Added simple daemon mode

rootfs/certs/CAandIoTcert.pem

------BEGIN CERTIFICATE-----
-MIIBQjCB6gIJAK73z82N6W6bMAoGCCqGSM49BAMCMEUxCzAJBgNVBAYTAkFVMRMw
-EQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0
-eSBMdGQwHhcNMTgxMjEwMTEwOTEzWhcNMjgxMjA3MTEwOTEzWjAPMQ0wCwYDVQQD
-DARkZXYxMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE2vPYesmocPx/AjILggzB
-+YfeLn0v/3n/kIrcUClb76/+2Cji/WYUNmVIhtvPV6+P9uy/Vp70dLx57Wix/rcF
-eTAKBggqhkjOPQQDAgNHADBEAiAmhKAQwhn94fDsvSRCnnTzDHu6/r7qi/16FgYe
-Sjy1iQIgTYMzWYazaCAjMOBK3WPD328XAYa8Svce5ByOYY0r7vY=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIB0TCCAXegAwIBAgIJALKU6f36XQnAMAoGCCqGSM49BAMCMEUxCzAJBgNVBAYT
-AkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRn
-aXRzIFB0eSBMdGQwHhcNMTgxMjEwMDkzOTE5WhcNMjgxMjA3MDkzOTE5WjBFMQsw
-CQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJu
-ZXQgV2lkZ2l0cyBQdHkgTHRkMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZ/Wf
-eeYhIfhHKAbWTQfpU6oQlzqi8G/9UJcQLRhkCXmdBjQN6PyeuI16O8wBXEPBAUrC
-1l0R5+/Y6ldwNkIarKNQME4wHQYDVR0OBBYEFHWZRJxOikjvif01ZFBeXbnw92VZ
-MB8GA1UdIwQYMBaAFHWZRJxOikjvif01ZFBeXbnw92VZMAwGA1UdEwQFMAMBAf8w
-CgYIKoZIzj0EAwIDSAAwRQIhAO+Z+hzv2XJ0uT+yiyOIcc5dNyKrjuOyeu8RrMuE
-KzktAiA6/ozj0I1FLAH3Q2R9M5xIZW/UHNxTwl8TuHPxOVe7jg==
------END CERTIFICATE-----

rootfs/certs/deviceRefKey.ref_key

------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIBAAAAAAAAAAAAAAAAAAAAAAAAAAAAClprW2paa1thAAoAoGCCqGSM49
-AwEHoUQDQgAE2vPYesmocPx/AjILggzB+YfeLn0v/3n/kIrcUClb76/+2Cji/WYU
-NmVIhtvPV6+P9uy/Vp70dLx57Wix/rcFeQ==
------END EC PRIVATE KEY-----

rootfs/certs/opensslA71CH.cnf

-openssl_conf = nxp_engine
-
-[nxp_engine]
-engines = engine_section
-
-[engine_section]
-e2a71ch = e2a71ch_section
-
-[e2a71ch_section]
-engine_id = e2a71ch
-dynamic_path = $ENV::SNAP/jrcp/lib/libsss_a71ch_engine.so
-default_algorithms = RAND,ECDSA,ECDH
-init = 1

rootfs/certs/rootCA.pem

------BEGIN CERTIFICATE-----
-MIIDQTCCAimgAwIBAgITBmyfz5m/jAo54vB4ikPmljZbyjANBgkqhkiG9w0BAQsF
-ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6
-b24gUm9vdCBDQSAxMB4XDTE1MDUyNjAwMDAwMFoXDTM4MDExNzAwMDAwMFowOTEL
-MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJv
-b3QgQ0EgMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALJ4gHHKeNXj
-ca9HgFB0fW7Y14h29Jlo91ghYPl0hAEvrAIthtOgQ3pOsqTQNroBvo3bSMgHFzZM
-9O6II8c+6zf1tRn4SWiw3te5djgdYZ6k/oI2peVKVuRF4fn9tBb6dNqcmzU5L/qw
-IFAGbHrQgLKm+a/sRxmPUDgH3KKHOVj4utWp+UhnMJbulHheb4mjUcAwhmahRWa6
-VOujw5H5SNz/0egwLX0tdHA114gk957EWW67c4cX8jJGKLhD+rcdqsq08p8kDi1L
-93FcXmn/6pUCyziKrlA4b9v7LWIbxcceVOF34GfID5yHI9Y/QCB/IIDEgEw+OyQm
-jgSubJrIqg0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMC
-AYYwHQYDVR0OBBYEFIQYzIU07LwMlJQuCFmcx7IQTgoIMA0GCSqGSIb3DQEBCwUA
-A4IBAQCY8jdaQZChGsV2USggNiMOruYou6r4lK5IpDB/G/wkjUu0yKGX9rbxenDI
-U5PMCCjjmCXPI6T53iHTfIUJrU6adTrCC2qJeHZERxhlbI1Bjjt/msv0tadQ1wUs
-N+gDS63pYaACbvXy8MWy7Vu33PqUXHeeE6V/Uq2V8viTO96LXFvKWlJbYK8U90vv
-o/ufQJVtMVT8QtPHRh8jrdkPSHCa2XV4cdFyQzR1bldZwgJcJmApzyMZFo6IQ6XU
-5MsI+yMRQ+hDKXJioaldXgjUkK642M4UwtBV8ob2xJNDd2ZhwLnoQdeXeGADbkpy
-rqXRfboQnoZsG4q5WTP468SQvvG5
------END CERTIFICATE-----

snap/snapcraft.yaml

@@ -5,17 +5,17 @@ description: |
   NXP A71CH JRCP AWS Client for Rigado gateway
 
 grade: devel
-confinement: devmode
+confinement: strict
 
-slots:
+plugs:
   lib-cert:
+    interface: content
     content: lib-cert
-    read: 
-      - $SNAP/certs
+    target: certs
   lib-engine:
+    interface: content
     content: lib-engine
-    read: 
-      - $SNAP/jrcp/lib
+    target: jrcp/lib
 
 parts:
   pub-sub-sample:
@@ -44,5 +44,7 @@ apps:
       OPENSSL_CONF: $SNAP/certs/opensslA71CH.cnf
       LD_LIBRARY_PATH: $LD_LIBRARY_PATH:$SNAP/jrcp/lib
     command: bin/start-pub-sub-sample
-    plugs: &default-plugs [network-bind, network-control, network-setup-control, network]
+    daemon: simple
+    restart-condition: always
+    plugs: &default-plugs [network-bind, network-control, network-setup-control, network, lib-cert, lib-engine]