Releasing our user-level documentation repository

Today we’re releasing a new user-level knowledge base of our products and services. It’s aimed to help you be more confident and autonomous in managing your applications on our platforms. You can find it in the following GitHub repository: https://github.com/skyscrapers/documentation

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Teleport upgrade to 2.7.5

Teleport has been upgraded to version 2.7.5 for all users. This upgrade includes various bugfixes and performance improvements, as well as additional functionality such as scp (secure copy) from the web interface.

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Vault data is now backed up

Our Vault setup is configured to store the data in a DynamoDB table, using Vault DynamoDB storage backend. DynamoDB already replicates all the data in a table across three availability zones, giving Vault high availability and data durability. From today, we’re also enabling point-in-time recovery for the DynamoDB table, which provides continuous backups of the data for the last 35 days. This will give you the possibility to restore your Vault data in case it gets deleted or corrupted by accident, or you just want to go to a previous state.

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Reduced number of NAT gateways

We’ve reduced the number of NAT gateways per VPC. In the previous setup we created one NAT gateway per VPC where we routed all the non-k8s traffic, and we had three NAT gateways just for the k8s cluster (one for each Availability Zone). In total we ended up having 4 NAT gateways per environment, plus one for the tools stack, so a total of 9.

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Concourse version 4.2.1 upgrade

We’ve upgraded all the Concourse setups to the latest available version, that’s 4.2.1. As you might have read in the previous post from concourse we were working on the upgrade to Concourse 4.1. During that process we ran into some bugs that we had to mitigate. Early this week Concourse released v4.2 and a day later 4.2.1. We decided to immediately upgrade our test cluster to this version and when everything was stable also upgrade our customer clusters.

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Concourse version 4.1.0 upgrade

We’ve upgraded all the Concourse setups to the latest available version, that’s 4.1.0. We have upgraded our test concourse cluster from v3.14.1 to v4.1.0. Customer clusters will follow shortly after we have confirmed there are no issues with our workloads.

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Better networking monitoring

We’ve improved the monitoring for the Kubernetes clusters monitoring component, a.k.a. Calico. We’ll now have more insights in how the networking is behaving in case of trouble. You’ll see there’s an extra dashboard in Grafana showing some interesting metrics from Calico.