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add bats tests
Change-Id: I203d3c8fbce3a07a13f7d5294793097c61a571f0
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‎.github/workflows/bats.yml‎

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name: bats
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on:
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push:
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branches:
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- 'main'
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tags:
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- 'v*'
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pull_request:
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branches: [ main ]
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workflow_dispatch:
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env:
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GO_VERSION: "1.23"
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K8S_VERSION: "v1.32.0"
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KIND_VERSION: "v0.27.0"
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jobs:
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bats_tests:
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runs-on: ubuntu-22.04
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name: Bats e2e tests
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steps:
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- name: Checkout
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uses: actions/checkout@v2
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- name: Setup Bats and bats libs
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id: setup-bats
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uses: bats-core/bats-action@3.0.0
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- name: Bats tests
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shell: bash
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env:
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BATS_LIB_PATH: ${{ steps.setup-bats.outputs.lib-path }}
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TERM: xterm
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run: bats -o _artifacts tests/
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- name: Upload logs
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if: always()
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uses: actions/upload-artifact@v4
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with:
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name: kind-logs-${{ env.JOB_NAME }}-${{ github.run_id }}
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path: ./_artifacts
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bats_mac_tests:
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runs-on: macos-15
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name: Bats e2e tests on Mac
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steps:
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- name: Checkout
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uses: actions/checkout@v2
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- name: Setup Bats and bats libs
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id: setup-bats
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uses: bats-core/bats-action@3.0.0
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- name: Set up environment (download dependencies)
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run: |
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# For Intel Macs
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[ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/"$KIND_VERSION"/kind-darwin-amd64
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# For M1 / ARM Macs
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[ $(uname -m) = arm64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/"$KIND_VERSION"/kind-darwin-arm64
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chmod +x ./kind
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mv ./kind /usr/local/bin/kind
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- name: Bats tests
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shell: bash
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env:
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BATS_LIB_PATH: ${{ steps.setup-bats.outputs.lib-path }}
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TERM: xterm
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run: bats -o _artifacts tests/
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- name: Upload logs
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if: always()
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uses: actions/upload-artifact@v4
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with:
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name: kind-logs-${{ env.JOB_NAME }}-${{ github.run_id }}
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path: ./_artifacts
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‎tests/README.md‎

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# Integration tests
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1. Install `bats` https://bats-core.readthedocs.io/en/stable/installation.html
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2. Install `kind` https://kind.sigs.k8s.io/
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3. Run `bats tests/`

‎tests/setup_suite.bash‎

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#!/bin/bash
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set -eu
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function setup_suite {
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export BATS_TEST_TIMEOUT=120
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# Define the name of the kind cluster
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export CLUSTER_NAME="ccm-kind"
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# Build the cloud-provider-kind
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cd "$BATS_TEST_DIRNAME"/..
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mkdir -p _artifacts
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rm -rf _artifacts/*
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# create cluster
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cat <<EOF | kind create cluster \
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--name $CLUSTER_NAME \
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-v7 --wait 1m --retain --config=-
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kind: Cluster
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apiVersion: kind.x-k8s.io/v1alpha4
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nodes:
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- role: control-plane
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- role: worker
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- role: worker
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EOF
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make
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nohup bin/cloud-provider-kind -v 2 --enable-log-dumping --logs-dir ./_artifacts > ./_artifacts/ccm-kind.log 2>&1 &
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# test depend on external connectivity that can be very flaky
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sleep 5
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}
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function teardown_suite {
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kind export logs "$BATS_TEST_DIRNAME"/../_artifacts --name "$CLUSTER_NAME"
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kind delete cluster --name "$CLUSTER_NAME"
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}

