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tls
tls
 
 
README.md
README.md
 
 
setup.sh
setup.sh
 
 
teardown.sh
teardown.sh
 
 
test-ca.crt
test-ca.crt
 
 
values.yaml
values.yaml
 
 
zilla.yaml
zilla.yaml
 
 

README.md

tls.reflect

Listens on tls port 23456 and will echo back whatever is sent to the server, broadcasting to all clients.

Requirements

  • bash, jq, nc
  • Kubernetes (e.g. Docker Desktop with Kubernetes enabled)
  • kubectl
  • helm 3.0+
  • openssl

Setup

The setup.sh script:

  • installs Zilla to the Kubernetes cluster with helm and waits for the pod to start up
  • starts port forwarding
./setup.sh

output:

+ ZILLA_CHART=oci://ghcr.io/aklivity/charts/zilla
+ helm upgrade --install zilla-tls-reflect oci://ghcr.io/aklivity/charts/zilla --namespace zilla-tls-reflect --create-namespace --wait [...]
NAME: zilla-tls-reflect
LAST DEPLOYED: [...]
NAMESPACE: zilla-tls-reflect
STATUS: deployed
REVISION: 1
NOTES:
Zilla has been installed.
[...]
+ nc -z localhost 23456
+ kubectl port-forward --namespace zilla-tls-reflect service/zilla 23456
+ sleep 1
+ nc -z localhost 23456
Connection to localhost port 23456 [tcp/*] succeeded!

Verify behavior

Connect each client first, then send Hello, one from first client, then send Hello, two from second client.

openssl s_client -connect localhost:23456 -CAfile test-ca.crt -quiet -alpn echo

output:

depth=1 C = US, ST = California, L = Palo Alto, O = Aklivity, OU = Development, CN = Test CA
verify return:1
depth=0 C = US, ST = California, L = Palo Alto, O = Aklivity, OU = Development, CN = localhost
verify return:1

Type a Hello, one message and press enter.

output:

Hello, one
Hello, one
Hello, two

openssl s_client -connect localhost:23456 -CAfile test-ca.crt -quiet -alpn echo

output:

depth=1 C = US, ST = California, L = Palo Alto, O = Aklivity, OU = Development, CN = Test CA
verify return:1
depth=0 C = US, ST = California, L = Palo Alto, O = Aklivity, OU = Development, CN = localhost
verify return:1

Type a Hello, two message and press enter.

output:

Hello, one
Hello, two
Hello, two

Teardown

The teardown.sh script stops port forwarding, uninstalls Zilla and deletes the namespace.

./teardown.sh

output:

+ pgrep kubectl
99999
+ killall kubectl
+ helm uninstall zilla-reflect --namespace zilla-reflect
release "zilla-reflect" uninstalled
+ kubectl delete namespace zilla-reflect
namespace "zilla-reflect" deleted