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124f01beb3
Change pod runAsUser value of a Deployment after generating the Deployment's policy, and verify that the Deployment fails due to this change. Signed-off-by: Dan Mihai <dmihai@microsoft.com>
80 lines
2.9 KiB
Bash
80 lines
2.9 KiB
Bash
#!/usr/bin/env bats
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#
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# Copyright (c) 2024 Microsoft.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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load "${BATS_TEST_DIRNAME}/../../common.bash"
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load "${BATS_TEST_DIRNAME}/tests_common.sh"
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setup() {
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auto_generate_policy_enabled || skip "Auto-generated policy tests are disabled."
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get_pod_config_dir
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deployment_name="policy-redis-deployment"
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correct_deployment_yaml="${pod_config_dir}/k8s-policy-deployment.yaml"
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# Save some time by executing genpolicy a single time.
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if [ "${BATS_TEST_NUMBER}" == "1" ]; then
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# Add an appropriate policy to the correct YAML file.
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policy_settings_dir="$(create_tmp_policy_settings_dir "${pod_config_dir}")"
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add_requests_to_policy_settings "${policy_settings_dir}" "ReadStreamRequest"
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auto_generate_policy "${policy_settings_dir}" "${correct_deployment_yaml}"
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fi
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# Start each test case with a copy of the correct yaml file.
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incorrect_deployment_yaml="${pod_config_dir}/k8s-policy-deployment-incorrect.yaml"
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cp "${correct_deployment_yaml}" "${incorrect_deployment_yaml}"
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}
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@test "Successful deployment with auto-generated policy and container image volumes" {
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# Initiate deployment
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kubectl apply -f "${correct_deployment_yaml}"
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# Wait for the deployment to be created
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cmd="kubectl rollout status --timeout=1s deployment/${deployment_name} | grep 'successfully rolled out'"
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info "Waiting for: ${cmd}"
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waitForProcess "${wait_time}" "${sleep_time}" "${cmd}"
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}
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test_deployment_policy_error() {
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# Initiate deployment
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kubectl apply -f "${incorrect_deployment_yaml}"
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# Wait for the deployment pod to fail
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wait_for_blocked_request "CreateContainerRequest" "${deployment_name}"
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}
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@test "Policy failure: unexpected UID = 0" {
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# Change the pod UID to 0 after the policy has been generated using a different
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# runAsUser value. The policy would use UID = 0 by default, if there weren't
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# a different runAsUser value in the YAML file.
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yq -i \
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'.spec.template.spec.securityContext.runAsUser = 0' \
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"${incorrect_deployment_yaml}"
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test_deployment_policy_error
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}
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teardown() {
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auto_generate_policy_enabled || skip "Auto-generated policy tests are disabled."
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# Pod debugging information. Don't print the "Message:" line because it contains a truncated policy log.
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info "Pod ${deployment_name}:"
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kubectl describe pod "${deployment_name}" | grep -v "Message:"
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# Deployment debugging information. The --watch=false argument makes "kubectl rollout status"
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# return instead of waiting for a possibly failed deployment to complete.
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info "Deployment ${deployment_name}:"
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kubectl describe deployment "${deployment_name}"
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kubectl rollout status deployment/${deployment_name} --watch=false
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# Clean-up
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kubectl delete deployment "${deployment_name}"
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delete_tmp_policy_settings_dir "${policy_settings_dir}"
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rm -f "${incorrect_deployment_yaml}"
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}
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