--- /dev/null
+#!/usr/bin/env bash
+set -eEux -o pipefail
+
+SCRIPTDIR="$(readlink -f $(dirname ${BASH_SOURCE[0]}))"
+LIBDIR="$(dirname $(dirname ${SCRIPTDIR}))/env/lib"
+
+source $LIBDIR/common.sh
+
+BUILDDIR=${SCRIPTDIR/deploy/build}
+mkdir -p ${BUILDDIR}
+
+function test_setup {
+ clone_istio_repository
+
+ # Create a temporary kubeconfig file for the tests
+ cluster_name=${CLUSTER_1_NAME:-cluster-1}
+ local -r cluster_1_kubeconfig="${BUILDDIR}/${cluster_name}.conf"
+ clusterctl -n metal3 get kubeconfig ${cluster_name} >${cluster_1_kubeconfig}
+ cluster_name=${CLUSTER_2_NAME:-cluster-2}
+ local -r cluster_2_kubeconfig="${BUILDDIR}/${cluster_name}.conf"
+ clusterctl -n metal3 get kubeconfig ${cluster_name} >${cluster_2_kubeconfig}
+
+ # Deploy sleep on cluster-1
+ kubectl --kubeconfig=${cluster_1_kubeconfig} create namespace foo
+ kubectl --kubeconfig=${cluster_1_kubeconfig} label namespace foo istio-injection=enabled
+ cat <<EOF | kubectl --kubeconfig=${cluster_1_kubeconfig} apply -f -
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+ name: psp:privileged-foo
+ namespace: foo
+roleRef:
+ apiGroup: rbac.authorization.k8s.io
+ kind: ClusterRole
+ name: psp:privileged
+subjects:
+- kind: Group
+ name: system:serviceaccounts:foo
+ apiGroup: rbac.authorization.k8s.io
+EOF
+ kubectl --kubeconfig=${cluster_1_kubeconfig} apply -n foo -f ${ISTIOPATH}/samples/sleep/sleep.yaml --wait
+
+ # Deploy httpbin on cluster-2
+ kubectl --kubeconfig=${cluster_2_kubeconfig} create namespace bar
+ kubectl --kubeconfig=${cluster_2_kubeconfig} label namespace bar istio-injection=enabled
+ cat <<EOF | kubectl --kubeconfig=${cluster_2_kubeconfig} apply -f -
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+ name: psp:privileged-bar
+ namespace: bar
+roleRef:
+ apiGroup: rbac.authorization.k8s.io
+ kind: ClusterRole
+ name: psp:privileged
+subjects:
+- kind: Group
+ name: system:serviceaccounts:bar
+ apiGroup: rbac.authorization.k8s.io
+EOF
+ kubectl --kubeconfig=${cluster_2_kubeconfig} apply -n bar -f ${ISTIOPATH}/samples/httpbin/httpbin.yaml --wait
+
+ # Create service entry for httpbin on cluster-1
+ cat <<EOF | kubectl --kubeconfig=${cluster_1_kubeconfig} apply -f -
+apiVersion: networking.istio.io/v1alpha3
+kind: ServiceEntry
+metadata:
+ name: httpbin-bar
+ namespace: foo
+spec:
+ hosts:
+ # DNS name selected for the service
+ - httpbin.bar.cluster2
+ # Treat remote cluster services as part of the service mesh
+ # as all clusters in the service mesh share the same root of trust.
+ location: MESH_INTERNAL
+ ports:
+ - name: tcp
+ number: 8000
+ protocol: TCP
+ resolution: DNS
+ addresses:
+ # the IP address to which httpbin.bar.cluster2 will resolve to
+ # must be unique for each remote service, within a given cluster.
+ # This address need not be routable. Traffic for this IP will be captured
+ # by the sidecar and routed appropriately.
+ - 240.0.0.2
+ endpoints:
+ # This is the routable address of the ingress gateway in cluster2 that
+ # sits in front of sleep.foo service. Traffic from the sidecar will be
+ # routed to this address.