‎tests/tests.bats‎

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#!/usr/bin/env bats
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setup_file() {
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REPO_ROOT="$( cd "$(dirname "$BATS_TEST_FILENAME")/.." >/dev/null 2>&1 && pwd )"
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cd $REPO_ROOT
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# install cloud-provider-kind
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make
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TMP_DIR=$(mktemp -d)
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export TMP_DIR
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# install `kind` and `kubectl` to tempdir
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curl -sLo "${TMP_DIR}/kubectl" "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
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chmod +x "${TMP_DIR}/kubectl"
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curl -sLo "${TMP_DIR}/kind" https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
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chmod +x "${TMP_DIR}/kind"
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PATH="${TMP_DIR}:${PATH}"
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export PATH
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# create cluster
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kind create cluster --name kccm --wait 1m
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kind get kubeconfig --name kccm > "${TMP_DIR}/kubeconfig"
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" wait --for=condition=ready pods --namespace=kube-system -l k8s-app=kube-dns --timeout=3m
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" label node kccm-control-plane node.kubernetes.io/exclude-from-external-load-balancers-
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# run cloud-provider-kind
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nohup bin/cloud-provider-kind > ${TMP_DIR}/kccm-kind.log 2>&1 &
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CLOUD_PROVIDER_KIND_PID=$(echo $!)
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}
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teardown_file() {
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kill -9 ${CLOUD_PROVIDER_KIND_PID}
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kind delete cluster --name kccm || true
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if [[ -n "${TMP_DIR:-}" ]]; then
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rm -rf "${TMP_DIR}"
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fi
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}
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@test "ExternalTrafficPolicy: Local" {
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" apply -f examples/loadbalancer_etp_local.yaml
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" wait --for=condition=ready pods -l app=MyLocalApp
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kubectl apply -f "$BATS_TEST_DIRNAME"/../examples/loadbalancer_etp_local.yaml
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kubectl wait --for=condition=ready pods -l app=MyLocalApp
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for i in {1..5}
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do
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IP=$(kubectl --kubeconfig "${TMP_DIR}/kubeconfig" get services lb-service-local --output jsonpath='{.status.loadBalancer.ingress[0].ip}')
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IP=$(kubectl get services lb-service-local --output jsonpath='{.status.loadBalancer.ingress[0].ip}')
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[[ ! -z "$IP" ]] && break || sleep 1
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done
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echo $IP
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POD=$(kubectl --kubeconfig "${TMP_DIR}/kubeconfig" get pod -l app=MyLocalApp -o jsonpath='{.items[0].metadata.name}')
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echo $POD
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echo "IP: $IP"
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POD=$(kubectl get pod -l app=MyLocalApp -o jsonpath='{.items[0].metadata.name}')
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echo "Pod $POD"
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for i in {1..5}
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do
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HOSTNAME=$(curl -s http://${IP}:80/hostname || true)
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[[ ! -z "$HOSTNAME" ]] && break || sleep 1
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done
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echo $HOSTNAME
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echo "Hostname via TCP: $HOSTNAME"
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[ "$HOSTNAME" = "$POD" ]
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}
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@test "ExternalTrafficPolicy: Cluster" {
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" apply -f examples/loadbalancer_etp_cluster.yaml
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kubectl --kubeconfig "${TMP_DIR}/kubeconfig" wait --for=condition=ready pods -l app=MyClusterApp
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kubectl apply -f "$BATS_TEST_DIRNAME"/../examples/loadbalancer_etp_cluster.yaml
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kubectl wait --for=condition=ready pods -l app=MyClusterApp
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for i in {1..5}
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do
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IP=$(kubectl get services lb-service-cluster --output jsonpath='{.status.loadBalancer.ingress[0].ip}')
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[[ ! -z "$IP" ]] && break || sleep 1
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done
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echo "IP: $IP"
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POD=$(kubectl get pod -l app=MyClusterApp -o jsonpath='{.items[0].metadata.name}')
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echo "Pod $POD"
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for i in {1..5}
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do
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HOSTNAME=$(curl -s http://${IP}:80/hostname || true)
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[[ ! -z "$HOSTNAME" ]] && break || sleep 1
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done
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echo "Hostname via TCP: $HOSTNAME"
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[ "$HOSTNAME" = "$POD" ]
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}
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@test "Multiple Protocols: UDP and TCP" {
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kubectl apply -f "$BATS_TEST_DIRNAME"/../examples/loadbalancer_etp_cluster.yaml
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kubectl wait --for=condition=ready pods -l app=MyClusterApp
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for i in {1..5}
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do
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IP=$(kubectl --kubeconfig "${TMP_DIR}/kubeconfig" get services lb-service-cluster --output jsonpath='{.status.loadBalancer.ingress[0].ip}')
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IP=$(kubectl get services lb-service-cluster --output jsonpath='{.status.loadBalancer.ingress[0].ip}')
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[[ ! -z "$IP" ]] && break || sleep 1
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done
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echo $IP
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POD=$(kubectl --kubeconfig "${TMP_DIR}/kubeconfig" get pod -l app=MyClusterApp -o jsonpath='{.items[0].metadata.name}')
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echo $POD
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echo "IP: $IP"
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POD=$(kubectl get pod -l app=MyClusterApp -o jsonpath='{.items[0].metadata.name}')
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echo "Pod $POD"
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for i in {1..5}
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do
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HOSTNAME=$(curl -s http://${IP}:80/hostname || true)
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[[ ! -z "$HOSTNAME" ]] && break || sleep 1
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done
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echo $HOSTNAME
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echo "Hostname via TCP: $HOSTNAME"
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[ "$HOSTNAME" = "$POD" ]
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for i in {1..5}
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do
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HOSTNAME=$(echo hostname | timeout 5 nc -u ${IP} 80 || true)
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[[ ! -z "$HOSTNAME" ]] && break || sleep 1
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done
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echo "Hostname via UDP: $HOSTNAME"
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[ "$HOSTNAME" = "$POD" ]
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}

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