What steps did you take and what happened:
# Create cluster
kind create cluster
clusterctl init --infrastructure docker --ipam metal3
# Create namespace, IPPool and IPClaim
kubectl create namespace test-ns
kubectl apply -f - <<EOF
apiVersion: ipam.metal3.io/v1alpha1
kind: IPPool
metadata:
name: ippool-a
namespace: test-ns
spec:
namePrefix: "a-prefix"
pools:
- start: "192.168.1.10"
end: "192.168.1.100"
subnet: "192.168.1.0/24"
prefix: 24
gateway: "192.168.1.1"
prefix: 24
gateway: "192.168.1.1"
---
apiVersion: ipam.metal3.io/v1alpha1
kind: IPClaim
metadata:
name: a-claim
namespace: test-ns
spec:
pool:
name: ippool-a
namespace: test-ns
EOF
# Create second pool with same name prefix and ip range.
# Observe how creating the second claim silently fails
kubectl apply -f - <<EOF
apiVersion: ipam.metal3.io/v1alpha1
kind: IPPool
metadata:
name: ippool-b
namespace: test-ns
spec:
namePrefix: "a-prefix" # <-- duplicates IPPool-A
pools:
- start: "192.168.1.10"
end: "192.168.1.10"
prefix: 24
---
apiVersion: ipam.metal3.io/v1alpha1
kind: IPClaim
metadata:
name: b-claim
namespace: test-ns
spec:
pool:
name: ippool-b
namespace: test-ns
EOF
kubectl describe ippool -n test-ns ippool-b
# Does not show event for IPAddress creation
kubectl describe ipclaim -n test-ns b-claim
# Doesn not show allocated IP
kubectl get ipaddress.ipam.metal3.io -n test-ns
# Shows only one IPAddress
# NAME AGE
# a-prefix-192-168-1-10 8m48sWhat did you expect to happen:
I expect there to be no silent failures.
Anything else you would like to add:
The issue happens because Kubernetes API prevents creating object with same kind/name/namespace combos. IPaddress name is created based on IPPool namePrefex and allocated IP.
Environment:
- Cluster-api version: 1.13
- IPAM version: 1.13
- environment: kind cluster with
clusterctl init --infrastructure docker --ipam metal3
/kind bug
What steps did you take and what happened:
What did you expect to happen:
I expect there to be no silent failures.
Anything else you would like to add:
The issue happens because Kubernetes API prevents creating object with same kind/name/namespace combos. IPaddress name is created based on IPPool namePrefex and allocated IP.
Environment:
clusterctl init --infrastructure docker --ipam metal3/kind bug