Add an end-to-end test script.

Starting with a pristine cluster, it initially deploys the controller
and unready Services for Varnish Ingress, and verifies the deployment.

Then each of the examples are deployed, verified, and undeployed.

On exit the Services for Ingress and controller are undeployed,
restoring the pristine state of the cluster.

test/e2e.sh

+#! /bin/bash -ex
+
+function undeploy_and_clear {
+    cd ${MYPATH}/../deploy
+    ./undeploy.sh
+    ./clear.sh
+}
+
+MYPATH="$( cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 ; pwd -P )"
+trap undeploy_and_clear EXIT
+
+export TESTOPTS=-v
+
+echo Test initial deployment, and Varnish Ingress deployment
+cd ${MYPATH}/../deploy/
+./init.sh
+./deploy.sh
+./verify.sh
+
+echo "Hello, world!" example
+cd ${MYPATH}/../examples/hello/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Single namespace example
+cd ${MYPATH}/../examples/namespace/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Varnish Pod template with CLI args example
+cd ${MYPATH}/../examples/varnish_pod_template/
+./deploy_cli-args.sh
+./verify_cli-args.sh
+
+echo Varnish Pod template with PROXY protocol example
+./deploy_proxy.sh
+./verify_proxy.sh
+
+echo Varnish Pod template with env settings example
+./deploy_env.sh
+./verify_env.sh
+
+./undeploy.sh
+
+echo Cluster-wide Ingress example
+cd ${MYPATH}/../examples/architectures/clusterwide/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Example with a cluster-wide Ingress and a namespace-specific Ingress
+cd ${MYPATH}/../examples/architectures/cluster-and-ns-wide/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Multiple Varnish Services in a namespace example
+cd ${MYPATH}/../examples/architectures/multi-varnish-ns/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Multiple Ingress controllers example
+cd ${MYPATH}/../examples/architectures/multi-controller/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Custom VCL example
+cd ${MYPATH}/../examples/custom-vcl/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Self-sharding cluster example
+cd ${MYPATH}/../examples/self-sharding/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Basic Authentication example
+cd ${MYPATH}/../examples/authentication/
+./deploy_basic_auth.sh
+./verify_basic_auth.sh
+./undeploy_basic_auth.sh
+
+echo Proxy Authentication example
+./deploy_proxy_auth.sh
+./verify_proxy_auth.sh
+./undeploy_proxy_auth.sh
+
+echo Combined ACL and Basic Authentication example
+./deploy_acl_or_auth.sh
+./verify_acl_or_auth.sh
+./undeploy_acl_or_auth.sh
+
+echo Access control list examples
+cd ${MYPATH}/../examples/acl/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Rewrite rule examples
+cd ${MYPATH}/../examples/rewrite/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+echo Request disposition examples: re-implementing default vcl_recv
+cd ${MYPATH}/../examples/req-disposition/
+./deploy_builtin.sh
+./verify_builtin.sh
+./undeploy_builtin.sh
+
+echo Request disposition examples: alternative re-implemention of default vcl_recv
+./deploy_alt-builtin.sh
+./verify_alt-builtin.sh
+./undeploy_alt-builtin.sh
+
+echo Request disposition examples: pass on certain cookies, lookup on all others
+./deploy_pass-on-session-cookie.sh
+./verify_pass-on-session-cookie.sh
+./undeploy_pass-on-session-cookie.sh
+
+echo Request disposition examples: cacheability rules by URL path pattern
+./deploy_cacheability.sh
+./verify_cacheability.sh
+./undeploy_cacheability.sh
+
+echo Request disposition examples: URL white- and blacklisting
+./deploy_url-whitelist.sh
+./verify_url-whitelist.sh
+./undeploy_url-whitelist.sh
+
+echo Request disposition examples: PURGE method
+./deploy_purge.sh
+./verify_purge.sh
+./undeploy_purge.sh
+
+echo BackendConfig example
+cd ${MYPATH}/../examples/backend-config/
+./deploy.sh
+./verify.sh
+./undeploy.sh
+
+exit 0