mirror of https://github.com/kubernetes/kops.git
Merge pull request #11696 from johngmyers/deprecate-os
Deprecate old OS versions
This commit is contained in:
Kubernetes Prow Robot
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29c85c6d09
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@ -36,18 +36,18 @@ The following table provides the support status for various distros with regards
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| Distro | Experimental | Stable | Deprecated | Removed |
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| ------------ | -----------: | -----: | ---------: | ------: |
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| [Amazon Linux 2](#amazon-linux-2) | 1.10 | 1.18 | - | - |
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| [CentOS 7](#centos-7) | - | 1.5 | - | - |
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| [CentOS 8](#centos-8) | 1.15 | - | - | - |
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| [CoreOS](#coreos) | 1.6 | 1.9 | 1.17 | 1.18 |
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| [Debian 8](#debian-8-jessie) | - | 1.5 | 1.17 | 1.18 |
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| [Debian 9](#debian-9-stretch) | 1.8 | 1.10 | - | - |
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| [CentOS 7](#centos-7) | - | 1.5 | 1.21 | - |
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| [CentOS 8](#centos-8) | 1.15 | - | 1.21 | - |
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| CoreOS | 1.6 | 1.9 | 1.17 | 1.18 |
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| Debian 8 | - | 1.5 | 1.17 | 1.18 |
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| [Debian 9](#debian-9-stretch) | 1.8 | 1.10 | 1.21 | - |
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| [Debian 10](#debian-10-buster) | 1.13 | 1.17 | - | - |
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| [Flatcar](#flatcar) | 1.15.1 | 1.17 | - | - |
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| [Kope.io](#kopeio) | - | - | 1.18 | - |
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| [RHEL 7](#rhel-7) | - | 1.5 | - | - |
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| [RHEL 7](#rhel-7) | - | 1.5 | 1.21 | - |
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| [RHEL 8](#rhel-8) | 1.15 | 1.18 | - | - |
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| [Ubuntu 16.04](#ubuntu-1604-xenial) | 1.5 | 1.10 | 1.17 | 1.20 |
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| [Ubuntu 18.04](#ubuntu-1804-bionic) | 1.10 | 1.16 | - | - |
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| Ubuntu 16.04 | 1.5 | 1.10 | 1.17 | 1.20 |
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| [Ubuntu 18.04](#ubuntu-1804-bionic) | 1.10 | 1.16 | 1.21 | - |
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| [Ubuntu 20.04](#ubuntu-2004-focal) | 1.16.2 | 1.18 | - | - |
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## Supported Distros
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@ -67,55 +67,6 @@ aws ec2 describe-images --region us-east-1 --output table \
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--filters "Name=name,Values=amzn2-ami-hvm-2*-x86_64-gp2"
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```
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### CentOS 7
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CentOS 7 is based on Kernel version **3.10** which has a considerable number of known bugs that affect it and may be noticed in production clusters:
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* [kubernetes/kubernetes#56903](https://github.com/kubernetes/kubernetes/issues/56903)
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* [kubernetes/kubernetes#67577](https://github.com/kubernetes/kubernetes/issues/67577)
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The minimum supported version is **7.4**. Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 125523088429 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=CentOS 7.*x86_64"
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```
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### CentOS 8
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CentOS 8 is based on Kernel version **4.18** which fixes some of the bugs present in RHEL/CentOS 7 and effects are less visible.
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One notable change is the addition of `iptables` NFT, which is the only iptables backend available. This may not be supported by some CNI plugins and should be used with care.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 125523088429 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=CentOS 8.*x86_64"
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```
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### Debian 9 (Stretch)
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Debian 9 is based on Kernel version **4.9** which has a number of known bugs that affect it and which may be noticed with larger clusters:
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This release is **EOL**, which means that the Debian Security Team no longer handles security fixes. That is now the responsibility/purview of the LTS team, which is a group of volunteers who are paid by donations to Debian LTS.
