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tests: k8s: Retry output of kubectl exec in k8s-cpu-ns

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We are seeing failures in this test, where the output of
the kubectl exec command seems to be blank, so try
retrying the exec like #11024

Fixes: #11133
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
This commit is contained in:
stevenhorsman
2025-04-11 14:37:52 +01:00
parent 8045cb982c
commit f2a2117252
2 changed files with 30 additions and 7 deletions
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35
tests/integration/kubernetes/k8s-cpu-ns.bats
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@@ -66,8 +66,18 @@ setup() {
# Check the total of cpus
for _ in $(seq 1 "$retries"); do
# Get number of cpus
total_cpus_container=$(kubectl exec pod/"$pod_name" -c "$container_name" \
# Retry "kubectl exec" several times in case it unexpectedly returns an empty output string,
# in an attempt to work around issues similar to https://github.com/kubernetes/kubernetes/issues/124571.
for _ in {1..10}; do
total_cpus_container=$(kubectl exec pod/"$pod_name" -c "$container_name" \
-- "${exec_num_cpus_cmd[@]}")
if [[ -n "${total_cpus_container}" ]]; then
break
fi
warn "Empty output from kubectl exec" >&2
sleep 1
done
# Verify number of cpus
[ "$total_cpus_container" -le "$total_cpus" ]
[ "$total_cpus_container" -eq "$total_cpus" ] && break
@@ -76,16 +86,29 @@ setup() {
[ "$total_cpus_container" -eq "$total_cpus" ]
# Check the total of requests
total_requests_container=$(kubectl exec $pod_name -c $container_name \
-- "${exec_weightsyspath_cmd[@]}")
for _ in {1..10}; do
total_requests_container=$(kubectl exec $pod_name -c $container_name \
-- "${exec_weightsyspath_cmd[@]}")
if [[ -n "${total_requests_container}" ]]; then
break
fi
warn "Empty output from kubectl exec" >&2
sleep 1
done
info "total_requests_container = $total_requests_container"
[ "$total_requests_container" -eq "$total_requests" ]
# Check the cpus inside the container
read total_cpu_quota total_cpu_period <<< $(kubectl exec $pod_name -c $container_name \
-- "${exec_maxsyspath_cmd[@]}")
for _ in {1..10}; do
maxsyspath=$(kubectl exec $pod_name -c $container_name -- "${exec_maxsyspath_cmd[@]}")
if [[ -n "${maxsyspath}" ]]; then
break
fi
warn "Empty output from kubectl exec" >&2
sleep 1
done
read total_cpu_quota total_cpu_period <<< ${maxsyspath}
division_quota_period=$(echo $((total_cpu_quota/total_cpu_period)))