istio.io/archive/v1.8/docs/tasks/traffic-management/mirroring/test.sh

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#!/usr/bin/env bash
# shellcheck disable=SC1090,SC2154
# Copyright Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# shellcheck disable=SC2155
set -e
set -u
set -o pipefail
# @setup profile=default
kubectl label namespace default istio-injection= --overwrite
snip_before_you_begin_1
snip_before_you_begin_2
snip_before_you_begin_3
snip_before_you_begin_4
# wait for deployments
_wait_for_deployment default httpbin-v1
_wait_for_deployment default httpbin-v2
_wait_for_deployment default sleep
snip_creating_a_default_routing_policy_1
# wait for config
_wait_for_istio virtualservice default httpbin
_wait_for_istio destinationrule default httpbin
_verify_contains snip_creating_a_default_routing_policy_2 "headers"
_verify_contains snip_creating_a_default_routing_policy_3 "GET /headers HTTP/1.1"
_verify_not_contains snip_creating_a_default_routing_policy_4 "GET /headers HTTP/1.1"
snip_mirroring_traffic_to_v2_1
# wait for config
_wait_for_istio virtualservice default httpbin
# Set environment variables. TODO: why didn't the exports from snip_creating_a_default_routing_policy_2/3/4 take?
export SLEEP_POD=$(kubectl get pod -l app=sleep -o jsonpath={.items..metadata.name})
export V1_POD=$(kubectl get pod -l app=httpbin,version=v1 -o jsonpath={.items..metadata.name})
export V2_POD=$(kubectl get pod -l app=httpbin,version=v2 -o jsonpath={.items..metadata.name})
snip_mirroring_traffic_to_v2_2
# TODO: This should check for 2 lines with the GET request
_verify_contains snip_mirroring_traffic_to_v2_3 "GET /headers HTTP/1.1"
_verify_contains snip_mirroring_traffic_to_v2_4 "GET /headers HTTP/1.1"
# @cleanup
set +e # ignore cleanup errors
snip_cleaning_up_1
snip_cleaning_up_2