Configuring TLS without reverse proxy

This document provides the steps to set up TLS on StackState application side with no reverse proxy configured.


Prepare a TLS keypair in PKCS12 format. Certificate should include the hostname by which StackState will be accessed, e.g.

Configure StackState

Step 1. Configure applications

a. Enable TLS for Web UI/API by configuring section stackstate.api.tls in etc/application_stackstate.conf:

tls {
enabled = true
keystore {
path = "/path/to/keystore.pfx"
password = "password"
storeType = "PKCS12"

b. Enable TLS for topology/telemetry receiver by configuring a section stackstate.tls in etc/stackstate-receiver/application.conf:

tls {
enabled = true
keystore {
path = "/path/to/keystore.pfx"
password = "password"
storeType = "PKCS12"

Step 2. Configure the process manager

a. Configure health check URL (properties.receiver-healthcheckuri) in etc/processmanager/processmanager-properties.conf using https protocol and the hostname:

receiver-healthcheckuri = ""

b. (optional, if a self-signed certificate is used) Make process manager trust self-signed certificate by adding the following settings under server.akka section in etc/processmanager/processmanager-properties.conf:

ssl-config {
trustManager = {
stores = [
{type: "PEM", path: "/path/to/certificate-authority.pem"},

Step 3. Configure Stackpacks configuration defaults

Configure the default receiver URL (stackstate.receiver.baseUrl) in etc/application_stackstate.conf using https protocol and the hostname:

stackstate.receiver.baseUrl = ""

Step 4. Apply changes

Restart StackState to apply these changes:

sudo systemctl restart stackstate.service

Configure StackState Agent

Option 1. Agent running in Docker

a. (optional, for self-signed certificates) Prepare a self-signed certificate to be mounted into the container:

mkdir self-signed-certs
cd self-signed-certs
cp /path/to/certificate-authority.pem ./ca.crt
cp ./ca.crt ./ca-certificates.crt

b. Update the docker container parameters with:

  • configured URLs with https and the hostname in environment variables for receiver endpoints

    • STS_STS_URL=

    • STS_APM_URL=


  • (for self-signed) mount prepared certificates into /etc/ssl/certs of a container


docker run -ti --rm\
-e STS_API_KEY=<api key>
-v /path/to/self-signed-certs:/etc/ssl/certs \

Option 2. Agent running on machine

a. Update the receiver URLs using https and the hostname in /etc/stackstate-agent/stackstate.yaml:


b. If a self-signed certificate is used, then import it with the default keystore of the operating system. Ubuntu:

cp /path/to/certificate-authority.pem /usr/local/share/ca-certificates/stackstate.crt # extension .crt is important here
sudo update-ca-certificates