rt1(z9 host) unbound(role) kea_dhcp(role): create unbound and kea_dhcp role for rt1

- create unbound role
- create kea_dhcp role
- configure unbound and keadhcp on rt1(z9 host)

roles/kea_dhcp/templates/stork-agent.env.jinja

@@ -0,0 +1,44 @@
+### the IP or hostname to listen on for incoming Stork server connections
+# STORK_AGENT_HOST=
+
+### the TCP port to listen on for incoming Stork server connections
+# STORK_AGENT_PORT=8081
+
+### listen for commands from the Stork server only, but not for Prometheus requests
+# STORK_AGENT_LISTEN_STORK_ONLY=true
+
+{% if kea_dhcp__stork_agent.prometheus_only %}
+### listen for Prometheus requests only, but not for commands from the Stork server
+STORK_AGENT_LISTEN_PROMETHEUS_ONLY=true
+{% endif %}
+
+### settings for exporting stats to Prometheus
+### the IP or hostname on which the agent exports Kea statistics to Prometheus
+# STORK_AGENT_PROMETHEUS_KEA_EXPORTER_ADDRESS=
+### the port on which the agent exports Kea statistics to Prometheus
+# STORK_AGENT_PROMETHEUS_KEA_EXPORTER_PORT=
+## enable or disable collecting per-subnet stats from Kea
+# STORK_AGENT_PROMETHEUS_KEA_EXPORTER_PER_SUBNET_STATS=true
+### the IP or hostname on which the agent exports BIND 9 statistics to Prometheus
+# STORK_AGENT_PROMETHEUS_BIND9_EXPORTER_ADDRESS=
+### the port on which the agent exports BIND 9 statistics to Prometheus
+# STORK_AGENT_PROMETHEUS_BIND9_EXPORTER_PORT=
+
+### Stork Server URL used by the agent to send REST commands to the server during agent registration
+# STORK_AGENT_SERVER_URL=
+
+### skip TLS certificate verification when the Stork Agent connects
+### to Kea over TLS and Kea uses self-signed certificates
+# STORK_AGENT_SKIP_TLS_CERT_VERIFICATION=true
+
+
+### Logging parameters
+
+### Set logging level. Supported values are: DEBUG, INFO, WARN, ERROR
+STORK_LOG_LEVEL=DEBUG
+### disable output colorization
+# CLICOLOR=false
+
+### path to the hook directory
+# STORK_AGENT_HOOK_DIRECTORY=
+