+ - address: $(kubectl --kubeconfig=${cluster_2_kubeconfig} config view | awk -F[/:] '/server/ {print $5}')
+ ports:
+ tcp: 32001 # Nodeport for istio-ingressgateway for port 15433
+EOF
+
+ # Create DestinationRule for httpbin on cluster-1
+ cat <<EOF | kubectl --kubeconfig=${cluster_1_kubeconfig} apply -f -
+apiVersion: networking.istio.io/v1alpha3
+kind: DestinationRule
+metadata:
+ name: httpbin-dr
+ namespace: foo
+spec:
+ host: httpbin.bar.cluster2
+ trafficPolicy:
+ tls:
+ mode: ISTIO_MUTUAL
+EOF
+
+ # Create Gateway resource on cluster-2
+ cat <<EOF | kubectl --kubeconfig=${cluster_2_kubeconfig} apply -f -
+apiVersion: networking.istio.io/v1alpha3
+kind: Gateway
+metadata:
+ name: httpbin-gateway
+ namespace: istio-system
+spec:
+ selector:
+ istio: ingressgateway
+ servers:
+ - port:
+ number: 15443
+ name: tls
+ protocol: TLS
+ tls:
+ mode: AUTO_PASSTHROUGH
+ hosts:
+ - "httpbin.bar.cluster2"
+EOF
+
+ # Create ServiceEntry on cluster-2 that is required to map the
+ # remote fqdn to local fqdn
+ cat <<EOF | kubectl --kubeconfig=${cluster_2_kubeconfig} apply -f -
+apiVersion: networking.istio.io/v1alpha3
+kind: ServiceEntry
+metadata:
+ name: httpbin-remote
+ namespace: istio-system # must be in same namespace as gateway
+spec:
+ resolution: DNS
+ location: MESH_INTERNAL
+ ports:
+ - name: tcp
+ number: 8000
+ protocol: TCP
+ exportTo:
+ - .
+ hosts:
+ - "httpbin.bar.cluster2"
+ endpoints:
+ - address: httpbin.bar.svc.cluster.local
+EOF
+
+ # Create DestinationRule and Virtual Service on cluster-2
+ cat <<EOF | kubectl --kubeconfig=${cluster_2_kubeconfig} apply -f -
+apiVersion: networking.istio.io/v1beta1
+kind: DestinationRule
+metadata:
+ name: httpbin-dr
+ namespace: istio-system
+spec:
+ host: "httpbin.bar.cluster2"
+ trafficPolicy:
+ tls:
+ mode: ISTIO_MUTUAL
+EOF
+}
+
+function httpbin_accessible_from_sleep_service {
+ cluster_name=${CLUSTER_1_NAME:-cluster-1}
+ local -r cluster_1_kubeconfig="${BUILDDIR}/${cluster_name}.conf"
+ local -r sleep_pod=$(kubectl --kubeconfig=${cluster_1_kubeconfig} get -n foo pod -l app=sleep -o jsonpath={.items..metadata.name})
+ kubectl --kubeconfig=${cluster_1_kubeconfig} exec ${sleep_pod} -n foo -c sleep -- curl -I httpbin.bar.cluster2:8000/headers
+}
+
+function test_teardown {
+ cluster_name=${CLUSTER_1_NAME:-cluster-1}
+ local -r cluster_1_kubeconfig="${BUILDDIR}/${cluster_name}.conf"
+ cluster_name=${CLUSTER_2_NAME:-cluster-2}
+ local -r cluster_2_kubeconfig="${BUILDDIR}/${cluster_name}.conf"
+
+ kubectl --kubeconfig=${cluster_2_kubeconfig} -n istio-system delete DestinationRule httpbin-dr --ignore-not-found
+ kubectl --kubeconfig=${cluster_2_kubeconfig} -n istio-system delete ServiceEntry httpbin-remote --ignore-not-found
+ kubectl --kubeconfig=${cluster_2_kubeconfig} -n istio-system delete Gateway httpbin-gateway --ignore-not-found
+
+ kubectl --kubeconfig=${cluster_1_kubeconfig} -n foo delete DestinationRule httpbin-dr --ignore-not-found
+ kubectl --kubeconfig=${cluster_1_kubeconfig} -n foo delete ServiceEntry httpbin-bar --ignore-not-found
+
+ kubectl --kubeconfig=${cluster_2_kubeconfig} -n bar delete -f ${ISTIOPATH}/samples/httpbin/httpbin.yaml --ignore-not-found
+ kubectl --kubeconfig=${cluster_2_kubeconfig} -n bar delete RoleBinding psp:privileged-bar --ignore-not-found
+ kubectl --kubeconfig=${cluster_2_kubeconfig} delete namespace bar --ignore-not-found
+
+ kubectl --kubeconfig=${cluster_1_kubeconfig} -n foo delete -f ${ISTIOPATH}/samples/sleep/sleep.yaml --ignore-not-found
+ kubectl --kubeconfig=${cluster_1_kubeconfig} -n foo delete RoleBinding psp:privileged-foo --ignore-not-found
+ kubectl --kubeconfig=${cluster_1_kubeconfig} delete namespace foo --ignore-not-found
+}
+
+function test_istio {
+ test_setup
+
+ WAIT_FOR_INTERVAL=10s
+ WAIT_FOR_TRIES=6
+ wait_for httpbin_accessible_from_sleep_service
+
+ test_teardown
+}
+
+case $1 in
+ "test") test_istio ;;
+ *) cat <<EOF
+Usage: $(basename $0) COMMAND
+
+The "test" command looks for the CLUSTER_1_NAME and CLUSTER_2_NAME
+variables in the environment (default: "cluster-1" and "cluster-2").
+This should be the name of the Cluster resources to execute the tests
+in.
+
+Commands:
+ test - Test Istio
+EOF
+ ;;
+esac
Code Review / icn.git / commitdiff