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* [kubernetes/kubernetes#56903](https://github.com/kubernetes/kubernetes/issues/56903)
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* [kubernetes/kubernetes#67577](https://github.com/kubernetes/kubernetes/issues/67577)
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 379101102735 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=debian-stretch-hvm-x86_64-gp2-*"
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```
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### Debian 10 (Buster)
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Debian 10 is based on Kernel version **4.19** which fixes some of the bugs present in Debian 9 and effects are less visible.
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@ -156,6 +107,93 @@ aws ec2 describe-images --region us-east-1 --output table \
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--filters "Name=name,Values=Flatcar-stable-*-hvm"
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```
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### RHEL 8
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RHEL 8 is based on Kernel version **4.18** which fixes some of the bugs present in RHEL/CentOS 7 and effects are less visible.
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One notable change is the addition of `iptables` NFT, which is the only iptables backend available. This may not be supported by some CNI plugins and should be used with care.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 309956199498 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=RHEL-8.*x86_64*"
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```
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### Ubuntu 20.04 (Focal)
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Ubuntu 20.04 is based on Kernel version **5.4** which fixes all the known major Kernel bugs.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 099720109477 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-*"
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```
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## Deprecated Distros
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### CentOS 7
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CentOS 7 is based on Kernel version **3.10** which has a considerable number of known bugs that affect it and may be noticed in production clusters:
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* [kubernetes/kubernetes#56903](https://github.com/kubernetes/kubernetes/issues/56903)
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* [kubernetes/kubernetes#67577](https://github.com/kubernetes/kubernetes/issues/67577)
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The minimum supported version is **7.4**. Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 125523088429 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=CentOS 7.*x86_64"
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```
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### CentOS 8
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CentOS 8 has announced its End Of Life is December 31, 2021.
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CentOS 8 is based on Kernel version **4.18** which fixes some of the bugs present in RHEL/CentOS 7 and effects are less visible.
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One notable change is the addition of `iptables` NFT, which is the only iptables backend available. This may not be supported by some CNI plugins and should be used with care.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 125523088429 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=CentOS 8.*x86_64"
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```
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### Debian 9 (Stretch)
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Debian 9 is based on Kernel version **4.9** which has a number of known bugs that affect it and which may be noticed with larger clusters:
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This release is **EOL**, which means that the Debian Security Team no longer handles security fixes. That is now the responsibility/purview of the LTS team, which is a group of volunteers who are paid by donations to Debian LTS.
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* [kubernetes/kubernetes#56903](https://github.com/kubernetes/kubernetes/issues/56903)
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* [kubernetes/kubernetes#67577](https://github.com/kubernetes/kubernetes/issues/67577)
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 379101102735 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=debian-stretch-hvm-x86_64-gp2-*"
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```
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### Kope.io
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Support for _kope.io_ images is deprecated. These images were the default until Kubernetes 1.18, when they were replaced by the [official Ubuntu 20.04](#ubuntu-2004-focal) images.
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The _kope.io_ images were based on [Debian 9 (Stretch)](#debian-9-stretch) and had all packages required by kOps pre-installed. Other than that, the changes to the official Debian images were [minimal](https://github.com/kubernetes-sigs/image-builder/blob/master/images/kube-deploy/imagebuilder/templates/1.18-stretch.yml#L174-L198).
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### RHEL 7
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RHEL 7 is based on Kernel version **3.10** which has a considerable number of known bugs that affect it and may be noticed in production clusters:
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@ -172,21 +210,6 @@ aws ec2 describe-images --region us-east-1 --output table \
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--filters "Name=name,Values=RHEL-7.*x86_64*"
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```
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### RHEL 8
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RHEL 8 is based on Kernel version **4.18** which fixes some of the bugs present in RHEL/CentOS 7 and effects are less visible.
