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Displaying posts with tag: cloudflare (reset)

Working with CloudFlare DNS in python
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Last week I wrote about aDNS discovery feature in Etcd. As a step in the whole process we need to create DNS records in twindb.com zone. CloudFlare provides rich API to work with it. We wrapped it into a Python module twindb_cloudflare and opensourced it:

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Setting up Etcd cluster with DNS discovery
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Setting up an etcd cluster with DNS discovery may be challenging. There are several building blocks:

  • Etcd – a distributed key value store
  • Amazon EC2 – cloud computing provider
  • Cloudflare – DNS provider
  • Chef – for configuring individual nodes

Each of them has their pitfalls, we will guide you through whole process.

DNS discovery

Any clustered system needs a way to maintain a list of nodes in a cluster. Usually you need to specify all cluster members when starting a node. This is the way …

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Cloudflare, now offering to be your Single Point of Failure
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There have been many articles about the downtime issue with Cloudflare last week, so I won’t get into the technical details of that. However, there’s the fine print to remember. Consider this a subtle reminder that core Internet infrastructure services like Cloudflare’s DNS-based “Always Online” caching and packet inspection security services do not come with Service Level Agreements even at the “Pro” account level. Even with a Pro account you are paying for a service with no uptime guarantee and you must only hope that it resolves your sites the majority of the time. This is fine, this is what the contract says: no …

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