mirror of https://github.com/kubernetes/kops.git
59 lines
1.8 KiB
Markdown
59 lines
1.8 KiB
Markdown
# Lyft CNI
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The [lyft cni-ipvlan-vpc-k8s](https://github.com/lyft/cni-ipvlan-vpc-k8s) plugin uses Amazon Elastic Network Interfaces (ENI) to assign AWS-managed IPs to Pods using the Linux kernel's IPvlan driver in L2 mode.
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## Installing
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Read the [prerequisites](https://github.com/lyft/cni-ipvlan-vpc-k8s#prerequisites) before starting. In addition to that, you need to specify the VPC ID as `spec.networkID` in the cluster spec file.
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To use the Lyft CNI, specify the following in the cluster spec.
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```yaml
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networking:
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lyftvpc: {}
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```
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in the cluster spec file or pass the `--networking lyftvpc` option on the command line to kOps:
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```console
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$ export ZONES=mylistofzones
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$ kops create cluster \
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--zones $ZONES \
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--master-zones $ZONES \
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--master-size m4.large \
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--node-size m4.large \
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--networking lyftvpc \
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--yes \
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--name myclustername.mydns.io
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```
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## Configuring
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### Specify subnet selector
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You can specify which subnets to use for allocating Pod IPs by specifying
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```yaml
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networking:
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lyftvpc:
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subnetTags:
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KubernetesCluster: myclustername.mydns.io
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```
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In this example, new interfaces will be attached to subnets tagged with `KubernetesCluster = myclustername.mydns.io`.
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### Change the download location
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By default the plugin is downloaded from Github at node startup. This location can be changed using environment variables
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```bash
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export LYFT_VPC_DOWNLOAD_URL="https://example.com/cni-ipvlan-vpc-k8s-amd64-v0.6.0.tar.gz"
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export LYFT_VPC_DOWNLOAD_HASH="3aadcb32ffda53990153790203eb72898e55a985207aa5b4451357f9862286f0"
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```
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The hash can be MD5, SHA1 or SHA256.
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## Troubleshooting
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In case of any issues the directory `/var/log/aws-routed-eni` contains the log files of the CNI plugin. This directory is located in all the nodes in the cluster.
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