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One notable change is the addition of `iptables` NFT, which is the only iptables backend available. This may not be supported by some CNI plugins and should be used with care.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 309956199498 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=RHEL-8.*x86_64*"
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```
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### Ubuntu 18.04 (Bionic)
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Ubuntu 18.04 is based on Kernel version **4.15** which has a number of known bugs that affect it and which may be noticed with larger clusters:
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@ -203,41 +226,6 @@ aws ec2 describe-images --region us-east-1 --output table \
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--filters "Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-*"
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```
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### Ubuntu 20.04 (Focal)
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Ubuntu 20.04 is based on Kernel version **5.4** which fixes all the known major Kernel bugs.
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Available images can be listed using:
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```bash
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aws ec2 describe-images --region us-east-1 --output table \
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--owners 099720109477 \
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--query "sort_by(Images, &CreationDate)[*].[CreationDate,Name,ImageId]" \
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--filters "Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-*"
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```
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## Deprecated Distros
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### CoreOS
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Support for CoreOS was removed in kOps 1.18.
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You should consider using [Flatcar](#flatcar) as a replacement.
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### Debian 8 (Jessie)
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Support for Debian 8 (Jessie) was removed in kOps 1.18.
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### Kope.io
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Support for _kope.io_ images is deprecated. These images were the default until Kubernetes 1.18, when they were replaced by the [official Ubuntu 20.04](#ubuntu-2004-focal) images.
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The _kope.io_ images were based on [Debian 9 (Stretch)](#debian-9-stretch) and had all packages required by kOps pre-installed. Other than that, the changes to the official Debian images were [minimal](https://github.com/kubernetes-sigs/image-builder/blob/master/images/kube-deploy/imagebuilder/templates/1.18-stretch.yml#L174-L198).
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### Ubuntu 16.04 (Xenial)
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Support for Ubuntu 16.04 (Xenial) is deprecated and will be removed in kOps 1.20.
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## Owner aliases
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kOps supports owner aliases for the official accounts of supported distros:
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@ -44,10 +44,20 @@ See the [warm pool](https://kops.sigs.k8s.io/instance_groups/#warmpool-aws-only)
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# Deprecations
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* Support for Kubernetes versions 1.15 and 1.16 are deprecated and will be removed in kOps 1.22.
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* Support for Kubernetes versions 1.15 and 1.16 is deprecated and will be removed in kOps 1.22.
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* Support for Kubernetes version 1.17 is deprecated and will be removed in kOps 1.23.
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* Support for CentOS 7 is deprecated and will be removed in future versions of kOps.
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* Support for CentOS 8 is deprecated and will be removed in future versions of kOps.
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* Support for Debian 9 (Stretch) is deprecated and will be removed in future versions of kOps.
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* Support for RHEL 7 is deprecated and will be removed in future versions of kOps.
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* Support for Ubuntu 18.04 (Bionic) is deprecated and will be removed in future versions of kOps.
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* The legacy location for downloads `s3://https://kubeupv2.s3.amazonaws.com/kops/` has been deprecated and will not be used as of kOps 1.22. The new canonical downloads location is `https://artifacts.k8s.io/binaries/kops/`.
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* The [manifest based metrics server addon](https://github.com/kubernetes/kops/tree/master/addons/metrics-server) has been deprecated in favour of a configurable addon.
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@ -36,6 +36,16 @@ This change only affects dedicated API server nodes and worker nodes. It does no
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* Support for Kubernetes version 1.18 is deprecated and will be removed in kOps 1.24.
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* Support for CentOS 7 is deprecated and will be removed in future versions of kOps.
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* Support for CentOS 8 is deprecated and will be removed in future versions of kOps.
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* Support for Debian 9 (Stretch) is deprecated and will be removed in future versions of kOps.
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* Support for RHEL 7 is deprecated and will be removed in future versions of kOps.
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* Support for Ubuntu 18.04 (Bionic) is deprecated and will be removed in future versions of kOps.
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* The [manifest based metrics server addon](https://github.com/kubernetes/kops/tree/master/addons/metrics-server) has been deprecated in favour of a configurable addon.
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* The [manifest based cluster autoscaler addon](https://github.com/kubernetes/kops/tree/master/addons/cluster-autoscaler) has been deprecated in favour of a configurable addon.
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