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Wraps the kea-dhcp chart (github.com/mglants/charts) as an ArgoCD Application, following the karma/dex external-chart pattern with chrony-style site-only scoping. Starts with upstream chart defaults.
The kea namespace can't be deployed to right now, so route the kea Application there as a stopgap. Revert this once kea namespace works.
DHCP needs to be reachable from the physical network, not just in-cluster, so default the kea-dhcp service to LoadBalancer for all sites.
The kea-dhcp chart (v0.7.1, and current main) renders invalid YAML when service.dhcp.annotations is non-empty. Sites needing an annotated LoadBalancer endpoint should add their own standalone Service in their deploy-repo overlay instead, so leave the chart's own Service at defaults (ClusterIP).
This reverts commit 1310e62. We cannot use option 234, because the flex_option expression only has access to the DHCPDISCOVER, not reservations.
Instead of sending a request to a traditional kubernetes Service, we must send the request to all of the pods. In order to do that, we make a DNS lookup on the headless service and send the request to all of the pods using the service's port.
The success return was outside the try/except but inside the attempt loop, so it always returned (or raised IndexError) after the first attempt regardless of success. Retries never actually ran, silently dropping reservations for ports that hit a transient request failure.
…move list.pop() expects an index, not a value; passing the reservation dict raised TypeError, silently swallowed by the broad except clause, so clean_dhcp_opts never actually removed reservations.
These prints were left over from troubleshooting the Kea cleaning path and would spam stdout in production; route them through the standard oslo logger instead.
Centralizes all direct Kea Control Agent communication (endpoint discovery, retries, config read-modify-write) behind a single in-process lock in a new kea_proxy REST service, so concurrent reservation updates/deletes from Ironic can no longer race and clobber each other's changes. dhcp/kea.py becomes a thin HTTP client of this proxy instead of talking to Kea directly. Adds the ironic-understack-kea-proxy console-script, a single-replica Deployment/Service manifest in components/ironic, and moves/rewrites the driver's test suite to match.
tenacity is already used as transient dependency for ironic, so let's use it.
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