github.com/dmaizel/tests@v0.0.0-20210728163746-cae6a2d9cee8/integration/kubernetes/k8s-cpu-ns.bats (about)

     1  #!/usr/bin/env bats
     2  #
     3  # Copyright (c) 2018 Intel Corporation
     4  #
     5  # SPDX-License-Identifier: Apache-2.0
     6  #
     7  
     8  load "${BATS_TEST_DIRNAME}/../../.ci/lib.sh"
     9  load "${BATS_TEST_DIRNAME}/tests_common.sh"
    10  fc_limitations="https://github.com/kata-containers/documentation/issues/351"
    11  
    12  setup() {
    13  	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
    14  
    15  	export KUBECONFIG="${KUBECONFIG:-$HOME/.kube/config}"
    16  	pod_name="constraints-cpu-test"
    17  	container_name="first-cpu-container"
    18  	sharessyspath="/sys/fs/cgroup/cpu/cpu.shares"
    19  	quotasyspath="/sys/fs/cgroup/cpu/cpu.cfs_quota_us"
    20  	periodsyspath="/sys/fs/cgroup/cpu/cpu.cfs_period_us"
    21  	total_cpus=2
    22  	total_requests=512
    23  	total_cpu_container=1
    24  
    25  	get_pod_config_dir
    26  }
    27  
    28  @test "Check CPU constraints" {
    29  	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
    30  
    31  	# Create the pod
    32  	kubectl create -f "${pod_config_dir}/pod-cpu.yaml"
    33  
    34  	# Check pod creation
    35  	kubectl wait --for=condition=Ready --timeout=$timeout pod "$pod_name"
    36  
    37  	retries="10"
    38  
    39  	num_cpus_cmd='grep -e "^processor" /proc/cpuinfo |wc -l'
    40  	# Check the total of cpus
    41  	for _ in $(seq 1 "$retries"); do
    42  		# Get number of cpus
    43  		total_cpus_container=$(kubectl exec pod/"$pod_name" -c "$container_name" \
    44  			-- sh -c "$num_cpus_cmd")
    45  		# Verify number of cpus
    46  		[ "$total_cpus_container" -le "$total_cpus" ]
    47  		[ "$total_cpus_container" -eq "$total_cpus" ] && break
    48  		sleep 1
    49  	done
    50  	[ "$total_cpus_container" -eq "$total_cpus" ]
    51  
    52  	# Check the total of requests
    53  	total_requests_container=$(kubectl exec $pod_name -c $container_name \
    54  		-- sh -c "cat $sharessyspath")
    55  
    56  	[ "$total_requests_container" -eq "$total_requests" ]
    57  
    58  	# Check the cpus inside the container
    59  
    60  	total_cpu_quota=$(kubectl exec $pod_name -c $container_name \
    61  		-- sh -c "cat $quotasyspath")
    62  
    63  	total_cpu_period=$(kubectl exec $pod_name -c $container_name \
    64  		-- sh -c "cat $periodsyspath")
    65  
    66  	division_quota_period=$(echo $((total_cpu_quota/total_cpu_period)))
    67  
    68  	[ "$division_quota_period" -eq "$total_cpu_container" ]
    69  }
    70  
    71  teardown() {
    72  	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
    73  
    74  	# Debugging information
    75  	kubectl describe "pod/$pod_name"
    76  
    77  	kubectl delete pod "$pod_name"
    78  }