines you deploy its commands/playbooks.
  3. Ansible's strong user base and community (for example, galaxy-roles)

I know there is another bold different, using the "push" method" instead of some other CMs using the "pull" method.

What is the difference here? Maybe it reflects difference 2?

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In Ansible push mode, a centralized server connects to other target servers and runs a series of commands to set the target servers into a desired state. Because the centralized server can potentially serve hundreds or thousands of target systems, this can put quite a bit of load on the centralized system.

In pull mode, each system acts as its own server, allowing for greater scalability since no single server is forced to take on a high load of serving many target systems.

Ansible Pull Documentaion

  • +1. Wouldn't you say than then pull is always better than push? Like learning someone to grow their own vegetables instead giving them just vegetables? – JohnDoea Dec 27 '18 at 1:55
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    A pull model distributes the load, at the added cost of a small bit of configuration, resulting in scalable deployments. "Always" isn't an engineering term, there are too many tradeoffs to make. – stolenmoment Dec 27 '18 at 12:30

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