feat(rancher): AWS - Variable to adjust security group ingress cidr#246
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wombelix wants to merge 2 commits intorancher:masterfrom
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feat(rancher): AWS - Variable to adjust security group ingress cidr#246wombelix wants to merge 2 commits intorancher:masterfrom
wombelix wants to merge 2 commits intorancher:masterfrom
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Default for backwards compatibility 0.0.0.0/0, but recommended to lock down public access to a single ip address or a limited range. Additional change in K3s installation: Advertise kube apiserver on internal ip (advertise-address), allow access in addition through public ip (tls-san).
wombelix
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Requires one more adjustment: The workload cluster tries to reach Rancher through the public fqdn, working on it. |
…e on private ip inside vpc Rancher URL is set to a public reachable FQDN based on sslip.io. The workload cluster tries to reach and join Rancher through that public IP. In cases were the ingress CIDR is not 0.0.0.0/0 (recommended), downstream cluster need a way to reach Rancher through the private IP. This is achieved with a split-horizon DNS setup that maps the Rancher FQDN to a private ip inside the VPC.
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Problem addressed with 289682f and successfully tested. |
wombelix
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Default for backwards compatibility 0.0.0.0/0, but recommended to lock down public access to a single ip address or a limited range.
Additional change in K3s installation: Advertise kube apiserver on internal ip (advertise-address), allow access in addition through public ip (tls-san).
This PR improves security by advertising kube apiserver on the internal ip and allowing narrowed down ingress rules. Result is a security group that allows self access and from the CIDR defined in variable
security_group_ingress_cidr.