unkinben
d3fb5dcd1a
Replace the ISC dhcpd PXE-boot VM with a Kea DHCP Kubernetes operator, modelled on bind-operator. The operator renders kea-dhcp4 config from CRs and runs an HA pair of kea-dhcp4 + kea-ctrl-agent servers behind an anycast Service. - add KeaCluster/KeaSubnet/KeaClientClass/KeaAPI CRDs (group kea.unkin.net) - render deterministic kea-dhcp4.conf + kea-ctrl-agent.conf into a ConfigMap and roll the StatefulSet via a config-hash annotation; best-effort hot-reload via the kea-ctrl-agent REST channel - run HA hot-standby (memfile leases) with stable per-peer DNS identity from a StatefulSet; expose an anycast LoadBalancer Service for PureLB - represent the full legacy dhcpd config: 198.18.13-17.0/24 pools, pool-less 198.18.25.0/24, and the Legacy/UEFI-64 PXE arch classes (option 93) - add the KeaAPI-spawned REST service: Terraform-friendly CRUD over subnet and client-class CRs (stable IDs, PUT upsert, 404 drift, bearer-token auth) - add Makefile (patch/minor/major tag targets), distroless operator/api images, an AlmaLinux+EPEL kea workload image, and woodpecker CI with k8s resources + serviceAccountName on every step - unit tests for config rendering, controller reconcile/config-hash, and the API Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
package kea
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// Filesystem and binary paths inside the kea container image, plus the
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// operator's label/annotation vocabulary.
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const (
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// ContainerDHCP4 is the kea-dhcp4 container name.
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ContainerDHCP4 = "kea-dhcp4"
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// ContainerCtrlAgent is the kea-ctrl-agent container name.
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ContainerCtrlAgent = "kea-ctrl-agent"
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// ConfigDir is where projected config is mounted read-only.
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ConfigDir = "/etc/kea-operator"
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// RunDir is a shared emptyDir for the config copy and control socket.
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RunDir = "/run/kea"
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// DHCP4ConfPath is the runtime kea-dhcp4 config.
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DHCP4ConfPath = RunDir + "/kea-dhcp4.conf"
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// CtrlAgentConfPath is the runtime kea-ctrl-agent config.
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CtrlAgentConfPath = RunDir + "/kea-ctrl-agent.conf"
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// CtrlSocketPath is the unix control socket between ctrl-agent and dhcp4.
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CtrlSocketPath = RunDir + "/kea4-ctrl-socket"
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// EntrypointPath is the generated container entrypoint.
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EntrypointPath = ConfigDir + "/entrypoint.sh"
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// DHCP4Bin is the kea-dhcp4 server binary.
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DHCP4Bin = "/usr/sbin/kea-dhcp4"
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// CtrlAgentBin is the kea-ctrl-agent binary.
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CtrlAgentBin = "/usr/sbin/kea-ctrl-agent"
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// HooksDir holds the Kea hook libraries.
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HooksDir = "/usr/lib64/kea/hooks"
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// HALibrary is the High Availability hook.
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HALibrary = HooksDir + "/libdhcp_ha.so"
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// LeaseCmdsLibrary is the lease commands hook (required by HA lease sync).
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LeaseCmdsLibrary = HooksDir + "/libdhcp_lease_cmds.so"
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// CtrlAgentPort is the REST control channel port.
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CtrlAgentPort = 8000
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// DHCP4Port is the DHCPv4 server port.
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DHCP4Port = 67
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// DefaultImage is the kea workload image built by this repo.
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DefaultImage = "git.unkin.net/unkin/kea:latest"
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// ClientArchOption is the DHCP option code carrying PXE client arch.
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ClientArchOption = 93
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)
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